Air Circuit Breaker ACB NA8 Page C-01 NA8G Page C-37 NA1 Page C-71 Air Circuit Breaker NA8 2. Type designation N A 8 - □/ □ Number of poles in the breaker (pole 3 may be omitted) Shell grade rated current of the breaker Enterprise design code Enterprise’s air circuit breaker code NA8 Air Circuit Breaker 1. General With a rated current from 200A to 6300A and a rated operational voltage of AC 400V or 690V (specifications 3200 and 6300 AC 690V in trial production), the NA8 series air circuit breaker (hereinafter referred to as circuit breaker) and is mainly used in distribution networks with an AC frequency of 50Hz to distribute electric energy and protect lines and power equipment from being damaged by overload, under voltage, short cirucit, single-phase grounding and other failures. Having art-oriented appearance, high breaking capacity, zero arcover and a variety of intellectualized protection functions, the circuit breaker can be used for selective protection with accurate action, no unnecessary power cut, and better power supply reliability. The circuit breaker can be widely used for power stations, factories, mines and modern tall buildings, especially the distribution system in the intelligent building, and also widely used in green projects such as wind and solar power generation. The product allows the wire to enter from the upper or lower port, and the open frame (draw-out) circuit breaker has isolation function. The product meets the standards GB 14048.2 and IEC 60947-2 and has obtained the CCC certificate. C-01 > >> Enterprise feature code 3. Operation conditions 3.1 When the ambient air tempeature is -5℃~+40℃, the mean value is no greater than +35℃ within 24 hours. Note: If the upper limit is higher than +40℃ or lower limit lower than -5℃ in work, discussions shall be made between the user and the manufacturer. 3.2 Altitude: not higher than 2000m for the installation site. 3.3 When the ambient air temperature is +40℃, the relative humidity of the air shall not be higher than 50%; a higher relative humidity is allowed at a lower temperature; for example, for the wettest month, the maximum relative humidity averaged shall be 90% while the lowest temperature averaged in that month +20℃, and special measures shall be taken for the condensation occasionally produced due to temperature change. 3.4 Class of pollution: 3. 3.5 The installation category of the breaker’s main circuit is IV; when the rated operational voltage of the main circuit is less than or equal to AC400V, the installation category of the control circuit and auxiliary circuit is III, apart from the similarity between the under voltage release coil and the intellectual controller’s power transormer primary coil and the breaker; When the rated operational voltage of the major loop is greater than AC400V and less than or equal to AC690V, it is necessary for the control circuit and auxiliary circuit to be isolated from the major loop with an isolating transformer, and the highest operational voltage of the control circuit and auxiliary circuit is AC400V, the installation category of the control circuit and auxiliary circuit being III. Air Circuit Breaker NA8 Breaker off and no energy storage 4. Product structure Body structure Wiring terminals of the secondary circuit Under voltage release Shunt release Closing electromagnet Press Press Auxiliary contact OFF pushbutton Can release Energy storage handle ON/OFF indication ON pushbutton C Energy storage motor Breaker on and energy storage over Intellectual controller Energy storage indication Operating mechanism Press Press Storage Wiring terminals of the secondary circuit Zero arcover hood Fault-breaking indicator reset button Energy storage handle OFF pushbutton Breaker on and no energy storage ON pushbutton ON/OFF indication Energy storage indication Intellectual controller Data plate Fixed side panel Press Mounting hole Press Can release Breaker off and energy storage over Drawout structure Wiring terminals of the secondary circuit Press Press Side panel Storage Safety separator Baffle push rod Rocking handle work hole Guide rail Extraction draw plate Rocking handle deposit hole Locking device Position indication > >> C-02 Air Circuit Breaker NA8 Connected Test Disconnected Connected: both main circuit and secondary circuit are connected (3) Place the breaker body on the guide rail Connected Test Disconnected Test: the main circuit is disconnected, the safety separator woks well, and the secondary circuit is connected Connected (4) Move the breaker body onto the guide rail with a snap Test Disconnected Disconnected: neither main circuit nor secondary circuit is connected (5) Push the breaker body in, and the turn the breaker body to the working position (1) Draw-out socket placed horizontally (2) Pull out the guide rail C-03 > >> Air Circuit Breaker NA8 5. Main technical parameters 5.1 Main technical parameters Type NA8-1600 NA8-3200 NA8-63 00 Shell grade rated current Inm A 1600 3200 6300 Rated current In A 200,400,630,800, 1600,2000,2500,3200 4000,5000,6300 1000 1000 400,(690V In trial 400,(690V In trial 1000,1250,1600 1000 Nominal insulation voltage Ui V C Rated operational voltage Ue V 400,690 production) production) Rated ultimate short circuit breaking capacity Icu kA 55,30 100,75 125,85 Rated service short circuit breaking capacity Ics kA 42,25 100,75 125,85 Rated short time withstand current Icw,1s kA 42,25 85,- 100,- Frequency of operation (number of times/h) 20 10 10 Mechanical life 3000 3000 2000 Electric life 1000 500 500 0 0 0 Wire to enter from the Wire to enter from the Wire to enter from the upper or lower part upper or lower part upper or lower part Weight (3P/4P) Fixed type kg 22/26.5 52.5/66.5 - Draw-out type kg 38/55 98/121 200 Size (3P/4P) Height×width×depth Fixed type kg 320×(254/324)×251 354×(422/537)×331 - Draw-out type kg 351×(282/352)×345 431×(435/550)×445 471×780×445 Number of operations Flashover distance mm Line incoming pattern 5.2 Capacity-reducing usage 5.2.1 Capacity-reducing at different temperatures The following table shows the continual current-loading capacity of the circuit breakers and buses in each wiring mode at the corresponding ambient environment temperatures and under the conditions of the satisfaction of conventional heating with a similarity in capacity reducing between the breaker connected in a mixed way and the breaker connected horizontally. Style Wiring mode Ambient temperature℃ 1600 3200 6300 Draw-out type Front/rear horizontal wiring mode Rear vertical wiring mode -5~40 45 50 55 60 -5~40 45 50 55 60 200 200 200 200 200 200 200 200 200 200 400 400 400 400 400 400 400 400 400 400 630 630 630 630 550 630 630 630 630 580 800 800 800 800 700 800 800 800 800 700 1000 1000 1000 950 900 1000 1000 1000 950 900 1250 1250 1250 1150 1050 1250 1250 1250 1200 1100 1600 1550 1500 1450 1350 1600 1600 1550 1500 1450 1600 1600 1600 1600 1600 1600 1600 1600 1600 1600 2000 2000 2000 2000 1900 2000 2000 2000 2000 1950 2500 2500 2500 2450 2350 2500 2500 2500 2500 2400 3200 3200 3100 3000 2900 3200 3200 3200 3050 2900 4000 4000 4000 3900 3800 4000 4000 4000 3900 3800 5000 5000 4700 4600 4400 5000 5000 4800 4650 4500 6300 6100 6000 5500 5200 > >> C-04 Air Circuit Breaker NA8 5.2.2 Capacity-reducing at different altitudes When the altitude is higher than 2000m, there will appear changes in insulation property, cooling performance, pressure, and the performance can be modified in reference to the following table. Altitude (m) 2000 3000 4000 5000 Insulation withstand voltage (V) 3500 3000 2500 2000 Insulation voltage (V) 1000 800 700 600 Rated operational voltage (V) 690 580 500 400 Rated operational current (A) 1×In 0.96×In 0.92×In 0.87×In 5.3 Power loss Power loss is the total loss measured when the breaker is charged with the rated current. Power loss Breaker type NA8-1600 NA8-3200 NA8-6300 Rated current (A) Draw-out type (W) Fixed type (W) 200 115 45 400 140 80 630 161 100 800 215 110 1000 230 120 1250 250 130 1600 460 220 1600 390 170 2000 470 250 2500 600 260 3200 670 420 4000 550 - 5000 590 - 6300 950 - Note: The data and parameters in the above technical documentation result from tests and theoretical calculation, and can only be used as a general type selection guide. They cannot replace industrial practical experience or proof test. 5.4 Recommended bus for the breaker and recommendation for users to install the buses Inm(A) NA8-1600 In(A) Busbar C-05 NA8-3200 NA8-6300 200 400 630 800 1000 1250 1600 1600 2000 2500 3200 4000 5000 6300 Thickness (mm) 5 5 5 5 5 8 10 6 6 5 10 10 10 10 Width (mm) 20 50 40 50 60 60 60 100 100 100 100 100 100 100 Number of buses 1 1 2 2 2 2 2 2 3 4 4 5 7 8 > >> Air Circuit Breaker NA8 6. Dimensions and connection of the circuit breaker NA8-1600(In=200A~1250A) Draw-out type (horizontal connection is the default by the factory, vertical one to be made by users themselves) 4P central line 36 3P central line 60 12×φ11(3P) 16×φ11(4P) N Pole 25 35 310 149 275 a 78.5 351 7 76 95 15 210 74 76 76 Drawing illustrating the distance between mounting holes C 345(Connecting position) 391(Separating position) Wires connected horizontally 282(3P) 352(4P) Separator between phases (to be ordered separately) 149(3P) 155(4P) 7 78.5(3P) 75.5(4P) 2-φ8.5×10 35 95 2-φ8.5 145(3P) 95 63 215(4P) In(A) a(mm) 200、400、630 5 800、1000 10 1250 15 74 345(Connecting position) 391(Separating position) Wires connected vertically Note: If users intend to change the horizontal connection into vertical one on site, they need to replace the upper and lower buses on both sides with the same one as the central bus. NA8-1600(In=1600A) Draw-out type (horizontal connection is the default by the factory, vertical one to be made by users themselves) 4P central line Separator between phases (to be ordered separately) N Pole 15 35 275 310 179 35 351 7 3P central line 85 24×φ11(3P) 32×φ11(4P) 80.5 36 15 210 63.5 101 95 74 101 101 Wires connected horizontally 435(Connecting position) 481(Separating position) 282(3P) 352(4P) Wires connected horizontally Separator between phases (to be ordered separately) 145(3P) 63 149(3P) 155(4P) 78.5(3P) 75.5(4P) 2-φ8.5×10 35 95 2-φ8.5 7 95 74 215(4P) 435(Connecting position) 481(Separating position) Wires connected vertically Note: If users intend to change the horizontal connection into vertical one on site, they need to replace the upper and lower buses on both sides with the same one as the central bus. > >> C-06 Air Circuit Breaker NA8 NA8-1600(In=200A~1250A) Fixed type (horizontal connection is the default by the factory, vertical one to be made by users themselves) 22 Separator between phases (to be ordered separately) 4P central line 3P central line 12-φ11(3P) 16-φ11(4P) a 60 25 149 281 275 320 N Pole 15 35 210 48.5 76 76 76 Wires connected horizontally 92 100 251 237(3P) 307(4P) 254(3P) 324(4P) Wires connected horizontally Separator between phases (to be ordered separately) 149(3P) 155(4P) 100 4-φ8.5 a(mm) 200、400、630 5 800、1000 10 1250 15 48.5(3P) 45.5(4P) 237(3P) 307(4P) In(A) Drawing illustrating the distance between mounting holes 100 251 92 Wires connected vertically Note: If users intend to change the horizontal connection into vertical one on site, they need to replace the upper and lower buses on both sides with the same one as the central bus. NA8-1600(In=1600A) Fixed type (horizontal connection is the default by the factory, vertical one to be made by users themselves) 22 Separator between phases (to be ordered separately) 4P central line 155(4P) 45.5(4P) 3P central line 15 85 35 35 149(3P) 48.5(3P) 275 281 320 N Pole 24-φ11(3P) 32-φ11(4P) 101 237(3P) 307(4P) 100 101 92 Wires connected horizontally 341 254(3P) 324(4P) 101 80.5 210 Wires connected vertically 179 4-φ8.5 237(3P) 307(4P) Maximum bottom surface 33.5 100 15 Separator between phases (to be ordered separately) 100 341 92 Wires connected horizontally Note: If users intend to change the horizontal connection into vertical one on site, they need to replace the upper and lower buses on both sides with the same one as the central bus. C-07 > >> Air Circuit Breaker NA8 NA8-1600 Draw-out type Size of the hole to be drilled on the panel NA8-1600 Fixed type Size of the hole to be drilled on the panel 220 220 8-φ5 285 322 320 120 118 10-φ5 C Breaking mounting panel 6 118 Breaking mounting panel 118.5 78 From the center of the mounting hole on the right side of the breaker From the center of the mounting hole on the right side of the breaker 258 258 NA8-3200 Draw-out type size of the hole to be drilled on the panel 217.5 217.5(3P) 332.5(4P) 385 18 232 42 199 Datum line 2 N Datum line 1 Dimensions Dimensions 371 21.5 162.5 Datum line 1 Installation dimensions 47 97 10 162.5(3P) 277.5(4P) Datum line 2 18 376 φ14 φ14 11×17 145 175 φ11 11×17 268 155 328 10×φ6 Datum line 1 Size of the hole to be drilled on the panel > >> C-08 Air Circuit Breaker NA8 NA8-3200(In=1600A~2500A) Draw-out type (horizontal connection is the default by the factory) 42 133 29 14 25 φ11 50 78 115 115 115 84 Datum line 1 445(Connecting position) 492(Separating position) Note: If users want to change the horizontal connection into vertical one on site, they only have to turn the bus by 90°. NA8-3200(In=1600A~2500A) Draw-out type (vertical connection to be made by users themselves) 42 25 14 55 78 φ11 115 115 115 57.5 25 Datum line 1 445(Connecting position) 492(Separating position) Note: If users want to change the vertical connection into horizontal one on site, they only have to turn the bus by 90°. NA8-3200(In=1600A~3200A) Draw-out type (front connection) 78 25 φ11 29 15 C 115 115 Datum line 1 16.5 301 29 C-09 115 > >> In(A) C 1600,2000 20 2500 25 3200 30 Air Circuit Breaker NA8 NA8-3200(In=3200A) Draw-out type (horizontal connection is the default by the factory) 25 42 100 25 133 14 29 φ11 126 126 126 84 Datum line 1 C 445(Connecting position) 492(Separating position) Note: If users want to change the horizontal connection into vertical one on site, it is necessary to replace the upper and lower buses for the N and B phases with the same one as the A and C phases. NA8-3200(In=3200A) Draw-out type (vertical connection to be made by users themselves) 42 14 φ11 57 100 25 115 115 115 25 35.5 Datum line 1 445(Connecting position) 492(Separating position) Note: If users want to change the vertical connection into horizontal one on site, it is necessary to replace the upper and lower buses for the N and B phases with the different one from the A and C phases. 基准线2 N 163 13 191 NA8-3200 Fixed type 11 200(3P ) 315(4P ) 200 11 246 44 8 基准线1 > >> C-10 Air Circuit Breaker NA8 NA8-3200 Fixed type Size of the hole to be drilled on the panel 4×φ12 371 70.5 311 268 150 328 200(3P) 315(4P) 200 8×φ6 Datum line 1 Datum line 1 NA8-3200(In=1600A~2500A) Fixed type (horizontal connection is the default by the factory) 33 φ11 50 133 29 25 14 78 115 115 115 47.5 Datum line 1 Note: If users want to change the horizontal connection into vertical one on site, they only have to turn the bus by 90°. NA8-3200(In=1600A~2500A) Fixed type (vertical connection to be made by users themselves) 33 25 14 55 78 φ11 115 115 115 21 25 基准线1 Note: If users want to change the vertical connection into horizontal one on site, they only have to turn the bus by 90°. C-11 > >> Air Circuit Breaker NA8 NA8-3200(In=1600A~3200A) Fixed type (front connection) 60 C 25 φ11 300 15 78 60 73 115 115 115 C Datum line 1 In(A) C 1600,2000 20 2500 25 3200 30 NA8-3200(In=3200A) Fixed type (horizontal connection is the default by the factory) 100 25 133 14 φ11 29 25 33 126 126 126 47.5 Datum line 1 Note: If users want to change the horizontal connection into vertical one on site, it is necessary to replace the upper and lower buses for the N and B phases with the same one as the A and C phases. NA8-3200(In=3200A) Fixed type (vertical connection to be made by users themselves) 33 25 57 100 14 φ11 25 49 115 115 115 Datum line 1 Note: If users want to change the vertical connection into horizontal one on site, it is necessary to replace the upper and lower buses for the N and B phases with the different one from the A and C phases. > >> C-12 Air Circuit Breaker NA8 NA8-6300 Draw-out type size of the hole to be drilled on the panel 217.5 42 385 18 199 Datum line 2 232 562.5 40 Datum line 1 Dimensions Dimensions 371 328 155 268 18 145 97 376 11×17 Datum line 2 175 φ14 162.5 335 47 335 10×φ6 Datum line 1 Datum line 1 Installation dimensions Mounting dimension NA8-6300(In=6300A) Draw-out type (vertical connection is the default by the factory) Datum line 1 14 φ11 55 125 115 50.5 25 25 C-13 > >> 115 115 115 115 Air Circuit Breaker NA8 NA8-6300(In=4000A~5000A) Draw-out type (horizontal connection is the default by the factory) φ11 25 29 133 25 14 78 115 115 115 115 115 C 124 Datum line 1 Note: If users want to change the horizontal connection into vertical one on site, they only have to turn the bus by 90°. NA8-6300(In=4000A~5000A) Draw-out type (vertical connection to be made by users themselves) 14 Datum line 1 φ11 115 115 115 115 55 78 115 25 97.5 25 Note: If users want to change the vertical connection into horizontal one on site, they only have to turn the bus by 90°. C 25 φ11 29 78 15 NA8-6300(In=4000A~5000A) Draw-out type (front connection) 115 301 115 115 115 115 Datum line 1 C 4000 20 5000 25 23.5 29 In(A) > >> C-14 C-15 > >> Main circuit TA QF XT XT Breaker body A、B、C 2 SAL S + DC24V - 1 3 5 4 7 6 HL1 Fault indication 9 8 10 16 18 20 22 13 15 17 19 21 25 24 27 26 29 F 28 31 DT 30 SB1 33 Q/QY 32 SA 34 HL2 35 M 36 37 38 Notes: 1. Four open (contacts) and four close from DF1 to DF8 with a common point available conventionally, two open and two close from DF9 to DF12 with a common point available additionally for Inm=1600 when special order is made for alternating current, four open and four close from DF1 to DF8 with a common point available only for Inm=1600 in case of direct current, contact capacity (DC220V 0.5A). 2. Various control voltages of the 1600 has to be put to #1 and #2 after the power module outputs DC24V. 3. The wiring for the part indicated by dashed lines shall be made by users. 37 40 39 43 46 37 40 43 46 48 41 50 51 49 42 47 48 49 50 51 52 53 OFF Auxiliary contact indication available for users 46 AX 45 37 38 39 40 41 42 43 44 45 46 47 48 50 51 49 57 55 52 53 54 L1 FU 37 39 41 43 45 47 38 40 42 44 46 48 IV. Three N.O. and three N.C. contacts L2(N) Control power supply FU AC auxiliary contact for standby application 56 54 III. Six groups of changeover contacts 43 44 HL4 On indication 40 HL3 Under Energy storage Power-driven Open Close voltage indication energy storage 23 Intelligent controller 14 Intelligent controller 11 12 SB2 Dt——closing electromagnet F——shunt release Q/QY——under voltage release SAL——sensitive switch SA——travel switch M——energy storage motor AX——auxiliary contact Fu——fuse SB1——ON pushbutton SB2——OFF pushbutton HL1~HL4——indicator light Type of AX auxiliary contact available for users XT——connection terminal TA——current transformer QF——breaker S——power module I. Four groups of changeover II. Five groups of changeover #1、#2：input (terminals) for intellectual controller auxiliary power supply contacts(default configuation) contacts #4、#5、#6：faulty tripping contact output (#5 is the common terminal, AC250V 5A) 38 39 41 42 44 45 47 38 39 41 42 44 45 47 48 N Air Circuit Breaker NA8 7. Connection diagram for the secondary circuit Connection diagram for the secondary circuit of the NA8-1600 optional standard type intellectual controller Main circuit TA QF XT XT 1 3 2 SAL 5 4 7 6 HL1 Fault indication 9 8 10 11 12 13 16 18 20 22 15 17 19 21 23 Intelligent controller 14 25 24 S + DC24V - 27 26 SB2 Intelligent controller 29 F 28 31 DT 30 SB1 33 Q/QY 32 SA 34 HL2 35 M 36 37 38 Under Energy storage Power-driven Open Close voltage indication energy storage 3200 and 6300 shell controller power supply: DC220V and DC110V 3200 and 6300 shell controller power supply: AC230V and AC400V Breaker body A、B、C Notes: 1. Four open (contacts) and four close from DF1 to DF8 with a common point available conventionally, one open and one close from DF9 to DF10 with a common point available additionally when special order is made for alternating current, contact capacity (DC220V 0.5A). 2. When the controller voltage of 3200 and 6300 shells is AC230V/400V, it can be directly put to #1 and #2; if the voltage is DC220V/110V, it has to be put to #1 and #2 after the power module outputs DC24V. 3. The wiring for the part indicated by dashed lines shall be made by users. 37 40 43 46 37 40 43 46 Dt——closing electromagnet F——shunt release Q/QY——under voltage release SAL——sensitive switch SA——travel switch M——energy storage motor AX——auxiliary contact Fu——fuse SB1——ON pushbutton SB2——OFF pushbutton HL1~HL4——indicator light Type of AX auxiliary contact available for users XT——connection terminal TA——current transformer QF——breaker S——power module I. Four groups of changeover II. Five groups of changeover #1、#2：input (terminals) for intellectual controller auxiliary power supply contacts(default configuation) contacts #4、#5、#6：faulty tripping contact output (#5 is the common terminal, AC250V 5A) 38 39 41 42 44 45 47 38 39 41 42 44 45 47 48 N 40 41 48 49 50 51 47 46 AX 45 48 49 50 51 37 39 41 43 45 47 38 40 42 44 46 48 IV. Three N.O. and three N.C. contacts 52 53 50 52 49 51 38 40 42 44 46 48 43 45 47 37 39 41 FU L1 FU L2(N) Control power supply AC auxiliary contact for standby application 54 V. Four N.O. and four N.C. contacts OFF Auxiliary contact indication available for users 43 44 HL4 42 On indication 39 HL3 Air Circuit Breaker NA8 Connection diagram for the secondary circuit of the NA8-3200~6300 optional standard type intellectual controller > >> C C-16 C-17 > >> TA QF XT S + DC24V- 2 SAL 5 4 HL1 D13 7 6 Fault indication FU D15 D14 9 8 11 10 13 15 14 1 16 + + - 3 + + 5 6 14 15 12 13 20 D02 18 7 8 22 24 - + 26 18 19 16 17 D03 ST201 COM D11 D12 D13 D01 4 + 16 17 - ST-4 power module PE 14 15 - DC24V 2 12 13 N L 17 19 21 23 27 29 F 28 31 DT 30 SB2 33 Q/QY 32 SB1 SA 34 35 M 36 HL2 37 38 40 41 On indication 39 HL3 42 47 46 AX 45 48 49 50 51 OFF Auxiliary contact indication available for users 43 44 HL4 52 53 41 40 38 39 37 42 38 39 37 47 48 46 43 40 41 42 43 44 45 37 39 41 49 46 43 45 47 38 40 42 44 46 48 50 51 IV. Three N.O. and three N.C. contacts 47 48 II. Five groups of changeover contacts 44 45 I. Four groups of changeover contacts(default configuation) 57 55 AC auxiliary contact for standby application 56 54 Type of AX auxiliary contact available for users Under Energy storage Power-driven Open Close voltage indication energy storage 25 Intelligent controller 红 Intelligent controller D16 12 绿 Device ST-DP Profibus-DP DT——closing electromagnet F——shunt release Q/QY——under voltage release SAL——sensitive switch SA——travel switch M——energy storage motor #1、#2：Intelligent controller auxiliary supply input AX——auxiliary contact Fu——fuse SB1——ON pushbutton #3：PE SB2——OFF pushbutton HL1~HL4——indicator light #4、# 5、# 6：Fault trip contact output XT——connection terminal TA——current transformer (# 5 for the public side, AC250V 5A) QF——breaker S——power module ST-DP——Device #7、#8、#9：Auxiliary contact output ST201——Relay module(Optional) ST-4——Power module(Optional) (#8 for the public side, AC250V 5A) #14、#15：RS485 communication interface (communication type when) Notes: 1. Four open (contacts) and four close with a common point available #16、#17：Sub-gate output conventionally, two open and two close with a common point available additionally #18、#19：Switch output for Inm=1600 when special order is made for alternating current. Four open #26、#27：Load 1 Alarm (contacts) and four close from DF1 to DF8 with a common point available only for #10、#11：Load 2 Alarm 1nm=1600 in case of direct current, contact capacity (AC250V 5A). #20、#21、#22、#23：A、B、C、NVoltage signal input 2. The wiring for the part indicated by dashed lines shall be made by users. (multi-functional time) (Maximum voltage AC400V) #24、#25：External transformer input XT 1 PE 3 Breaker body A、B、C Main circuit N PE N L1 Air Circuit Breaker NA8 7. Connection diagram for the secondary circuit Connection diagram for the secondary circuit of the NA8-1600 optional type multifunctional intellectual controller TA QF XT 2 SAL 5 4 HL1 D13 7 6 Fault indication FU D15 D14 9 8 11 10 D16 13 12 绿 Device ST-DP 红 1 16 + + - 3 + + 5 6 14 15 12 13 20 D02 18 8 22 24 16 17 D03 ST201 15 17 19 21 25 27 26 Intelligent controller 29 F 28 31 DT 30 SB2 33 Q/QY 32 SB1 SA 34 35 M 36 HL2 37 38 40 41 42 On indication 39 HL3 47 46 AX 45 48 49 50 51 52 53 OFF Auxiliary contact indication available for users 43 44 HL4 37 38 39 40 41 42 43 44 45 46 47 48 I. Four groups of changeover contacts(default configuation) 37 38 39 40 41 42 43 44 45 46 47 48 II. Five groups of changeover contacts 37 39 41 49 43 45 47 38 40 42 44 46 48 IV. Three N.O. and three N.C. contacts 50 51 AC auxiliary contact for standby application 54 Type of AX auxiliary contact available for users Under Energy storage Power-driven Open Close voltage indication energy storage 3200 and 6300 shell controller power supply: DC220V and DC110V 23 + 18 19 - DT——closing electromagnet F——shunt release Q/QY——under voltage release SAL——sensitive switch SA——travel switch M——energy storage motor #1、#2：Intelligent controller auxiliary supply input AX——auxiliary contact Fu——fuse SB1——ON pushbutton #3：PE SB2——OFF pushbutton HL1~HL4——indicator light #4、# 5、# 6：Fault trip contact output XT——connection terminal TA——current transformer (# 5 for the public side, AC250V 5A) QF——breaker S——power module ST-DP——Device #7、#8、#9：Auxiliary contact output ST201——Relay module(Optional) ST-4——Power module(Optional) (#8 for the public side, AC250V 5A) #14、#15：RS485 communication interface (communication type when) Notes: 1. Four open (contacts) and four close with a common point available #16、#17：Sub-gate output conventionally, one open and one close with a common point available additionally #18、#19：Switch output for when special order is made for alternating current. Contact capacity AC250V 5A #26、#27：Load 1 Alarm 2. When the controller voltage of the 3200 and 6300 shells is AC230V/400V, it #10、#11：Load 2 Alarm can be directly put to #1 and #2; if the voltage is DC220V/110V, it has to be put to #20、#21、#22、#23：A、B、C、NVoltage signal input #1 and #2 after the power module outputs DC24V. (multi-functional time) (Maximum voltage AC400V) 3. The wiring for the part indicated by dashed lines shall be made by users. #24、#25：External transformer input S + DC24V- 7 COM D11 D12 D13 D01 4 + 16 17 - ST-4 power module PE 14 15 - DC24V 2 12 13 N L Intelligent controller 14 Profibus-DP 3200 and 6300 shell controller power supply: AC230V and AC400V XT 1 PE 3 Breaker body A、B、C Main circuit N PE N L1 Air Circuit Breaker NA8 Connection diagram for the secondary circuit of the NA8-3200 and 6300 optional type multifunctional intellectual controller > >> C C-18 Air Circuit Breaker NA8 Connection of the secondary circuit (5- 7)m m Conductor cross-section S: 2 (0.5~1.2)mm Connecting wire of secondary circuit Special screwdriver for the connection of secondary circuit Screwless terminal connection system is used for the secondary connection of the breaker. The connection is made by using special flat blade screwdriver and single-core conductor by reference to the connectin diagram for the seondary circuit. Screwless terminal system is used for the connection of the secondary circuit. Insert the special screwdriver into the terminal hole shown in the figure to deform the clamp, insert the conductor into the corresponding terminal hole, and then take out the screwdriver. C-19 > >> Air Circuit Breaker NA8 8. Intellectual controller and protective characteristics 8.1 User interface of the standard type (M type) and multifunctional type (H type) intellectual controllers. 1 C 2 4 5 3 6 8 7 9 10 11 13 12 ⑴Brand “CHINT” brand ⑵LCD window LCD window capable of showing the current for each phase, various setting parameters, rated current, fault current, tripping time, and the like ⑶SET key Switch to the set default menu (left arrow key, when it is necessary to move leftwards or rightwards for the set interface). ⑷UP key Move the box select menu under the current menu to change the position of said box upwards, and perform the setting of the parameter ADD in the parameter setup menu. ⑸RETURN key Exit the current menu and go to the previous menu, or cancel the value of the current setup parameter. ⑹ACK key Go to the next menu of the currently selected select box (go to the set state under the set interface, and exit the set state by double pressing the key). ⑺DOWN key Move the box select menu under the current menu to change the position of said box downwards, and perform the setting of the parameter SUBTRACT in the parameter setup menu. ⑻INQUIRY key Switch to the inquiry default menu (right arrow key, when it is necessary to move leftwards or rightwards for the set interface). ⑼“IR” lamp Over current long time delay fault indication ⑽“Isd” lamp Short-circuit short-time delay fault indication ⑾“test” lamp Button for simulating instantaneous tripping test ⑿“Ii” lamp Short-circuit instantaneous fault indication ⒀“Ig” lamp Asymmetric grounding, neutral line fault indication > >> C-20 Air Circuit Breaker NA8 8.2 Default interface and menu structure for the multifunctional controller The multifunctional controller provides 4 title menus (measurement menu, parameter setup menu, protection parameter setup menu, history record and maintenance menu) and 1 default menu. Default interface for the multifunctional controller 1002 A N A B C 150 100 50 0 8.2.1 Structure of the measurement menu 1 menu 2 menu 3 menu 4 menu Ia= 1000A Ia Ib Ic In Ib= 1001A Ic= 998A In= 0A Ig= 0A or I△n=0.00A Ia= 1300A Ib= 1400A Instantaneous value Maximum Ic= 1380A In= 200A Ig= 0A or I△n=0.00A Reset(+/-) Unbalance rate Current I 100% Ia=3% Ib=5% Ic=1% Current thermal capacitance 15min Real-time value Ia= 1000A Ia,Ib, Ib= 1000A Ic,In Ic= 998A In= 0A Required value Ia= 1050A Maximum Ib= 1040A Ic= 1010A In= 0A Reset(+/-) Uab= 380V Ubc= 380V Instantaneous value Uca= 380V Uan= 220V Voltage U Ubn= 220V Ucn= 220V Frequency F Mean value Uav= 380V Unbalance rate 0% Phase sequence A,B,C 50Hz EP= 200kWh Total electric energy EQ= 10kvarh ES= 200kVAh Electric energy E Input electric energy Output electric energy Electric energy reset C-21 > >> EP= 200kWh EQ= 200kvarh EP= 0kWh EQ= 0kvarh Reset 5 menu Air Circuit Breaker NA8 1 menu 2 menu 3 menu 4 menu 5 menu P= 660kW P，Q，S Q= 0kvar S= 660kVA -1.00 Inductive Power factor PFa= 1.00 PFb= 1.00 PFc= 1.00 Instantaneous value Pa= 220kW Pa，Qa，Sa C Qa= 0kvar Sa= 220kVA Pb= 220kW Power P Pb，Qb，Sb Qb= 0kvar Sb= 220kVA Pc= 220kW Pc，Qc，Sc Qc= 0kvar Sc= 220kVA P= 660kW P，Q，S Q= 0kvar S= 660kVA Required value P= 661kW Q= 2kvar Maximum S= 662kVA Reset(+/-) Ia Ib Ia，Ib Ic，In Ic In Waveform Uan Uan，Ubn Ubn Ucn Ucn Ia= 1000A I(A) Ib= 1000A Ic= 1000A In= 1000A Base form Uab= 380V Harmonic H Ubc= 380V U(V) Uca= 380V Uan= 220V Ubn= 220V Ucn= 220V Ia= 0.0% I(%) Ib= 0.0% Ic= 0.0% In= 0.0% Uab= 0.0% THD Ubc= 0.0% Uca= 0.0% U(%) Uan= 0.0% Ubn= 0.0% Ucn= 0.0% > >> C-22 Air Circuit Breaker NA8 1 menu 2 menu 3 menu 4 menu 5 menu Ia= 0.0% Ib= 0.0% thd I(%) Ic= 0.0% In= 0.0% Uab= 0.0% Ubc= 0.0% Uca= 0.0% thd U(%) Uan= 0.0% Ubn= 0.0% Ucn= 0.0% Ia FFT THD=0.0% Ia(3,5,7...31) 0.0% 3 5 7 9 11...31) Ib FFT THD=0.0% Ib(3,5,7...31) I(3,5,7...31) Harmonic H 0.0% 3 5 7 9 11...31) Ic FFT THD=0.0% Ic(3,5,7...31) 0.0% 3 5 7 9 11...31) In FFT THD=0.0% In(3,5,7...31) 0.0% 3 5 7 9 11...31) FFT Uab FFT THD=0.0% Uab(3,5,7...31) 0.0% 3 5 7 9 11...31) Ubc FFT THD=0.0% Ubc(3,5,7...31) 0.0% 3 5 7 9 11...31) U(3,5,7...31) Ubc FFT THD=0.0% Ubc(3,5,7...31) 0.0% 3 5 7 9 11...31) Uca FFT THD=0.0% Uca(3,5,7...31) 0.0% 3 5 7 9 11...31) 8.2.2 Structure of the parameter setup menu 1 menu 2 menu 3 menu Setting of the System type =3φ4W 4CT measurement meter Line incoming pattern Test tripping Remote locking Test & lock =Wire to enter from the upper port Test type =three section protection Test parameter =1:9999A Test initiation =start Remote locking =unlock Parameter locking Parameter locking Communication setting User password (change) =0000 =3 Baud rate =9.6K =Do1 =Do1 Executive mode =N.O. pulse =360s I/O state I/O state DO1 DO2 DO3 DI1 1 1 1 1 C-23 > >> =locking =0000 =Regional interlocking I/O setting Parameter locking (Input) user password Address Function setting 4 menu 5 menu Air Circuit Breaker NA8 8.2.3 Structure of the protection parameter setup menu 1 menu Current protection 2 menu Long time delay 3 menu 4 menu IR e.g.：=1000A=100%In Current protection e.g.：=ON Delay time e.g.：=C1，Is@6IR Cooling time e.g.：=3h Definite-time limit Short-time delay Operating current e.g.：=10000A=10.0In Neutral phase protection Neutral phase protection e.g.：=200% Operating current e.g.：=800A Delay time e.g.：=0.4s Coefficient of earthing e.g.：=6.0 Starting current e.g.：=600A Starting time e.g.：=0.1s Return current e.g.：=100A Return time e.g.：=0.1s Operating current e.g.：=8.0A Setup delay time e.g.：=0.75s Starting current e.g.：=5.0A Starting time e.g.：=0.1s Return current e.g.：=4.0A Return time e.g.：=0.1s Current protection Grounding alarm Leakage protection Electric leakage alarm Executive mode e.g. =I the first method Unloading value 1 e.g.=800A Unloading time 1 e.g.=50%tR Unloading value 2 e.g.=700A Unloading time 2 e.g.=25%tR Under voltage Voltage protection Delay time Instantaneous Ground protection Load monitoring Inverse-time limit Operating current Over voltage U unbalanced Executive mode e.g.：=Alarm Startup value e.g.：=200V Starting time e.g.：=0.2s Return value e.g.：=320V Return time e.g.：=60.0s Executive mode e.g.：=Alarm Startup value e.g.：=480V Starting time e.g.：=1s Return value e.g.：=400V Return time e.g.：=60.0s Executive mode e.g.：=Alarm Startup value e.g.：=10% Starting time e.g.：=1s Return value e.g.：=5% Return time e.g.：=60.0s 5 menu e.g.：=5000A=5.0IR e.g.：=0.1s e.g.：=2000A=2.0IR e.g.：=C1，0.Is@6IR C > >> C-24 Air Circuit Breaker NA8 8.2.4 Structure of the history record and maintenance menu 1 menu 2 menu 3 menu 4 menu 5 menu e.g. phase sequence alarm, Current alarm inverse power alarm, over frequency alarm… Number of operations Contact wear Product information Total number of times e.g.:300 Number of operations e.g.:219(ACK key, Reset) Total wear e.g.:120 Contact wear e.g.:20(ACK key, Reset) Zhejiang CHINT electrics co., LTD Under voltage tripping T=0.20s Umax=0V e.g.: 1 Under voltage tripping 2004/06/17 11:24:59 6/17 F=0.00Hz Uab= 0V Ubc= 0V Uca= 0V Tripping record …… …… A phase short-circuit definite-time limit T= 0.4s I= 4300A e.g.: 8 (for) short-circuit definite-time limit 2004/05/03 15 : 28 : 25 5/30 Ia= 4300A Ib= 4200A Ic= 4000A In= 150A e.g.: 1 DI (for) DI input alarm 2004/07/16 Di input alarm Di1 2004/07/16 20 : 38 : 45 Alarm logging Position changing record …… e.g.: Under voltage alarm 8 Under voltage alarm Umax= 0V 2004/06/20 2004/06/20 Note: Up to 8 times of alarms can be recorded 22 : 29 : 40 e.g.: Local switch on 1 (for) local switch on 2002/06/18 2002/06/18 9 : 30 : 56 …… …… e.g.: 8 (for) testing tripping 2002/06/15 Note: Up to 8 times can be recorded Notes: a. The actual menu will vary depend on the function selected by the user. b. The controller starts screensaver automatically 10min later. C-25 > >> …… Test tripping 2002/06/15 10 : 30 : 20 Air Circuit Breaker NA8 8.3 List of controller functions Standard configuration Standard type (M type) Multifunction type (H type) 1. Quadruple over current protection (for overload, short-time delay time, 1. Quadruple over current protection (for overload, short-time delay time, instantaneous, grounding); grounding corresponds to vector sum (T instantaneous, grounding); grounding corresponds to vector sum (T type); type); 2. Parameter setup: fixed value keyboard setting function; 2. Parameter setup: fixed value keyboard setting function; 3. Current measurement function; 3. Current measurement function; 4. Current unbalance rate measurement function; 4. Current unbalance rate measurement function; 5. Two test functions: 5. Two test functions: (1) Instantaneous tripping test simulated on the panel; (1) Instantaneous tripping test simulated on the panel; (2) Triple over current, grounding/leakage and operating time tests (2) Triple over current, grounding/leakage and operating time tests simulated by software; simulated by software; 6. Fault recording function: 8 times of failures can be recorded; 6. Fault recording function: 8 times of failures can be recorded; 7. Self-diagnostic function; 7. Self-diagnostic function; 8. MCRmake/break function; 8. MCRmake/break function; 9. Communication function: MODBUS protocol; 9. Alarm logging function; 10. Alarm logging function; 10. Recording number of operations; 11. Recording number of operations; 11. Contact wear; 12. Contact wear; 13. Position changing record; 13. Position changing record; 13. Human-machine interface: 28×43 LCD; 14. Human-machine interface: 28×43 LCD; 14. Heat capacity measurement 15. Heat capacity measurement C Selection of optional additional functions P function H function 1. Voltage measurement; 1.Voltage measurement; 2. Voltage unbalance measurement; 2.Voltage unbalance measurement; 3. Frequency measurement; 3.Frequency measurement; 4. Phase sequence measurement; 4.Phase sequence measurement; 5. Electric energy measurement; 5.Electric energy measurement; 6. Power measurement; 6.Power measurement; 7. Power factor measurement; 7.Power factor measurement; 8. Earth-current grounding protection; 8.Earth-current grounding protection; 9. Leakage protection; 9.Leakage protection; 10. Load monitoring function; 10.Load monitoring function; 11. Quadruple D0 output function; 11.Quadruple DO output function; 12. DI input function; 12.DI input function; 13. Regional interlocking function; 13.Regional interlocking function; 14. Under and over voltage protection; 14.Under and over voltage protection; 15. Measurement of harmonic current; 16. Neutral phase protection > >> C-26 Air Circuit Breaker NA8 8.4 Characteristic parameters of the standard type intellectual controller Over current protection characteristics 10000 5000 IR=(0.4-1)In 1000 500 200 tR=(1~30)s 100 50 20 T(s) 10 I2t on 5 Isd=（1.5~10）IR 2 Isd=（1.5~10）IR 1 2 I t off 0.5 0.2 0.1 Ii=（2~15)In 0.05 0.02 0.01 0.2 0.3 0.5 0.6 0.8 1 2 3 4 5 8 10 20 1.5 30 40 50 60 80 X IR Neutral line (grounding) fault protection characteristic 10000 5000 Ig=(0.2-1)In MAX 1200A MIN 120A 1000 500 200 100 50 20 T(s) 10 I2t on 5 2 1 0.5 0.2 0.1 I2 t off 0.05 0.02 0.01 0.05 0.1 0.2 0.3 0.4 0.5 0.6 0.8 1 X In C-27 > >> 2 3 4 5 6 8 10 20 30 2 3 4 5 6 8 10 20 30 Air Circuit Breaker NA8 8.4.1 Over current long time delay protection characteristic Rated current range IR (0.4~1)In +OFF(Power off) Error ±10% Line current I Operating time tR(s) ≤1.05 IR No actuation within 2h Time error >1.30 IR <1h and then actuate 1.5 IR 16 32 64 128 192 256 320 384 480 2.0 IR 9 18 36 72 108 144 180 216 270 6.0 IR 1 2 4 8 12 16 20 24 30 ±15% Explanation for parameter setting: Long-time delay operating current continuously adjustable: IR=(0.4~1)×In. The long-time delay tripping time represents the inverse-time limit characteristic, and nine optional settings are readily available for tripping time in case of 6IR: tR=(1-2-4-8-12-16-20-24-30)s. Example 1: If it is know that in conditions of I=6IR, the tripping time setting value is 2s, and now the line current I=1.5IR, then the actual tripping time TR can be worked out by: (1.5IR)2×TR=(6IR)2×2. The answer is obtained as TR=32s. C 8.4.2 Short-circuit short-time delay protection characteristic Rated current range IR (1.5~10)IR +OFF(Power off) Error ±15% Line current I Operating time tR(s) ＜0.85 Isd No-action ＞1.15 Isd Time-delay action Definite-time limit 0.1,0.2,0.3,0.4,0.5,0.6,0.7,0.8,0.9,1.0 Inverse-time limit I≤10IR Time error ±15% 0.1tR Definite-time limit I＞10IR 0.1,0.2,0.3,0.4,0.5,0.6,0.7,0.8,0.9,1.0 Explanation for parameter setting: The short-circuit short-time delay protection operating current continuously adjustable: Isd=(1.5~10)×IR. The short-time delay tripping time can be selected as tsd=(0.1s~1s). When the tripping time is set as inverse-time limit operating characteristic, there are two cases: ① the case of I＞1.15Isd and I＞10IR represents the definite-time limit; ② the case of I＞1.15Isd and I≤10IR represents the inverse-time limit characteristic and the actual tripping time is calculated according to the formula tsd=0.1tR, wherein tR is the long-time delay time, tsd is the short-time delay time. The method for setting the current and time for the short-circuit short-time delay protection is similar to that for over current long time delay protection. 8.4.3 Short-circuit instantaneous protection characteristic Rated current range Ii Error (2~15)In ±15% +OFF(Power off) Line current I Operating Characteristics ≤0.85Ii No-action >1.15Ii Action Explanation for parameter setting: The instantaneous protection operating current is continuously adjustable: Ii=(2~15)In. The method for setting the current for the instantaneous protection is similar to that for over current long time delay protection setting. 8.4.4 Single-phase grounding fault protection characteristic Rated current range IR (1.5~10)IR +OFF(Power off) Error ±10% Line current I Operating time tg(s) ＜0.9 Ig No-action ＞1.1 Ig Time-delay action 0.1, 0.2, 0.3, 0.4, 0.5, Time error ±15% Inverse-time limt shearing factor k Setting range Setting step 1.5~6，OFF 0.5 0.6, 0.7, 0.8, 0.9, 1.0 Note: k is the fault current multiple (I/Ig), I is the fault current, Ig is the setup operating current. > >> C-28 Air Circuit Breaker NA8 Explanation for parameter setting: The single-phase grounding protection operating current can be adjusted and selected: Ig=(0.2~1)×In. The protection delay tripping time can be selected as tg=(0.1s~1s). ① The case of I≥kIg or k set to OFF represents the definitetime limit characteristic, tg=0.1s-0.2s-0.3s-0.4s-0.5s-0.6s-0.7s 0.8s-0.9s-1s； ② The case of the current meeting the condition of 1.1Ig≤ I＜kIg represents the inverse-time limit characteristic and the actual tripping time is calculated according to the formula t=Tg×k×Ig/I. In the formula, I is the line current, Tg is the setup delay time, Ig is the setup operating current, t is the operating time, k is the shearing factor. The method for setting the parameter is similar to that for over current long time delay protection. Note: For the intellectual controller, the current settings for the long- and the short-time delay and the instantaneous protection should not come across each other, and the condition of IR＜Isd＜Ii must be ensured. 8.5 Explanation for auxiliary functions a. Explanation for test conditions When onsite adjustment, periodical inspection or overhaul is made with the controller supported by the breaker, breaking several times is necessary by using the test functions of the controller to check the cooperation of the controller and the breaker. When the breaker on, press the “test” button, and the intellectual controller will trip instantaneously to cut off the breaker. Note: ① This function can be used only when onsite adjustment or overhaul for the breaker is made, and shall not be used during the normal operation. ② Each time before the controller is switched on, it is necessary to press the reset button in the upper position of the controller panel so that the breaker can be switched on again for operation. b. Explanation for fault memory The controller still has the function of fault memory after reset or de-energized to keep a latest historical event for post analysis. Only when there is a new fault again, the original information is cleared with the current latest faulty data saved. For the inquiry method, refer to the above explanation about fault display. 8.6 Explanation for display function When the rated current is greater than or equal to 400A, the primary current shall not be lower than 0.4In for single phase, and 0.2In for three phases for normal operation of the controller. When the rated current is less than 400A, the primary current shall not be lower than 0.8In for single phase, and 0.4In for three phases for normal operation of the controller. Note: When the AC220V S power module is energized, and the voltage falls to AC120V, there will be no display on the controller When the AC380V S power module is energized, and the voltage falls to AC200V, there will be no display on the controller a. Current display Error range for current display: ±5% b. Voltage display Error range for voltage display: ±1.5% C-29 > >> 9. Accessories 9.1 Under voltage release When the under voltage release is not energized, neither power-driven nor manual operation can make the breaker on. For the under voltage release, there are two varieties: instantaneous and time delay operations. The time for the under voltage time delay release is Inm=1600A, the time can be selected from but not adjustable in the range of (0~7)s; Inm=3200A or 6300A, the time can be selected from and adjusted among 0.5s, 1s, 3s and 5s. When, within 1/2 delay time, the power voltage returns to 85%Ue or above, the breaker will not get disconnected. Operating characteristic: Rated operational voltage Ue(V) AC230 AC400 Operating voltage (V) (0.35~0.7)Ue Reliable switching voltage (V) (0.85~1.1)Ue Reliable not-switching voltage (V) ≤0.35Ue Power consumption (W) 20VA Under voltage release (Inm=1600A) Under voltage release (Inm=3200A、6300A) 9.2 Shunt release After the shunt release is energized, the breaker is switched off instantaneously to allow remote operation. Operating characteristic: Rated control supply voltage Us(V) AC230 AC400 Operating voltage (V) (0.7~1.1)Us Power consumption (W) 200VA Breaking time (50±10)ms Shunt releasee (Inm=1600A) DC220 DC110 200W Air Circuit Breaker NA8 Shunt release (Inm=3200A、6300A) Power operating mechanism (Inm=3200A、6300A) 9.3 Closing electromagnet After the motor energy storage is ended, energizing the closing electromagnet will make the energy storage spring force of the operating mechanism to be released instantaneously to rapidly switch the breaker on. 9.5 Auxiliary contact (with a common point) Standard type: 4 groups of changeover contacts (default configuration) are provided Special type: 5 groups of changeover contacts 6 groups of changeover contacts (Inm=1600A provided, but not available for DC) 3 N.O. and 3 N.C. 4 N.O. and 4 N.C. (Inm=3200A and 6300A provided) Operating characteristic: Rated control supply voltage Us(V) AC230 AC400 Operating voltage (V) (0.85~1.1)Us Power consumption (W) 200VA Closing time (50±10)ms DC220 DC110 Technical parameters: 200W Rated voltage (V) Closing electromagnet (Inm=1600A) AC DC 230 400 220 Rated thermal current Ith(A) Rated control capacity 6 300VA 0.5 60W Auxiliary contact (Inm=1600A) Closing electromagnet (Inm=3200A、6300A) Auxiliary contact (Inm=3200A、6300A) 9.4 Power operating mechanism The functions of motor energy storage and automatic energy re-storage after the breaker comes on are available to ensure that the breaker can come on immediately after it gets disconnected. The breaker also allows manual energy pre-storage. Rated operational voltage Ue(V) AC230 AC400 Operating voltage (V) (0.85~1.1)Ue DC220 DC110 Reliable switching voltage (V) 75/150VA Energy storage time <4s Frequency of operation At most 3 times in a minute 75/150W 9.6 Separator between phases The separator is installed between the phases of the line bank to improve the insulating ability between the phases of the breaker. Power operating mechanism (Inm=1600A) > >> C-30 C Air Circuit Breaker NA8 9.7 Key lock The OFF pushbutton of the breaker can be locked in the position of depress, and at this time, the breaker cannot be closed for operation; after the user selects the option, the factory provides locks and keys; one breaker is provided with one independent lock and one key for the one lock; two breakers, two independent locks and one key for the two locks; three breakers, three same locks and two same keys for the three locks. Note: a. For the air circuit breaker with key interlock, when the key has to be pulled out, it is necessary to first press the OFF key, turn the key anticlockwise, and then pull out the key. b. The key for the 1600 does not work for the 3200 and 6300 shell breakers and vice versa, so be on guard against the distinction between them. 9.11 The drawer type of air circuit breaker about any working position locking device After the breaker body is locked automatically in any working position, it is necessary to turn the key to unlock the matter so that the breaker body can be moved to the next working position by turning the handle. (This function available for 3200 to 6300). 9.8 Pushbutton lock It is used to lock the button for opening and closing the breaker with the padlock used for such a purpose. (Padlocks to be provided by users themselves) b. Interlock with the door for the breaker position (only for the 1600 shell) When the breaker is in the position of connection and test, the cabinet door must not be opened; when the breaker is in the separation position, the cabinet door is allowed to be opened. 9.9 Door frame and lining pad They are installed on the door of the distribution cabinet room to seal it with a protection level of up to IP40. 9.10 Drawer type of air circuit breaker “separation” position locking device For the “separation” position of the open frame (draw-out) circuit breaker, a lock rod can be pulled out to lock the matter, and the breaker locked will be unable to be turned towards the TEST or CONNECTION position. Padlocks have to be provided by users themselves. C-31 > >> 9.12 Mechanical interlock a. Steel cable interlock for two breakers placed horizontally can realize the interlock between circuit breakers of similar or different shells. b. Joint rod interlock for two superimposed brewakers. 9.14 Counter The counter counts the number of mechanical operations of the circuit breaker for the user. Air Circuit Breaker NA8 Mechanical interlock 2m(max) Possible operating mode Circuit diagram 1QF 2QF 1QF 2QF 0 0 0 1 1 0 C Note: a. When it is necessary to bend the steel cable, the transition arc at the bend shall be larger than R120mm, in order to ensure the flexible movement of the steel cable. b. Check the steel cable to see if there is sufficient lubricating oil in it, in order to ensure the flexible movement of the steel cable. Mounting dimensions of the interlock with the door for the status of the NA8-1600 air circuit breaker (fixed type) Reset A direction Right side panel of the circuit breaker Small mounting panel Mounting panel A direction Gusset plate 117.6 OFF position R60 This panel is to be designed by users themselves ON position Mounting hole Right mounting panel of the circuit breaker Mounting plane Mounting hole 20.5 59 > >> C-32 Air Circuit Breaker NA8 Mounting panel Small mounting panel Mounting panel Mounting panel OFF position 23° 0′ 0″ Gusset plate R100 26° 0′ 0″ 182 10 ON position 96.21 Mounting hole Right mounting panel of the circuit breaker Mounting hole 13.5 30.7 45 Mounting dimensions of the interlock with the door for the status of the NA8-1600 air circuit breaker (draw-out type) Reset A direction A direction Block breaker drawer right side plate Gusset plate 150 This panel is to be designed by users themselves Mounting panel R60 8.4 Bottom plate of the draw-out socket of the breaker Mounting hole Mounting plane 35 C-33 > >> 14 Air Circuit Breaker NA8 Block breaker drawer right side plate Mounting panel Mounting panel OFF position C 23°0′0″ Gusset plate R100 26° 0′ 0″ 10 ON position 14 18 15.5 96.21 218 185.8 26.21 Bottom plate of the draw-out socket of the breaker Mounting hole Mounting plane 80 10. Installation 10.1 Following items to be checked before installation Check the label plate on the breaker panel to see if it conforms to the specifications of the ordered goods. a. Rated current; b. Under voltage release voltage and delay time; c. Shunt release voltage; d. Closing electromagnet voltage; 3. Motor voltage. 10.2 Before installation, operation, maintenance and inspection, you shall read this manual, and consult the manufacturer for questions, if any. 10.3 Preparations before installation Before the breaker is installed, check the insulation resistance of the breaker by using a 1000V megohmmeter according to regulations; when the surrounding media temperature is 25℃±5℃ and the relative humidity is 50%~70%, the insulation resistance shall not be less than 20 megohm. The place with the insulation resistance to be tested includes: the place between various phases and between various phases and the frame when the breaker is closed; the place between in- and out-lines of various phases when the breaker is switched off. 10.4 Installation of the fixed type breaker Place the breaker into the distribution cabinet, and fasten it by using 4 pieces of M6(Inm=1600A) or M10(Inm=3200A or above) bolts and washers. The breaker shall be installed stably with no additional mechanical stress to avoid damage of the breaker or bad contact of the main bus bar. 10.5 Installation of the open frame (draw-out) circuit breaker Take the breaker body out of the draw-out socket, and install the socket in the distribution cabinet, and fasten it by using 4 pieces of M6(Inm=1600A) or M10 (Inm=3200A or above) bolts and washers; the breaker shall be installed stably with no additional mechanical stress to avoid damage of the breaker or bad contact of the main bus bar and the secondary circuit. After the work is completed, mount the body into the draw-out socket. 10.6 The specifications of the wiring copper bars for the primary circuit of the breaker shall meet the copper bar specifications used under the conditions of conventional heating in GB14048.2. 10.7 The breaker shall be grounded substantially. > >> C-34 Air Circuit Breaker NA8 11. Common faults and troubleshooting Listed below are the problems which users may encounter during installation, adjustment, and operation of the breaker, and the possible reasons and elimination methods. No. Technical problems 1 Breaker tripping (fault indicator on) Possible causes Diagnosis and trouble shooting Overload fault tripping (long time delay indicator on) 1 Check the breaking current and operating time on the intellectual controller; 2 Analyze the operation of the load and power network; 3 Promptly find and shoot the trouble if overload is confirmed; 4 For lack of match between the actual running current and the long time delay operating current, please modify the long-time delay operating current setting for a proper match and protection according to the actual running current; 5 Press the reset button to close the breaker again. Short-circuit fault tripping (short time delay or instantaneous indicator on) 1 Check the breaking current and operating time on the intellectual controller; 2 Promptly find and shoot the trouble if short circuit is confirmed; 3 Check the setting value of the intellectual controller; 4 Check to see whether the breaker is in good condition, and determine whether it can be closed for operation; 5 Press the reset button to close the breaker again. Grounding fault tripping (grounding fault indicator on) Under voltage release tripping Reset button fails to reset Check the working condition of two breakers equipped with mechanical interlock. 1 Whether the under voltage release has been energized; 2 Whether the power voltage is lower than 85%Ue; 3 Whether the under voltage release or control unit malfunctions, if so, the release shall be replaced. Press the reset button to close the breaker again. Open frame (draw-out) circuit breaker fails to be put to the right position by rocking Put the open frame (draw-out) circuit breaker to the right position by rocking (with it locked in the connection position) Open frame (draw-out) circuit breaker bad contact for the secondary circuit Check the contact status of the secondary circuit, and shoot the trouble, if any Breaker fails to pre-store energy 1 Check the motor control power supply and see if it is well providing power, and the voltage must be ≥85%Us; 2 Check the status of the motor energy storage mechanism. Closing electromagnet trouble 1 Check the power voltage of the closing electromagnet, and it must be ≥85%Us; 2 if there is any trouble in the closing electromagnet to enable the attracting, it shall be replaced. Mechanical interlock action Under voltage release no attracting 2 Breaker fails to close 1 Check the breaking current and operating time on the intellectual controller; 2 Promptly find and shoot the trouble if it is confirmed that there is a grounding fault; 3 If no grounding fault is detected, please determine whether the grounding fault current setting is proper, and can be well matched with the actual protection; if not, the setting shall be modified; 4 Press the reset button to close the breaker again. 1 Check to see if the power voltage is lower than 70%Ue; 2 Check the under voltage release and control unit for fault; 3 Breaker trips after closed Tripping immediately Delay tripping 1 There may be short circuit current when the matter is switched on, and in this case you shall find and shoot the trouble; 2 Check to see if there is any overload current in the circuit, find and shoot the trouble, if any; 3 Check to see whether the breaker mechanism is in good condition; 4 Check the setting value of the intellectual controller for reasonability, and a resetting process is necessary if not reasonable; 5 Press the reset button to close the breaker again. 4 Breaker fails to open The breaker fails to open in powerdriven mode The breaker fails to open in manual mode 1 Check the shunt release circuit for reliable connection and the shunt release for trouble, and the release shall be replaced if the fault is confirmed; 2 Check the operating mechanism for mechanical fault. 5 Breaker fails to store energy Energy failed to be stored in powerdriven mode 1 Check the motor energy storage mechanism control power voltage, and the voltage shall be ≥85%Us; check the status of the circuit connection; 2 Check the motor; Can’t achieve manual energy storage Energy storage mechanism malfunction. Rock rod fails to be pulled out; breaker fails to completely reach the SEPARATION position Pull out the rock rod. Put the breaker completely to the SEPARATION position by rocking. 6 Breaker fails to be pulled out when the open frame (draw-out) circuit breaker is in the SEPARATION position 7 Open frame (draw-out) circuit breaker fails to be put to the CONNECTION position by rocking 8 No display on the intellectual controller screen C-35 > >> The “drawer” has seized up for foreign matters fall in it; damage in the mechanism for putting in by rocking or the gear thereof; position locking device fails to be unlocked Intellectual controller fails to be energized by power supply; improper input voltage for the auxiliary power supply; improper secondary output voltage for the transmitter; unreliable connection between the secondary output terminal of the transmitter and the controller; Check it for foreign matters and for condition of the rack and gear. Turn the key on the “drawer” to unlock the matter. 1 Check to see if the intellectual controller power supply is well connected and works well; 2 Cut off the intellectual controller control power supply, and then connect the power supply; If the fault is still present, there may be some troubles in the controller which has to be replaced. Air Circuit Breaker NA8 12. Order specification User Order amount Order date Tel Type and size □ NA8-1600 □ NA8-3200 □ NA8-6300 Rated current (In)A □ 200 □ 400 □ 630 □ 800 □ 1000 □ 1250 □ 1600 □ 1600 □ 2000 □ 2500 □ 3200 □ 4000 □ 5000 □ 6300 Installation mode □ Draw-out type □ Fixed type (no such products for over 4000A) Connection mode □ Horizontal connection □ Vertical connection Number of poles □ 4P □ 3P □ Front connection □ Mixed connection (connection mode to be noted) Factory’s setting values: IR=1In, 2s(6IR); definite-time limit Isd=8IR, 0.4s; inverse-time limit Isd=6IR, tsd=0.2s@6IR, Ii=12In; Ig is off (if it is on, it shall be specially stated, the default value is Ig=0.5×In, the inverse-time limit shearing factor is k=OFF, thetime is T=0.4s). If the user has some requirements different from the defaulting, please write the numerical values on the line below. Setting of the protection parameter Intellectual Selecting the type controller Power input Long-time delay protection IR Operating current setting: Operating time setting (@6IR): Short-circuit short-time delayprotection Isd Operating current setting:□ Definite-time limit □ Inverse-time limit Operating time setting:□ Definite-time limit □ Inverse-time limit:0.1tR Short-circuit instantaneous protection Ii Operating current setting: Ground protection Ig Operating current setting: Operating time setting: Inverse-time limt shearing factor k: □ Standard type □ Multifunctional type □ AC400V □ DC220V □ AC230V □ DC110V In (0.4~1 ON/OFF) s(1,2,4,8,12,16,20,24,30) C IR (1.5~10，OFF)； IR (1.5~10，OFF)； s (0.1,0.2,0.3,0.4,0.5,0.6,0.7,0.8,0.9,1.0); In (1~15,OFF) IR s (0.1,0.2,0.3,0.4,0.5,0.6,0.7,0.8,0.9,1.0); (1.5~6,OFF) □ DC24V Basic function Three-section protection against over current Test function Neutral line or grounding fault protection Fault inquiry/memory function Current measurement Self-diagnostic function Optional function (this function to be added as required by the user, and to be matched with the controller type) □ Over voltage protection □ Under voltage protection □ Over frequency protection □ Under frequency protection □ Voltage unbalance protection □ Phase sequence protection □ Voltage measurement □ Frequency measurement □ Measurement of harmonic current □ Power factor measurement □ Power measurement □ Phase sequence detection □ Voltage unbalance rate measurement □ Electric energy measurement □ Contact equivalent □ Power network history parameter recording function □ Leakage protection □ MCR make/break function □ Load monitoring function □ Signal contact output function □ Communication function □ ZSI regional interlocking protection function Note: When the product is a multifunctional controller as arranged by the user, the communication function and the like are the basic function configuration. Under voltage release □ Instantaneous □ AC400V Accessories Shunt release □ AC400V for standard Closing electromagnet □ AC400V configuration □ Time delay s (1-2-3-4-5-6-7s provided for the 1600 shell, optional but not adjustable; 0.5-1-3-5s for the 3200 shell, optional and adjustable) □ AC230V □ AC230V □ DC220V □ DC110V □ AC230V □ DC220V □ DC110V □ AC400V □ AC230V □ DC220V □ DC110V Energy storage motor □ 4 groups of changeover contacts □ 6 groups of changeover contacts (Inm=1600 not available for DC) Auxiliary contact □ 3 N.O. and 3 N.C. □ 4 N.O. and 4 N.C. (Inm=3200 and 6300 provided) Key lock Optional accessories Mechanical interlock One breaker is provided with one independent lock and one key Two breakers are provided with two independent locks and one key (the same key/lock not available for the 1600 and 3200/6300 shell breakers) Two breakers are provided with three independent locks and two keys (the same key/lock not available for the 1600 and 3200/6300 shell breakers) Two-breaker interlock solution □ Button locking device □ Counter □ Steel cable interlock (can realize the interlock between circuit breakers of similar or different shells) □ Joint rod interlock (can realize the interlock between similar shells) □ SEPARATION position locking device □ Separator between phases □ Door interlock Note: Extra costs are needed for the optional functions, operational accessories and the like for the breaker. NA8-1600 NA8-3200 NA8-6300 > >> C-36 Air Circuit Breaker NA8G 2. Type designation N A 8G - □/□ No. of poles (pole 3 may be omitted) Frame size rated current Improved product code Design sequence number ACB Company code 3. Operation conditions NA8G Air Circuit Breaker 1. General With a rated current from 200A to 6300A, and rated operational voltage 415V, 690V, 50Hz, the NA8G series air circuit breaker (hereinafter referred to as “breaker”) is mainly used in the distribution network to distribute electric energy and protect lines and power equipment from being damaged by overload, under voltage, short circuit, single-phase grounding and other failures. Having art-oriented appearance, high breaking capacity, zero arcover and varities of intellectualized protection functions, that breaker can be used for selective protection with accurate action, no unnecessary power cut, and better power supply reliability. The product allows the wire to enter or enter from the lower port, and the open frame (draw-out) circuit breaker has isolation function. That breaker can be widely used for power stations, factories, mines and modern tall buildings, especially the distribution system in the intelligent building, and also widely used in green projects such as wind and solar power generation. This product meets the requirements in IEC/EN 60947-2 C-37 > >> 3.1 When the ambient air temperature is -5℃ - +40℃, the mean value is no greater than +35℃ within 24 hours. Note: If the upper limit is higher than +40℃ or lower limit lower than -5℃ in work, discussions shall be made between the user and the manufacturer. 3.2 Altitude: not higher than 2000m for the installation site. 3.3 When the ambient air temperature is +40℃, the relative humidity of the air shall not be higher than 50%; a higher relative humidity is allowed at a lower temperature; for example, for the wettest month, the maximum relative humidity averaged shall be 90% while the lowest temperature averaged in that month +20℃, and special measures shall be taken for the condensation occasionally produced due to temperature change. 3.4 Class of pollution: 3 3.5 The installation category of the breaker’ main circuit is IV; when the rated operational voltage of the main circuit is less than or equal to AC400V, The installation category of the control circuit and auxiliary circuit is Ⅲ, apart from the similarity between the under voltage release coil and the intellectual controller’s power transformer primary coil and the breaker; When the rated operational voltage of the major loop is greater than AC400V and less than or equal to AC690V, it is necessary for the control circuit and auxiliary circuit to be isolated from the major loop, and the highest operational voltage of the control circuit and auxiliary circuit is AC400V, the installation category of the control circuit and auxiliary circuit being Ⅲ. Air Circuit Breaker NA8G 4. Product structure Body structure Wiring terminals of the secondary circuit Shunt release Closing electromagnet Under voltage release OFF pushbutton Energy storage handle C ON/OFF indication ON pushbutton Energy storage motor Intellectual controller Energy storage indication Wiring terminals of the secondary circuit Operating mechanism Zero arcover hood Fault-breaking indicator reset button Energy storage handle Breaking button Breaking/Making indicator Making button Energy storage & release indicator Intelligent controller Data plate > >> C-38 Air Circuit Breaker NA8G Breaker off and energy storage over Depress Depress Energy storage Breaker off and no energy storage Depress Breaker off and energy storage over Depress Depress Energy storage Breaker off and no energy storage Depress Depress Energy storage Depress Energy storage Drawout structure Wiring terminals of the secondary circuit Side panel Safety separator Baffle push rod Guide rail Rocking handle work hole Extraction draw plate Rocking handle deposit hole Position indication C-39 > >> Locking device Air Circuit Breaker NA8G Connected Connected Test Test Disconnected Disconnected Connected: both main circuit and secondary circuit are connected Test: the main circuit is disconnected, the safety separator works well, and the secondary circuit is connected. C Connected Test Disconnected Disconnected: neither main circuit nor secondary circuit is connected (1)Draw-out socket placed horizontally (2)Pull out the guide rail (3)Place the breaker body on the guide rail (4)Move the breaker body onto the guide rail with a snap (5)Push the breaker body in, and turn the break body to the working position > >> C-40 Air Circuit Breaker NA8G 5. Main technical parameters 5.1 Main technical parameters 1600 3200 200,400,630,800, 1600,2000,2500, 1000,1250,1600 2900,3200 Nominal insulation voltage Ui V 690 1000 1000 Rated operational voltage Ue V 415 690 415 690 415 Rated ultimate short circuit breaking capacity Icu kA 50 25 100 65 120 Rated service short circuit breaking capacity Ics kA 40 20 80 65 100 Rated short time withstand current Icw,1s kA 40 20 80 65 100 Frequency of operation (number of times/h) 20 10 10 Mechanical life 3000 3000 2000 Electrical Life 1000 1000 500 0 0 0 Wire to enter from the Wire to enter from the Wire to enter from the upper or lower port upper or lower port upper or lower port fixed type kg 22/26.5 52.5/66.5 - draw-out type kg 38/55 98/121 210/233 Size(3 poles/4 poles) fixed type 320×(254/324)×258 406×(422/537)×329 - Height × width × depth draw-out type 351×(282/352)×352 439×(435/550)×445 439×(835/928)×501 Shell grade rated current Inm A Rated current In A Number of operations Flashover distance mm Line incoming pattern Weight (3 poles/4 poles) 6300 4000,5000,6300 6300 233 439×928×501 5.2 Capacity-reducing usage 5.2.1 Capacity-reducing at different temperatures The following table shows the continual current-loading capacity of the circuit breakers and buses in each wiring mode at the corresponding ambient environment temperatures and under the conditions of the satisfaction of conventional heating with a similarity in capacity reducing between the breaker connected in a mixed way and the breaker connected horizontally. Style wiring mode ambient temperature℃ 1600 3200 6300 C-41 > >> Draw-out type Rear vertical wiring mode Front/rear horizontal wiring mode -5~40 45 50 55 60 -5~40 45 50 55 60 200 200 200 200 200 200 200 200 200 200 400 400 400 400 400 400 400 400 400 400 630 630 630 630 550 630 630 630 630 580 800 800 800 800 700 800 800 800 800 700 1000 1000 1000 950 900 1000 1000 1000 950 900 1250 1250 1250 1150 1050 1250 1250 1250 1200 1100 1600 1550 1500 1450 1350 1600 1600 1550 1500 1450 1600 1600 1600 1600 1600 1600 1600 1600 1600 1600 2000 2000 2000 2000 1900 2000 2000 2000 2000 1950 2500 2500 2500 2450 2350 2500 2500 2500 2500 2400 2900 2900 2900 2800 2700 2900 2900 2900 2900 2800 3200 3200 3100 3000 2900 3200 3200 3200 3050 2900 4000 4000 4000 3900 3800 4000 4000 4000 3900 3800 5000 5000 4700 4600 4400 5000 5000 4800 4650 4500 6300 6100 6000 5500 5200 6300 6100 6000 5500 5200 Air Circuit Breaker NA8G 5.2.2 Capacity-reducing at different altitudes When the altitude is higher than 2000m, there will appear changes in insulation property, cooling performance, pressure, and the performance can be modified in reference to the following table. Altitude(m) 2000 3000 4000 5000 Insulation withstand voltage(V) 3500 3000 2500 2000 Insulation voltage(V) 1000 800 700 600 Rated operational voltage(V) 690 580 500 400 Rated operational current(A) 1×In 0.96×In 0.92×In 0.87×In 5.3 Power loss Power loss is the loss at each pole which is measured when the breaker is charged with the rated current. Power loss Breaker type NA8G-1600 NA8G-3200 Rated current Draw-out type Fixed type 200 115 45 400 140 80 630 161 100 800 215 110 1000 230 120 1250 250 130 1600 460 220 1600 390 170 2000 470 250 2500 600 260 2900 600 260 3200 670 420 550 4000 NA8G-6300 C - 5000 590 - 6300 950 - Note: The data and parameters in the above technical documentation results from tests and theoretical calculation, and can only be used as a general type selection guide.They cannot replace industrial practical experience or proof test. 5.4 Recommended bus for the breaker and recommendation for users to install the buses Inm(A) NA8G-1600 In(A) 200 400 630 800 1000 1250 1600 1600 2000 2500 2900 3200 4000 5000 6300 Thickness(mm) 5 5 5 5 5 8 10 6 6 5 10 10 10 10 10 Width(mm) 20 50 40 50 60 60 60 100 100 100 100 100 100 100 100 1 2 2 2 2 2 2 3 4 3 4 5 7 8 Busbar Number of buses 1 NA8G-3200 NA8G-6300 > >> C-42 Air Circuit Breaker NA8G 6. Dimensions and connection NA8G-1600 (In=200A ~1250A) Draw-out type (horizontal connection is the default by the factory, vertical one to be made by users themselves). 36 149 275 a 310 210 78.5 351 7 95 76 345(Connecting position) 391(Separating position) Wires connected horizontally 282(3P) Separator between phases (to be ordered separately) 352(4P) 149(3P) 155(4P) 95 2-φ6.5 145(3P) 7 78.5(3P) 75.5(4P) 35 2-φ6.5×10 63 95 215(4P) 391(Separating position) 4P Central line 3P Central line Wires connected vertically 35 25 15 60 12×φ11(3P) 16×φ11(4P) N Pole 76 76 345(Connecting position) 76 76 Drawing illustrating the distance between mounting holes In(A) a(mm) 200, 400, 630 5 800, 1000 10 1250 15 Note: If users intend to change the horizontal connection into vertical one on site, they need to replace the upper and lower buses on both sides with the same one as the central bus. NA8G-1600 (In=1600A) Draw-out type (horizontal connection is the default by the factory, vertical one to be made by users themselves). 36 Separator between phases (to be ordered separately) 275 179 63.5 351 7 310 15 210 95 76 435(Connecting position) 481(Separating position) 282(3P) 352(4P) Wires connected horizontally Separator between phases (to be ordered separately) 95 2-φ6.5 4P Central line 3P Central line 85 7 95 80.5 435(Connecting position) 481(Separating position) Wires connected vertically 101 101 101 Drawing illustrating the distance between mounting holes C-43 > >> 76 15 35 35 N pole 24×φ11(3P) 32×φ11(4P) 63 78.5(3P) 75.5(4P) 145(3P) 215(4P) 149(3P) 155(4P) 35 2-φ6.5×10 Note: If users intend to change the horizontal connection into vertical one on site, they need to replace the upper and lower buses on both sides with the same one as the central bus. Air Circuit Breaker NA8G NA8G-1600 (200A~1250A) Fixed type (horizontal connection is the default by the factory, vertical one to be made by users themselves). 22 210 Separator between phases (to be ordered separately) 149 281 7 48.5 275 320 a 92 100 251 237(3P) 307(4P) 254(3P) 324(4P) C Wires connected horizontally 149(3P) 155(4P) 100 Separator between phases (to be ordered separately) 4-φ7 237(3P) 7 48.5(3P) 45.5(4P) 307(4P) 92 100 4P Central line 251 3P Central line Wires connected vertically Note: If users intend to change the horizontal connection into vertical one on site, they need to replace the upper and lower buses on both sides with the same one as the central bus. 35 60 25 15 12×φ11(3P) 16×φ11(4P) N Pole 76 76 76 Drawing illustrating the distance between mounting holes In(A) a(mm) 200, 400, 630 5 800, 1000 10 1250 15 NA8G-1600 (In=1600A) Fixed type (horizontal connection is the default by the factory, vertical one to be made by users themselves). 22 210 155(4P) 149(3P) 48.5(3P) 7 45.5(4P) 275 281 320 Separator between phases (to be ordered separately) Wires connected vertically 4-φ7 Separator between phases (to be ordered separately) 179 15 80.5 35 15 4P Central line 3P Central line 85 35 24-φ11(3P) 32-φ11(4P) 7 33.5 100 341 237(3P) 307(4P) N Pole 92 100 237(3P) 307(4P) 254(3P) 324(4P) 100 92 341 101 101 101 Drawing illustrating the distance between mounting holes Wires connected horizontally Note: If users intend to change the horizontal connection into vertical one on site, they need to replace the upper and lower buses on both sides with the same one as the central bus. > >> C-44 Air Circuit Breaker NA8G NA8G-1600 Draw-out type Size of the hole to be drilled on the panel NA8G-1600 Fixed type Size of the hole to be drilled on the panel 220 220 8-φ5 285 322 320 Breaker mounting panel Breaker mounting panel 6 118 120 118 10-φ5 118.5 78 From the center of the mounting hole on the right side of the breaker From the center of the mounting hole on the right side of the breaker 258 258 NA8G-3200 Draw-out type size of the hole to be drilled on the panel 217.5 217.5(3P) 332.5(4P) 386 385 7 199 Datum line 2 240 52 Datum line 1 371 21.5 162.5 Datum line 47 97 10 162.5(3P) 277.5(4P) Datum line 2 18 φ14 145 φ1 4 7 11×1 376 175 φ11 11×17 268 155 328 10×φ6 Datum line 1 Size of the hole to be drilled on the panel C-45 > >> Air Circuit Breaker NA8G NA8G-3200(In=1600A~2500A) Draw-out type (horizontal connection is the default by the factory). 7 52 φ11 50 29 14 25 78 133 C 115 115 115 84 Datum line 445(Connecting position) 492(Separating position) Note: If users want to change the horizontal connection into vertical one on site, they only have to turn the bus by 90° NA8G-3200(In=1600A~2500A) Draw-out type (vertical connection to be made by users themselves). 7 42 25 14 55 78 φ11 115 115 115 25 Datum line 57.5 445(Connecting position) 492(Separating position) Note: If users want to change the vertical connection into horizontal one on site, they only have to turn the bus by 90° NA8G-3200 Draw-out type; Front connection 86 25 12-φ13 29 15 C 115 115 16.5 301 29 115 Datum line In(A) C 1600, 2000, 2500 20 2900, 3200 30 > >> C-46 Air Circuit Breaker NA8G NA8G-3200(In=2900, 3200A) Draw-out type (horizontal connection is the default by the factory) 7 100 25 133 14 φ11 29 25 52 126 126 126 84 Datum line 445(Connecting position) 492(Separating position) NA8G-3200(In=2900、 3200A) Draw-out type (vertical connection to be made by users themselves) 7 42 14 φ11 57 100 25 115 115 115 35.5 25 Datum line 445(Connecting position) 492(Separating position) Note: If users want to change the horizontal connection into vertical one on site, it is necessary to replace the upper and lower buses for the N and B phases with the same one as the A and C phases. NA8G-3200 Fixed type 163 13 Datum line 2 402 N 11 C-47 200(3P) 315(4P) > >> 200 Datum line 1 11 246 44 7 Air Circuit Breaker NA8G NA8G-3200 Fixed type, size of the hole to be drilled on the panel 4×φ 12 371 72.5 311 268 150 328 200(3P) 200 C 8×φ6 315(4P) Datum line Datum line NA8G-3200 Fixed type (horizontal connection is the default by the factory) Ferrous materia l 86 12-φ13 50 112 18.5 a 32 115 In(A) a(mm) 115 1600~2500 20 Datum line 2900~3200 30 55 115 Note: If users want to change the horizontal connection into vertical one on site, they only have to additionally install a vertical bus. NA8G-3200 Fixed type (vertical connection to be made by users themselves) Ferrous materia l 32 29 a 14 57 100 φ11 55 25 115 115 115 Datum line In(A) a(mm) 1600~2500 20 2900~3200 30 45 Note: If users want to change the horizontal connection into vertical one on site, they only have to additionally install a vertical bus. > >> C-48 Air Circuit Breaker NA8G NA8G-6300 In=(4000A~5000A) Draw-out type size of the hole to be drilled on the panel 710.5(4P) 617.5(3P) 391 199 Datum line 2 232 217.5 7 Datum line 1 371 328 18 Datum line 2 268 155 376 145 11×17 97 175 φ14 818(4P) 47 21.5 162.5 703(3P) 10×φ6 Datum line 1 Datum line 1 Size of the hole to be drilled on the panel NA8G-6300 In=(6300A) Draw-out type size of the hole to be drilled on the panel 217.5 391 7 199 Datum line 2 240 710.5 Datum line 1 371 328 18 Datum line 2 268 155 376 145 11×17 97 175 φ14 47 Datum line 1 10×φ6 21.5 162.5 818 Datum line 1 Size of the hole to be drilled on the panel C-49 > >> Air Circuit Breaker NA8G NA8G-6300(In=4000A~5000A) Draw-out type (vertical connection to be made by users themselves) 29 N pole 115 103 φ11 129.5 105 142 105 142 105 125 57 25 30 10.5 14 C Note: If users want to change the horizontal connection into vertical one on site, they only have to additionally install a vertical bus. NA8G-6300(In=4000A~5000A) Draw-out type (horizontal connection is the default by the factory) N pole 155 28-Φ13 210 40 112 30 103 20 100 55 92 182 247 247 170.5 Note: If users want to change the horizontal connection into vertical one on site, they only have to additionally install a vertical bus. NA8G-6300(In=6300A) Draw-out type (vertical connection to be made by users themselves) 14 115 103 φ11 130 207 130 207 130 125 57 25 30 10.5 29 Note: If users want to change the horizontal connection into vertical one on site, they only have to additionally install a vertical bus. NA8G-6300(In=63000A) Draw-out type horizontal connection is the default by the factory 112 30 20 260 40 103 180 24-Φ13 80 320 140 92 320 Note: If users want to change the horizontal connection into vertical one on site, they only have to additionally install a vertical bus. > >> C-50 Air Circuit Breaker NA8G 7. Secondary circuit wiring Connection diagram for the secondary circuit of the NA8G-1600 optional standard type intellectual controller Fault indication N A B C HL1 XT 3 4 6 SB2 8 14 12 16 18 20 22 24 26 28 30 32 F DT Q/QY HL4 HL3 HL2 SB1 34 36 38 39 41 42 44 45 47 48 50 51 54 53 55 FU Breaker body QF Intellectual controller SAL L1 M DF1 DF2 DF3 DF4 DF5 DF6 DF7 DF8 DF9 DF10 DF11 DF12 Control power supply SA TA XT 1 2 5 7 9 10 11 13 15 17 19 21 23 25 27 29 31 33 L2(N) 35 37 40 43 46 49 52 56 FU +DC24V - S Intellectual controller Main circuit DT——closing electromagnet SA——travel switch SB1~SB2——pushbutton QF——breaker # # Energy Open Close Under storage voltage indication F——shunt release M——energy storage motor HL1~HL4——indicator light S——power module Power -driven ON OFF energy indication indication storage Auxiliary contact available for users Q/QY—under voltage release DF1 - DF12—auxiliary contact XT—connection terminal # 1 and 2: input (terminals) for intellectual controller auxiliary power supply # # # 4, 5 and 6: faulty tripping contact output ( 5 is the common terminal, AC250V 5A) Notes: 1. Four open (contacts) and four close from DF1 to DF8 with a common point available conventionally, two open and two close from DF9 to DF12 with a common point available additionally for Inm = 1600 when special order is made for alternating current, four open and four close from DF1 to DF8 with a common point available only for Inm = 1600 in case of direct current, contact capacity (DC220V 0.5A). 2. Various control voltages of the 1600 has to be put # # to 1 and 2 after the power module inputs DC24V. 3. The wiring for the part indicated by dashed lines shall be made by users. C-51 > >> AC auxiliary contact for standby application SAL—sensitive switch FU—fuse TA—current transformer Air Circuit Breaker NA8G Connection diagram for the secondary circuit of the NA8G-3200 to 6300 optional standard type intellectual controller Fault indication N A B C HL1 XT 4 3 6 SB2 8 14 12 16 18 20 22 24 26 28 30 32 HL4 HL3 HL2 SB1 34 36 38 39 41 42 44 45 47 48 50 51 53 54 55 FU C Breaker body QF F Intellectual controller SAL DT L1 M Q/QY DF1 DF2 DF3 DF4 DF5 DF6 DF7 DF8 DF9 DF10 DF11 DF12 Control power supply SA TA XT 1 2 5 7 9 10 11 13 15 17 19 21 23 25 27 29 31 33 L2(N) 35 40 37 43 46 49 52 56 FU 3200 and 6300 shell controller power supply: AC230V and AC400V +DC24V - S 3200, 6300 shell controller power supply: DC220V,DC110V; 1600 shell controller power supply Power Main circuit Intellectual controller Open Close Under Energy -driven ON OFF storage voltage indication energy indication indication Auxiliary contact available for users AC auxiliary contact for standby application storage DT——closing electromagnet SA——travel switch SB1~SB2——pushbutton QF——breaker # # F——shunt release M——energy storage motor HL1~HL4——indicator light S——power module Q/QY—under voltage release DF1 - DF12—auxiliary contact XT—connection terminal SAL—sensitive switch FU—fuse TA—current transformer # 1 and 2: input (terminals) for intellectual controller auxiliary power supply # # # 4, 5 and 6: faulty tripping contact output ( 5 is the common terminal, AC250V 5A) Notes: 1. Four open (contacts) and four close from DF1 to DF8 with a common point available conventionally, one open and one close from DF9 to DF10 with a common point available additionally, contact capacity (DC220V 0.5A) 2. When the controller voltage of the 3200 and 6300 shells is AC230V/400V, it can be directly put to #1 and #2; if the voltage # # is DC220V/110V, it has to be put to 1 and 2 after the power module inputs DC24V. 3. The wiring of the part indicated by dashed lines shall be made by users. > >> C-52 Air Circuit Breaker NA8G Connection diagram for the secondary circuit of the NA8G-1600 optional type multifunctional controller FU L1 N PE Profibus-DP L N - + PE ST-4 power module - + - + - + ST-DP Device N A B C 12 13 Fault indication 1 + 2 14 15 3 4 + 5 16 17 6 7 8 COM D11 D12 D13 DC24V HL1 18 19 ST201 D01 D02 D03 12 13 14 15 16 17 SB1 SB2 HL2 HL4 HL3 Green Red XT 4 3 6 10 8 12 14 16 18 20 22 24 26 28 30 32 F DT Q/QY 34 36 38 39 41 42 44 45 47 48 50 51 53 54 55 PE QF D14 D13 SAL Intellectual controller D15 M D16 DF1 DF2 DF3 DF4 DF5 DF6 DF7 DF8 DF9 DF10 DF11 DF12 SA TA Breaker body XT 1 2 5 7 9 11 13 15 17 19 21 23 25 27 29 31 33 35 37 40 43 46 49 52 56 +DC24VS Power Main circuit Intellectual controller Open Close Under voltage Energy -driven storage energy indication ON indication OFF Auxiliary contact available for users AC auxiliary contact for standby application indication storage DT——closing electromagnet SA——travel switch SB1~SB2——pushbutton QF——breaker ST-4——power module (optional) # F——shunt release M——energy storage motor HL1~HL4——indicator light S——power module Q/QY—under voltage release DF1 - DF12—auxiliary contact XT—connection terminal ST-DP —communication module SAL—sensitive switch FU—fuse TA—current transformer ST201—relay module (optional) # 1 and 2: input (terminals) for intellectual controller auxiliary power supply 3：PE # 4, #5 and #6: faulty tripping contact output ( #5 is the common terminal, AC250V 5A) # 7, #8 and #9: auxiliary contact output ( #8 is the common terminal, AC250V 5A) # 10, #11 and #12: auxiliary contact output ( #11 is the common terminal, AC250V 5A) # 14 and #15：RS485 communication interfaces (in case of communication type) # 16, #17, #18, #19, #26 and #27: programmable input/output points (DC110V 0.5A, AC250V，5A) # 20, #21, #22, and #23: A, B, C, and N voltage signal output (in case of multifunction type) (maximum voltage AC400V) # 24 and #25: to be externally connected to the mutual inductor input # Notes: 1. Four open (contacts) and four close from DF1 to DF8 with a common point available conventionally, two open and two close from DF9 to DF12 with a common point available additionally for Inm = 1600 when special order is made for alternating current. Four open (contacts) and four close from DF1 to DF8 with a common point available only for Inm = 1600 in case of direct current, contact capacity (AC250V 5A). 2. The wiring of the part indicated by dashed lines to be made by users. C-53 > >> Air Circuit Breaker NA8G Connection diagram for the secondary circuit of the NA8G-3200 and 6300 optional type multifunctional intellectual controller FU L1 N PE Profibus-DP L N - + PE ST-4 power module - + - + - + ST-DP Device N A B C 12 13 Fault indication 1 + 2 14 15 3 4 + 5 16 17 6 7 Green XT 4 3 6 10 8 12 C 8 COM D11 D12 D13 DC24V HL1 18 19 ST201 D01 D02 D03 12 13 14 15 16 17 SB2 SB1 HL2 HL4 HL3 Red 14 16 18 20 22 24 26 28 30 32 F DT Q/QY 34 36 38 39 41 42 44 45 47 48 50 51 53 54 55 PE QF D14 D13 SAL Intellectual controller D15 M D16 DF1 DF2 DF3 DF4 DF5 DF6 DF7 DF8 DF9 DF10 DF11 DF12 SA TA Breaker body XT 1 2 5 7 9 11 13 15 17 19 21 23 25 27 29 31 33 35 37 43 40 46 49 52 56 3200 and 6300 shell controller power supply: AC230V and AC400V + DC24V - S 3200, 6300 shell controller power supply: DC220V,DC110V; 1600 shell controller power supply Power Main circuit Intellectual controller Open Close Under voltage Energy -driven storage energy indication ON indication OFF indication Auxiliary contact available for users AC auxiliary contact for standby application storage DT——closing electromagnet SA——travel switch SB1~SB2——pushbutton QF——breaker ST-4——power module (optional) # F——shunt release M——energy storage motor HL1~HL4——indicator light S——power module Q/QY—under voltage release DF1 - DF12—auxiliary contact XT—connection terminal ST-DP —communication module SAL—sensitive switch FU—fuse TA—current transformer ST201—relay module (optional) # 1 and 2: input (terminals) for intellectual controller auxiliary power supply 3：PE # 4, #5 and #6: faulty tripping contact output ( #5 is the common terminal, AC250V 5A) # 7, #8 and #9: auxiliary contact output ( #8 is the common terminal, AC250V 5A) # 10, #11 and #12: auxiliary contact output ( #11 is the common terminal, AC250V 5A) # # 14 and 15：RS485 communication interfaces (in case of communication type) # # 16, 17, #18, #19, #26 and #27: programmable input/output points (DC110V 0.5A, AC250V，5A) # 20, #21, #22, and #23: A, B, C, and N voltage signal output (in case of multifunction type) (maximum voltage AC400V) # 24 and #25: to be externally connected to the mutual inductor input # Notes: 1. Four open (contacts) and four close from DF1 to DF8 with a common point available conventionally, one open and one close from DF9 to DF10 with a common point available additionally when special order is made for alternating current. Contact capacity AC250V 5A # # 2. When the controller voltage of the 3200 and 6300 shells is AC230V/400V, it can be directly put to 1 and 2; # # if the voltage is DC220V/110V, it has to be put to 1 and 2 after the power module inputs DC24V. 3. The wiring of the part indicated by the dashed lines shall be made by users. > >> C-54 Air Circuit Breaker NA8G 8. Intelligent controller and protective characteristics 8.1 User interface of the standard type controller 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 1 2 LED window “ Ig ” limp LCD window capable of showing the current for each phase, various setting parameters, rated current, fault current, tripping time, and the like Asymmetric grounding, neutral line fault indication Over current long time delay fault indication 3 “ IR ” limp 4 “ Isd ” limp 5 “ Ii ” limp Short-circuit instantaneous fault indication Successively access to submenus at various levels by pressing the MENU key 6 “ MENU ” Pushbutton To inquire the current for each phase at present: recurrently select the contents in the menus at various levels 7 8 “ “ Pushbutton “ RESET ” Pushbutton Short-circuit short-time delay fault indication Return to previous menu; the intellectual controller software is reset; RESET key must be pressed after the encoder switch position is adjusted; the intellectual controller faulty tripping results in fault memory which can be cleared only by pressing the RESET key; There are (0.4, 0.5, 0.6, 0.7, 0.8, 0.9, 0.95, 0.98, 1.0)In, nine settings altogether, for the over current long time delay current multiple setting C-55 9 “ IR ” Knob switch 10 “ tR ” Knob switch 11 “ Isd ” Knob switch 12 “ tsd ” Knob switch 13 “ Ig ” Knob switch There are (A, B, C, D, E, F G, H, J), nine settings altogether, for the asymmetric grounding (neutral line) current multiple setting For the typical numerical values thereof, see the characteristic parameter table 14 “ test ” Pushbutto n Button for simulating instantaneous tripping test 15 “ tg ” Knob switch For the asymmetric grounding (neutral line) time setting, there are nine settings: the inverse time limit, i.e., I2t on(0.1, 0.2, 0.3, 0.4)s, and the definite-time limit, i.e., I2t OFF(0.1 0.2 0.3 0.4)s, and X, i.e., closing the asymmetric grounding (neutral line) 16 “ Ii ” Knob switch Short-circuit instantaneous current multiple setting. > >> There are (1, 2, 4, 8, 12, 16, 20, 24, 30)s, nine settings altogether, for the over current long time delay time setting in case of 6Ir There are (1.5, 2, 2.5, 3, 4, 5, 6, 8, 10)Ir, nine settings altogether, for the short-circuit short-time delay current multiple setting For the short-circuit short-time delay time setting, there are nine settings: the inverse time limit, i.e., I2t on(0.1, 0.2, 0.3, 0.4)s, the definite-time limit, i.e., I2t OFF (0.1 0.2 0.3 0.4)s and X, i.e., closing the short-time delay Air Circuit Breaker NA8G 8.2 Default interface and menu structure for the standard type controller The default interface for the standard type controller is described as follows (the current for each phase to be selected by pressing “ ”) Operation method: Press MENU to go to the primary menu, then press “ ” selection menu, and than press MENU Go to the secondary menu, press “ ” selection menu or modify the parameter, press RESET to return to the previous menu Default interface for the standard type controller 158A 150 N A B C 100 50 0 Primary menu Secondary menu C Third menu Ia= 1000A Ib= 1001A Instantaneous value Ic= 998A In= 0A Ig= 0A Ia= 1300A Magnitude of current Ib= 1400A Maximum Ic= 1380A In= 200A Simultaneously press MENU and “ ” to reset Ig= 0A Current thermal capacitance 0% Long time delay setting current Ir=1600A and long time delay setting time tr=Is@6Ir Short time delay setting current Isd=9600A short time delay setting time tsd=0.4s Instantaneous setting current Ii=16000A Grounding setting current Protection parameter Ig=1600A grounding setting time tg=OFF Instantaneous 10min 20min Long time delay thermal capacitance 30min cooling time = instantaneous 45min 1h 2h 3h Long time delay protection = open Open Close For example: Long time-lag tripping Ib=2894A Fault recording For example, long time-lag tripping actuation time 12.06s Note: Up to 8 times of failures can be recorded Ir=1600A the event having taken place, the time being 0:21 on the date of 0 Self-diagnostic alarm Alarm free Contrast adjustment 45 (default) note: adjustable range from 35 to 60 Notes: a. The actual menu will very depend on the function selected by a user. b. The controller starts screensaver automatically 10min after it is energized. > >> C-56 Air Circuit Breaker NA8G 8.3 User interface of the multifunctional controller 1 2 4 5 3 6 8 7 9 10 11 13 1 Brand 2 LED window LCD window capable of showing the current for each phase, various setting parameters, rated current, fault current, tripping time and the like 3 SET key Switch to the set default menu (left arrow key, when it is necessary to move leftwards or rightwards for the set interface). 4 UP key Move the box select menu under the current menu to change the position of said box upwards, and perform the setting of the parameter ADD in the parameter setup menu. 5 RETURN key Exit the current menu and go to the previous menu, or cancel the value of the current setup parameter. 6 ACK key Go to the next menu of the currently selected select box (go to the set state under the set interface, a nd exit the set state by double pressing the key). 7 DOWN key Move the box select menu under the current menu to change the position of said box downwards, and perform the setting of the parameter SUBTRACT in the parameter setup menu. 8 INQUIRY key Switch to the inquiry default menu (right arrow key, when it is necessary to move leftwards or rightwards for the set interface). "CHINT" Brand “ IR “ limp Over current long time delay fault indication 10 “ Isd “ limp Short-circuit short-time delay fault indication 11 “ test ” Button for simulating instantaneous tripping test 12 “ Ii “ limp Short-circuit instantaneous fault indication 13 “ Ig “ limp Asymmetric grounding, neutral line fault indication 9 C-57 12 > >> Air Circuit Breaker NA8G Default interface for the multifunctional controller 8.4 Default interface and menu structure for the multifunctional controller The multifunctional controller provides 4 title menus (measurement menu, parameter setup menu, protection parameter setup menu, and history record and maintenance menu) and 1 default menu. 1002A N A B C 150 100 50 0 C 8.4.1 Structure of the measurement menu Primary menu Secondary menu Third menu Ia Fourth menu Ia= 1000A Ib Ib= 1001A Ic Ic= 998A In In= 0A Fifth menu Ig= 0A or I△n=0.00A Ia= 1300A Ib= 1400A Instantaneous value Maximum Ic= 1380A In= 200A Ig= 0A or I△n=0.00A Reset(+/-) Ia= 3% Magnitude of currentⅠ Unbalance rate Ib= 5% Ic= 1% 100% Current thermal capacitance 15min Real-time value Ia,Ib, Ic,In Required value Ia= 1000A Ib= 1000A Ic= 998A In= 0A Ia= 1050A Ib= 1040A Maximum Ic= 1010A In= 0A Reset(+/-) Uab= 380V Ubc= 380V Instantaneous value Uca= 380V Uan= 220V Ubn= 220V Voltage U Ucn= 220V FrequencyF Mean value Uav= 380V Unbalance rate 0% Phase sequence A,B,C 50Hz EP= 200kWh Total electric energy EQ= 10kvarh ES= 200kVAh Electric energy E Input electric energy Output electric energy Electric energy reset EP= 200kWh EQ= 200kvarh EP= 0kWh EQ= 0kvarh Reset > >> C-58 Air Circuit Breaker NA8G Primary menu Secondary menu Third menu P, Q, S Fourth menu P= 660kW Q= 0kvar S= 660kVA -1.00 Power factor Perceptual PFa= 1.00 PFb= 1.00 PFc= 1.00 Instantaneous value Pa= 220kW Pa, Qa, Sa Qa= 0kvar Sa= 220kVA Pb= 220kW Power P Pb, Qb, Sb Qb= 0kvar Sb= 220kVA Pc= 220kW Pc, Qc, Sc Qc= 0kvar Sc= 220kVA P= 660kW P, Q, S Q= 0kvar S= 660kVA P= 661kW Required value Maximum Q= 2kvar S= 662kVA Reset(+/-) Ia Ia，Ib Ic，In Harmonic H Ib Ic In Waveform Uan Uan，Ubn Ubn Ucn Ucn Ia= 1000A I(A) Ib= 1000A Ic= 1000A In= 1000A Uab= 380V Base form Ubc= 380V U(V) Uca= 380V Uan= 220V Ubn= 220V Ucn= 220V Ia= 0.0% I(%) Ib= 0.0% Ic= 0.0% In= 0.0% Uab= 0.0% THD Ubc= 0.0% U(%) Uca= 0.0% Uan= 0.0% Ubn= 0.0% Ucn= 0.0% Ia= 0.0% thd I(%) Ib= 0.0% Ic= 0.0% In= 0.0% C-59 > >> Fifth menu Air Circuit Breaker NA8G Primary menu Secondary menu Third menu Fourth menu Uab= 0.0% Fifth menu Ubc= 0.0% Uca= 0.0% thd Uan= 0.0% U(%) Ubn= 0.0% Ucn= 0.0% Ia FFT THD=0.0% Ia(3, 5, 7...31) 0.0% 3 5 7 9 11...31) Ib FFT THD=0.0% Ib(3, 5, 7...31) 0.0% C 3 5 7 9 11...31) I(3, 5, 7...31) Ic FFT THD=0.0% Ic(3, 5, 7...31) 0.0% 3 5 7 9 11...31) In FFT THD=0.0% In(3, 5, 7...31) 0.0% 3 5 7 9 11...31) FFT Uab FFT THD=0.0% Uab(3, 5, 7...31) 0.0% 3 5 7 9 11...31) Ubc FFT THD=0.0% Ubc(3, 5, 7...31) 0.0% 3 5 7 9 11...31) U(3, 5, 7...31) Ubc FFT THD=0.0% Ubc(3, 5. 7...31) 0.0% 3 5 7 9 11...31) Uca FFT THD=0.0% Uca(3, 5, 7...31) 0.0% 3 5 7 9 11...31) 8.4.2 Structure of the parameter setup menu Primary menu Secondary menu Setting of the measurement meter System type Third menu =3Φ4W 4CT Line incoming pattern =Wire to enter from the upper port Test tripping Remote locking Test & lock Test type =three section protection Test parameter =I:9999A Test initiation =start Remote locking =unlock Parameter locking Parameter locking Communication setting =locking User password (change) =0000 =0000 =3 Baud rate =9.6K Fifth menu Parameter locking (input) user password Address Function setting Fourth menu =DO1 =regional interlocking =DO1 I/O setting Executive mode =N.O. pulse =360s I/O state I/O state DO1 DO2 DO3 DI1 1 1 1 1 8.4.3 Structure of the protection parameter setup menu Primary menu Current protection Secondary menu Long time delay Third menu Ir e.g.: =1000A=100%In Fourth menu Current protection e.g.: =ON Delay time e.g.: =C1，Is@6Ir Cooling time e.g.: =3h Fifth menu > >> C-60 Air Circuit Breaker NA8G Primary menu Secondary menu Third menu Fourth menu Definite-time limit Operating current Inverse-time limit Delay time Operating current e.g. =10000A=10.0In Short-time delay Instantaneous Neutral phase protection Neutral phase protection Ground protection Current protection Grounding alarm Leakage protection Electric leakage alarm Load Monitoring e.g. =0.4s Coefficient of earthing e.g. =6.0 Starting current e.g. =600A Starting time e.g. =0.1s Return current e.g. =100A Return time e.g. =0.1s Operating current e.g. =8.0A Setup delay time e.g. =0.75s Starting current e.g. =5.0A Starting time e.g. =0.1s Return current e.g. =4.0A Return time e.g. =0.1s e.g. =800A Unloading time 1 e.g. =50%tr Unloading value 2 e.g. =700A Unloading time 2 e.g. =25%tr Over voltage Voltage protection U unbalanced e.g. =200% e.g. =800A Unloading value 1 Under voltage e.g. =C1，0.Is@6Ir Delay time e.g. =I the first method e.g. =0.1s e.g. =2000A=2.0Ir Operating current Executive mode Fifth menu e.g. =5000A=5.0Ir Executive mode e.g. =Alarm Startup value e.g. =200V Starting time e.g. =0.2s Return value e.g. =320V Return time e.g. =60.0s Executive mode e.g. =Alarm Startup value e.g. =480V Starting time e.g. =1s Return value e.g. =400V Return time e.g. =60.0s Executive mode e.g. =Alarm Startup value e.g. =10% Starting time e.g. =1s Return value e.g. =5% Return time e.g. =60.0s 8.4.4 Structure of the history record and maintenance menu Primary menu Secondary menu Third menu e.g. phase sequence alarm, Inverse power alarm, over frequency alarm... Current alarm Number of operations Contact wear Product information Total number of times e.g.: 300 Number of operations e.g.: 219(ACK key, reset) Total wear e.g.: 120 lContact wear e.g.: 20(ACK key, reset) Zhejiang CHINT electrics co., LTD Under voltage tripping T=0.20s Umax=0V e.g.: Tripping record 1 Under voltage tripping 2004/06/17 11:24:59 6/17 F=0.00Hz Uab= 0V Ubc= 0V ...... C-61 > >> Uca= 0V ...... Fourth menu Fifth menu Air Circuit Breaker NA8G Primary menu Tripping record Secondary menu Third menu Fourth menu A phase short-circuit definite-time limit T= 0.4s I= 4300A e.g. 8 (for) short-circuit definite-time limit 2004/05/30 Fifth menu 15:28:25 5/30 Ia= 4300A Ib= 4200A Ic= 4000A In= 150A Di input alarm e.g. Alarm logging Position changing record Di1 1 DI (for) DI input alarm 2004/07/16 2004/07/16 20:38:45 ...... ...... e.ge 8 Under voltage alarm Under voltage alarm 2004/06/20 2004/06/20 Note: Up to 8 times of alarms can be recorded 22:29:40 C Umax= 0V e.g. 1 (for) local switch on local switch on 2002/06/18 9:30:56 ...... e.g. 8 (for) testing tripping 2002/06/15 ...... 2002/06/18 Test tripping 2002/06/15 Note: Up to 8 times can be recorded 10:30:20 Notes: a. The actual menu will very depend on the function selected by the user. b. The controller starts screensaver automatically 10min later. 8.5 List of the controller functions Standard configuration Standard type (M type) Multifunction type (H type) 1.Quadruple over current protection (for overload, short-time delay time, instantaneous, grounding); grounding corresponds to vector sum (T type); 2.Parameter setup: fixed value setting position setting function 3.Current measurement 4.Test function; 5.Fault recording function: 8 times of failures can be recorded; 6.Self-diagnostic function; 7.MCR make/break function; 8.Human-machine interface: 33×22 LCD; 9.Heat capacity measurement 1.Quadruple over current protection (for overload, short-time delay time, instantaneous, grounding); grounding corresponds to vector sum (T type); 2.Parameter setup: fixed value keyboard setting function; 3.Current measurement function; 4.Current unbalance rate measurement function; 5.Two test functions: (1)Instantaneous tripping test simulated on the panel; (2)Triple over current, grounding/leakage and operating time tests simulated by software; 6.Fault recording function: 8 times of failures can be recorded; 7.Self-diagnostic function 8.MCR make/break function 9.Communication function: MODBUS protocol; 10.Alarm logging function; 11.Recording number of operations; 12.Contact wear 13.Position changing record 14.Human-machine interface: 28×43 LCD; 15.Heat capacity measurement > >> C-62 Air Circuit Breaker NA8G Heat capacity measurement Multifunction type (H type) Standard type (M type) None P Function H Function 1.Voltage measurement; 2.Voltage unbalance measurement; 3.Frequency measurement; 4.Phase sequence measurement; 5.Electric energy measurement; 6.Power measurement; 7.Power factor measurement; 8.Earth-current grounding protection; 9.Leakage protection; 10.Load monitoring function; 11.Quadruple D0 output function; 12.DI input function; 13.Regional interlocking function; 14.Under and over voltage protection; 1.Voltage measurement; 2.Voltage unbalance measurement; 3.Frequency measurement; 4.Phase sequence measurement; 5.Electric energy measurement; 6.Power measurement; 7.Power factor measurement; 8.Earth-current grounding protection; 9.Leakage protection; 10.Load monitoring function; 11.Quadruple DO output function; 12.DI input function; 13.Regional interlocking function; 14.Under and over voltage protection; 15.Measurement of harmonic current; 16.Neutral phase protection 8.6 Characteristic parameters of the standard type intelligent controller Over current protection characteristics 10000 5000 IR=(0.4-1)In 1000 500 200 TR=(1~30)s 100 50 20 T(s) 10 I2t ON 5 Isd=（1.5~10）IR 2 Isd=（1.5~10）IR 1 I2t OFF 0.5 0.2 0.1 Ii=（2~15)In 0.05 0.02 0.01 0.2 0.3 0.5 0.6 0.8 1 2 3 4 5 8 10 20 30 40 50 60 80 1.5 2 3 4 5 6 8 10 20 30 X IR Neutral line (grounding) fault protection characteristic 10000 5000 Ig=(0.2-1)In MAX 1200A MIN 120A 1000 500 200 100 50 20 T(s) 10 I2 ON 5 2 1 0.5 0.2 0.1 I2 t OFF 0.05 0.02 0.01 0.05 0.1 0.2 0.3 0.4 0.5 0.6 0.8 1 X In C-63 > >> 2 3 4 5 6 8 10 20 30 Air Circuit Breaker NA8G 8.6.1 Over current long time delay characteristic Rated current range IR (0.4~1)In Error ±10% Line current I ≤1.05IR Operating time tR(s) Time (delay) error No actuation within 2h ＞1.30IR ＜1h and then actuate 1.5IR 16 32 64 128 192 256 320 384 480 2.0 IR 9 18 36 72 108 144 180 216 270 6.0 IR 1 2 4 8 12 16 20 24 30 ±15% Explanation for parameter setting Long-time delay operating current adjustable: IR=(0.4-0.5-0.6-0.7-0.8-0.9-0.95-0.98-1)×In, and there are nine settings for option. IR .7 .8 .9 .95 .6 .98 .5 .4 1 ×In The long-time delay tripping time represents the inverse-time limit characteristic, and nine optional settings are readily available for tripping time in case of 6IR: tR=(1-2-4-8-12-16-20-24-30)s. For setting, insert a small slotted screwdriver to the knob groove as shown in the right drawing, gently turn it to make the arrow of the knob point at the current and time set as required. As shown in the figure, the over current long time delay protection current setting value IR=0.6In，and the delay tripping time is 2s (in the condition of 6IR). tR (s) 4 2 8 12 16 20 24 1 30 a 6IR C Example 1: If it is known that in condition of I=6IR, the tripping time setting value is 2s, and now the line current I=1.5IR, then the actual tripping time TR can be worked out by: (1.5IR)2×TR=(6IR)2×2. The answer is obtained as TR=32s. 8.6.2 Short-circuit short-time delay inverse-time or definite-time limit protection Rated current range Isd Error Line current I Operating time tsd(s) ＜0.85Isd No actuation ＞ 1.15Isd Time-delay action 2 (1.5~10)IR I t OFF ±15% +OFF(Power off) I 2t ON I＞10IR I 2t ON I≤10IR Time (delay) error 0.1 0.2 0.3 0.4 ±15% 0.1 0.2 0.3 0.4 2 2 anti-time-limit delay:I Tsd=(10IR) tsd Explanation for parameter setting The short-circuit short-time delay protection operating current adjustable: Isd=(1.5-2-2.5-3-4-5-6-8-10)×IR, and there are nine settings for option. There are nine settings for the short-time delay tripping time, wherein 4 settings represent the definite-time limit characteristic (i.e., I2t OFF), 4 settings the inverse-time limit characteristic, and 1 setting the function of closing the short-time delay (X). When the tripping time is set as definite-time limit operating characteristic (i.e., the arrow points at the off area), the tripping time can be selected as tsd=0.1s-0.2s-0.3s-0.4s-x (i.e., the function of closing the short-time delay). When the tripping time is set as inverse-time limit operating characteristic (i.e., I2t ON), there are two cases: ① the case of I＞1.15Isd and I＞10IR represents the definite-time limit; ② the case of I＞1.15Isd and I≤10IR represents the inverse-time limit characteristic and the actual tripping time is calculated according to the formula I2Tsd=(10IR)2tsd, wherein I is the line current, Tsd the actual tripping time, and tsd the setting tripping time. The method for setting the current and time for the short-circuit short-time delay protection is similar to that for over current long time delay protection. As shown in the figure, the current for the short-circuit short-time delay protection is 3IR, and the tripping time is set as tsd=0.2s in the setting position of inverse time limit (I2t ON). Isd 3 4 5 2.5 2 1.5 ×IR 6 8 10 tsd (s) .4 .4 .3 .3 .2 .1 .2 X .1 ON OFF 2 It Example 2: If it is known that the short-time delay setting current is Isd=3IR, then the tripping time is set as tsd=0.2s in the setting position of inverse time limit (I2t ON). Now the current is 7IR in the line current, then the short-time delay tripping time can be worked out by calculation: 1.5Isd=1.15×3IR=3.45IR Then I=7IR＞1.15Isd And because I=7IR＜10IR So according to I2×Tsd=(10I)2tsd (7IR)2×Tsd=(10IR)2×0.2 Tsd=0.41s > >> C-64 Air Circuit Breaker NA8G 8.6.3 Short-circuit instantaneous protection Rated current range Ii Error (2~15)In ±15% +OFF(Power off) Line current I Operating Characteristics ≤0.85Ii no-action ＞1.15Ii action Explanation for parameter setting The instantaneous protection operating current is adjustable: Ii=[2-3-4-6-8-10-12-15-OFF]×In, and there are nine settings for option. Ii 8 6 4 3 The method for setting the current for the instantaneous protection is similar to that for over current long time delay protection setting. As shown in the figure, the instantaneous protection current setting value is 8In. 2 10 12 15 Off 8.6.4 Single-phase grounding fault protection Rated current range Ig (A~J)In Error ＜0.9Ig no-action ＞1.1Ig time- delay action I 2T OFF 0.1 0.2 0.3 0.4 0.1 0.2 0.3 0.4 I 2T ON ±10% +OFF(Power off) Time (delay) error Operating time tg(s) Line current I I＞J ±15% 2 I T ON 2 2 anti-time-limit delay I Tg= ( J) tg I≤J Meaning of each setting position for Ig Rated current In A B C D E F G H J Note In≤400A 0.3 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0 ×In 400A<In≤1200A 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0 ×In 1200A<In 500A 640A 720A 800A 880A 960A 1040A 1120A 1200A Explanation for parameter setting The single-phase grounding protection operating current is adjustable: Ig=(A-B-C-D-E-F-G-H-J)×In, and there are nine settings for option. There are nine setting positions for the protective delay tripping time, wherein 4 settings represent the definite-time limit characteristic (i.e., I2t OFF), 4 settings the inverse-time limit characteristic (I2t ON), and 1 setting the function of closing the grounding protection (X). When the tripping time is set as definite-time limit operating characteristic (i.e., the arrow points at the OFF area), the tripping time can be selected as tg=0.1s-0.2s—0.3s-0.4s-x (i.e., the function of closing the grounding protection). When the tripping time is set as inverse-time limit operating characteristic (i.e., I2t ON), there are two cases: ① in the case of I＞1.1Ig and I＞J, the result of the automatic changeover process is the definite-time limit operating characteristic, tg=0.1s-0.2s-0.3s-0.4s; ② The case of the current meeting the condition of 1.1Ig＜I≤J represents the inverse-time limit characteristic and the actual tripping time is calculated according to the formula I2Tg=(J)2tg. In the formula, I is the line current, Tg the actual operating time, J the setting current, and tg the setting tripping time. The method for setting the parameter is similar to that for over current long time delay protection. As shown in the figure, the grounding protection current is C×In，and the tripping time setting is tg=0.4s in the setting position of inverse time limit (I2t ON). C-65 > >> Ig D C B E Tg (s) F G H A ×In J ON .4 .4 .3 .3 .2 .1 .2 X .1 Off 2 It Example 3: If it is known that the grounding fault protection setting current for the intellectual controller with a rated current of In=800A is as the setting position of C, the tripping time is set as the inverse time limit 0.4s. Now there is a failure in the circuit, the line current I=400A, then the actual tripping time can be worked out; it can be seen from the table that the result is C=0.4 Ig=C×In=0.4×800=320A So I=400A＞1.1Ig 2 2 According to the formula I Tg=(J) tg (400)2×Tg=(1.0×800)2×0.4 Tg=1.6s Note: For the intellectual controller, the current settings for the long- and the short-time delay and the instantaneous protection should not come across each other, and the condition of IR＜Isd＜Ii must be ensured. Air Circuit Breaker NA8G 8.7 Explanation for auxiliary functions a. Explanation for test functions When onsite adjustment, periodical inspection or overhaul is made with the controller supported by the breaker, breaking several times is necessary by using the test functions of the controller to check the cooperation of the controller and the breaker. With the breaker on, press the T key, and the intellectual controller will trip instantaneously to cut off the breaker. Note: ① This function can be used only when onsite adjustment or overhaul for the breaker is made, and shall not be used during the normal operation. ② Each time before the controller is switched on, it is necessary to press the reset button in the upper position of the controller panel so that the breaker can be switched on again for operation. b. Explanation for fault memory The controller still has the function of fault memory after reset or de-energized to keep a latest historical event for post analysis. Only when there is a new fault again, the original information is cleared with the current latest faulty data saved. For the inquiry method, refer to the above explanation about fault display 8.8 Explanation for display function When the rated current is greater than or equal to 400A, the primary current shall not be lower than 0.4In for single phase， and 0.2In for three phases for normal operation of the breaker. When the rated current is less than 400A, the primary current shall not be lower than 0.8In for single phase，and 0.4In for three phases for normal operation of the breaker. Note: When the AC220V ST power module is energized, and the voltage falls to AC120V, there will be no display on the controller When the AC380V ST power module is energized, and the voltage falls to AC200V, there will be no display on the controller a. Current display Error range for current display: ±5% b. Voltage display Error range for voltage display: ±1.5% 9. Accessories 9.1 Under voltage release When the under voltage release is not energized, neither power-driven nor manual operation can make the breaker on. For the under voltage release, there are two varieties: instantaneous and time delay operations. The time for the under voltage time delay release is Inm=1600A, the time can be selected from but not adjusted in the range of 0 – 7s; Inm=3200A or 6300A, the time can be selected from and adjusted among 0.5s, 1s, 3s, and 5s. When, within 1/2 delay time, the power voltage returns to 85%Ue or above, the breaker will not get disconnected. Operating characteristic: Rated operational voltage Ue(V) AC230 AC400 Operating voltage(V) (0.35~0.7)Ue Reliable switching voltage(V) (0.85~1.1)Ue Reliable not-switching voltage(V) ≤0.35Ue Power consumption(W) 20VA Under-voltage release (Inm=1600A) Under-voltage release (Inm=3200A, 6300A) Shunt release (Inm=1600A) Shunt release (Inm=3200A, 6300A) Closing electromagnet (Inm=1600A) Closing electromagne (Inm=3200A, 6300A) 9.2 Shunt release After the shunt release is energized, the breaker is switched off instantaneously to allow remote operation. Operating characteristic: Rated control supply voltage Us(V) AC230 AC400 Operating voltage (V) (0.7~1.1)Us Power consumption (W) 200VA Breaking time 50±10ms DC220 DC110 200W 9.3 Closing electromagnet After the motor energy storage is ended, energizing the closing electromagnet will make the energy storage spring force of the operating mechanism to be released instantaneously to rapidly switch the breaker on. Operating characteristic: Rated control supply voltage Us(V) AC230 AC400 Operating voltage (V) (0.85~1.1)Us Power consumption (W) 200VA Closing time 50±10ms DC220 DC110 200W > >> C-66 C Air Circuit Breaker NA8G 9.4 Power operating mechanism The functions of motor energy storage and automatic energy re-storage after the breaker comes on are available to ensure that the breaker can come on immediately after it gets disconnected. Operating characteristic: Rated control supply voltage Us(V) AC230 AC400 (0.85~1.1)Us DC220 DC110 Operating voltage (V) Power consumption (W) 75/150VA 75/150W Energy storage time ＜4s Frequency of operation At most 3 times in a minute (Inm=1600A) (Inm=3200A, 6300A ) (Inm=1600A) (Inm=3200A, 6300A ) 9.5 Auxiliary contact (with a common point) 4 groups of changeover contacts (2 N.O. and 2 N.C.) are provided for the standard form of auxiliary contacts, and 6 groups of changeover contacts (3 N.O. and 3 N.C.) for the special form (Inm=1600A not available for DC). Technical parameters: Rated thermal current Ith(A) Rated voltage(V) 230 AC 400 220 DC Rated control capacity 6 300VA 6 60W 9.6 Separator between phases The separator is installed between the phases of the line bank to improve the insulating ability between the phases of the breaker. 9.7 Key lock The OFF pushbutton of the breaker can be locked in the position of depress, and at this time, the breaker cannot be closed for operation; after the user selects the option, the factory provides locks and keys; one breaker is provided with one independent lock and one key for the one lock; two breakers, two independent locks and one key for the two locks; three breakers, three same locks and two same keys for the three locks. Note: a.For the air circuit breaker with key interlock, when the key has to be pulled out, it is necessary to first press the OFF key, turn the key anticlockwise, and then pull out the key. b.The key for the 1600 does not work for the 3200 and 6300 shell breakers and vise versa, so be on guard against the distinction between them. 9.8 Pushbutton lock It is used to lock the button for opening and closing the breaker with the padlock used for such a purpose. (Padlocks to be provided by users themselves) 9.9 Door frame and lining pad They are installed on the door of the distribution cabinet room to seal it with a protection level of up to IP40. 9.10 Drawer type of air circuit breaker “separation” position locking device For the “separation” position of the open frame (draw-out) circuit breaker, a lock rod can be pulled out to lock the matter, and the breaker locked will be unable to be turned towards the TEST or CONNECTION position. Padlocks have to be provided by users themselves. 9.11 The drawer type of air circuit breaker about any working position locking device After the breaker body is locked automatically in any working position, it is necessary to turn the key to unlock the matter so that the break body can be moved to the next working position by turning the handle. (this function available for 3200 to 6300). 9.12 Interlock with the door Interlock with the door for the break status When the breaker is closed, the cabinet door must not be opened; when the breaker is switched off, the cabinet door is allowed to be opened. Interlock with the door for the breaker position When the breaker is in the position of connection and test, the cabinet door must not be opened; when the breaker is the separation position, the cabinet door is allowed to be opened. 9.13 Mechanical interlock Steel cable interlock for two breakers placed horizontally or joint rod interlock for two superimposed breakers. C-67 > >> Air Circuit Breaker NA8G 10. Installation 10.4 Installation of the fixed type breaker Place the breaker into the distribution cabinet, and fasten it by using 4 pieces of M6(In=1600A) or M10(In=3200A or more) bolts and washers. The breaker shall be installed stably with no additional mechanical stress to avoid damage of the breaker or bad contact of the main bus bar. 10.1 Following items to be checked before installation Check the label plate on the breaker panel to see if it is conform to the specifications of the ordered goods. a.Rated current b.Under voltage release voltage and delay time c.Shunt release voltage d.Closing electromagnet voltage e.Motor voltage 10.5 Installation of the open frame (draw-out) circuit breaker Take the breaker body out of the draw-out socket, and install the socket in the distribution cabinet, and fasten it by using 4 pieces of M6(In=1600A) or M10(In=3200A or more) bolts and washers; the breaker shall be installed stably with no additional mechanical stress to avoid damage of the breaker or bad contact of the main bus bar. After the work is completed, mount the body into the draw-out socket. 10.2 Before installation, operation, maintenance and inspection, you shall read this manual, and consult the manufacturer for questions, if any. 10.3 Preparations before installation Before the breaker is installed, check the insulation resistance of the breaker by using a 1000V megohmmeter according to regulations; when the surrounding media temperature is 25℃±5℃ and the relative humidity 50% - 70%, the insulation resistance shall not be less than 20 megohm. The place with the insulation resistance to be tested includes: the place between various phases and between various phases and the frame when the breaker is closed; the place between in- and out- lines of various phases. 10.6 The specifications of the wiring copper bars for the primary circuit of the breaker shall meet the copper bar specifications used under the conditions of conventional heating in IEC/EN 60947-2 10.7 The breaker shall be grounded substantially. 11. Common faults and troubleshooting Listed below are the problems which users may encounter during installation, adjustment, and operation of the breaker, and the possible reasons and elimination methods. No. Technical problems Possible causes Diagnosis and trouble shooting 1 Check the breaking current and operating time on the intellectual controller 2 Analyze the operation of the load and power network Overload fault tripping 3 Promptly find and shoot the trouble if overload is confirmed (long time delay indicator on) 4 For lack of match between the actual running current and the long time delay operating current, please modify the long-time delay operating current setting for a proper match and protection according to the actual running current 5 Press the reset button to close the breaker again 1 Breaker tripping (fault indicator on) Short-circuit fault tripping (short time delay or instantaneous indicator on) 1 Check the breaking current and operating time on the intellectual controlle 2 Promptly find and shoot the trouble if overload is confirmed 3 Check the setting value of the intellectual controller 4 Check to see whether the breaker is in good condition, and determine whether it can be closed for operation 5 Press the reset button to close the breaker again 1 Check the breaking current and operating time on the intellectual controller 2 Promptly find and shoot the trouble if it is confirmed that there is a grounding fault Grounding fault tripping (grounding fault indicator on) 3 If no grounding fault is detected, please determine whether the grounding fault current setting is proper, and can be well matched with the actual protection; if not, the setting shall be modified 4 Press the reset button to close the breaker again Under voltage release Tripping 1 Check to see if the power voltage is lower than 70%Ue 2 Check the under voltage release and control unit for fault Mechanical interlock action Check the working condition of two breakers equipped with mechanical interlock. 1 Whether the under voltage release has been energized 2 Whether the power voltage is lower than 85%Ue 3 Whether the under voltage release or control unit malfunctions, if so, the release shall be replaced. Under voltage release No attracting Reset button fails to reset 2 Breaker fails to close Press the reset button to close the breaker again. Open frame (draw-out) circuit breaker f ails to be put to the right position by rocking Open frame (draw-out) circuit breaker Bad contact for the secondary circuit Check the contract status of the secondary circuit, and shoot the trouble, if any 1 Check the motor control power supply and see if it is well providing power, and the voltage must be ≥85%Us 2 Check the status of the motor energy storage mechanism. Breaker fails to pre-store energy Put the open frame (draw-out) circuit breaker to the right position by rocking (with it locked in the connection position) Closing electromagnet trouble 1 Check the power voltage of the closing electromagnet, and it must be higher than or equal to 85%Us 2 If there is any trouble in the closing electromagnet to enable the attracting, it shall be replaced. > >> C-68 C Air Circuit Breaker NA8G No. Technical problems Possible causes 1 There may be short circuit current when the matter is switched on, and in this case you shall find and shoot the trouble 2 Check to see if there is any overload current in the circuit, find and shoot the trouble, if any 3 Check the setting value of the intellectual controller for reasonability, and a re-setting process is necessary if not reasonable 4 Press the reset button to close the breaker again 3 Breaker trips after closed Tripping immediately Delay tripping 4 Breaker fails to open The breaker fails to open in power-driven mode The breaker fails to open in manual mode 5 Breaker fails to store energy Energy failed to be stored in power-driven mode Can't achieve manual energy storage 1 Check the shunt release circuit for reliable connection and the shunt release for trouble, and the release shall be replaced if the fault is confirmed 2 Check he operating mechanism for mechanical fault. 1 Check the motor energy storage mechanism control power voltage, and the voltage shall be ≥85%Us; check the status of the circuit connection 2 Check the motor Energy storage mechanism malfunction 6 Breaker fails to be pulled out when the open frame (draw-out) circuit breaker is in the SEPARATION position Rock rod fails to be pulled out Put the breaker completely Breaker fails to completely reach the SEPERATION position to the SEPERATION position by rocking 7 Open frame (draw-out) circuit breaker fails to be put to the CONNECTION position by rocking The "drawer” has seized up for foreign matters fall in it; Check it for foreign matters and for condition damage in the mechanism for putting in by rocking or the of the rack and gear Turn the key on the “drawer” to unlock the matter gear thereof; Position locking device fails to be unlocked No display on the intellectual controller screen Intellectual controller fails to be energized by power supply: 1 Check to see if the intellectual controller power supply is well be connected and works well Improper input voltage for the auxiliary power supply 2 Cut off the intellectual controller control Improper secondary output voltage for the transmitter power supply, and then connect the power supply; Unreliable connection between the secondary output If the fault is still present, there may be some terminal of the transmitter and the controller troubles in the controller which has to be replaced 8 C-69 > >> Pull out the rock rod Air Circuit Breaker NA8G 12. Specifications for ordering Order amount User Tel Order date Type and size □NA8G-1600 □NA8G-3200 □NA8G-6300 Rated current (In)A □200 □400 □630 □800 □1000 □1250 □1600 □1600 □2000 □2500 □2900 □3200 □4000 □5000 □6300(don’t have 4P) Installation mode □draw-out type □Fixed type (no such products for over 4000A) Connection mode □Horizontal connection Number of poles □3P □Vertical connection □Front connection □mixed connection (connection mode to be noted) □4P Factory’s setting values: IR=1In, 2s(6IR); Isd=8IR, inverse-time limit 0.4s; Ii=12In; In＞1200A Ig=800A; In≤1200A Ig=D×In, OFF If the user has some requirements different from the defaulting, please write the numerical values on the line below Operating current setting______In (0.4,0.5,0.6,0.7,0.8,0.9,0.95,0.98,1) Long-time delay protectionIR Setting of the Operating time setting______s (1,2,4,8,12,16,20,24,30) Short-circuit short-time delay protectionIsd Operating current setting______IR (1.5,2,2.5,3,4,5,6,8,10) hort-circuit instantaneous protectionIi Operating time setting □inverse time______s (0.1,0.2,0.3,0.4,OFF) Operating current setting______In (2,3,4,6,8,10,12,15,OFF) Intelligent controller protection parameter C Operating current setting______In See Manual, p. 24 Operating time setting □inverse time______s □Definite-time limit______s Ground protectionIg Selecting the type □Standard type Power input □AC400V Basic function Three-section protection against over current Neutral line or grounding fault protection Test function Fault inquiry/memory function Self-diagnostic function Optional function (this function to be added as required by the user, and to be matched with the controller type) □Over voltage protection □Under voltage protection □Over frequency protection □Under frequency protection □Voltage unbalance measurement □Phase sequence protection □Voltage measurement □Frequency measurement □Measurement of harmonic current □Power factor measurement □Power measurement □Phase sequence detection □Voltage unbalance rate measurement □Electric energy measurement □Contact equivalent □Power network history parameter recording function □MCR make/break function □Load monitoring function □Signal contact output function □Communication function □ZSI regional interlocking protection □AC230V □Multifunctional type □DC220V □DC110V □DC24V Voltage measurement Accessories for optional configuration Accessories for standard configuration Note: when the product is a multifunctional controller as arranged by the user, the communication function and the like are the basic function configuration Under voltage release □Instantaneous □Time delay______s (1-2-3-4-5-6-7s provided for the 1600 shell, optional but not adjustable; 0.5-1-3-5s for the 3200 and 6300 shell, optional and adjustable) □AC400V □AC230V Shunt release □AC400V □AC230V □DC220V □DC110V Closing electromagnet □AC400V □AC230V □DC220V □DC110V Energy storage motor □AC400V □AC230V □DC220V □DC110V Auxiliary contact □2 NO and 2 NC OFF locking device Mechanical interlock □3 NO and 3 NC(Inm=1600not available for DC) □One breaker is provided with one lock and one key □Two breakers is provided with two same locks and one key (the same key/lock not available for the 1600 and 3200/6300 shell breakers) □Three breakers is provided with three same locks and two keys (the same key/lock not available for the 1600 and 3200/6300 shell breakers) Two-breaker interlock solution □BUTTON locking device □Separator between phases □Steel cable interlock □Joint rod □Three-position locking device for the draw-out socket □Door interlock □Door frame □Auxiliary power module Note: Extra costs are needed for the optional functions, optional accessories and the like for the breaker. > >> C-70 Air Circuit Breaker NA1 11 7 12 8 13 14 1 15 3 4 5 C-71 > >> Air Circuit Breaker NA1 NA1 Air Circuit Breaker 1 Drawout type 2 Fixed type 3 Intelligent controller 4 Operating mechanism 5 Auxiliary contact 6 Locking-device 7 Arcing chamber 8 Secondary connecting part 9 Wire-cable mechanical interlock C 9 10 10 Connecting-rod type mechanical interlock 11 Shunt release 12 Closing electromagnet 13 Under-voltage release 14 Motor-driven energy-storage mechanism 15 Rotary handle 16 Fixed plate 2 16 6 > >> C-72 Air Circuit Breaker NA1 NA1-1000 200A to 1000A NA1-2000 630A to 2000A Summary 5 basic frame sizes For your various requirements, the Air Circuit Breaker NA1 includes 5 basic frame sizes as followed. NA1-3200, 4000 2000A to 4000A NA1-6300 4000A to 6300A C-73 > >> Air Circuit Breaker NA1 1. General 2.6 Type designation 1.1 Application scope NA1 series air circuit breaker is suitable for the circuit of AC 50Hz/60Hz with rated service voltage 400V, 690V and rated service current up to 6300A. It is mainly used to distribute electric energy and protect circuits and electric equipment against over-load, under-voltage, short-circuit and single-phase earthing fault. With intelligentized and selective protection functions, the breaker can improve the reliability of power supply, and avoid unnecessary power failure. The breaker is applicable for power stations, factories, mines (for 690V) and modern high-buildings, especially for the distribution system of intelligentized building. 1.2 Standard: IEC/EN 60947-2. NA1 - □-□□ / □-□-□-□-□ Voltage of secondary circuit AC220V, AC380V, AC230V, AC400V DC220V, DC110V Wiring of main circuit: H:Horizontal wiring of main circuit V:Vertical wiring of main circuit Mode of installation: F:Fixed type D:Draweout type 2. Operation conditions C Mode of operation: M:Manual P: Power-driven 2.1 Temperature condition: -5℃~40℃; the average value within 24h shall not exceed +35℃ (special situation excluded); 2.2 Altitude:≤2000m; 2.3 Pollution grade: Grade 3; 2.4 Air conditions: At mounting site, relative humidity not exceed 50% at the max temperature of +40℃, higher relative humidity is allowable under lower temperature, RH could be 90% at +20℃, special measures should be taken to occurrence of dews; 2.5 Note: Without the intelligent controller, the breaker functions as a switch-disconnector. No. of poles: 3:3-pole 4:4-pole Intelligent controller: M: Standard type 3M: Multifunctional type 3H: Communication type Rated current: Frame size rated current Rated current 200A 400A 1000A 630A 800A 1000A 630A 800A 2000A 1000A 1250A 1600A 2000A 3200A 2000A 2500A 4000A 4000A 3200A 4000A 4000A 6300A 5000A 6300A Frame size rated current: 1000A, 2000A, 3200A,4000A, 6300A Design sequence number ACB Company code > >> C-74 Air Circuit Breaker NA1 3. Structure = + Drawer seat Body Drawout type breaker/switch-disconnector Fixed plate for the fixed type breaker Fixed type breaker/switch-disconnector Fault-breaking indicator reset button Enclosure Under-voltage release Making button Breaking button Energy storage & release indicator Breaking/making indicator Name plate Shunt release Closing electromagnet Auxiliary contact Structure for in and out Rotary handle Motor-driven energy storage mechanism Locking device Rotate out Rotate in C-75 > >> Intelligent controller Air Circuit Breaker NA1 4. Main technical parameter Type NA1-1000 Rated ultimate short circuit breaking capacity Icu=42kA 400V 25kA 690V Rated service short circuit breaking capacity Ics=30kA 400V 20kA 690V Rated short-time withstand current Icw=30kA / 1s 400V Rated current In (A) 200 400 630 Number of poles C 20kA / 1s 690V 800 1000 3, 4 Rated voltage Ue (V) 400, 690 Rated insulation voltage Ui (V) 800 Rated current of N-pole In (A) 50%In Fixed disconnection time (ms) 23~32 Standard type (M) Intelligent controller Communication type (H) 5000 Electric life Operation performance Non-maintenance 10,000 Mechanical life Maintenance Connection pattern 20,000 Horizontal, Vertical Motor operational standard configuration weight (kg) Drawout 3P/4P 38/55 Fixed 3P/4P 22/26.5 Standard configuration: M type intelligent controller; Under-voltage release; Shunt release; Motor-driven energy-storage mechanism Type NA1-2000 Rated ultimate short circuit breaking capacity Icu=80kA 400V 50kA 690V Rated service short circuit breaking capacity Ics=50kA 400V 40kA 690V Rated short-time withstand current Icw=50kA / 1s 400V Rated current In (A) 630 Number of poles 800 1000 1250 1000 Rated current of N-pole In (A) 50%In Fixed disconnection time (ms) 23~32 Standard type (M) Communication type (H) 5000 Electric life Non-maintenance 10,000 Mechanical life Maintenance Connection pattern Motor operational standard configuration weight (kg) 2000 400, 690 Rated insulation voltage Ui (V) Operation performance 1600 3, 4 Rated voltage Ue (V) Intelligent controller 40kA / 1s 690V 20,000 Horizontal, Vertical Drawout 3P/4P 67.5 / 79.8 69.6 / 83.65 78.6 / 90.5 Fixed 3P/4P 42.4 / 52 44 / 54 45 / 56 > >> C-76 Air Circuit Breaker NA1 Type NA1-3200, NA1-4000 Rated ultimate short circuit breaking capacity Icu=80kA 400V 65kA 690V Rated service short circuit breaking capacity Ics=65kA 400V 65kA 690V Rated short-time withstand current Icw=65kA / 1s 400V Rated current In (A) 2000 50kA / 1s 690V 2500 Number of poles 3200 4000 3, 4 3 Rated voltage Ue (V) 400, 690 Rated insulation voltage Ui (V) 1000 Rated current of N-pole In (A) 100%In Fixed disconnection time (ms) 23~32 Standard type (M) Intelligent controller Communication type (H) 5000 Electric life Operation performance Non-maintenance 10,000 Mechanical life Maintenance Connection pattern 20,000 Horizontal, Vertical Motor operational standard configuration weight (kg) Drawout 3P/4P 90.5 / 116 90.5 / 116 102.8 / 131 132 / 172 Fixed 3P/4P 54.8 / 68 54.8 / 68 56.5 / 86 85 / - Standard configuration: M type intelligent controller; Under-voltage release; Shunt release; Motor-driven energy-storage mechanism Type NA1-6300 Rated ultimate short circuit breaking capacity Icu=120kA 400V 85kA 690V Rated service short circuit breaking capacity Ics=100kA 400V 75kA 690V Rated short-time withstand current Icw=100kA / 1s 400V rated current In (A) 4000 Number of poles 5000 3 400, 690 Rated insulation voltage Ui (V) 1000 Rated current of N-pole In (A) 100%In Fixed disconnection time (ms) 23~32 Operation performance Standard type (M) Communication type (H) 2500 Electric life Non-maintenance 5000 Mechanical life Maintenance Connection pattern Motor operational standard configuration weight (kg) C-77 > >> 6300 3, 4 Rated voltage Ue (V) Intelligent controller 75kA / 1s 690V 10,000 Horizontal, Vertical Drawout 3P/4P 202 / 236 202 / 236 236 / - Fixed 3P/4P -/- -/- -/- Air Circuit Breaker NA1 5. Dimensions and connection NA1-1000 Drawout-type 216 34 Boring dimension of doorcase 268 226 Installation panel 91.5 5 358 304 316 8×φ5 101.5 362 H N L1 L 70 158 C Installation hole on right side 65 323 Connected position 70 n×φ13 35 15 35 18 12 Disconnected position 27 70 12 105 A N 200,400A 16 45 n×φ10.5 630,800, 1000A 158 2×φ8.5 2-11.5×8.5 NA1-1000 L1 L 3P 194 284 4P 264 354 In(A) A(mm) n(3P/4P) H(mm) 200, 400 32 3/4 6 630 50 6/8 8 800, 1000 50 6/8 10 L1(3P) L1(4P) NA1-1000 Fixed-type Boring dimension of doorcase H 268 N 259 Installation panel 70 70 9 A 239 3 15 216 N 2 46.5 312 8×φ5 270 101.5 315 226 Installation hole on right side 70 12 200,400A n×φ13 35 12 18 15 35 53 144 12 630,800, 1000A 4-9×13 n×φ10.5 NA1-1000 L1 In(A) A(mm) n(3P/4P) H(mm) 3P 246 274 200, 400 32 3/4 6 4P 316 344 630 50 6/8 8 800, 1000 50 6/8 10 L L1 L > >> C-78 Air Circuit Breaker NA1 NA1-2000 Drawout-type 45(Disconnected position) 448(4P) a 353(3P) N pole 258 439 42.5 95 92.5 30 N pole 60 14 37 95 16×Φ13 70 175 67 187.5 383.5 30 97 14 37.5 a 112 92 95 horizontal connection(Default Configuration) 23 10 8×Φ13 60 28 292 465 375(3P) 95 470(4P) 95 95 92.5 268 378 40 17 Φ14 11×Φ5 175 N pole 115 2×11×17 55 302 47 20 265(3P) 360(4P) Φ11 302 155 21.5 horizontal connection Lengthen busbar 172 Installation panel 32×Φ13 187.5 Right & outer side of breaker 344 33 Right & outer side of breaker 28 60 95 95 95 L type Horizontal Connection Opening hole on panel In A a mm 630 10 800~1600 15 2000 20 NA1-2000 Drawout-type, vertical, rear connection 448(4P) 45(Disconnected position) 353(3P) C Direction 97 175 10 187.5 14 439 292 375(3P) 55 438.5 37 10 70 95.5 42.5 122.5 258 60 28 4×Φ13 Φ14 378 268 2×11×17 302 47 20 265(3P) 360(4P) Φ11 302 155 21.5 470(4P) In A a mm 630 10 800~1600 15 2000 20 55 C Direction 172 11×Φ5 175 33 344 187.5 Installation panel a N pole Right & outer side of breaker Right & outer side of breaker Opening hole on panel C-79 > >> 95 95 95 92.5 Air Circuit Breaker NA1 NA1-2000 Drawout-type, horizontal, rear connection 448(4P) 45(Disconnected position) 353(3P) 37 187.5 175 438.5 268 439 a mm 630 10 800~1600 15 2000 20 378 302 In A C Direction 47 20 265(3P) 2×11×17 Φ14 60 Installation panel 344 33 Right & outer side of breaker 187.5 Right & outer side of breaker 8×Φ13 55 172 11×Φ5 28 10 55 N pole 95 95 92.5 95 Opening hole on panel NA1-2000 Fixed-type 413(4P) 18min Zero arcing covering ferreous material 318(3P) 292 28 115 17 95 258 112 95 435(4P) 311.2 86 95 N pole 17 Installation hole on Right & outer side of breaker 2 342.2 Opening hole on panel Installation panel 8×Φ13 60 95 95 86 horizontal connection shortened busbar 115 269 Installation hole on Right & outer side of breaker 95 horizontal connection Lengthen busbar 28.5 150 8×Φ5 340(3P) 95 28 N pole 30 340(3P) 435(4P) 300 60 67 21 11 181 359 30 N pole 13 11 290 4×Φ12 86 b 55 69.5 95 16×Φ13 60 150 95 horizontal connection (Default Configuration) 32 a 402 a 50 8×Φ13 60 42 N pole 40 360(4P) 302 155 21.5 470(4P) Φ11 175 C 292 375(3P) 14 97 14 10 70 95.5 42.5 122.5 258 a C Direction In A a mm b mm 630 10 17 800~1600 15 17 2000 18.5 20 28 60 32×Φ13 95 95 95 L type Horizontal Connection > >> C-80 Air Circuit Breaker NA1 NA1-3200 Drawout-type 100 45(Disconnected position) 16×Φ13 100 50 25 N Pole 528(4P) 413(3P) 50 a 125 125 92.5 439 70 37.5 352 491 25 75 14 37 92 175 100 16×Φ13 217.5 23 97 10 horizontal connection(Default Configuration) 42.5 112 258 a 125 435(3P) 536 550(4P) 125 125 125 92.5 55 202 11×Φ5 33 Installation panel 404 Right & outer side of breaker Right & outer side of breaker 217.5 40 115 N Pole 17 2×11×17 Φ14 175 378 362 47 20 325(3P) 440(4P) Φ11 302 268 155 21.5 horizontal connection shorten busbar a mm 2000~2500 20 3200 30 40 100 32×Φ13 115 Opening hole on panel In A 125 125 L type vertical connection NA1-3200 Drawout-type, horizontal, rear connection 528(4P) 45(Disconnected position) 413(3P) C Direction 97 175 439 37 10 70 100 100 42.5 126 258 50 8×Φ13 20 217.5 40 352 435(3P) 94 495 In A a mm 2000~2500 20 3200 30 2×11×17 55 Φ14 175 Right & outer side of breaker 302 202 11×Φ5 33 404 217.5 Opening hole on panel C-81 > >> N pole 378 362 C Direction a 47 20 268 Φ11 325(3P) 440(4P) 155 21.5 550(4P) Installation panel Right & outer side of breaker 115 115 115 102.5 Air Circuit Breaker NA1 NA1-3200 Drawout-type, horizontal, rear connection 528(4P) 45(Disconnected position) 413(3P) 97 439 37 10 70 107.5 42.5 112 258 a C Direction 175 C 217.5 352 435(3P) 495 a mm 2000~2500 20 3200 30 302 268 378 362 202 11×Φ5 33 404 Right & outer side of breaker 217.5 Right & outer side of breaker N pole 100 50 Installation panel 94 55 20 C Direction 40 2×11×17 Φ14 175 In A 47 20 Φ11 325(3P) 440(4P) 155 21.5 550(4P) 16×Φ13 115 Opening hole on panel 125 125 92.5 NA1-3200 Fixed-type Zero arcing covering 493(4P) 378(3P) N pole 16×Φ13 86 40 40 72 352 15 18min ferreous material 402 115 11 211 389 13 11 290 115 96 12×Φ13 18.5 86 50 32 21 N pole 60 69.5 150 115 400(3P) 115 115 96 horizontal connection shorten busbar 115 362 28.5 Installation hole on 400(3P) Installation hole on Right & outer side of breaker 404 2 In A a mm 2000~2500 20 3200 30 40 86 32×Φ13 8×Φ5 Right & outer side of breaker 202 515(4P) 40 4×Φ12 N pole 15 269 311 515(4P) 150 50 115 horizontal connection(Default Configuration) 55 258 112 a 115 a 115 115 115 Installation panel L type vertical connection Opening hole on panel > >> C-82 Air Circuit Breaker NA1 NA1-4000 Fixed-type (3P) 493 134 40 10 ferreous material 16×Φ13 120 15 15 18min Zero arcing covering 352 130 189.5 79 21 258 402 130 11 11 13 69.5 150 50 189.5 Horizontal 55 112 30 40 15 290 515 424 311 269 4×Φ12 17 40 175 479 50 24×Φ15 28.5 150 362 140 8×Φ5 202 2 Installation hole on 515 Right & outer side of breaker Installation panel 207.5 207.5 Installation hole on Right & outer side of breaker 404 Vertical Opening hole on panel NA1-4000 Drawout-type (3P) 45(Disconnected position) 97 258 37 10 70 92 42.5 112 439 30 528 175 217.5 494 352 378 103 302 362 20 440 268 Φ11 40 155 20 21.5 550 12×Φ13 2×11×17 50 47 Φ14 55 140 175 202 11×Φ5 33 Right & outer side of breaker 404 217.5 Opening hole on panel C-83 > >> Installation panel Right & outer side of breaker 197.5 197.5 77.5 Air Circuit Breaker NA1 NA1-4000 Drawout-type (4P) 756 45(Disconnected position) 92 97 175 C 37 10 439 70 42.5 112 258 20 C Direction 187.5 292 490 155 21.5 788 302 16×Φ13 155 40 N Pole 20 C Direction 378 302 20 678 268 Φ11 55 Φ14 175 103 47 2×11×17 172 11×Φ5 33 Installation panel 344 Right & outer side of breaker 187.5 Right & outer side of breaker 80 50 142.5 206.5 206.5 140 Opening hole on panel NA1-6300 (In=4000A,5000A) Drawout-type 903(4P) 45(Disconnected position) 258 92 70 37 42.5 112 439 30 798(3P) 217.5 10 97 352 175 813(3P) 494 302 362 378 268 Φ11 N Pole 100 202 55 11×Φ5 33 404 217.5 220 40 103 Φ14 175 28×Φ15 155 47 2×11×17 20 20 703(3P) 818(4P) 155 21.5 928(4P) Opening hole on panel Right & outer side of breaker Right & outer side of breaker 55 178 247 247 164 Opening hole on panel > >> C-84 Air Circuit Breaker NA1 NA1-6300 (In=6300A) Drawout-type (3P) 45(Disconnected position) 258 42.5 70 92 37 112 439 30 903 10 97 175 217.5 352 494 155 21.5 928 180 260 40 103 20 302 378 362 20 818 268 Φ11 47 2×11×17 55 Φ14 175 24×Φ15 202 11×Φ5 33 Right & outer side of breaker 404 217.5 Opening hole on panel C-85 > >> Installation panel Right & outer side of breaker 80 320 320 140 Air Circuit Breaker NA1 6. Secondary circuit wiring Standard type, type (M) 6.1 NA1-1000 Intelligent controller Main circuit Auxiliary contact Emergency break Motor-driven Motor-driven make break Motor-driven energy-storage Auxiliary contact SB1 SB2 SB3 HL1 HL2 HL3 ▲ 3 5 7 9 14 15 19 17 21 23 25 27 29 33 35 31 37 C 39 XT FU Intelligent controller Q DF1 DF2 F X M Power of control circuit DF3 DF4 SA TA FU 1 2 + - DC24V 4 6 8 10 11 12 13 16 18 20 22 24 26 28 30 32 34 36 38 40 XT Power module Hl1: Failure indicator HL2: Close indicator HL3: Energy storage indicator SB1: Under-voltage button SB2: Shunt button SB3: Close button Q: Under-voltage release F: Shunt release X: Close electromagnet M: Energy storage motor DF1-F4: Auxiliary switch 1#, 2#: Auxiliary power input(DC24V) 3#,4#,5#: Fault trip contact output(4# common terminal, contact capacity AC230V,5A 6#,7#: To be connected with current transformer(selective) 8#,9#: Making indicator (capacity AC400V,1A) 10#: Over-current pre-alarm signal output (selective) # 11 : Short current trip signal output (selective) 12#: Earthing trip alarm output (selective) 13#: Self-checking alarm signal output (selective) # 14 : Common line of different contacts 15#: Earthing protection line 16#,17#: Normal contact of the controller (contact capacity AC400V 1A) 27#,28#: Under-voltage release 29#,30#: Shunt release # # 31 ,32 : Closing electromagnet # 33 ,34#,35#: Energy storage motor 18#~26#, 38#~40#: Auxiliary contact (auxiliary contact capacity: AC230V,5A) Note: Dashed is to be connected by users. > >> C-86 Air Circuit Breaker NA1 Communication type, type (H) L1 N PE Emergenay break Intelligent controller Main circuit Motor-driven break Motor-driven make Auxiliary switch FU L Profibus-DP N PE ST-4 Power module - ST-DP Device 12 13 Fault indicator - + 14 15 - + 16 17 - HL3 + 18 19 1 2 3 4 5 6 7 8 9 10 11 D11D12 D13 + + DC24V COM ST201 Green HL1 + HL2 D01 D02 D03 12 13 14 15 16 17 SB1 SB2 SB3 ▲ Red 3 5 7 9 11 13 15 17 19 21 23 25 Intelligent controller 27 29 31 Q F X 33 35 39 XT 37 M DF1 DF2 DF3 SA TA 1 DC24V + 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 XT - Power module Hl1: Failure indicator HL2: Close indicator HL3: Energy storage indicator SB1: Under-voltage button SB2: Shunt button SB3: Close button Q: Under-voltage release F: Shunt release X: Close electromagnet M: Energy storage motor DF1-F4: Auxiliary switch 1#, 2#: Auxiliary power input(DC24V) # # # # 3 ,4 ,5 : Fault trip contact output(4 common terminal, contact capacity AC230V,5A 6#, 7#: To be connected with current transformer(N/O auxiliary contact, capacity AC400V, 1A,when no current transformer) Note: Dashed is to be connected by users. C-87 > >> 8#,9#: Making indicator(capacity AC400V,1A) 10#, 11#: communication output # # 12 , 13 : Signal alarm of load 1 output # 14 , 15#: Signal alarm of load 2 output 16#, 17#: Making signal output # # 18 , 19 : Closing signal output 20#: Communication shield ground line 21#~24#: Voltage signal input of phase N,A,B,C # # 25 , 26 : Auxiliary contact (capacity:AC230V,5A) 27#,28#: Under-voltage release 29#,30#: Shunt release # # 31 ,32 : Closing electromagnet # 33 ,34#,35#: Energy storage motor 36#~40#: Auxiliary contact (capacity:AC230V,5A) Air Circuit Breaker NA1 3NO(normal open) 3NC (normal close) standard type (M) Main circuit Auxiliary contact Intelligent controller Emergency Motor-driven Motor-driven break break make Motor-driven energy-storage Auxiliary contact SB1 SB2 SB3 HL1 HL2 HL3 C ▲ 3 5 7 14 9 15 17 19 21 23 25 27 29 31 33 37 35 39 XT FU Q Intelligent controller DF5 DF6 DF1 DF2 F M X Power of control circuit DF3 DF4 SA TA FU DC24V 1 2 + - 4 6 8 10 11 12 13 16 18 20 22 24 26 28 30 32 34 36 38 40 XT Power module Hl1: Failure indicator HL2: Close indicator HL3: Energy storage indicator SB1: Under-voltage button SB2: Shunt button SB3: Close button Q: Under-voltage release F: Shunt release X: Close release M: Energy storage motor DF1-DF4: Auxiliary switch 1#, 2#: Auxiliary power input(DC24V) # # # # 3 ,4 ,5 : Fault trip contact output(4 common terminal,contact capacity AC230V,5A 6#, 7#: to be connected with current transformer(selective) 8#,9#: Making indicator (capacity AC400V,1A) 12#~26#: Auxiliary contact(auxiliary contact capacity: AC230V,5A) 27#,28#: Under-voltage release 29#,30#: Shunt release 31#,32#: Closing release 33#,34#:Energy storage indicator 34#,35#: Energy storage motor 38#~40#: Auxiliary contact(auxiliary contact capacity: AC230V,5A) Note: 6NO(normal open) 6NC(normal close), without any additional function. Dashed is to be connected by users. > >> C-88 Air Circuit Breaker NA1 6.2 NA1-2000~6300 The secondary circuit wiring for NA1-2000~3600 with standard type (M) intelligent controller and instantaneous under-voltage release Emergency break Over-current release Main circuit Auxiliary contact Motor-driven Motor-driven make break SB2 Failure 3 5 7 9 Energy storage SB1 SB3 11 13 15 17 19 21 23 25 27 29 31 33 35 F X 36 38 40 42 44 46 48 50 FU Q M AX Power SA Processing unit Intelligent Controller FU 1 4 2 6 8 10 26 28 12 14 16 18 20 22 24 30 32 34 37 39 41 43 45 47 Open 49 51 Close _ 110V ~ _ 220V Intelligent release power ("1" connect positive pole, and "2" connect negative pole for direct current) ~ ~380V The auxiliary contact modes for customer use Ⅰ Four switch contact (acquiescence) 36 38 37 40 39 41 42 44 43 46 45 47 Ⅱ Five switch contact 36 38 37 40 39 41 42 44 43 46 45 47 48 50 49 SB1: Shunt button SB2: Under-voltage button SB3: Making button Q: Under-voltage release F: Shunt release X: Closing electromagnet M: Energy storage motor XT: Connection terminal SA: Position switch Note: If control voltage of Q, F, X is different from each other, they can be connected to different power. # # 1 ,2 : Auxiliary power input # # # 3 ,4 ,5 : Fault trip contact output(4# common terminal) # # # # 6 ,7 ,8 ,9 : Auxiliary contact, normal open, # # 10 ~24 : empty # # 25 ,26 : to be connected with current transformer(selective) # # 27 ,28 : Under-voltage release # # 29 ,30 : Shunt release # # 31 ,32 : Closing release # # 33 ,34 : Energy storage indicator # # 34 ,35 : Energy storage motor # # 36 ,51 : Auxiliary contact Circuit explanation for signal output: a. Broken-line parts shall be provided by customers. # # b. Terminals 6 ,7 can output NC (normal close) contact if that is required by users. # c. Terminal 35 can be directly connected to power (automatic pre-storing energy), alternatively connect power after connecting NO button (manual-controlled pre-storing energy). d. Terminals 21#~24# is only for wiring with function meter display. (excluding the special wiring) C-89 > >> Air Circuit Breaker NA1 The secondary circuit wiring for NA1-2000~6300 with type (3M) intelligent controller and instantaneous under-voltage release 2 1 L1 N PE to the incoming-line side PE Un U1 U2 U3 SB2 SB1 SB3 C Transformer connected 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 Q F X 34 36 38 40 42 44 46 48 50 47 49 51 SA AX M 1 5 3 7 9 11 13 15 17 19 21 23 25 27 29 31 33 Main circuit Shunt Closing Undervoltage release release electromagnet Intelligent controller The auxiliary contact modes for customer use Ⅰ Four switch contact (acquiescence) 36 38 40 42 44 37 39 41 # # # 46 4 3 45 47 35 37 39 41 43 Energystorage Fault Ⅱ Five switch contact 36 3 8 40 4 2 44 37 39 41 # 46 48 50 43 45 47 49 Energy- Energystorage storage indication motor 45 Open Close Auxiliary switch SB1: Shunt button SB2: Under-voltage button SB3: Making button Q: Under-voltage release F: Shunt release X: Closing release M: Energy storage motor XT: connection terminal SA: Position switch 1#, 2#: Intelligent controller power input Note: When the power supply of the intelligent controller is AC power, the 1#~2# connects to the AC power directly. When the power supply is DC power, forbid connecting the 1#~2# to the DC power directly. Add a DC power supply module, then the DC power connect to the input terminal of the DC power supply module, and the 1#~2# connect to the output terminal of the DC power supply module, or else the intelligent controller will be damaged. 3 ,4 ,5 : Fault trip contact output(4 common terminal) # # # # 6 ,7 ,8 ,9 : Auxiliary contact(normal open) # # 10 ~11 : empty # # 12 ~19 : The programmable output terminal. The normal products without these terminals, but if the customer special ordered, the cost extra added. 3M type acquiescence output: # # # # 12 ,13 : Signal alarm of load 1 output; 14 ,15 : Signal alarm of load2 output # # # # # # # 16 ,17 : Self-diagnose alarm; 18 ,19 : Fault trip; 20 : PE line; 21 ~24 : Display the voltage of the signal input. The normal products without these terminals, if the customer special ordered the function meter, the cost extra added. # 21 : N phase input terminal # # # 22 ,23 ,24 : A, B, C three phase power input terminal (note the sequence) # # 25 ,26 : Connect to the N phase current transformer or the input terminal of the current leakage transformer. The normal products without these terminals, if the customer special ordered, the cost extra added. # # # # # # # # 27 ,28 : Under-voltage release; 29 ,30 : Shunt release; 31 ,32 : Closing release; 33 ,34 : Energy storage indicator # # # # 34 ,35 : Energy storage motor; 36 ~51 : Auxiliary contact Note: a. Red colored part is to be connected by users b. When the power system is three phase three wire, directly connect the Un to U2. ( If the voltage exceeds 400V, special explanation when ordered) > >> C-90 Air Circuit Breaker NA1 The secondary circuit wiring for NA1-2000~6300 with type (3H) intelligent controller and instantaneous under-voltage release L1 N PE 2 1 1 2 3 4 5 ST Power Supply L N L N PE Modular IV - + - + -+ - + To TO3 busbar Profibus-DP 12 13 ST-DP Special connecting wire To the inconnecting-line side PE Un U1 U2 U3 SB2 D11D12D13 DO24VDO24VCOM ST201 DO3 DO1 12 13 14 15 16 17 18 19 SB1 SB3 Transformer connected 4 6 8 18 19 Green Red 2 16 17 + + 1 2 3 4 5 6 7 8 9 10 11 Device Modbus-RTV 14 15 10 12 14 16 18 20 22 24 26 28 30 32 Q F X 34 36 38 40 42 44 46 48 50 47 49 51 SA AX M 1 3 5 7 9 11 13 15 17 19 21 23 25 27 29 Main circuit Intelligent controller Undervoltage release The auxiliary contact modes for customer use Ⅰ Four switch contact (acquiescence) Ⅱ Five switch contact 36 38 40 42 44 37 39 41 # # # 31 33 35 37 39 41 43 Energy storage Fault 46 43 45 47 36 38 46 48 50 43 45 47 49 4 0 42 44 37 39 41 # Shunt release Closing EnergyEnergyelectromagnet storage storage indication motor 45 Open Close Auxiliary switch SB1: Shunt button; SB2: Under-voltage button SB3: Making button; Q: Under-voltage release F: Shunt release; X: Closing release M: Energy storage motor; XT: connection terminal SA: Position switch 1#, 2#: Intelligent controller power input Note: When the power supply of the intelligent controller is AC power, the 1#~2# connects to the AC power directly. When the power supply is DC power, forbid connecting the 1#~2# to the DC power directly. Add a DC power supply module, then the DC power connect to the input terminal of the DC power supply module, and the 1#~2# connect to the output terminal of the DC power supply module, or else the intelligent controller will be damaged. 3 ,4 ,5 : Fault trip contact output(4 common terminal) # # # # 6 ,7 ,8 ,9 : Auxiliary contact（normal open） # # 10 ~11 : communication output # # # # 12 ,13 : Signal alarm of load 1 output; 14 ,15 : Signal alarm of load2 output # # # # 16 ,17 :Breaking signal output; 18 ,19 :Making signal output # # 20 : PE line; 21 : N phase input terminal # # # 22 ,23 ,24 : A, B, C three phase power input terminal (note the sequence) # # 25 26 : Connect to the N phase current transformer or the input terminal of the current leakage transformer. The normal products without these terminals, if the customer special ordered, the cost extra added. ST~DP: DP protocol module. There is no need for the ST-DP protocol module, if the communication protocol is Modbus-RTV. But when the communication protocol is Profibus-DP, the ST-DP protocol module is necessary, but the cost extra added. ST power module IV: power converter (optional components) ST201: Magnify the signal capacity of the controller. ( optional components) If the customer special ordered, the cost extra added. # # # # 27 ,28 : Under-voltage release; 29 ,30 : Shunt release # # # # 31 ,32 : Closing release; 33 ,34 : Energy storage indicator # # # # 34 ,35 : Energy storage motor; 36 ~51 : Auxiliary contact Note: a. Red colored part is to be connected by users b. When the power system is three phase three wire, directly connect the Un to U2. (If the voltage exceeds 400V, special explanation when ordered) C-91 > >> Air Circuit Breaker NA1 The secondary circuit wiring for NA1-2000~6300 with standard type (M) intelligent controller and time-delay under-voltage release Main Over-current release circuit Emergency disconnection SB2 Motor driven break Motor driven close SB1 SB3 Motor driven energy storage 7 9 Auxiliary switch Energy storage Failure 3 5 Under-voltage time-delay release Under-voltage time-delay controller 11 13 15 17 19 21 23 25 27 29 31 33 35 36 38 40 46 48 50 42 44 C FU AX Processing unit Power Intelligent controller FU 4 6 1 2 8 10 12 14 16 18 20 22 24 26 28 30 32 34 37 39 41 43 45 47 Open ~_ 110V ~_ 220V 49 51 Close Intelligent release power(”1” connect positive pole, and “2” connect negative pole for direct current) ~380V The auxiliary contact modes for customer use Ⅰ Four switch contact (acquiescence) 38 4 0 42 44 3 9 41 # 46 48 50 43 45 47 49 SB1: Shunt button SB2: Under-voltage button SB3: Making button Q: Under-voltage time-delay release F: Shunt release X: Closing electromagnet M: Energy storage motor XT: Connection terminal SA: Position switch Note: If control voltage of Q, F, X is different from each other, they can be connected to different power. # 1 ,2 : Auxiliary power input # # # 3 ,4 ,5 : Fault trip contact output(4# common terminal) # # # # 6 ,7 ,8 ,9 : Auxiliary contact（normal open） # # 10 ~24 : empty # # 25 ,26 : to be connected with current transformer(selective) # # 27 ,28 : Under-voltage release # # 29 ,30 : Shunt release # # 31 ,32 : Closing release # 33 ,34#: Energy storage indicator 34#,35#: Energy storage motor 36#,37#: Under-voltage time delay release 38#~51#: Auxiliary contact Circuit explanation for signal output: a. Broken-line parts shall be provided by customers. b. Terminals 6#,7# can output NC (normal close) contact if that is required by users. # c. Terminal 35 can be directly connected to power (automatic pre-storing energy), alternatively connect power after connecting NO button (manual-controlled pre-storing energy). d. The 21#~24# is only for wiring with function meter display. (Excluding the special wiring) > >> C-92 Air Circuit Breaker NA1 The secondary circuit wiring for NA1-2000~6300 with type (3M) intelligent controller and time-delay under-voltage release L1 N PE 1 2 SB2 SB1 SB3 To the incoming-line side PE Un U1 U2 U3 Transformer connected 2 4 6 8 10 12 14 16 18 20 22 24 26 Under-voltage time-delay controller 28 30 32 F X 34 36 38 40 42 44 46 48 50 47 49 51 Q SA AX M 1 5 3 7 9 11 13 15 17 19 21 23 25 27 29 31 33 Main circuit Intelligent controller The auxiliary contact modes for customer use Ⅰ Four switch contact (acquiescence) 38 # # # 46 48 50 43 45 47 49 4 0 4 2 44 3 9 41 35 37 Energy storage Fault # Emergency break Shunt release EnergyClosing storage electromagnet indication Energystorage motor 39 41 43 45 Open Under-voltage time-delay release Close Auxiliary switch SB1: Shunt button; SB2: Under-voltage button SB3: Making button; Q: Under-voltage release F: Shunt release; X: Closing release M: Energy storage motor; XT: Connection terminal SA: Position switch # # 1 , 2 : Intelligent controller power input Note: When the power supply of the intelligent controller # # is AC power, the 1 ~2 connects to the AC power directly. When the power supply is DC power, forbid connecting the # # 1 ~2 to the DC power directly. Add a DC power supply module, then the DC power connect to the input terminal # # of the DC power supply module, and the 1 ~2 connect to the output terminal of the DC power supply module, or else the intelligent controller will be damaged. # # # # 3 ,4 ,5 : Fault trip contact output(4 common terminal); 6 ,7 ,8 ,9 : Auxiliary contact（normal open） # # # # 10 ~11 : empty; 12 ~19 are the programmable output terminal. The normal products without these terminals, but if the customer special ordered, the cost extra added. 3M type acquiescence output: 12#,13#: Signal alarm of load 1 output; 14#,15#: Signal alarm of load2 output # # # # 16 ,17 : Self-diagnose alarm; 18 ,19 : Fault trip # # # 20 : PE line; 21 ~24 : Display the voltage of the signal input. The normal products without these terminals, if the customer special ordered the function meter, the cost extra added. # # # # 21 : N phase input terminal; 22 ,23 ,24 : A, B, C three phase power input terminal (note the sequence) # # 25 ,26 Connect to the N phase current transformer or the input terminal of the current leakage transformer. The normal products without these terminals, if the customer special ordered, the cost extra added. # # # # 27 ,28 : Under-voltage release; 29 ,30 : Shunt release # # # # 31 ,32 : Closing release; 33 ,34 : Energy storage indicator 34#,35#: Energy storage motor; 36#,37#: Under-voltage time delay release # # 38 ~51 : Auxiliary contact Note: a. Red colored part is to be connected by users b. When the power system is three phase three wire, directly connect the Un to U2. (If the voltage exceeds 400V, special explanation when ordered) C-93 > >> Air Circuit Breaker NA1 The secondary circuit wiring for NA1-2000~6300 with type (3H) intelligent controller and time-delay under-voltage release L1 N PE 1 2 1 2 3 4 5 To TO3 busbar 12 13 ST-DP Modbus-RTV 8 To the inconnecting-line side PE Un U1 U2 U3 Transformer connected Green Red 6 - + - + 16 17 18 19 10 12 D11D12D13 DO24VDO24VCOM ST201 DO3 DO1 12 13 14 15 16 17 18 19 SB2 SB1 SB3 Special connecting wire 4 14 15 + 1 2 3 4 5 6 7 8 9 10 11 Device 2 STPower Supply Modular IV L N L N PE - + - + Profibus-DP 14 16 18 20 22 24 26 C Under-voltage time-delay controller 28 30 32 F X 34 36 38 40 42 44 46 48 50 47 49 51 Q SA AX M 1 3 5 7 9 11 13 15 17 19 21 23 25 27 29 31 Fault Intelligent controller The auxiliary contact modes for customer use Ⅰ Four switch contact (acquiescence) 46 48 50 43 4 5 4 7 49 4 0 42 4 4 39 41 35 37 39 Energy storage Main circuit 38 33 Emergency break Shunt release Closing electromagnet Energy storage indication Energy storage motor 41 43 45 Open Under-voltage time-delay release Close Auxiliary switch SB1: Shunt button; SB2: Under-voltage button SB3: Making button; Q: Under-voltage release F: Shunt release; X: Closing release M: Energy storage motor; XT: Connection terminal SA: Position switch # # 1 , 2 : Intelligent controller power input Note: When the power supply of the intelligent controller # # is AC power, the 1 ~2 connects to the AC power directly. When the power supply is DC power, forbid connecting the # # 1 ~2 to the DC power directly. Add a DC power supply module, then the DC power connect to the input terminal # # of the DC power supply module, and the 1 ~2 connect to the output terminal of the DC power supply module, or else the intelligent controller will be damaged. 3#,4#,5#: Fault trip contact output(4# common terminal) # # # # 6 ,7 ,8 ,9 : Auxiliary contact（normal open） # # # # 10 ~11 : Communication output; 12 ,13 : Signal alarm of load 1 output # # 14 ,15 : Signal alarm of load 2 output; 16#,17#: Breaking signal output; 18#,19#: Closing signal output 20#: PE line; 21#: N phase input terminal 22#,23#,24#: A, B, C three phase power input terminal (note the sequence) 25#,26# Connect to the N phase current transformer or the input terminal of the current leakage transformer. The normal products without these terminals, if the customer special ordered, the cost extra added. ST~DP: DP protocol module. There is no need for the ST-DP protocol module, if the communication protocol is Modbus-RTV. But when the communication protocol is Profibus-DP, the ST-DP protocol module is necessary, but the cost extra added. ST power module IV: power converter (optional components) ST201: Magnify the signal capacity of the controller. ( optional components) If the customer special ordered, the cost extra added. # # # # 27 ,28 : Under-voltage release; 29 ,30 : Shunt release # # # # 31 ,32 : Closing release; 33 ,34 : Energy storage indicator # # # # 34 ,35 : Energy storage motor; 36 ,37 : Under-voltage time delay release # # 38 ~51 : Auxiliary contact Note: a. Red colored part is to be connected by users b. When the power system is three phase three wire, directly connect the Un to U2. (If the voltage exceeds 400V, special explanation when ordered) > >> C-94 Air Circuit Breaker NA1 7. Installation 7.1 Installation 7.1.1 Unload the breaker from the soleplate of package. If it is drawout type, firstly pull out the handle under the drawer-base of breaker, and plug it into the hole on central part of plastic cover under the drawer-base crossbeam, anticlockwise turns the handle, the body will slowly slide along the outside of drawer-base. When the guide rod points to separated position and handle can't be rotated any longer, pull out the handle and firmly grasp the aluminum handle on drawer-base, pull out the breaker body and remove it form the base, then move the base from the sole plate and clean up the dirty things inside the drawer-base. Possible positions 7.1.2 Check the insulation resistance with a 500V megger, resistance should not be less than 20M Ω when ambient temperature is 20 ℃± 5 ℃ and relative humidity is 50%~70%. Otherwise dry it. C-95 > >> 7.1.3 Power supply NA1 devices can be supplied either from the top or from the bottom without reduction in performance, in order to facilitate connection when installed in a switchboard. Air Circuit Breaker NA1 7.1.4 Put the breaker (fixed-type) or drawer-base (drawout-type) into the installation-bracket, and make it fixed, directly connect the cable wire of main circuit to the bus wire of fixed-type circuit breaker. Alternatively put breaker body onto the slideway of drawer-base. Plug the handle into installation hole, clockwise turns it until the under-part of drawer-base points at the connection position and ”click” sound is heard. It indicates that breaker body has been connected to its place, then connect the cable of main circuit to drawer-base. Mounting the circuit-breaker It is important to distribute the weight of the device uniformily over a rigid mounting surface such as rails or a base plate. This mounting plane should be perfectly flat (tolerance on support flatness: 2 mm).This eliminates any risk of deformation which could interfere with correct operation of the circuit breaker. NA1 devices can also be mounted on a vertical plane using the special brackets. Mounting with vertical brackets Mounting on rails C 7.1.5 Partitions Sufficient openings must be provided in partitions to ensure good air circulation around the circuit breaker; Any partition between upstream and downstream connections of the device must be made of nonmagnetic material. For high-currents, of 2500 A and upwards, the metal supports or barriers in the immediate vicinity of a conductor must be made of non-magnetic material A;Metal barriers through which a conductor passes must not form a magnetic loop. A:non magnetic material A Busbars The mechanical connection must be exclude the possibility of formation of a magnetic loop around a conductor. non magnetic material > >> C-96 Air Circuit Breaker NA1 7.1.6 Busbar connections The busbars should be suitably adjusted to ensure the connection points are positioned on the terminals before the bolts are inserted B The connections are held by the supporter which is fixed to the framework of the switchboard, in this way the circuit breaker terminals do not have to support its weight C. (This support should be placed close to the terminals). B C B A 7.1.7 Main circuit adopts cable connection Users should not apply too strong mechanical strength on the terminals of Air Circuit Breaker. Extend the bus-bar of circuit breaker with connecting bus-bar, position the wiring piece of cable before inserting bolts; the cable should be fixed on the frame of distributing cabinet firmly. 18min C-97 > >> 18min Air Circuit Breaker NA1 7.1.8 Clamping Correct clamping of busbars depends on the tightening torques used for the nuts and bolts,etc. Over-tightening may have the same consequences as under-tightening. 1 2 3 4 For connecting busbars to the circuit breaker, the tightening torques to be used are shown in the table below. These values are for use with copper busbars and steel nuts and bolts, class 8.8. 1 2 3 4 5 breaker terminal busbar bolt washer nut 5 C Examples Preferred tightening torque for NA1's tightening components Type of screw Application Preferred tightening torque M4 Screws for secondary terminals 11 Nm M10 Installing bolts of Air Circuit Breaker 45 Nm M12 Connection terminals 50 Nm Connected position Test position Disconnected position Drawout position 1.Both main circuit and control circuit are connected. 2.Normal application conditions 1.The main circuit is disconnected, and the control circuit is connected. 2.Test application conditions. Neither the main circuit nor the control circuit is connected. Main body is out of the drawer seat. > >> C-98 Air Circuit Breaker NA1 7.2 Wiring the secondary circuit according to electric principle diagram. Note: Bolts, nuts, gaskets shouldn't be left inside the drawer seat to avoid being blocked. 7.3 Operation Check the rated voltage of the following components whether conforms to the power voltage . Such as under voltage release, shunt release, closing electromagnet, motor-driven mechanism and intelligent controller. 7.4 Maintenance Check the technical parameters in time or add some lubricating oil, etc. This breaker structure is arranged vertically and modularized composition with each functioncell separated, which make the maintenance easy. It has compact structure, reliable operation and strong free maintenance capability. Please check the technical parameters on the nameplate in accordance with the requirements of order before installation. Secondary connecting part Arcing chamber Main body Drawer seat Handle Slideway Making the secondary circuit power, the motor-driven mechanism can store energy automatically until hearing the click and energy stored indicating on the panel. Manual energy-storage Otherwise press the storage handle for 6 times until hearing the click and the indicator display energy stored And the closing operation can be realized either by closing electromagnet or manual button. Shake with the manual energy-storage handle up and down about six times to "click". 8. Recommendation for user's connecting bus-bar Inm(A) NA1-1000 In(A) Thickness(mm) Busbar Width(mm) Number 200 400 5 5 5 6 30 30 40 1 2 2 NA1-2000 630 800 1000 NA1-3200 NA1-4000 NA1-6300 1000 1250 1600 2000 2000 2500 2900 3200 4000/3P 4000/4P 4000 5000 6300 630 800 8 5 6 8 10 12 10 8 10 10 10 10 10 10 10 50 50 60 60 60 60 60 60 100 100 100 100 120 120 120 100 100 2 2 2 2 2 2 2 3 2 2 4 4 4 4 4 10 7 8 Note: the specifications in the table is obtained as the ambient temperature of air circuit breaker is 40℃, with open installation; this is in compliance with the specification of copper busbars adopted under the heating conditions regulated in IEC/EN60947-2. 9. Power loss Inm(A) NA1-1000 Power loss (W) C-99 NA1-3200 NA1-2000 NA1-4000 NA1-6300 200 400 630 800 1000 630 800 1000 1250 1600 2000 2000 2500 3200 4000/3P 4000/4P 4000 5000 6300 Drawer type 40 101 123 110 177 110 172 268 440 530 384 600 737 Fixed type 33 85 50 78 122 200 262 200 312 307 In(A) > >> 107 94 70 476 34.4 921 - 900 575 898 1426 - - - - Air Circuit Breaker NA1 10. A2S curve 2 2 6 I t（A s×10 ） 741 341 200 190 180 170 160 150 140 130 120 110 100 90 80 70 60 50 40 30 20 10 C 20 40 60 80 100 120 Is（kA） Is: prospective symmetrical current(of an a.c. circuit) 11. Temperature compensation correction Ambient Standard IEC/EN60947-2 NA1-3200 NA1-2000 NA1-1000 temperature NA1-6300 NA1-4000 40℃ 200 400 630 800 1000 630 800 1000 1250 1600 2000 2000 2500 3200 4000 4000 5000 6300 45℃ 195 395 623 790 985 630 800 1000 1250 1600 1900 2000 2400 3000 3800 4000 5000 6000 50℃ 192 384 605 768 960 630 800 1000 1250 1500 1900 2000 2300 3000 3600 4000 5000 5600 55℃ 182 328 584 725 924 630 800 1000 1200 1500 1800 2000 2200 2800 3400 4000 4800 5400 60℃ 174 248 548 696 870 610 800 1000 1150 1300 1700 2000 2200 2800 3200 4000 4800 5200 65℃ 163 192 500 620 810 610 800 1000 1150 1300 1650 2000 2200 2600 3200 4000 4800 5100 Note: The ACB is to calibrated at 40℃, special application please refer to the table above and the curve below. 5000 4800 4600 1200 1100 Rated current （A） Rated current （A） In=1000A 1000 900 In=800A 800 700 In=630A 600 500 In=400A 400 300 In=200A 200 100 4400 4200 4000 3800 3600 3400 3200 3000 2800 2600 2400 2200 2000 1800 In=4000A In=3200A In=2500A In=2000A 40 0 40 45 50 55 60 65 1700 1600 1500 1400 1300 1200 1100 1000 900 800 700 600 500 400 In=1600A 40 In=1000A In=800A In=630A 50 60 65 70 7000 6800 6600 In=1250A 45 55 NA1-3200, NA1-4000 Rated current （A） Rated current （A） In=2000A 50 Ambient temperature（℃） Ambient temperature（℃） NA1-1000 2000 1900 1800 45 70 55 60 65 70 6400 6200 6000 5800 5600 5400 5200 5000 4800 4600 4400 4200 4000 3800 40 In=6300A In=5000A In=4000A 45 50 55 60 65 Ambient temperature（℃） Ambient temperature（℃） NA1-2000 NA1-6300 70 > >> C-100 Air Circuit Breaker NA1 12. Coordination recommendations Rated current of transformer In(A) Short circuit current of main circuit (kA) Breaking capacity of air circuit breaker for main circuit (kA) 1×250 360 9 9 2×250 360 9 9 3×250 360 9 18.5 1×315 455 11.4 11.4 2×315 455 11.4 11.4 3×315 455 11.4 22.7 1×400 578 14.4 14.4 2×400 578 14.4 14.4 3×400 578 14.4 28.8 1×500 722 18 18 2×500 722 18 18 3×500 722 18 36.1 1×630 910 22.7 22.7 2×630 910 22.7 22.7 3×630 910 22.7 44.5 1×800 1154 19.3 19.3 2×800 1154 19.3 19.3 3×800 1154 19.3 38.5 1×1000 1444 24 24 2×1000 1444 24 24 3×1000 1444 24 48.1 1×1250 1805 30 30 2×1250 1805 30 30 3×1250 1805 30 60.1 1×1600 2310 36.5 36.5 2×1600 2310 36.5 36.5 3×1600 2310 36.5 73 1×2000 2887 48.2 48.2 2×2000 2887 48.2 48.2 3×2000 2887 48.2 96.3 1×2500 3608 60 60 2×2500 3608 60 60 1×3150 4550 75.8 75.8 2×3150 4550 75.8 75.8 Capacity of transformer (kVA) & parallelly connected number C-101 > >> Air Circuit Breaker NA1 Type of air circuit breaker for main circuit Number and area of the busbar for main circuit (n×W×T) NA1-1000-400 NA1-1000-400 Breaking capacity of air circuit breaker for branch circuit (kA) 9 2×(5×30) 18.5 NA1-1000-400 27.5 NA1-1000-630 11.4 NA1-1000-630 2×(5×40) NA1-1000-630 36.1 22.7 2×(8×50) NA1-2000-1000 44.5 19.3 2×(10×60) 38.5 NA1-2000-1250 57.8 NA1-2000-1600 24 2×(12×60) 3×(10×60) 2×(10×100) NA1, NM8 48.2 NA1-3200-3200 4×(10×100) 96.3 NA1, NM8 144.5 NA1-3200-3200 NA1-6300-5000 73 109.5 NA1-3200-2500 NA1-6300-5000 NA1, NM8 36.5 NA1-3200-2500 NA1-6300-4000 60.1 90.1 NA1-2000-2000 NA1-6300-4000 NA1, NM8 30 NA1-2000-2000 NA1-3200-3200 48.1 NA1, NM8 72.1 NA1-2000-1600 NA1-3200-2500 NA1, NM8 67.2 NA1-2000-1250 NA1-2000-2000 NA1, NM8 54.1 NA1-1000-1000 NA1-2000-1600 C NA1, NM8 18 2×(6×50) NA1-1000-800 NA1-2000-1250 28.8 43.2 NA1-1000-800 NA1-1000-1000 NA1, NM8 14.4 2×(5×40) NA1-1000-630 NA1-1000-800 22.7 NA1, NM8 34.1 NA1-1000-630 NA1-1000-630 Air circuit breaker for branch circuit 4×(10×120) 7×(10×100) 60 120 75.8 151.6 NA1, NM8 NA1, NM8 > >> C-102 Air Circuit Breaker NA1 13. Selectivity protection 13.1 Selective protection between NM8 and NA1 NA1-2000 Circuit breaker Downstream Upstream Rated current (A) 400 630 800 1000 1250 Default setting ratings of short time-delay 8In (kA) 3.2 5.04 6.4 8 10 Setting range (kA) 0.4~6 0.63～9.45 0.8~12 1~15 1.25~18.75 Delayed tripping time (s) 0.1, 0.2, 0.3, 0.4 Returnable time 0.06, 0.14, 0.23, 0.35 Instantaneous Rated Frame size rated current current (A) setting ratings (kA) 16 NM8-125 NM8S-125 NM8-250 NM8S-250 C-103 > >> 0.16 0.19(motor) 0.4~6 0.63~9.45 0.8~12 1~15 1.25~18.75 0.4~6 0.63~9.45 0.8~12 1~15 1.25~18.75 1.25~18.75 0.4~6 0.63~9.45 0.8~12 1~15 0.4~6 0.63~9.45 0.8~12 1~15 1.25~18.75 20 0.2 0.24(motor) 25 0.25 0.30(motor) 32 0.32 0.38(motor) 40 0.40 0.48(motor) 50 0.50 0.60(motor) 0.69~6 0.828~6 0.4~6 0.63~9.45 0.8~12 1~15 1.25~18.75 0.414~6 0.63~9.45 0.8~12 1~15 1.25~18.75 0.4416~6 0.63~9.45 0.8~12 1~15 1.25~18.75 0.5224~6 0.63~9.45 0.8~12 1~15 1.25~18.75 0.552~6 0.63~9.45 0.8~12 1~15 1.25~18.75 0.6624~6 0.6624~9.45 0.8~12 1~15 1.25~18.75 0.69~9.45 0.8~12 1~15 1.25~18.75 0.828~9.45 0.828~12 1~15 1.25~18.75 0.8694~9.45 0.8694~12 1~15 1.25~18.75 1.25~18.75 63 0.63 0.75(motor) 0.8694~6 1.035~6 1.035~9.45 1.035~12 1.035~15 80 0.80 0.96(motor) 1.104~6 1.104~9.45 1.104~12 1.104~15 1.25~18.75 1.325~6 1.325~9.45 1.325~12 1.325~15 1.325~18.75 100 1.0 1.20(motor) 1.38~6 1.656~6 1.38~9.45 1.656~9.45 1.38~12 1.656~12 1.38~15 1.656~15 1.38~18.75 1.656~18.75 125 1.25 1.5(motor) 1.725 ~6 2.07~6 1.725~9.45 2.07~9.45 1.725~12 2.07~12 1.725~15 2.07~15 1.725~18.75 2.07~18.75 100 1.0 1.2(motor) 1.38~6 1.38~9.45 1.38~12 1.38~15 1.38~18.75 1.656~6 1.656~9.45 1.656~12 1.656~15 1.656~18.75 160 1.6 1.92(motor) 2.208~6 2.208~9.45 2.208~12 2.208~15 2.208~18.75 2.65~6 2.65~9.45 2.65~12 2.65~15 2.65~18.75 200 2.0 2.4(motor) 250 2.5 3.0(motor) 2.76~6 2.76~9.45 2.76~12 2.76~15 2.76~18.75 3.312~6 3.312~9.45 3.312~12 3.312~15 3.312~18.75 3.45~6 3.45~9.45 3.45~12 3.45~15 3.45~18.75 4.14~6 4.14~9.45 4.14~12 4.14~15 4.14~18.75 Air Circuit Breaker NA1 NA1-3200 1600 NA1-4000 NA1-6300 2000 2000 2500 3200 3200 4000 4000 5000 6300 16 16 20 25.6 25.6 32 32 40 50.4 2~30 2~30 2.5~37.7 3.2~48 3.2~48 4~60 4~60 5~75 6.3~94.5 C 0.1, 0.2, 0.3, 0.4 0.06, 0.14, 0.23, 0.35 1.6~24 2~30 2~30 2.5~37.7 3.2~48 3.2~48 4~60 4~60 5~75 6.3~94.5 1.6~24 2~30 2~30 2.5~37.7 3.2~48 3.2~48 4~60 4~60 5~75 6.3~94.5 6.3~94.5 1.6~24 2~30 2~30 2.5~37.7 3.2~48 3.2~48 4~60 4~60 5~75 1.6~24 2~30 2~30 2.5~37.7 3.2~48 3.2~48 4~60 4~60 5~75 6.3~94.5 1.6~24 2~30 2~30 2.5~37.7 3.2~48 3.2~48 4~60 4~60 5~75 6.3~94.5 1.6~24 2~30 2~30 2.5~37.7 3.2~48 3.2~48 4~60 4~60 5~75 6.3~94.5 1.6~24 2~30 2~30 2.5~37.7 3.2~48 3.2~48 4~60 4~60 5~75 6.3~94.5 1.6~24 2~30 2~30 2.5~37.7 3.2~48 3.2~48 4~60 4~60 5~75 6.3~94.5 1.6~24 2~30 2~30 2.5~37.7 3.2~48 3.2~48 4~60 4~60 5~75 6.3~94.5 1.6~24 2~30 2~30 2.5~37.7 3.2~48 3.2~48 4~60 4~60 5~75 6.3~94.5 1.6~24 2~30 2~30 2.5~37.7 3.2~48 3.2~48 4~60 4~60 5~75 6.3~94.5 1.6~24 2~30 2~30 2.5~37.7 3.2~48 3.2~48 4~60 4～60 5~75 6.3~94.5 1.6~24 2~30 2~30 2.5~37.7 3.2~48 3.2~48 4~60 4～60 5~75 6.3~94.5 1.6~24 2~30 2~30 2.5~37.7 3.2~48 3.2~48 4~60 4～60 5~75 6.3~94.5 1.6~24 2~30 2~30 2.5~37.7 3.2~48 3.2~48 4~60 4～60 5~75 6.3~94.5 1.6~24 2~30 2~30 2.5~37.7 3.2~48 3.2~48 4~60 4～60 5~75 6.3~94.5 1.6~24 1.656~24 2~30 2~30 2~30 2~30 2.5~37.7 2.5~37.7 3.2~48 3.2~48 3.2~48 3.2~48 4~60 4~60 4～60 4～60 5~75 5~75 6.3~94.5 6.3~94.5 1.725~24 2.07~24 1.725~30 2.07~30 1.725~30 2.07~30 1.725~37.7 2.07~37.7 1.725~48 2.07~48 1.725~48 2.07~48 1.725~60 2.07~60 1.725~60 2.07~60 1.725~75 2.07~75 1.725~94.5 2.07~94.5 6.3~94.5 1.6~24 2~30 2~30 2.5~37.7 3.2~48 3.2~48 4~60 4～60 5~75 1.656~24 2~30 2~30 2.5~37.7 3.2~48 3.2~48 4~60 4～60 5~75 6.3~94.5 2.208~24 2.208~30 2.208~30 2.5~37.7 3.2~48 3.2~48 4~60 4~60 5~75 6.3~94.5 2.65~24 2.65~30 2.65~30 2.65~37.7 3.2~48 3.2~48 4~60 4~60 5~75 6.3~94.5 2.76~24 2.76~30 2.76~30 2.76~37.7 3.2~48 3.2~48 4~60 4~60 5~75 6.3~94.5 3.312~24 3.312~30 3.312~30 3.312~37.7 3.312~48 3.312~48 4~60 4~60 5~75 6.3~94.5 3.45~24 3.45~30 3.45~30 3.45~37.7 3.45~48 3.45~48 4~60 4~60 5~75 6.3~94.5 4.14~24 4.14~30 4.14~30 4.14~37.7 4.14~48 4.14~48 4.14~60 4.14~60 5~75 6.3~94.5 > >> C-104 Air Circuit Breaker NA1 NA1-2000 Circuit breaker Upstream Downstream Rated current (A) 400 630 800 1000 1250 Default setting ratings of short time-delay 8In (kA) 3.2 5.04 6.4 8 10 Setting range (kA) 0.4~6 0.63～9.45 0.8~12 1~15 1.25~18.75 Delayed tripping time (s) 0.1, 0.2, 0.3, 0.4 Returnable time 0.06, 0.14, 0.23, 0.35 Instantaneous Rated Frame size rated current current (A) setting ratings (kA) NM8-630 NM8S-630 NM8S-630 NM8-1250 NM8S-1250 C-105 > >> 250 2.5 3.0(motor) 3.45~6 3.45~9.45 3.45~12 3.45~15 3.45~18.75 4.14~6 4.14~9.45 4.14~12 4.14~15 4.14~18.75 315 3.15 3.78(motor) 4.347~6 4.347~9.45 4.347~12 4.347~15 4.347~18.75 5.216~6 5.216~9.45 5.216~12 5.216~15 5.216~18.75 350 3.5 4.2(motor) 400 4.0 4.8(motor) 500 5.0 6.0(motor) 630 4.83~6 4.83~9.45 4.83~12 4.83~15 4.83~18.75 5.796~6 5.796~9.45 5.796~12 5.796~15 5.796~18.75 5.52~6 5.52~9.45 5.52~12 5.52~15 5.52~18.75 6.624~9.45 6.624~12 6.624~15 6.624~18.75 6.9~9.45 6.9~12 6.9~15 6.9~18.75 8.28~9.45 8.28~12 8.28~15 8.28~18.75 6.3 7.56(motor) 8.694~9.45 8.694~12 8.694~15 8.694~18.75 10.44~12 10.44~15 10.44~18.75 630 6.3 7.56(motor) 8.694~9.45 8.694~12 8.694~15 8.694~18.75 10.44~12 10.44~15 10.44~18.75 700 7.0 8.4(motor) 800 8.0 9.6(motor) 1000 10 12(motor) 1250 12.5 15.0(motor) 9.66~12 9.66~15 9.66~18.75 11.59~12 11.59~15 11.59~18.75 11.04~12 11.04~15 11.04~18.75 13.25~15 13.25~18.75 13.8~15 13.8~18.75 16.56~18.75 17.25~18.75 Air Circuit Breaker NA1 NA1-3200 1600 NA1-4000 NA1-6300 2000 2000 2500 3200 3200 4000 4000 5000 6300 16 16 20 25.6 25.6 32 32 40 50.4 2~30 2~30 2.5~37.7 3.2~48 3.2~48 4~60 4~60 5~75 6.3~94.5 0.1, 0.2, 0.3, 0.4 0.06, 0.14, 0.23, 0.35 C 3.45~24 3.45~30 3.45~30 3.45~37.7 3.45~48 3.45~48 4~60 4~60 5~75 6.3~94.5 4.14~24 4.14~30 4.14~30 4.14~37.7 4.14~48 4.14~48 4.14~60 4.14~60 5~75 6.3~94.5 4.347~24 4.347~30 4.347~30 4.347~37.7 4.347~48 4.347~48 4.347~60 4.347~60 5~75 6.3~94.5 5.216~24 5.216~30 5.216~30 5.216~37.7 5.216~48 5.216~48 5.216~60 5.216~60 5.216~75 6.3~94.5 6.3~94.5 4.83~24 4.83~30 4.83~30 4.83~37.7 4.83~48 4.83~48 4.83~60 4.83~60 5~75 5.796~24 5.796~30 5.796~30 5.796~37.7 5.796~48 5.796~48 5.796~60 5.796~60 5.796~75 6.3~94.5 5.52~24 5.52~30 5.52~30 5.52~37.7 5.52~48 5.52~48 5.52~60 5.52~60 5.52~75 6.3~94.5 6.624~24 6.624~30 6.624~30 6.624~37.7 6.624~48 6.624~48 6.624~60 6.624~60 6.624~75 6.624~94.5 6.9~24 6.9~30 6.9~30 6.9~37.7 6.9~48 6.9~48 6.9~60 6.9~60 6.9~75 6.9~94.5 8.28~24 8.28~30 8.28~30 8.28~37.7 8.28~48 8.28~48 8.28~60 8.28~60 8.28~75 8.28~94.5 8.694~24 8.694~30 8.694~30 8.694~37.7 8.694~48 8.694~48 8.694~60 8.694~60 8.694~75 8.694~94.5 10.44~24 10.44~30 10.44~30 10.44~37.7 10.44~48 10.44~48 10.44~60 10.44~60 10.44~75 10.44~94.5 8.694~24 8.694~30 8.694~30 8.694~37.7 8.694~48 8.694~48 8.694~60 8.694~60 8.694~75 8.694~94.5 10.44~24 10.44~30 10.44~30 10.44~37.7 10.44~48 10.44~48 10.44~60 10.44~60 10.44~75 10.44~94.5 9.66~24 9.66~30 9.66~30 9.66~37.7 9.66~48 9.66~48 9.66~60 9.66~60 9.66~75 9.66~94.5 11.59~24 11.59~30 11.59~30 11.59~37.7 11.59~48 11.59~48 11.59~60 11.59~60 11.59~75 11.59~94.5 11.04~24 11.04~30 11.04~30 11.04~37.7 11.04~48 11.04~48 11.04~60 11.04~60 11.04~75 11.04~94.5 13.25~24 13.25~30 13.25~30 13.25~37.7 13.25~48 13.25~48 13.25~60 13.25~60 13.25~75 13.25~94.5 13.8~24 13.8~30 13.8~30 13.8~37.7 13.8~48 13.8~48 13.8~60 13.8~60 13.8~75 13.8~94.5 16.56~24 16.56~30 16.56~30 16.56~37.7 16.56~48 16.56~48 16.56~60 16.56~60 16.56~75 16.56~94.5 17.25~24 17.25~30 17.25~30 17.25~37.7 17.25~48 17.25~48 17.25~60 17.25~60 17.25~75 17.25~94.5 20.7~24 20.7~30 20.7~30 20.7~37.7 20.7~48 20.7~48 20.7~60 20.7~60 20.7~75 20.7~94.5 > >> C-106 Air Circuit Breaker NA1 13.2 Selective protection in NA1 NA1-2000 Circuit breaker Upstream Downstream Frame size rated current Rated current (A) 400 630 800 1000 1250 Default setting ratings of short time-delay 8In (kA) 3.2 5.04 6.4 8 10 0.8~12 1~15 1.25~18.75 Setting range (kA) 0.4~6 0.63～9.45 Delayed tripping time (s) 0.1, 0.2, 0.3, 0.4 Returnable time 0.06, 0.14, 0.23, 0.35 Default instantaneous Rated current (A) setting ratings 12In (kA) NA1-2000 NA1-3200 NA1-4000 NA1-6300 400 4.8 630 7.56 800 9.6 1000 12 1250 15 1600 19.2 2000 24 2000 24 2500 30 3200 38.4 3200 38.4 4000 48 4000 48 5000 60 6300 75 6.348~9.45 6.348~12 6.348~15 6.348~18.75 9.998~12 9.998~15 9.998~18.75 12.696~15 12.696~18.75 Note: It can satisfy the selective protection if only the short time-delay setting value of the superior breaker 1.32 times more than the subordinate breaker, when the instantaneous setting value is adjustive. C-107 > >> 15.87~18.75 Air Circuit Breaker NA1 NA1-3200 1600 NA1-4000 NA1-6300 2000 2000 2500 3200 3200 4000 4000 5000 6300 16 16 20 25.6 25.6 32 32 40 50.4 2~30 2~30 2.5~37.7 3.2~48 3.2~48 4~60 4~60 5~75 6.3~94.5 0.1, 0.2, 0.3, 0.4 C 0.06, 0.14, 0.23, 0.35 6.348~24 6.348~30 6.348~30 6.348~37.7 6.348~48 6.348~48 6.348~60 6.348~60 6.348~75 6.348~94.5 9.998~24 9.998~30 9.998~30 9.998~37.7 9.998~48 9.998~48 9.998~60 9.998~60 9.998~75 9.998~94.5 12.696~24 12.696~30 12.696~30 12.696~37.7 12.696~48 12.696~48 12.696~60 12.696~60 12.696~75 12.696~94.5 15.87~24 15.87~30 15.87~30 15.87~37.7 15.87~48 15.87~48 15.87~60 15.87~60 15.87~75 15.87~94.5 19.837~24 19.837~30 19.837~30 19.837~37.7 19.837~48 19.837~48 19.837~60 19.837~60 19.837~75 19.837~94.5 25.392~30 25.392~30 25.392~37.7 25.392~48 25.392~48 25.392~60 25.392~60 25.392~75 25.392~94.5 31.74~37.7 31.74~48 31.74~48 31.74~60 31.74~60 31.74~75 31.74~94.5 31.74~37.7 31.74~48 31.74~48 31.74~60 31.74~60 31.74~75 31.74~94.5 39.675~48 39.675~48 39.675~60 39.675~60 39.675~75 39.675~94.5 50.784~60 50.784~60 50.784~75 50.784~94.5 50.784~60 50.784~60 50.784~75 50.784~94.5 63.48~75 63.48~94.5 63.48~75 63.48~94.5 79.35~94.5 > >> C-108 Air Circuit Breaker NA1 14. Intelligent controller 14.1 The intelligent controller of NA1-1000 a. The standard M type intelligent controller (NA1-1000) 1: Reset key 2: Rated current 3: MCU indicator( normal operation indicator) 4: Current indicator 5-Earthing fault indicator 6: Short circuit instantaneous fault indicator 7: Short circuit short time-delay fault indicator 8: Overload fault indicator 9: Time setting table 10: Current setting table 11: Overload long time-delay time setting key 12: Overload long time-delay current setting key 13: Fault cheking key 14: Short circuit short time-delay time setting key 15: Short circuit short time-delay current setting key 16: Test key 17: Short circuit instantaneous current setting key 18: Clear LED key 19: Earthing current setting key 20: Earthing time setting key 1 3 2 4 7 5 8 6 9 10 11 13 12 14 15 16 17 18 19 20 The function of keys show as followed: “Fault checking“ key: After the breaker tripping, press this key to indicate the kind of fault. “Test key” key: used for checking the controller and the action of the breaker. “Clear LED” key: After the setting,testing and fault checking of the controller, make the circuit breaker at normal operation. b. The communication H type intelligent controller(NA1-1000) 1 2 3 4 5 6 7 10 8 11 9 12 14 15 13 16 C-109 > >> 1: Reset key 2: LCD display window 3: Fault and alarm reset key 4: Curve LED indication 5: ”Fault/alarm” LED 6: ”Normal” LED 7: ”Communication” indicator 8: Test key 9: Setting key 10: Message key 11: Protection key 12: Increasing key 13: Decreasing key 14: Choosing key 15: Exit key 16: Testing port Air Circuit Breaker NA1 c. Basic functions ● stands for definite setting ■ stands for optional setting Standard (M type) Controller type Basic function Optional auxiliary function — stands for no funcion Communication (H type) Three cascades protection Four cascades protection Three cascades protection Four cascades protection Long time-delay protection ● ● ● ● Short time-delay protection ● ● ● ● Instantaneous protection ● ● ● ● Earthing fault protection — ● ● ● Load current display ● ● — — Load current digital display (Ampere Meter) — — ● ● Test function ● ● ● ● Fault recall ● ● ● ● Self-diagnose function ● ● ● ● MCR making and breaking function ● ● ● ● Fault alarm ● ● ● ● Fault breaking indication ● ● ● ● Customer setting, testing ● ● ● ● Load monitor — — — — RS485 port MODBUS protocol — — — — Voltage measuring — — — — Frequency display — — — — Active power measuring — — — — Power factor measuring — — — — Electric energy measuring — — — — Over voltage protection — — — — Under voltage protection — — — — Phase protection — — ● ● ■ (3P+N model) ■ (3P+N model) ■ ■ ■ ■ ■ ■ Current transformer earthing protection Exceed breaking function Thermal recall fuction ■ ■ ■ ■ Four output contacts ■ ■ ■ ■ Man-machine interface instruction LED display, code switch and toggle switch setting C LCD display, LED indication, keyboard operation d. Operation instructions Standard intelligent controller setting According to the panel number 9 showed, dial the switch 11,14,20 to set the time you need. According to the panel number 10 showed, dial the switch 12,15,17,19 to set the current you need. Example 1: means that overload long time-delay current is 0.9In, overload long time-delay time is 60s. Example 2: means that short circuit short time-delay current is 4In, short circuit short time-delay time is 0.4s. > >> C-110 Air Circuit Breaker NA1 Example 1 Example 2 tr Ir tsd Isd Communication intelligent controller setting and operation. It provides 4 main menu and 1 default interface. Default interface Without other function action, it displays phases current column chart. 547 A N A B C 150 100 50 0 2. “System data setting” menu 1. “Testing” menu Current I Voltage U Clock setting Harmonic wave H Measure metre setting Frequency F Testing lock Power P Communication setting Electric energe E I/O setting Press or key to return default interface. On other non-fault interface, press to skip to testing menu. Without action for several minutes, it returns to the default interface. Press or key to return default interface. On other non-fault interface, press to skip to system data setting menu. Without action for several minutes, it returns to the default interface. 4. “Historical record and maintain” menu 3. “Protection data setting” menu Current protection Present alarm Operation times Load monitor Voltage protecting Contact wearing Other protection Product information Alarm record Shift record Trip record Press or key to return default interface. On other non-fault interface, press to skip to protection data setting menu. Without action for several minutes, it returns to the default interface. C-111 > >> Press or key to return default interface.. On other non-fault interface, press to skip to testing menu. Without action for several minutes, it returns to the default interface. Air Circuit Breaker NA1 5. Submenu operation show: overload longtime-delay protection setting Long time-delay Long time-delay Long time-delay Ir=400A Ir=1000A Ir=1000A (40.0%In) (100%In) (100%In) Curve type Curve type Curve type = SI ▲ - ▲ + = SI then ▲ + ▲ - = SI Setting definite value Save definite value C Note: communication controller actual menu will change as customers' choice. e. Over current protection characteristic The characteristic of intelligent controller 10000 5000 I R =(0.4～1)In 2000 tl=(30～240)s (M type) 1000 500 200 100 50 20 10 t(a) 5 2 1 Isd=(3~10)IR(M type) or(1.5~15)In(H type) 0.4s 0.5 0.3s 0.2 ts=(0.2~0.4)s(M type) 0.2s 0.1 ts=(0.1~0.4)s(H type) 0.1s 0.05 Ii=(3~15)In+OFF(M type) or(1~20)In+OFF(H type) 0.02 0.01 .2 .3 .4 .5 .6 .8 1 2 xIn 3 4 5 6 8 10 20 30 40 50 60 70 80 100 kA > >> C-112 Air Circuit Breaker NA1 Long time-delay overcurrent protection, inverse time characteristic. Setting current (IR) Error Current Tripping time (s) 1.05IR <2h Non-trip <1h trip 1.3IR (0.4~1)In+OFF ±10% Time error 1.5IR(M) 30 60 2.0IR(M) 16.9 33.8 120 240 ±10% 67.5 135 ±10% 1.5IR(H) 0.61~86 ±10% 6.0IR(H) 0.14~19.2 ±10% Short time-delay overcurrent protection characteristic. Setting current (IR) Setting delay time (s) Error Time error ts(s) Isd M (3~10)IR+OFF ±10% H OFF+(1.5~15)IR ±10% 0.2 0.1 0.2 0.3 0.4 ±15% 0.4 ±15% Instantaneous characteristic. Type Setting current (Ii) Tripping Error M (3~15)In+OFF ≤0.85Ii 30ms Non-trip；＞1.15Ii trip ±15% H (1~20)In+OFF ≤0.85Ii 40ms Non-trip；＞1.15Ii trip ±15% Earthing fault protection characteristic Type Rated current (Ig) Error Rated delay time (Tg) M (0.2~0.8)In+OFF，min 100A ±10% 0.1, 0.2, 0.3, 0.4 ±15% H (0.2~1.0)In+OFF，min 100A ±10% (0.1~1.0)s ±15% Single phase earthing protection curre (M type) Ig=(0.2~0.8)In(M type) min 100A Ig=(0.2~1.0)In(H type) min 100A T(s) 0.05 0.06 0.08 0.1 0.2 0.3 0.4 0.5 0.6 0.8 1 2 XIn C-113 > >> 3 4 5 6 8 Time error Air Circuit Breaker NA1 Wiring diagram of the earthing fault protection. Transformer Current transformer Transformer Current transformer N Intelligent controller Intelligent controller C Transformer Current transformer Transformer Current transformer N N Intelligent controller Intelligent controller PE Load monitor characteristic. 10 ×In ×In > >> C-114 Air Circuit Breaker NA1 14.2 The intelligent controller of NA1-2000, 3200, 4000, 6300 14.2.1 The standard M type intelligent controller (NA1-2000 3P 4P; NA1-3200 3P 4P; NA1 4000 3P) The M type intelligent controller is the core part of the NA1 Air Circuit Breaker to protect the electric circuit and the power supply against the dangers such as overload, short circuit and single-phase earthing fault. The controller adopts highly-integrated and highperformance digital signal processor that featuring power functions and reliable performance to perform real-time processing to the signal so as to achieve various protection function and numerous auxiliary functions. Appearance and panel illustration Reset button Frame size rated current Rated current Ammeter display window Select key Clear key Fault indicator Protection indicator Fault checking key Function key Program interface Selectivity protection t t IL C-115 Earth fault protection > >> IS II I IG I Air Circuit Breaker NA1 a. Symbol designation table Designation Number Symbol 1 Inm Frame size rated current of breaker 2 In Rated current 3 IL(Ir1),Is(Ir2),Ii(Ir3) Action current of long time-delay, short time-delay and instantaneous 4 IG(Ir4) Action current of earth fault or phase N 5 tL,ts,tG Action time of long time-delay, short time-delay and grounding 6 L1,L2,L3,G Phase A, B, C and N (or earth) 7 Ic1,Ic2 Action current of load monitor 1 and load monitor 2 8 T,I Time, current 9 A,kA,s Unit Indicator: Ampere, kilo-Ampere, second b.Operating power supply The operating power supply input to the intelligent controller: AC 400V/380V, 230V/220V, AC 110V, 50Hz; DC220V, 110V, 24V. c. Basic functions of intelligent controller Main protection function Query function Parameter setting function Test function Load monitor function (optional) Making current release (MCR) and High-Set Instantaneous Short Circuit (HSISC) function (optional) Signal alarm function (optional) d. Operation instructions Parameter setting operation Step 1: Setting right confirmation. The key must be switched to ”setting” position for type H. This step is no necessary for type M. Step 2: Make sure the controller is under reset status. If the controller isn't under reset status, press ”reset” key till the ammeter displays operation current. Note: When the controller is under malfunction alarm status, then the setup function is locked and the setup operation can't be conducted. Step 3: Press “set” key till the ammeter display window displays required action current or time setting. Step 4: Press ”+” and ”-” to set the items to be changed. Step 5: Press “save” key. At that time, the “save“ indicator will flash once to indicate that the parameters are saved. If not desiring to save, then directly press “reset” key. Then the parameters won't be changed and will remain the original values. C Step 6: Repeat step 3 ~ step 5 in case requiring changing other parameters. If not, press “reset” key till the characteristic curve indicator is off. Note: In case of occurrence of malfunction under setup status, it will automatically exit the setup status and enter into malfunction status. During the adjustment of the parameters, the longer the time of pressing or holding the “+” or “-” key is, the faster the up or down speed is. Failure inquiry operation Query operation method Step 1: Make sure the controller is under reset status. Step 2: Press “fault display” key till the ammeter display window indicates the failure action value and the action time alternately. Press “select” to inquiry relevant parameters. Step 3: Press “reset” key to exit the inquiry status. Test operation method Step 1: Make sure the controller is under reset status. Step 2: Press “set” key till the indicator of the short time-delay characteristic curve current is on. Press “+””-” to adjust the required current. Press “trip” key, then the breaker will trip. The ammeter display window will display the action current and action time in turn. Step 3: Press “reset” key to exit the test status. > >> C-116 Air Circuit Breaker NA1 e. Characteristic Over-current protection characteristic curve figure 10000 5000 Ir1=(0.4～1)In 2000 Tr=(15~480)s 1000 500 200 100 50 20 10 t(a) 5 2 1 Ir2=(1.0~15)Ir1 0.5 0.4s 0.3s 0.2 I 2t OFF 0.1 0.2s 0.1s 0.05 Ir3=1.0In～50kA/75kA/100kA 0.02 0.01 .2 .3 .4 .5 .6 .8 1 2 xIn 3 4 5 6 8 10 20 30 40 50 60 70 80 100 kA Overload long time-delay protection Current Ratings Range(lr1) (0.4~1) In Error ±10% Current Action Time ≤1.05Ir1 ＜2h Non-trip ＞1.30Ir1 ＜1h trip Time Error 1.51Ir1(setting time) 15 30 60 120 240 480 ±10% 2.0Ir1 8.4 16.9 33.7 67.5 135 270 ±10% Phase N Overload and Over-Current Characteristic 100% or 50% (Applicable to 3P+N or 4P) Short-circuit short-delay protection Current Ratings Range(lr2) Error NA1-2000 1.3Ir1~15Ir1+OFF (OFF Position) NA1-3200 1.3Ir1~15Ir1+OFF (OFF Position), Ir2≤40KA ±10% NA1-6300 1.3Ir1~15Ir1+OFF (OFF Position), Ir2≤50KA Current Action Time ≤0.9Ir2 Non-trip ＞1.10Ir2 Delayed-trip Time Error Time setting (ts) 0.1 0.2 0.3 0.4 ±25% Returnable Time 0.06 014 0.19 0.25 ±25% Short circuit instantaneous protection Current Ratings Range(lr3) Error NA1-2000 1.3In~50kA NA1-3200 1.3In~65kA NA1-6300 1.3In~75kA C-117 > >> Current Action Characteristic ≤0.85Ir3 Non-trip ＞1.15Ir3 trip ±15% Air Circuit Breaker NA1 f. Earth fault protection The earth fault protection has definite time-delay characteristic with the failure delayed time no less than the definite time-delay time setting. Earth fault Protection Characteristic Curve 1000 500 100 C 50 20 Ir4=(0.2~0.8)In 10 t(s) 5 2 1 0.5 0.2 0.4s 0.3s 0.2s 0.4s 0.3s 0.2s 0.1 0.1s 0.1s 0.05 0.02 0.01 .05 .06 .08 .1 .2 .3 .4 .5 .6 .8 1 xIn 2 3 4 5 6 8 10 20 30 Single phase earth fault protection technical data: Current Ratings Range(lr4) (0.2~0.8)ln +OFF (OFF position) (NA1-2000, min160A) Error ±10% Current Action Time ≤0.8 lr4 Non-tripping Time Error Tripping >1.0 lr4 Setting time (Tg) 0.1 0.2 0.3 0.4 ±25% Returnable time 0.06 014 0.19 0.25 ±25% > >> C-118 Air Circuit Breaker NA1 14.3 NA1 Multifunctional Intelligent Controller a. Menu Operation Explanation Display operation kneading board 7 7 1 1 2 3 4 2 3 4 5 6 6 16 16 1: LCD interface display 2: fault and warning Reset 3: fault/warning LED The LED will not flash when it works normally; the red LED will flash fast when tripping at fault; the red LED will on when warning occurs. 4: “normal” LED The green LED will always flash if only the ST40-3 is powered and works stably. 5: communication indicating lamp The communication condition is indicating as follows: Profibus: off when no communication; on when communication. Modbus: off when no communication; flash when communication. Device Net: Flash when no communication, on when communication. 6: curve LED There is the red LED indicating lamp hiding in the curve. The corresponding LED lamp will flash to indicate the fault type when tripping at fault. The LED is on to indicate the project set at the moment when protective parameter is set. 7: machinery reset button The button will spring when fault trips or test trips. When not press down, the circuit breaker are not allowed to shut off. When press down, fault indication will be reset at the same time. C-119 > >> Air Circuit Breaker NA1 8 12 9 10 13 8: Measure— function key 1, switch to measure default theme menu (the key in the password input interface is “left”) 9: Set— function key 2, switch to parameter set theme menu (the key in the password input interface is “right”) 10: protection—function key 3, switch to protection parameter set theme menu. 11: Information—function key 4, switch to history and maintenance theme menu. 12: Up—up to move the menu content under the current used grade, or up to change the chose parameter. 13: Down—down to move the menu content under the current used grade, or down to change the chose parameter. 14: Escape—to escape from this grade and return to upper menu; or cancel the current parameter selected. 15: Select—enter into the next menu directed by the current item, or for the current parameter selected and store modifications. 16: Test port—The bottom of the front board has a 16 pin test port, which can insert a inserted portable power supply or inspection unit. 11 14 15 Earth fault/residual current protection Selective protection t t 0 0 I I b. Panorama of intelligent controllers for NA1 series Type Rated current (A) NA1-2000 630 800 1000 1250 1600 2000 NA1-3200 2000 2500 3200 NA1-6300 Number of poles 3P, 4P 4000 5000 6300 3P M 3M 3H Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes > >> C-120 C Air Circuit Breaker NA1 c. NA1 Multifunctional Intelligent Controller subject menu NA1 Multifunctional Intelligent controller has provided 4 subject menu and 1 default interface 2. “measure” menu 1. Default interface 452 A 150 A B 3H C N current I 100 voltage U 50 frequency F 0 3H energy ·The controller displays the default interface when on electiicity. ·Under each subject menu, press or the corresponding subject key can return to default interface. ·If don't press any keys in 5 minutes and then the pane cursor will show the maximum phase automatically. ·In the non-activated fault interface, if don't press any key in 30 minutes and then will automatically return to the default interface. E power P harmonic H ·press to enter into measure main menu ·press or to return to default interface ·In other non-fault interface, press to jump to measure menu 3. “system parameter set”menu 3H clock set measurement meter set test & clock 3H communication set 4. “protection parameter set”menu 3H current protection load monitor voltage protection 3H other protection I/O set ·Press or to return to default interface ·In other non-fault interface, press to jump to system parameter set menu C-121 > >> ·Press or to return to default interface ·In other non-fault interface, press to jump to protection parameter set menu Air Circuit Breaker NA1 5. “history and maintenance”menu 3H 3H 3H current warning production information operating time release record contact wearout warning record Variable-record ·Press or to return to default interface ·In other non-fault interface, press to jump to history and maintenance menu C 6. Sub-menu operation example: overload long delay protection set Ir =10 00 A =40.4 %In curve type =VI ▲ - ▲ + then adjust Ir 1200 A =48.0 %In curve type =VI ▲ - ▲ + fixed value Ir =1200 A =48.0 %In curve type =VI save fixed value d. Instruction to technical property 5000 2000 1000 500 200 100 Express inverse-time 1 (Ordinary use) Express inverse-time 2 (Motor protection) Express inverse-time 50 Standard inverse-time 20 10 t(s) High-voltage fuse compatibility 5 2 1 0.5 0.2 0.1 0.05 0.02 0.01 0.3 0.4 0.5 0.6 0.8 1 2 Xin1 3 4 5 6 8 10 20 > >> C-122 Air Circuit Breaker NA1 Function of intelligent controller ● stands for definite setting ■ stands for optional setting — stands for no funcion Type Function configuration M 3M 3H Current display function ● ● ● Overload long time delay protection(inverse) ● ● ● Short circuit short time delay protection(inverse and definite) ● ● ● Short circuit instantaneous protection ● ● ● Single-phase earthing fault protection ● ● ● Current imbalance protection caused by phase failure ● ● ● Parameter setting function ● ● ● Test(simulate trip）function ● ● ● Inquiry function ● ● ● Self-diagnose function — ● ● Programing interface function — — — Communication function — — ● Contact abrasion extent record — ● ● Operating times record — ● ● Clock function — ● ● Alarm record — ● ● Position (making, energy storage or breaking) change record — ● ● The history current peak value record — ● ● MCR(Making current release) and HSISC(High-setting instantaneous short circuit) — ● ● Current leakage protection(inverse and definite) — ■ ■ Neutral (N phase) protection — ● ● Load monitor function (Modes 1 and Modes 2) — ■ ● Voltage measurement display function — ■ ● Frequency measurement display function — ■ ● Voltage imbalance measurement display function — ■ ● Power measurement display function — ■ ● Power factor measurement display function — ■ ● Electrical energy measurement display function — ■ ● Fault clock function — ■ ■ History data record function — ■ ■ Phase sequence checking — ■ ■ Average value in a certain period of time measurement function (current and power) — ■ ■ Humorous-wave measurement — ■ ■ Over-voltage protection — ■ ■ Under-voltage protection — ■ ■ Voltage imbalance protection — ■ ■ Over-frequency protection — ■ ■ Under-frequency protection — ■ ■ Phase sequence protection — ■ ■ Inverse power potection — ■ ■ Position lock function — — — C-123 > >> Air Circuit Breaker NA1 e. Overload long time-delay protection ■Power distribution or motor protection (0.4~1.0)In + OFF (Exit position) Ir1= Setting current I≤1.05Ir1 without actions in 2h Acting property Inverse-time (s) (Corresponding 2Ir1) I＞1.3Ir1 with actions while it's less than 1h Property curve Curve 1~curve 5, could be rectified, rectified as curve 3 for ex-factory Curve speed IEC255 standard, 80 level points totally, could be rectified Precision ±10% (intrinsic 40ms) Note: When N-phase is 50%, protective settings are treated as 50% for N-phase. If long delay setting is 2000A, long delay setting for phase A, B and C is 2000A, and 1000A for phase N. C f. Instruction to short time-delay property (1.5~15) Ir1 + OFF (exit position) Ir2= Setting current ≤0.9Ir2 without actions Acting property ＞1.1Ir2 delay action Inverse-time delay (s) Ts= (0.1~0.4)s (0.1s level error) (Corresponding 2Ir1) Precision ±10% (intrinsic 40ms) Inverse-time property Curve is the same as overload long delay, but curve speed is 10 times faster Short delay inverse-time thermal memory (15min) Standard + OFF Note: When controller is frame I (Inm=2000A), rectified value of short time-delay protection is 1.5 Ir1~15 Ir1; when controller is frame II (Inm=3200A, 4000A), rectified value of short time-delay protection is 1.5 Ir1~15 Ir1 and max is 40kA; When controller is frame III (Inm=6300A), rectified value of short time-delay protection is 1.5 Ir1~15 Ir1 and max is 50kA. g. Instruction to short circuit instantaneous property 1.01n~50kA/65kA/75kA+OFF (Exit position) Ir3= Setting current ≤0.85Ir3 without actions Acting property ＞1.15Ir3 with actions Note: When controller is frame I (Inm=2000A), rectified value of instantaneous protection is 1.0In~50kA+OFF; when controller is frameII (Inm=3200A), rectified value of instantaneous protection is 1.0In~65kA+OFF; When controller is frame III (Inm=6300A), rectified value of instantaneous protection is 1.01n~75kA+OFF. h. Earth fault or residual current protective property: t=TG×KG×If /I ■Earth fault protection If= Setting current Acting property (0.2~0.8)In + OFF (with 160A as the minimum and 1200A as the maximum. OFF means it only alarms without tripping) ＜0.8If without actions ≥1.0 If delayed action ■Earth fault protection TG = Inverse-time (s) (Corresponding 2Ir1) Setting current Delay (s) Inverse-time cutting coefficient KG (0.1~1.0)s + OFF (Level difference 0.1s, OFF means it only alarms without tripping.) (1.5~6)s+OFF (Level difference 0.5, OFF means earth fault is definite-time) Precision ±10% (intrinsic 40ms) If= (0.1~1.0)Io + OFF (Level different 0.01A, OFF means exit position) Acting property ＜0.8If without actions ≥1.0 If delayed action Property curve Curve 1~curve 5, could be rectified, rectified as curve 3 for ex-factory TG = (1.5~6)s + OFF (Level difference 0.5s, OFF means is definite-time) Precision ±15% > >> C-124 Air Circuit Breaker NA1 Wiring diagram of earth fault protection 4PT type 3PT type CT (3P+N) T method CT L1 L2 L3 CT L1 L2 L3 N PE PEN L1 L2 L3 intelligent controller intelligent intelligent controller N PE controller externally connected zero sequence current inductor type 1 applied(ZCT) externally connected zero sequence current inductor type 2 applied(ZCT) ZCT CT externally connected zero sequence current inductor type 3 applied(ZCT) ZCT CT L1 CT L1 L1 L2 L2 L2 L3 L3 L3 N N PEN PE intelligent intelligent ZT100 intelligent controller controller controller PE or PEN I. Load monitor protection property load type method 1 property curve 10000 load monitor type 2 property curve 10000 5000 5000 Ir1=(0.4~1)In Ic1=(0.2~1)In 2000 Ir1=(0.4~1)In Ic1=(0.2~1)In 2000 Ic2=(0.2~1)In Ic2=(0.2~1)In 1000 1000 500 500 200 200 100 100 50 50 t1=(15~480)S 20 10 t(a) tr2=60s tr2=1/4tL 10 5 t(a) 5 2 2 1 1 0.5 0.5 tr1=1/2tL 0.2 0.2 0.05 0.05 0.02 0.02 30 0.01 0.01 0.02 0.03 .1 .2 .3 .4 .5 .6 xIn C-125 t1=(15~480)S 20 Tr1=(1/2)tL Tr2=(1/4)tL > >> .8 1 2 3 4 5 6 8 10 20 0.01 0.010.02 0.03.1 .2 .3 .4 .5 .6 xIn .8 1 2 3 4 5 6 8 10 20 30 Air Circuit Breaker NA1 Technical parameter: ■Load monitor type 1 (0.2~1.0)In + OFF (OFF means exit position) IC1= Rectified current ≤1.05Ic1 without action Acting property Inverse-time (s) Rectified current ＞1.21c1 delay relay action Property curve The same as overload long delay Curve speed Could be set separately (Setting content is the same as that of overload long delay) Ic2= (0.2~1.0)In + OFF (OFF means exit position) ≤1.05Ic2 without action Acting property ＞1.21c2 delayed relay Maximal inverse- Property curve The same as overload long delay time delay (s) Curve speed Could be set separately (Setting content is the same as that of overload long delay) Ic1= (0.2~1.0)In + OFF (OFF means exit position) ■Load monitor type 2 Rectified current ≤1.05Ic1 without action Acting property Inverse-time (s) Rectified current ＞1.21c1 delay relay action Property curve The same as overload long delay Curve speed Could be set separately (Setting content is the same as that of overload long delay) Ic2= (0.2~1.0)In + OFF (OFF means exit position) Acting property ≤0.9Ic2 without action Fixed delay (s) Fixed as 60s Precision ±10% (Intrinsic 40ms) Thermal memory (30min, could be eliminated while power-off) Standard + OFF j. Protective property on unbalance current 40%~100% + OFF (Level difference 0.1, OFF means exit) δ= Rectified current Action or alarm property Delay time (s) ≤0.9δ without actions ＞1.1δ delay action (0.1~1.0)s (Level difference 0.1, OFF means exit) Tδ= ±10% (Intrinsic 40ms) Precision k. Communication networking Make key-lock at “communication” position, connect to # # secondary terminals “10 ” and “11 ” through cable to achiveve the communication function. Profibus-DP protocal networking Modbus protocol networking Rt Rt RS232 CP5×11Main station card r RS485 Converter NA1 NA1 ST-DP ST-DP ST-DP NA1 NA1 RS485 NA1 NA1 Monitor host Monitor host Communication connection diagram (Modbus protocol) Communication connection diagram (Profibus-DP protocol) > >> C-126 C Air Circuit Breaker NA1 15. Accessories 15.1 Under-voltage release Without power supply, under-voltage release can't close. It is classified into instantaneous and time-delay type. Delay time 0, 1s, 2s, 3s, 4s, 5s, 6s, 7s are fixed for NA1-1000; 1s, 3s, 5s are fixed for NA1-2000, 3200, 4000, 6300. Within 1/2 time-delay range, circuit breaker does not trip when power voltage recovers and exceeds 85%Ue. Characteristic Type NA1-2000, 3200, 4000, 6300 NA1-1000 Rated control power voltage Us(V) AC230, 400 AC400, 230, 127 Action voltage(V) (0.35-0.7)Us Reliable making voltage(V) (0.85-1.1)Us Reliable non-making voltage(V) DC220, 110 ≤0.35Us 48VA 20VA Power loss(W) Optional configure: Auto suction type under-voltage release, and this device can substitute normal one, it can prvent mechanism form misoperation. Make sure there is power supply on the under-voltage release, before making the circuit breaker. 15.2 Shunt release Shunt release can realize the remote control to break the circuit breaker. Characteristic Type NA1-2000, 3200, 4000, 6300 NA1-1000 Rated control power voltage Us(V) AC230, 400 AC400, 230, 127 DC220, 110 Work voltage DC220, 110 (0.7-1.1)Us 56VA Power loss Breaking time 250W 300VA 75W 134W (30~50)ms (50±10)ms Forbid making the power for long time to avoid the shunt release being damaged. 15.3 Closing electromagnet After the motor finishing the energy storage, closing release can instantly close the circuit breaker. Characteristic Type NA1-2000, 3200, 4000, 6300 NA1-1000 Rated control power voltage Us(V) AC230, 400 DC220, 110 Work voltage (V) Power loss (W) Closing time AC400, 230, 127 56VA 250W (50±10)ms Forbid making the power for long time to avoid the closing release being damaged. C-127 > >> DC220, 110 (0.85-1.1)Us 300VA ≤70ms 134W 75W Air Circuit Breaker NA1 15.4 Motor-driven energy-storage mechanism With the function of motor-driven energy storing and auto restoring energy after closing the circuit breaker, the mechanism can ensure closing the circuit breaker instantly after breaking the circuit breaker. Manual energy-store is available. Characteristic Type Rated control power voltage Us(V) C NA1-2000, 3200, 4000, 6300 NA1-1000 AC230, 400 DC220, 110 Power loss (W) 75VA 75W Energy-storage time <4s Work voltage (V) AC400, 230, 127 DC220, 110 85/110/150W 192W (0.85-1.1)Us <5s No more than 3 times per minute Operation frequency 15.5 Auxiliary contact NO Standard model: 4NO(normal open)/4NC(normal close) and 6NC(normal close). Characteristic Type Rated voltage (V) conventional free-air thermal current Ith (A) Rated control capacity NA1-1000 AC230 AC400 NA1-2000~6300 DC220 AC230 AC400 DC220 6 6 0.5 6 6 6 300VA 100VA 60W 300VA 300VA 60W 15.6 Doorcase Installed on the door of the distribution cubicle, for sealing the distribution cubicle and making the protection class to IP40( fixed type and drawout type). 15.7 Phases barrier Installed between the busbars to increase the creepage distance. 15.8 Operation pushbutton lock Used for locking the break pushbutton and the close pushbutton. ( Padlock is prepared by users) 15.9 Transparent shield (NA1-2000) Installed on the doorcase of the cubicle's small door, make the protection class to IP54. It is suitable for the fixed, drawout type circuit breaker and the load switch. > >> C-128 Air Circuit Breaker NA1 15.10 Off position locking mechanism When the circuit breaker is disconnected, padlock can be used to lock it after pulling out the lock lever, then the circuit breaker can't be “Test” or “connected” position.( Padlock is prepared by users) 15.11 Key lock Lock the circuit breaker on the OFF position, then the circuit breaker can't be closed. Locks and keys will be provided by us. Separate lock and key is matched with one set of the circuit breaker. Three same locks and two same keys are matched with three circuit breaker. Note: Before pulling out the key, the break pushbutton should be pressed first, rotate the key anticlockwise, then pull it out. ★ NA1Install the locking system 1. Components of the locking system: lock key washer 2. Installation sequence: 1. Boring here, and polish the hole hole make it smooth 2. Put the the hole into 3. Install the lock here 4. Push the red button “ON”, and take the key out, then install the cover. 15.12 Cable mechanical interlock It can realize the interlock of two horizontal or vertical-installed, three poles or four poles , drawout type or fixed type circuit breaker. a. If need bend the cable, make sure the radian is more than 120°. b. Check and make sure enough lubricating oil of the cable. c. The maximal distance between two interlock circuit breaker is 2m. 2m(max) Circuit diagram 1QF 2QF Available running manner 1QF 0 2QF 0 0 1 1 0 Notes: a. when the steel cable needs to be bent, enough transition arc should be reserved to guarantee flexible movement of steel cable; b. check the steel cable and make sure there is enough lubricant in the steel cable to guarantee flexible movement of steel cable. C-129 > >> Air Circuit Breaker NA1 15.13 Connecting-rod type mechanical interlock Three vertical-installed three-poles or four-poles, drawout-type or fixed type circuit breakers realize the interlock between one breaker with another two different-state breakers. Circuit diagram Available running manner Manner 1: three power supplies are provided for one circuit breaker only 1QF 2QF 1QF 0 0 2QF 0 1 1 0 C 15.14 Drawer base misplug-proof device (NA1-1000) Only the matched circuit breaker body could inserted to the drawer base. When not matched, it can't be inserted. Bracket 2 Nameplate Bracket 1 Body Drawout base Match Mis-match Mis-match > >> C-130 Air Circuit Breaker NA1 16. Regular malfunction and solutions Fault description Reasons analysis Maintenance method Over load tripping (IL indicator flashing) 1. 2. 3. 4. Check the breaking current value and operation time of intelligent release. Analyze the load and electric network, exclude the overload if it happens. Match the actual operating current with long time-delay current setting value. Press the reset button to reclose the breaker Short circuit tripping (“Is”or“Ii”indicator flashing) 1. 2. 3. 4. 5. Check the breaking current value and operation time of intelligent release. Exclude the short circuit fault if it happens Check the setting value of intelligent release Check the normal state of breaker Press the reset button to reclose the breaker Earthing fault tripping (IG indicator flashing) 1. 2. 3. 4. Check the breaking current value and acting time of intelligent release. Exclude the earthing fault if that happens. Match the fault current setting value with the actual protection. Press the reset button to reclose the breaker. Under-voltage release fault: 1. Rated working voltage is less than 70%Ue 2. Fault of control unit 1.Check the power is on or not 2.Check the power voltage of under-voltage release, it shouldn't be less than 85%Ue. 3.Replace the control unit of under-voltage release Mechanical interlock acting Check the working state of two circuit breakers fixed with mechanical interlock Intelligent release don't reset (panel is raised) Press the reset button to reclose the breaker Secondary circuit of drawerouttype breaker isn't connected Make the breaker to "making" position ("click" sound will be heard) Breaker hasn't stored energy Check the secondary circuit: 1. Power voltage of motor shouldn't less than 85%Ue. 2. Check the storage mechanism, replace it if necessary. Mechanical interlock acting leads to locking of breaker Check the working state of two circuit breakers fixed with mechanical interlock Closing electromagnet: 1.Rated control voltage is less than 85%Us; 2.Closing electromagnet is damaged 1. Power voltage of closing electromagnet shouldn't less than 85%Us. 2. Replace the electromagnet. Tripping immediately: 1. Short circuit current is closed 2.Delay tripping because of transient current is high when closing; 3. Overload current is closed 1. 2. 3. 4. 5. 6. The breaker can't be opened manually 1. There is fault with mechanical operating mechanism 1. Check the mechanism, if there is fault happened. The breaker can't be opened by motor remotely 1. There is fault with mechanical operating mechanism 2. Power voltage of shunt release is less than 70%Us; 3. Shunt release is damaged 1. Check the mechanism, if there is fault happened. 2. Check the Power voltage of shunt release is less than 70%Us or not 3. Replace shunt release Tripping of circuit breaker The breaker can't be closed The breaker can't be closed Tripping after closing the circuit breaker (Fault indicator flashing) Circuit breaker can't be opened C-131 > >> Check the breaking current value and operation time of intelligent release; Exclude the short circuit fault if it happens; Exclude overload fault Check the normal state of breaker Modify the current setting value of intelligent release Press the reset button to reclose the breaker Air Circuit Breaker NA1 Reasons analysis Maintenance method Manual storage can't be realized Mechanical fault with the energy-storage device Motor storage can't be realized 1.Power voltage of motor energy-stored device is less than 85%Us; 2.There is mechanical fault with energy-storage device 1. Power voltage of motor energy-stored device shouldn't less than 85%Us 2. Mechanical fault with the energy-storage device Handle of drawerouttype circuit breaker can't be drawn in or out 1. There is padlock at the "opening" position 2. Slideway or breaker body isn't pulled into its position 1.Take away the padlock 2.Pull the slideway or breaker body into its position Drawerout-type breaker can't be drawn out at the "opening" position 1.Handle isn't pulled out 2.Breaker is not totally at the “opening" position 1.Pull out the handle 2.Keep the circuit breaker totally at “opening” position Drawerout-type breaker can't reach the "making" position 1. Something drop into the drawer base, and lock the mechanism or mechanism fault happens. 2. Breaker body not match with the frame-size rated current of drawer base 1. Check and clean the drawer base, or contact with manufacturer 2. Match the body with relevant drawer base 1. Release isn't connected with power 2.There is fault with release 1.Check the power is connected or not 2.Cut off the power, then connect again. Otherwise contact with manufacturer Closing electromagnet: 1. Rated control voltage is less than 85%Us; 2. Electromagnet is damaged 1. Check the electromagnet power voltage shouldn't be less than 85%Us. 2. Replace the closing electromagnet. Fault happened with intelligent release Cut off the power, then connect again. Otherwise contact with manufacturer Fault description Circuit breaker can't store energy No display on intelligent release panel Fault indicator still flashing after pressing the clear button > >> C C-132 Air Circuit Breaker NA1 NA1-1000 Orde sheet Customer: Tel: Date: Quantity: NA1-1000 Model Rated current In ( A ) □ 200 □ 4 00 □ 63 0 □ 8 00 □ 10 00 Installation mode □ Drawerout type □ Fixed type Number of poles □ Three poles □ Four poles Conventional setting before delivery: IR=1In, 30s, Isd=8In, Tsd 0.4s; Ii=12In; Ig=OFF tg=0.4s Long time-delay protection IR Short circuit short timedelay protection Isd □Standard In (0.4, 0.5, 0.6, 0.7, 0.8, 0.9, 1, OFF) Time setting: Current setting: s (30, 60, 120, 240) IR (3, 4, 5, 6, 7, 8, 10,OFF) Time setting: Short circuit instantaneous protection Ii M type Current setting: s (0.2, 0.4) Current setting: In (3, 4, 6, 8, 10, 12, 15, OFF) Current setting: Earthing protection Ig In (0.2, 0.3, 0.4, 0.5, 0.6, 0.7, 0.8, OFF Min100A) Time setting: s (0.2, 0.4, 0.6, 0.8) Protection data setting: LED display; Test function; Fault recall; Self-diagnose function; MCR and HSISC function; Fault breaking indication Intelligent controller Optional function □ Exceed skipping function □ Self-diagnose alarm □ Overload alarm □ Earthing fault alarm □ Fault breaking alarm Conventional setting before delivery: IR=1In, 17.2s,; Is=6IR, Isd=8IR; Tsd 0.4s; Ii=12In; Ig=OFF tg=0.4s Current setting:(0.4~1)In Long time-delay protection IR □Communication H type Time setting(1.5In): 0.61, 0.98, 1.47, 2.46, 3.68, 4.91, 6.14, 8.29, 11.1, 17.2, 24.6, 36.8, 49.1, 61.4, 73.7, 86s Short circuit short timedelay protection Isd Current setting: (1.5~15)IR + OFF Instantaneous protection Ii Current setting: (1.0~20)In+OFF Time setting: (0.1~0.4)s Current setting: (0.2~1.0) In Earthing protection Ig Time setting: (0.1~1)s LCD display; Code switch and toggle switch; Fault recall; Self-diagnose function; LED indication; Clock Peak current recall;Test function: Earthing current measuring; Thermal recall fuction; Earthing fault alarm; Phase protection; unbalanced current protection; MCR making and breaking function; Fault recall; Optional function □ Modbus communication Other Power of controller: □ AC400V □ Display of power □ Profibus-DP communication □ Display of voltage □ Display of frequency □ Over voltage/under voltage protection □ Phases protection □ AC230V Under-voltage release: □ Instantaneous □ DC220V □ delay □ DC110V □ DC24V s(Delay of RC under-voltage release: (1~7)s ) □ AC400V □ AC230V Shunt release: □ AC400V □ AC230V □ DC220V □ DC110V Electrical accessories Closing electromagnet: □ AC400V □ AC230V □ DC220V □ DC110V Motor for breaker: □ AC400V □ AC230V □ DC220V □ DC110V Auxiliary contact: □ 2NO(normal open)and 2NC(normal close) □ 3NO(ornmal open)and 3NC(normal close) Busbar □ Horizontal Connection □ Vertical Connection Special requireme nts □ Phases barrier □ Steel cable interlocking □ Off position locking device Note: 1) Please mark “√” or fill figure in the relative ”□” if no mark, we will provide according to conventional. NA1-1000 C-133 > >> Air Circuit Breaker NA1 NA1-2000~6300 Orde sheet Customer: Tel: Date: Quantity: Model NA1-2000 NA1-3200 NA1-4000 Rated current □630 □800□1000 □2000 □2500 (In)A □1250 □1600 □2000 □3200 Installation mode □Drawerout type □Fixed type (note: =In 4000A fixed type is not available) Number of poles □Three poles □Four poles □4000 Protection function □M-typ e sta ndard typ e (default Intelligent controller configuration) □H-type Communicationtype (optional) Explanation: Available set range of protection function and conventional setting before delivery 1. □Ir1 protection for overload long time-delay, Ir2 inverse-time protection + definite time-delay protection for short-circuit short time-delay, Ir3 instantaneous protection for short-circuit, Ir4 4-section protection for single-phrase earthing. 2. □Ir1 protection for overload long time-delay, Ir2 definite time-delay protection for short-circuit short time-delay, Ir3 instantaneous protection for short-circuit, Ir4 4-section protection for single-phrase earthing. 1. Ir1 protection for overload long time-delay, Ir2 definite time-delay protection for short-circuit short-delay, Ir3 instantaneous protection for short-circuit, 4-section protection for single-phrase earthing. 2. Ir1 protection for overload long time-delay, Ir2 inverse-time protection + definite time-delay protection for short-circuit short time-delay, Ir3 instantaneous protection for short-circuit, 4-section protection for single-phrase earthing. NA1-6300 □4000□5000 □6300(only 3 poles) Others functions Optional function 1. Function of current meter 2. Function of self-diagnosis 3. Function of setting 4. Function of test 5. Function of display □ Display of voltage □ Display of frequency □ Display of power factor □ Display of power □ Function of monitoring load ! Not items to be selected necessarily, cost of the increased will be calculated additionally Available set range of Ir1 long-delay current:（0.4~1）In ！Conventional setting before delivery: overload long time-delay: 1.0In Available set range of operating time with overload 1.5In: 15, 30, 60......480s ！Conventional setting before delivery: overload 1.5In, operating 15s ! Conventional setting before delivery: short time-delay current 8Ir1 Available set range of current of Ir2 short-delay; Operating time of short-delay: 0.1~0.4s ! Conventional setting before delivery: operating time of short time-delay: 0.4s 0.1~0.4s Available set range of Ir3 instantaneous current : 1.0 In~50kA/75kA/100kA ! Conventional setting before delivery: 12In Available set scope of Ir4 earthing protection current: 0.2~0.8 In; Available set scope of operating time of earthing protection: 0.1~0.4s Special requirements Electrical accessories ! Conventional setting before ex-factory: 0.5 In;OFF (Optional) Power supply of controller Under-voltage release (default configuration) Shunt release (default configuration) □Instantaneous □AC380V, □AC220V, □DC220V, □DC110V (Optional) Motor (default configuration) □AC380V, □AC220V, □DC220V, □DC110V (Optional) Interlocking device (cost will be calculated additionally) □ Connecting-rod interlocking (only provided for drawer-type) □ Steel cable interlocking :( for both types of drawer-type and fixed-type) □ Button lock □ Key lock: ( for both types of drawer-type and fixed-type) □ Door interlock (open or closed position) □ Door interlock（status of ON/OFF） □AC380V, □AC220V, □DC220V, □DC110V □AC380V, □AC220V, □DC220V, □customize □Delay Others functions (cost will be calculated additionally) V (Optional) s; □ Time delay of R-C (Resistance-Capacity) type Undser-voltage release: (1~5)s (Optional) (Optional) □ Function of earthing protection with external mutual-inductor (Mutual-inductor is prepared by the user) Connection of main circuit □ Explanation of vertical connection (prepared with vertical bus-bar): conventional supply is horizontal connection □ Revolving bus-bar (Drawerout type In≤3200) (cost of the increased will be burden by the user) Remark: Current of frame size, rated current, and auxiliary control voltage must be indicated when ordering Note: 1) Please mark “√”or fill figure in the relative“□”if no mark, we will provide according to conventional factory settings. 2) For ordering products with optional function or special requirements, please contact with us. NA1-6300 NA1-4000 NA1-3200 NA1-2000 > >> C-134 C Air Circuit Breaker NA1 Configurations explanation 1. NA1-2000~6300 fundamental configurations a. Motor-driven: Under-voltage instantaneous release; Shunt release; Closing electromagnet; Motor driven operating mechanism; 4 suits of transform contact; M-type Intelligent Controller; Horizontal wiring of main circuit; Doorcase; Element of main circiut; Operating instructions of Air Circuit Breaker; Packing box; Drawer seat (Drawout type) b. Manual: Under-voltage instantaneous release; 4 suits of transform contact; M-type Intelligent Controller; Horizontal wiring of main circuit; Doorcase; Element of main circuit; Operating instructions of Air Circuit Breaker; Packing box; Drawer seat(Drawout type) C-135 > >> 2. NA1-1000 fundamental configurations a. Motor-driven: Under-voltage instantaneous release; Shunt release; Closing electromagnet; Motor driven operating mechanism; 4 normal open and 4 normal close auxiliary contacts; M-type Intelligent Controller; Closing and breaking push button lock; Horizontal wiring of main circuit; Doorcase; Element of main circuit; Operating instructions of Air Circuit Breaker; Packing box; Drawer seat(Drawout type) b. Manual: Under-voltage instantaneous release; 4 normal open and 4 normal close auxiliary contacts; M-type Intelligent Controller; Horizontal wiring of main circuit; Closing and breaking push button lock; Doorcase; Element of main circuit; Operating instructions of Air Circuit Breaker; Packing box; Drawer seat(Drawout type) Air Circuit Breaker NA1 3. Additional selective configurations(need extra cost) NA1-2000~6300 selective configurations explanation: Under-voltage time release(1s, 3s, 5s). Connecting-rod type mechanical interlock (Drawerout type). Cable mechanical interlock; Operation pushbutton lock; Key lock; Door interlock; Outer transformer with earthing protect function; Vertical bus bar; Rotating bus bar(In≤3200); Indication mechanism; Counter; Shield; 5 suits of transform contact. C 4. Additional selective configurations(need extra cost) NA1-1000 selective configurations explanation: Breaking button locking device; Vertical bus bar; Mechanical interlock; Transparent cover; Multifunctional intelligent controller; Note: Please indicate the voltage when orderd If there is additional function and special requirement, please contact with the manufacturer. > >> C-136
