MV Switchgear: Primary & Secondary AIS/GIS Introduction

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Introduction to MV Switchgear
Primary and Secondary AIS & GIS
[email protected], +353 87 820 1376
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Types of MV switchgear
– Primary AIS
(Air Insulated Switchgear)
PAIS
– Primary GIS
(Gas Insulated Switchgear)
PGIS
– Secondary AIS
(Air Insulated Switchgear)
SAIS
– Secondary GIS
(Ring Main Units)
RMU
May 11, 2022
Slide 2
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Types of MV switchgear
MV switchgear comparison overview
Primary AIS & GIS
Secondary AIS
Ring Main Unit
Rated Voltage
Up to 40.5kV
Up to 24kV
Up to 36kV
Rated current
4000A
1250A max
630A max
Circuit breaker ratings
4000A
630-1250A
200A
Switch disconnect ratings
2500A (GIS only)
1250A
630A
Short time current
Up to 50kA 3 seconds
21kA 1 second
16kA 1 second
Configuration
Withdrawable or Fixed
Removable CB
Fixed
Summary
4000A
Withdrawable (AIS)
Fixed (GIS)
40kA
1250A
Fixed or Removable CB
21kA
630A
Fixed
16kA
May 11, 2022
Slide 3
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IEC 62271-200
New definitions and classifications of MV switchgears
The latest revision of switchgear classification rules is focused on the user point of view,
in particular on aspects like service and maintenance of the switchgear, according
to international best practice, from installation to end of life de-commissioning
In this context the Loss of Service Continuity has been chosen as a fundamental
parameter for the user
May 11, 2022
Slide 4
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LSC (Loss of Service Continuity)
A category defining the possibility to keep other compartments and/or functional
units energized when opening a main circuit compartment
1. LSC1
The whole switchgear shall be put out of service for opening a main circuit compartment
for normal operation and/or normal maintenance or for having access to any switchgear
components
2. LSC2A
The same as LSC1 with the exception that the main busbars and the functional units
adjacent to the one in maintenance can remain energized
3. LSC2B
The same as LSC2B with the exception that the cable compartment can remain
energized
May 11, 2022
Slide 5
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LSC1
Compartments without any physical and electrical segregation among them
B
A
Medium Voltage Switchgear – Lateral
Section
May 11, 2022
Slide 6
A
Circuit Breaker Compartment
Feeder Compartment
Busbar Compartment
B
Auxiliary compartment
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LSC2A
Busbar and apparatus compartments physically and electrically segregated
B
C
A
Medium Voltage Switchgear – Lateral
Section
May 11, 2022
Slide 7
A
Circuit Breaker Compartment
Feeder Compartment
B
Busbar Compartment
C
Auxiliary Сompartment
—
LSC2B
Busbar, feeder and apparatus compartments physically and electrically segregated
B
D
A
C
Medium Voltage Switchgear – Lateral
Section
May 11, 2022
Slide 8
A
Circuit Breaker Compartment
B
Busbar Compartment
C
Feeder Compartment
D
Auxiliary compartment
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Primary AIS
—
Air insulated switchgear for primary applications
UniGear ZS1
UniGear ZS1
For any application in Utilities, Power Plants, Data Centers,
Industry, Oil & Gas, Marine, etc.
IEC 62271-200 type tested
LSC2B Fully Compartmentalized
Internal arc classified from Front, Lateral, Rear
Single or double busbar solution
Fully accessible from the front
Mechanical Safety Interlocks
Metal Shutters operated by CB movement
Closed door apparatus racking
May 11, 2022
Slide 10
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UniGear ZS1
Design of a typical functional unit
IEC 62271-200: Metal enclosed
LSC2B-PM
Enclosure IP4X (IP3XD)
Internal partitioning IP2X
Busbar compartment – tool-based
access for maintenance;
ready for future extensions
Low voltage compartment
Circuit breaker compartment –
interlock-controlled access
(can be combined also with
procedure-based access)
May 11, 2022
Slide 11
1.
Cable compartment – interlockcontrolled access
(can be combined also with
procedure-based access)
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Unigear ZS1
Shutters
1. Control Wiring Socket
2. Upper Shutter (closed)
3. Lateral Cover
4. Lower Shutter (closed)
5. Travel Rail
May 11, 2022
Slide 12
View of fixed contacts with shutters
opened. NOTE: Current Sensors fitted.
Shutters are opened and closed by
movement of the Circuit Breaker.
1.
2.
3.
4.
Upper Shutter (opened)
Contact System
Fixed Contact Housing
Contact Arm
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UniGear ZS1
Electrical characteristics
Rated voltage
[kV]
12
17.5
24
Test voltage (50-60 Hz/1 min)
[kV]
28
38
50
Impulse withstand voltage
[kV]
75
95
125
Rated frequency
[Hz]
50/60
50/60
50/60
Rated short-time withstand current
[kA 3s]
Up to
50
50
31.5
Peak withstand current
[kA]
Up to
125
125
80
Internal arc withstand current
[kA 1s]
Up to
50
50
31.5
Rated current of the main busbars
[A]
Up to
4000
4000
3150
Rated circuit-breaker thermal current
[A]
Up to
4000
4000
3150
630
630
630
1250
1250
1250
1600
1600
1600
2000
2000
2000
2500
2500
2300
3150
3150
2500
3600
3600
2500
4000
4000
3150
Feeders rated current with natural ventilation
Feeders rated current with forced ventilation
May 11, 2022
Slide 13
[A]
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Circuit breakers for UniGear ZS1
UniGear ZS1 is used solely with ABB breaking technologies
Vacuum and SF6 breakers available
VD4
Vacuum technology:
VD4 – embedded poles, spring type
actuator for 30,000 operations
VSC – fused vacuum contactor for motor
feeders
HD4
SF6 technology:
HD4 – SF6 Auto Puffer, motor operated,
spring wound circuit breaker
May 11, 2022
Slide 14
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Current and voltage metering in UniGear ZS1
UniGear ZS1 is equipped with ABB metering instruments
Current and voltage metering sensors and transformers available
Conventional CTs and VTs:
TPU – support-type CTs
KOKS – ring-type CTs
BD ring-type CTs
TJC – single-pole VTs without fuses
TJP – single-pole VTs with fuses
KOLMA, KOLA, ... – core balance CTs
May 11, 2022
Slide 15
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Protection and control for UniGear ZS1
UniGear ZS1 can be equipped with full range of ABB protection devices
Relion Range 615 series
– Feeder, Motor, Transformer and Line
differential protection and control IEDs
– Arc protection embedded (3 channels)
– Withdrawable and compact design
– Web browser based user interface
Relion Range 630 series
– Feeder, Motor and Transformer
protection and control IEDs
– Advanced programmable control
schemes
– 8 controllable primary apparatus
– Web browser based user interface
May 11, 2022
Slide 16
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Internal Arc classification
UniGear ZS1 is Internal Arc Classified (IAC) in compliance with IEC 62271200, Annex A, in all five criteria
Accessibility type IAC AFLR
– A – authorized personnel only
– F, L, R – front, lateral and rear
Type tested as per the rated fault conditions, i.e. up to IAC AFLR 50kA/1s
Internal arc test
in laboratory
May 11, 2022
Slide 17
Pressure release flaps
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Internal Arc Test – five criteria
Internal arc classified IAC AFLR according to the IEC 62271-200
Annex A
UniGear is in full accordance to all the five criteria:
1.
The doors of the switchboard must remain closed
and no opening of the cover panels must occur
2.
Any part of the switchboard which may be hazardous
for personnel must not be ejected
3.
No holes must appear in the external housing of the
switchboard in any parts accessible to personnel
4.
The vertically and horizontally arranged fabric indicators
placed outside the switchboard must not get burnt
5.
All the switchboard earthing connections must remain
effective
Front, rear and lateral arc resistance
May 11, 2022
Slide 18
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Internal Arc protection measures
For full IAC AFLR classification, additional protection is by means of a pressure relief channel, installed above the switchgear pressure release flaps
The application may vary as per particular situation, for example:
– Gas exhaust channel with outlets away from the switchgear room – tested up to 50kA/1s
– Channels with top chimneys, without need for external outlets – tested up to 50kA/0,5s
2
3
1
4
Gas exhaust channels
for full IAC protection
May 11, 2022
Slide 19
5
6
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UniGear Product Portfolio
– UniGear ZS1 (12-17,5kV and 24kV)
– Standard single busbar version
– Duplex – double busbar version with two CBs
– Double BusBar – one CB and two line disconnectors
– UniGear 550 (12-17,5kV) - Compact Version
– UniGear 500R (12kV) - Compact, with fixed CB and ENA
certification
– Unigear MCC (7,2kV)
– Is limitor (12-17,5kV and 24kV)
May 11, 2022
Slide 20
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Primary GIS
—
Primary GIS – ZX Range
ZX0
ZX0.2
ZX1.2
ZX2
Up to
Up to
Up to
Up to
1250A
25kA
2500A
31.5kA
2500A
31.5kA
4000A
40kA
24kV
36kV
40.5kV
40.5kV
May 11, 2022
Slide 22
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Gas-insulated switchgear
Type ZX0.2
Design
– Metal-enclosed and gas-tight
– Each panel consists of one gas compartment as a sealed pressure system
– SF6 gas-insulated
– Stainless steel enclosures
– Coupling of units by solid-insulated busbars without gas handling
– Cable access from the front
– Outer cone cable connections
– Panel widths on a 600 mm grid for all functions and current ratings
– Wall or free-standing installation
May 11, 2022
Slide 23
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Gas-insulated switchgear
Type ZX0.2
13
1
12
11
2
3
10
7
6
9
8
4
5
1.
Removable low voltage compartment
2.
Disconnector operating mechanism
3.
Mechanism bay with operator controls
4.
Circuit-breaker operating mechanism
5.
Cable connector
6.
Window-type current transformer
7.
Bushing with outer cone
8.
Isolatable voltage transformer on the cable
9.
Pressure relief disk
10. Vacuum circuit-breaker
11. Three position disconnector
12. Busbars
13. Plug-in busbar voltage transformers
May 11, 2022
Slide 24
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Gas-insulated switchgear
Type ZX0.2
Advantages
– Partitioned function compartments provide maximum safety
– Completely shockproof arrangement
– High voltage section totally independent of environmental influences
– Maximum availability for the operator
– Very Compact, compared to AIS
– Minimum maintenance requirement
– Longer life than other system types
May 11, 2022
Slide 26
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Secondary AIS
—
Secondary AIS
UniSec
Main Features
– SF6 switch-disconnector GSec
– Removable circuit breaker VD4/R_Sec and HD4/R_Sec type in vacuum type and SF6 insulator
– Withdrawable circuit breaker Vmax option
– Contactor VSC/P
– Wide portfolio available of units
– LSC2A & LSC2B service continuity classification
– Internal arc IAC AFLR
May 11, 2022
Slide 28
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Electrical Characteristics
Rated voltage
kV
12
17.5
24
Test voltage (50-60 Hz x 1 min)
kV
28
38
50
Impulse withstand voltage
kV
75
95
125
Rated frequency
Hz
50
50
50
Rated main busbar current
A
630/800/1250
630/800/1250
630/800/1250
Rated normal current of apparatus
–
VD4-HD4 removable circuit-breaker
A
630/800
630/800
630
–
GSec gas switch-disconnector
A
630/800
630/800
630
–
Vmax withdrawable
A
630/1250
630/1250
Rated short time withstand current
kA (3s)
16/21/251
16/21/251
16/21/251
Peak current
kA
40/50/63
40/52.5/631
40/52.5
Internal arc withstand current (IAC AFLR)
kA (1s)
12,5/16/212
12,5/16/212
12,5/16/2
May 11, 2022
Slide 29
1. 25 kA 2 s
25 kA 3 s for withdrawable CB panel
2. 25 kA 1s for 12-17,5kV withdrawable CB panel
—
Typical Panels removable CB units
1. SBC = switch-disconnector unit with circuit-breaker
Standard accessories
– voltage indicators
2. SBS = switch-disconnector unit with circuit-breaker for sectionalizing
M
M
B
C
May 11, 2022
A
B
C
Slide 30
A
Optional accessories
– motor operation device
– wide range of protection relays
– pressure indication
– CT’s and VT’s (SBC)
– CT’s (SBS & SBR)
– surge arresters
Dimensions
A 750 mm
B 1700 mm – 1922 mm with LV comp.
1922 mm with gas absorbers
2032 mm with gas ducts
C 1187 mm
1325 mm with gas absorbers and LV
1310 mm with gas ducts and LV
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Removable circuit-breakers
1. VD4/R-Sec available also with REF 601 on board
2. HD4/R-Sec available also with REF 601 on board
UniSec can be equipped with vacuum or gas circuit-breakers
with lateral operating mechanism. The circuit-breaker can be fully
remote controlled
Protection relay type REF601 can be integrated
in the circuit-breaker, including current sensors for current
measuring type KECA
May 11, 2022
Slide 31
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Ring Main Units
—
SafeRing
SafeRing Ring Main Units: General
– 12/24/36 kV 630 A
– Integrated control and monitoring unit
– SF6 – insulated
– Transformer protection
• fixed vacuum circuit breaker
• fuse switch disconnector
May 11, 2022
Slide 33
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SafeRing
SafeRing Ring Main Units: General
Rated voltage
12 kV
17.5 kV
24 kV
Rated Current
630A
630A
630A
Basic Insulation Level
75kV
95kV
125kV
Short Circuit, 3 sec.
21kA
21kA
16kA
Making Capacity
52,5kA
40kA
40kA
Max Fuse Size (IEC 60420)
125A
63A
63A
SafeRing is tested according to the following IEC standards: 60056, 60129, 60265, 62271-200, 60420, 60694
May 11, 2022
Slide 34
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SafeRing
SafeRing Ring Main Units: Standard Configurations
May 11, 2022
DV
CCV
CCCV
CCCC
Slide 35
C = cable feeder 630 A load break disconnect
V = 200 A Vacuum CB
CCVV
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Safering
SafeRing Ring Main Units: Dimensions
1021
765
1345
100
595
490
2 way unit 686 mm
3 way unit 1021 mm
4 way unit 1346 mm
May 11, 2022
Slide 36
1. Fixing bracket
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Recent Developments
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UFES
(Ultra Fast Earthing Switch)
– ABB has developed an extremely fast-acting earthing switch, which opens the possibility for new arc protection concepts
for medium voltage switchgear systems
– The fast-acting earthing switch UFES is an innovative combination of the ABB technologies vacuum interrupter and Is-limiter
– The reliable detection of current and light, in combination with the extreme short operation time, ensures immediate extinguishing
of every arc. This prevents the switchgear system to be protected against thermal and mechanical damages
May 11, 2022
Slide 38
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UFES
(Ultra Fast Earthing Switch)
Features of UFES:
Benefits of UFES:
– Reliable detection of current and light of the internal arc
– Increased system availability
– Arc fault duration ≤ 4 ms
– Reduction of downtimes and repair costs
– Final clearing of the fault current by the upstream
circuit-breaker
– Increased operator safety under maintenance conditions
May 11, 2022
Slide 39
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UniGear ZS1 Digital
24 kV, 3150 A, 31.5 kA
– Busbar arrangement
KECA 80 C184
• Single busbar
Protection relay
with IEC 61850
– Current sensors
• KECA 80 C184
• KECA 80 C216
KEVA 24 B20
Current sensor
– Voltage sensors
• KEVA 24 B20
Voltage sensor
– Protection and control relays
• Relion 615 series (REF615, RED615, REM615)
• Relion 620 series (REF620, REM620)
May 11, 2022
Slide 40
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Adapter, to combine Current and Voltage signals into one RJ-45
Current sensor
Protection relay
Adapter
Shielded cable with RJ45
Voltage sensor
May 11, 2022
Slide 41
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UniGear Digital …
– Wide functionality with minimum product range
– Linear characteristic – no saturation
– Current accuracy class 0.5 / 5P
– Voltage accuracy class 0.5 / 3P
– Late changes possible during design
– Eliminates risk of ferro-resonance
– Smaller and lighter devices
– Error-free connection and safe secondary signal
– Shorter lead times
– Less technical parameters to specify
– Busbar voltage measuring easily achieved
May 11, 2022
Slide 42
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World’s first gas-insulated switchgear (GIS) installation
with new eco-efficient gas mixture, AirPlus
Oerlikon substation (ewz)
Zurich, Switzerland
ABB Technology and Solution
Equipment in pilot substation includes:
The fluoroketone-based SF6 alternative gas mixture is a chemical
compound developed for switchgear applications
in collaboration with 3M
– 8 bays of 170 kV GIS
It has a dielectric performance very similar to SF6 but with
a very low GWP (Global Warming Potential)
May 11, 2022
Slide 43
– 50 panels of 24 kV GIS
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ABB in Ireland
At a glance
Lisburn, EL
Local regional office
EL Product supply & suppor
Dundalk, PAPI
IAPI QCS technology centre
R&D for QCS product line
Sales & marketing support
180
5
People work for
ABB in Ireland
Sites where products
are sold, serviced or
engineered
Want to know
more?
[email protected]
www.abb.ie
Skilled and experienced Irish team, backed by global networks
May 11, 2022
Slide 44
Dublin, HQ EL, PA, & MO
Automation, Power, Sales,
Engineering, & Management
Dublin, Cylon Controls
Production & Service
Cork PAEN
Process Automation
Project delivery
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ABB Ireland
Registered Training Provider with Engineers Ireland
ABB Electrification
ABB Motion
1.
Technical overview of LV Switchgear and Panel Selection.
1.
Harmonics, VSDs & Mitigation technologies
2.
LV Selectivity / Discrimination
2.
IE5 Synchronous Reluctance Drive and Motor Package
3.
IEC61439 Standard for Circuit Breakers & Assemblies
4.
Arc Fault Detection Devices (New MCBs & RCBOs)
5.
Electric Vehicle Charging Infrastructure
6.
The Fundamentals & Principles of Building Energy
Management Systems
7.
Introduction to MV Switchgear
8.
Building Services Integration BACnet and other options
9.
IIoT for Electrical installations
10. Building Automation – KNX universal protocol & DALI
Click here to view ABB offering on Engineers Ireland
May 11, 2022
Slide 45
David Supple
Product Marketing Director
Electrification Distribution Solutions
ABB Ltd.
Belgard Road, Tallaght,
Dublin 24, Ireland
Mobile: +353 87 820 1376
Email: [email protected]