SIEMENS 8DJH Ring Main Operator Guide Circuit Breaker Panel L (Type 2) WARNING Check that the Ready For Service (gas) Gauge indicates GREEN before operation DO NOT OPERATE switchgear if the pointer is in the RED region A Feeder Earthed u OPEN Feeder Isolated u CLOSE 2756 1 Slide the Isolator/Earth Switch Control Gate down to open the Earth Shutter. B 2 Insert the Operating Lever and rotate anti- clockwise to open the Earth Switch. Feeder Isolated u OPEN 3 Remove the Operating Lever. Check the Control Gate has returned to the mid position. Feeder Connected u CLOSE 2756 1 Slide the right-hand Control Gate up to open the Isolator Shutter. 2 Insert the Operating Lever and rotate clockwise to close the Isolator Switch. OPEN a 3 For panels where the Circuit Breaker Spring Charge mechanism is motorised, the spring is automatically recharged immediately after the Circuit Breaker is opened. In this case, steps 4 and 5 can be omitted. 6 Remove the Operating Lever. Press the CLOSE button VERY HARD. CLOSE 2756 b 4 1 (a) Remove the Operating Lever. Check the Control Gate has returned to the mid position. (b) Slide the left-hand Control Gate up to open the Circuit Breaker Spring Charge Shutter. 5 Insert the Operating Lever and rotate clockwise to charge the Circuit Breaker Spring. It will click and hold when rotated enough (70°). Note: The aperture is sprung to eject the handle automatically. It must be pushed in firmly and held to rotate. These instructions detail mechanical operation of standard designs only SIEMENS 8DJH C Ring Main Operator Guide Feeder Connected u Circuit Breaker L Panel (Type 2) Feeder Isolated u OPEN CLOSE 2756 1 2 Press the OPEN button VERY HARD. D Slide the right-hand Control Gate up to open the Isolator Shutter. Feeder Isolated u OPEN 3 Insert the Operating Lever and rotate anti-clockwise to open the Isolator Switch. Feeder Earthed u CLOSE 2756 1 Slide the Isolator/Earth Switch Control Gate down to open the Earth Shutter. Circuit Breaker Spring Charge indicator 2 Insert the Operating Lever and rotate clockwise to close the Earth Switch. Circuit Breaker Spring Charge Shutter (clockwise to charge spring) 3 Remove the Operating Lever. Check the Control Gate has returned to the mid position. Circuit Breaker CLOSE push button Isolator Status indicator (shown open) OPEN CLOSE Circuit Breaker OPEN push button Isolator Switch Shutter 2756 Isolator/Earth Switch Control Gate Circuit Breaker status indication (shown open) Circuit Breaker Spring Charge control gate Earth Switch Shutter Earth Switch status indication (shown open) SWITCHGEAR Division 2 These instructions detail mechanical operation of standard designs only. This is a guide only, refer to manufacturers instructions for further important information. SG-L2 GUIDE-001 7/2/2019
