SecoGear – Installation, Operation and Maintenance Manual 4 of 56
7. Circuit Breaker Operation ........................... 44
Closing Operation ............................................................ 44
Opening Operation ........................................................... 44
8. Energizing the Switchgear ...........................45
Before Energizing ................................................45
9. Maintenance ........................................46
Circuit Breaker and Instrument Compartments ...................46
Circuit Breaker Test for Proper Operation ...................................... 46
Checks After the Circuit Breaker Is De-energized .............................. 46
Lubrication ................................................................... 47
Instruments, Components and Relays ......................................... 47
Switchgear Interior ..............................................47
Main Bus Compartment .........................................48
Replacing Current Transformers (CTs) ............................49
Wire the CTs .................................................................. 49
Overall Switchgear .............................................. 50
Padlocks and Keylocks .......................................... 50
Circuit Breaker Racking Port Padlock Provision ................................ 50
Door Padlock Provision ....................................................... 51
Shutter Padlock Provision ..................................................... 51
Key Interlocks (Optional) ...................................................... 52
Kirk Lock ..................................................................... 52
Preferred Lock Out Tag Out Procedure (LOTO) .................................52
Paint Refinishing ................................................ 53
Circuit Breaker Lift Truck ........................................ 53
10. Repair and Replacement .......................... 54
Circuit Breaker Troubleshooting ................................. 54
Circuit Breaker Spare Parts ..................................... 54
11. Notes ............................................. 55
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