Vacuum Circuit Breakers (Vehicle)
Table of Contents
Introduction and Safety ................................................................. 2
Introduction ................................................................................... 2
Qualified Person ........................................................................... 2
Signal Words ................................................................................ 2
Dangerous Procedures ................................................................. 2
Field Service Operation ................................................................ 2
Receiving, Handling and Storage ............................................... 3
Introduction ................................................................................... 3
Receiving Procedure .................................................................... 3
Shipping Damage Claims (when applicable) ................................ 3
Handling Procedure ...................................................................... 3
Storage Procedure ....................................................................... 3
Space Heating .............................................................................. 3
Vehicle Description ......................................................................... 4
Vehicle Function and Operational Interlocks ................................ 4
Alignment ...................................................................................... 4
Recommended Tools ......................................................................... 4
Installing Circuit Breaker Into Cubicle ........................................... 4
Levering Device and Circuit Breaker Interlock ......................... 4
Floor Interlock and Operating Lever ......................................... 5
Automatic Floor Tripping and Closing Spring Release ............. 6
Secondary Contacts ................................................................. 6
Rail Latch .................................................................................. 6
Continuous Current Interlock .................................................... 6
Removing Circuit Breaker from Cubicle ....................................... 6
Control Cable Box ........................................................................ 6
Insulating Barriers ......................................................................... 6
Maintenance ....................................................................................... 7
Introduction and Maintenance Intervals ........................................ 7
Recommended Maintenance and Lubrication .............................. 7
Removal from Switchgear ............................................................ 7
Circuit Breaker Operator Tasks ......................................................... 8
Checks of the Primary Power Path ............................................... 8
Cleanliness Check ........................................................................ 8
Primary Disconnects ..................................................................... 8
Fastener Check ............................................................................ 8
Electrical Control Checks ............................................................. 8
Insulation and Contact Resistance Test ........................................... 9
Inspection and Cleaning of Circuit Breaker Insulation .................. 9
Racking Mechanism ..................................................................... 9
MOC Actuator System .................................................................. 9
Cubicle MOC Forces .................................................................. 10
Pantograph Setup ....................................................................... 10
Floor Interlock and Operating Lever Adjusting Instructions ........ 11
Functional Tests ................................................................................. 14
Periodic Maintenance Intervals .................................................. 14
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