VCB Maintenance and Testing
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- VCB Maintenance and Testing
VCB Maintenance and Testing
- Checking of ON/OFF operation.
- Checking of Vacuum interrupter.
- Cleaning and proving lubricants on movable mechanical parts.
- Testing of relays through secondary injections.
- Tripping, testing of VCB, through over current and earth fault relay.
- Testing of auxiliary relays.
- Tripping of VCB through Buckhloz relay/OTI/WTI.
- Tripping of VCB through primary injection.
- Dismantling, cleaning and assemblingof front cover, push button, and locking device.
- Dismantling, cleaning of arc chute cover and terminal shield.
- Dismantling, cleaning and assembling of CE switches.

- Dismantling, cleaning and tightening of every point of auxiliary and control unit connection block.
- Dismantling, cleaning, greasing and assembling of hand pullout system, mechanism chassis and function position indicators.
- Dismantling, cleaning, checking and assembling of arc chute.
- Physical testing of control unit.
- Dismantling, cleaning,
- checking/testing and assembling of tripping coil/closing coil.
- Dismantling, cleaning and assembling of electrical spring charging motor.
- Cleaning and greasing of mechanical charging system.
- Dismantling, cleaning, greasing and assembling of clusters.1.
- Checking of ON/OFF operation.
- Checking of Vacuum interrupter.
- Cleaning and proving lubricants on movable mechanical parts.
- Testing of relays through secondary injections.
- Tripping, testing of VCB, through over current and earth fault relay.
- Testing of auxiliary relays.
- Tripping of VCB through Buckhloz relay/OTI/WTI.
- Tripping of VCB through primary injection.
- Dismantling, cleaning and assemblingof front cover, push button, and locking device.
- Dismantling, cleaning of arc chute cover and terminal shield.
- Dismantling, cleaning and assembling of CE switches.
- Dismantling, cleaning and tightening of every point of auxiliary and control unit connection block.
- Dismantling, cleaning, greasing and assembling of hand pullout system, mechanism chassis and function position indicators.
- Dismantling, cleaning, checking and assembling of arc chute.
- Physical testing of control unit.
- Dismantling, cleaning,
- checking/testing and assembling of tripping coil/closing coil.
- Dismantling, cleaning and assembling of electrical spring charging motor.
- Cleaning and greasing of mechanical charging system.
- Dismantling, cleaning, greasing and assembling of clusters