Capacitor used in Generator circuit breakers compartment
Capacitor used in Generator circuit breakers compartment
(OP)
Dear all. On site we have generator circuit breaker of ABB where between the generator circuit breaker and the step-up transforemr winding we have capacitor from each winding to earth. Is it possible to tell me what is the use of this capacitor? Thank you in advance.






RE: Capacitor used in Generator circuit breakers compartment
One of those "pucker" moments
RE: Capacitor used in Generator circuit breakers compartment
RE: Capacitor used in Generator circuit breakers compartment
RE: Capacitor used in Generator circuit breakers compartment
Surge arrester can be fitted on the transformer side, to provide protection for transformer and generator against overvoltages particularly reducing the peak of the surge.
Surge capacitors are fitted on both sides of the breaker system, to provide additional protection against overvoltages and to support arc extinction in the circuit breaker by transient Recovery Voltage (TRV) limitation. This also reduce the slope of the wave impulse.