Why is the resistance switching used in a air blast circuit breaker?
A)Reduce the magnitude of fault current.
B)Control the CB operating time.
C)Damp out the fast transient.
D)Change the fault current power factor.

Question

Quizplus · Accepted Answer

Resistance switching in an air blast circuit breaker is used to damp out the fast transients that occur during the interruption process. This helps in reducing the stress on the circuit breaker and the power system.

Why Is the Resistance Switching Used in a Air Blast