Q.

Resistance switching is used In air-blast circuit breaker to 

  • AReduce the magnitude of fault current. 
  • BControl the CB operating time.
  • CDamp out the fast transient.
  • DCharge the fault current power factor.
Correct Answer : (C)

Damp out the fast transient.

Hints :

Resistance switching is used In air-blast circuit breaker to Damp out the fast transient.

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