A switchgear is device used for_____________?

Related Mcqs:

Which of the following medium is employed for extinction of arc in air circuit breaker?

A. Water B. Oil C. Air D. SF6...

The voltage appearing across the contacts after opening of the circuit breaker is called__________voltage

A. recovery B. surge C. operating D. arc E. none of the above...

The arc voltage produced in A.C. circuit breaker is always_____________?

A. in phase with the arc current B. lagging the arc current by 90″ C. leading the arc current by 90° D. none of the above...

Which of the following circuit breakers has high reliability and minimum maintenance ?

A. Air blast circuit breakers B. Circuit breaker with SF6 gas C. Vacuum circuit breakers D. Oil circuit breakers...

Series capacitors are used to_________________?

A. compensate for line inductive reactance B. compensate for line capacitive reactance C. improve line voltage D. none of the above...