Switch Gear Circuit breakers usually operate under steady state of short circuit current sub-transient state of short circuit current after dc component has ceased transient state of short circuit current steady state of short circuit current sub-transient state of short circuit current after dc component has ceased transient state of short circuit current ANSWER DOWNLOAD EXAMIANS APP
Switch Gear The arc voltage produced in AC circuit breaker is always In phase with the arc current lagging the arc current by 90° None of these leading the arc current by 90° In phase with the arc current lagging the arc current by 90° None of these leading the arc current by 90° ANSWER DOWNLOAD EXAMIANS APP
Switch Gear Admittance relay is impedance relay None of these directional relay non-directional relay impedance relay None of these directional relay non-directional relay ANSWER DOWNLOAD EXAMIANS APP
Switch Gear Which of the following is the least expensive protection for over current is low voltage system ? isolator oil circuit breaker rewireable fuse air break circuit breaker isolator oil circuit breaker rewireable fuse air break circuit breaker ANSWER DOWNLOAD EXAMIANS APP
Switch Gear series reactors should have low impedance low resistance high impedance high resistance low impedance low resistance high impedance high resistance ANSWER DOWNLOAD EXAMIANS APP
Switch Gear Directional relay are based on flow of power All of these voltage wave current power All of these voltage wave current ANSWER DOWNLOAD EXAMIANS APP
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