Switch Gear A circuit breaker must perform the duty of All of these opening the faulty circuit and breaking the fault current being closed on to a fault carrying fault current for a short time All of these opening the faulty circuit and breaking the fault current being closed on to a fault carrying fault current for a short time ANSWER DOWNLOAD EXAMIANS APP
Switch Gear Circuit breakers usually operate under steady state of short circuit current after dc component has ceased transient state of short circuit current sub-transient state of short circuit current steady state of short circuit current after dc component has ceased transient state of short circuit current sub-transient state of short circuit current ANSWER DOWNLOAD EXAMIANS APP
Switch Gear Most of the relays on service on electric power system are None of these electro-mechanical relays thermal relays electronic relays None of these electro-mechanical relays thermal relays electronic relays ANSWER DOWNLOAD EXAMIANS APP
Switch Gear The arc voltage produced in AC circuit breaker is always In phase with the arc current leading the arc current by 90° None of these lagging the arc current by 90° In phase with the arc current leading the arc current by 90° None of these lagging the arc current by 90° ANSWER DOWNLOAD EXAMIANS APP
Switch Gear A circuit breaker is rated as 1500 A, 1000 MVA, 33 kv, 3-second , 3- phase oil circuit breaker. The rated normal current is 750 A 1500/√3 A 1500 A None of these 750 A 1500/√3 A 1500 A None of these ANSWER DOWNLOAD EXAMIANS APP
Switch Gear With which of the following, a circuit breaker must be equipped for remote operation ? shunt trip inverse time trip time-delay trip None of these shunt trip inverse time trip time-delay trip None of these ANSWER DOWNLOAD EXAMIANS APP
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