Switch Gear In a circuit breaker the time duration from the instant of the fault to extinction of arc is known as lag time operation time lead time clearing time lag time operation time lead time clearing time ANSWER DOWNLOAD EXAMIANS APP
Switch Gear An isolator is installed as a substitute for circuit breaker always independent of the position of circuit breaker generally on both sides of a circuit breaker to operate the relay of circuit breaker as a substitute for circuit breaker always independent of the position of circuit breaker generally on both sides of a circuit breaker to operate the relay of circuit breaker ANSWER DOWNLOAD EXAMIANS APP
Switch Gear The fusing factor is always more than 1 always less than 1 always 1 None of these always more than 1 always less than 1 always 1 None of these ANSWER DOWNLOAD EXAMIANS APP
Switch Gear Air blast circuit breakers for 400 kV power system are designed to operate in 50 milli-second 0.1 sec 100 micro-second 0.5 sec 50 milli-second 0.1 sec 100 micro-second 0.5 sec ANSWER DOWNLOAD EXAMIANS APP
Switch Gear When a fault occur in a power system, the circuit breaker is opened by remote control None of these opens automatically is opened manually is opened by remote control None of these opens automatically is opened manually ANSWER DOWNLOAD EXAMIANS APP
Switch Gear A three phase circuit breaker is rated at 2000 MVA, 33 kv. The symmetrical breaking current is 20 kA 35 kA 60 kA 80 kA 20 kA 35 kA 60 kA 80 kA ANSWER DOWNLOAD EXAMIANS APP
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