Switch Gear Current chopping mainly occurs in vaccum circuit breaker oil circuit breaker air-blast circuit breaker sf 6 circuit breaker vaccum circuit breaker oil circuit breaker air-blast circuit breaker sf 6 circuit breaker ANSWER DOWNLOAD EXAMIANS APP
Switch Gear In a circuit breaker the time duration from the instant of the fault to extinction of arc is known as lead time operation time lag time clearing time lead time operation time lag time clearing time ANSWER DOWNLOAD EXAMIANS APP
Switch Gear Which of the following is the least expensive protection for over current is low voltage system ? rewireable fuse oil circuit breaker isolator air break circuit breaker rewireable fuse oil circuit breaker isolator air break circuit breaker ANSWER DOWNLOAD EXAMIANS APP
Switch Gear An isolator is installed generally on both sides of a circuit breaker as a substitute for circuit breaker always independent of the position of circuit breaker to operate the relay of circuit breaker generally on both sides of a circuit breaker as a substitute for circuit breaker always independent of the position of circuit breaker to operate the relay of circuit breaker ANSWER DOWNLOAD EXAMIANS APP
Switch Gear A three phase circuit breaker is rated at 2000 MVA, 33 kv. The symmetrical breaking current is 35 kA 60 kA 80 kA 20 kA 35 kA 60 kA 80 kA 20 kA ANSWER DOWNLOAD EXAMIANS APP
Switch Gear Which of the following CB's is generally used in railways applications ? low oil circuit breaker bulk oil circuit breaker air break circuit breaker sf 6 circuit breaker low oil circuit breaker bulk oil circuit breaker air break circuit breaker sf 6 circuit breaker ANSWER DOWNLOAD EXAMIANS APP
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