Switch Gear Air blast circuit breaker is used for repeated duty short duty over currents intermittent duty repeated duty short duty over currents intermittent duty ANSWER DOWNLOAD EXAMIANS APP
Switch Gear For the same power, the least size is of vaccum circuit breaker air-blast circuit breaker oil circuit breaker sf6 circuit breaker vaccum circuit breaker air-blast circuit breaker oil circuit breaker sf6 circuit breaker ANSWER DOWNLOAD EXAMIANS APP
Switch Gear Overheating of relay contacts or contact born out is due to foreign matter on the contact surface slow making and breaking of load circuit contacts too low contact pressure all of these foreign matter on the contact surface slow making and breaking of load circuit contacts too low contact pressure all of these 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 lag time operation time clearing time lead time lag time operation time clearing time lead time ANSWER DOWNLOAD EXAMIANS APP
Switch Gear To limit short-circuit current in a power system are used reactors H.R. fuses isolators earth wires reactors H.R. fuses isolators earth wires ANSWER DOWNLOAD EXAMIANS APP
Switch Gear protection of fuses is generally not used beyond 100 A 20 A 200 A 50 A 100 A 20 A 200 A 50 A ANSWER DOWNLOAD EXAMIANS APP
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