Switch Gear When a fault occur in a power system, the circuit breaker is opened manually None of these opens automatically is opened by remote control is opened manually None of these opens automatically is opened by remote control ANSWER DOWNLOAD EXAMIANS APP
Switch Gear The transient voltage that appears across the contacts at the instant of arc extinction is called peak voltage recovery voltage restriking voltage supply voltage peak voltage recovery voltage restriking voltage supply voltage ANSWER DOWNLOAD EXAMIANS APP
Switch Gear Current chopping mainly occurs in oil circuit breaker sf 6 circuit breaker air-blast circuit breaker vaccum circuit breaker oil circuit breaker sf 6 circuit breaker air-blast circuit breaker vaccum circuit breaker ANSWER DOWNLOAD EXAMIANS APP
Switch Gear SF 6 gas is yellow in colour is lighter than air Is nontoxic has pungent small is yellow in colour is lighter than air Is nontoxic has pungent small ANSWER DOWNLOAD EXAMIANS APP
Switch Gear Interruption of large currents by relay requires all of these high speed opening of contacts arc suppressing blow out coils wide separation of the opened contacts all of these high speed opening of contacts arc suppressing blow out coils wide separation of the opened contacts ANSWER DOWNLOAD EXAMIANS APP
Switch Gear The pick-up current of a relay is 7.5 A and the fault current in relay is 30 A. Its plug-setting multiplier (P.S.M.) is 6 2 4 8 6 2 4 8 ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS