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 8 2 6 4 8 2 6 4 ANSWER DOWNLOAD EXAMIANS APP
Switch Gear Interruption of large currents by relay requires all of these arc suppressing blow out coils wide separation of the opened contacts high speed opening of contacts all of these arc suppressing blow out coils wide separation of the opened contacts high speed opening of contacts ANSWER DOWNLOAD EXAMIANS APP
Switch Gear A _______ is used to measure the stator % winding temperature of the generator. thermometer resistance thermometer pyrometer thermocouple thermometer resistance thermometer pyrometer thermocouple ANSWER DOWNLOAD EXAMIANS APP
Switch Gear If the fault occurs near the impedance relay, the V/ I ratio will be higher than that of if fault occurs away from the relay Lower than that of if fault occurs away from the relay None of these constant for all distances higher than that of if fault occurs away from the relay Lower than that of if fault occurs away from the relay None of these constant for all distances ANSWER DOWNLOAD EXAMIANS APP
Switch Gear The normal current in a power line is 100 A. If a short-circuit fault occurs on the line, then one can expect the short-circuit current to be more than 1000 A 100 A 200 A 300 A more than 1000 A 100 A 200 A 300 A ANSWER DOWNLOAD EXAMIANS APP
Switch Gear Which of the following is the least expensive protection for over current is low voltage system ? isolator rewireable fuse air break circuit breaker oil circuit breaker isolator rewireable fuse air break circuit breaker oil circuit breaker ANSWER DOWNLOAD EXAMIANS APP
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