Switch Gear A circuit breaker is rated as 1500 A, 1000 MVA, 33 kv, 3-second , 3- phase oil circuit breaker. The rated normal current is 1500/√3 A 750 A None of these 1500 A 1500/√3 A 750 A None of these 1500 A 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 4 6 2 8 4 6 2 8 ANSWER DOWNLOAD EXAMIANS APP
Switch Gear The time-current graph of a fuse is a circle None of these has inverse characteristic has a linear characteristic is a circle None of these has inverse characteristic has a linear characteristic 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 100 A 300 A more than 1000 A 200 A 100 A 300 A more than 1000 A 200 A ANSWER DOWNLOAD EXAMIANS APP
Switch Gear Interruption of large currents by relay requires 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 all of these ANSWER DOWNLOAD EXAMIANS APP
Switch Gear Dc shunt relays are made of many turns of thick wire many turns of thin wire few turns of thick wire few turns of thin wire many turns of thick wire many turns of thin wire few turns of thick wire few turns of thin wire ANSWER DOWNLOAD EXAMIANS APP
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