Switch Gear For interrupting of high voltage and low current, the circuit breaker prefered is vaccum circuit breaker oil circuit breaker all are correct air-blast circuit breaker vaccum circuit breaker oil circuit breaker all are correct air-blast circuit breaker ANSWER DOWNLOAD EXAMIANS APP
Switch Gear To limit short-circuit current in a power system are used earth wires reactors isolators H.R. fuses earth wires reactors isolators H.R. fuses ANSWER DOWNLOAD EXAMIANS APP
Switch Gear A circuit breaker is a None of these current limiting device current controlling device circuit interrupting device None of these current limiting device current controlling device circuit interrupting device ANSWER DOWNLOAD EXAMIANS APP
Switch Gear The fault that imposes severest duty on the circuit breaker is line to ground fault all three lines short-circuited line to line fault two lines to ground fault line to ground fault all three lines short-circuited line to line fault two lines to ground fault ANSWER DOWNLOAD EXAMIANS APP
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 None of these 1500/√3 A 750 A 1500 A None of these 1500/√3 A 750 A 1500 A ANSWER DOWNLOAD EXAMIANS APP
Switch Gear The contacts of high voltage switches used in power system are submerged in oil. The main purpose of the oil is to extinguish the arc All of these lubricate the contacts insulate the contacts from switch body None of these extinguish the arc All of these lubricate the contacts insulate the contacts from switch body None of these ANSWER DOWNLOAD EXAMIANS APP
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