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 200 A more than 1000 A 100 A 300 A 200 A more than 1000 A 100 A 300 A ANSWER DOWNLOAD EXAMIANS APP
Switch Gear To reduce short circuit fault currents......... are used. capacitors None of these reactors resistors capacitors None of these reactors resistors ANSWER DOWNLOAD EXAMIANS APP
Switch Gear HRC fuses provide best protection against overload open circuits reverse current short circuits overload open circuits reverse current short circuits 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 None of these All of these insulate the contacts from switch body extinguish the arc lubricate the contacts None of these All of these insulate the contacts from switch body extinguish the arc lubricate the contacts ANSWER DOWNLOAD EXAMIANS APP
Switch Gear For interrupting of high voltage and low current, the circuit breaker prefered is oil circuit breaker air-blast circuit breaker vaccum circuit breaker all are correct oil circuit breaker air-blast circuit breaker vaccum circuit breaker all are correct ANSWER DOWNLOAD EXAMIANS APP
Switch Gear To limit short-circuit current in a power system are used reactors earth wires isolators H.R. fuses reactors earth wires isolators H.R. fuses ANSWER DOWNLOAD EXAMIANS APP
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