Switch Gear To limit short-circuit current in a power system are used isolators H.R. fuses earth wires reactors isolators H.R. fuses earth wires reactors ANSWER DOWNLOAD EXAMIANS APP
Switch Gear The time of closing the cycle, in modern circuit breakers is 0.003 sec 0.001 sec 0.01 sec 0.10 sec 0.003 sec 0.001 sec 0.01 sec 0.10 sec ANSWER DOWNLOAD EXAMIANS APP
Switch Gear An overcurrent relay having current settling of 125% is connected to a supply circuit through a current transformer of 400/5 A. The pick-up current is 3.125 A 6.25 A 25 A 12.5 A 3.125 A 6.25 A 25 A 12.5 A ANSWER DOWNLOAD EXAMIANS APP
Switch Gear The fault that imposes severest duty on the circuit breaker is 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 line to ground fault ANSWER DOWNLOAD EXAMIANS APP
Switch Gear series reactors should have low impedance high impedance high resistance low resistance low impedance high impedance high resistance low resistance ANSWER DOWNLOAD EXAMIANS APP
Switch Gear The reflection co-efficient at the open circuited end of a transmission line unity None of these zero infinity unity None of these zero infinity ANSWER DOWNLOAD EXAMIANS APP
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