Power Systems Which of the following insulator is practically used for railway crossings? string insulator All of these pin insulator strain insulator string insulator All of these pin insulator strain insulator ANSWER DOWNLOAD EXAMIANS APP
Power Systems Surge impedance loading of a transmission line can be increased by addition of lumped capacitance in series addition of lumped inductance in parallel increasing its voltage level both 1 and 3 addition of lumped capacitance in series addition of lumped inductance in parallel increasing its voltage level both 1 and 3 ANSWER DOWNLOAD EXAMIANS APP
Power Systems In case of failure of prime mover of the generator, which type of relay is used? reverse power relay distance relays offset mho relay impedance relay reverse power relay distance relays offset mho relay impedance relay ANSWER DOWNLOAD EXAMIANS APP
Power Systems Capacitance voltage transformer ( CVT ) is used to reduce losses in a transmission line. none of these. connect instruments on the LT side. improve the power factor of the transmission. reduce losses in a transmission line. none of these. connect instruments on the LT side. improve the power factor of the transmission. ANSWER DOWNLOAD EXAMIANS APP
Power Systems Surge impedance loading (SIL) is represented by Vph²/Zs Vl²/Zs both 1 and 2 Vl²*√(C/L) Vph²/Zs Vl²/Zs both 1 and 2 Vl²*√(C/L) ANSWER DOWNLOAD EXAMIANS APP
Power Systems Which of the following statements is/are true regarding HVDC? There is no skin effect in dc line Corona loss is very much reduced in the dc line HVDC can utilize earth for its return path All of these There is no skin effect in dc line Corona loss is very much reduced in the dc line HVDC can utilize earth for its return path All of these ANSWER DOWNLOAD EXAMIANS APP
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