Power Systems Which of the following grounding is not practically preferred for protection of equipments? resistance grounding All of these isolated grounding reactance grounding resistance grounding All of these isolated grounding reactance grounding ANSWER DOWNLOAD EXAMIANS APP
Power Systems The zero sequence current of a generator for line to ground fault is j3 pu. Then the current through the neutral during the fault is j6 pu j9 pu j3 pu j1 pu j6 pu j9 pu j3 pu j1 pu ANSWER DOWNLOAD EXAMIANS APP
Power Systems Lightning arresters are used to protect electrical equipment against direct strokes of lightning. over voltages due to indirect lightning stroke. power frequency of over voltages. over currents due to lightning stroke. direct strokes of lightning. over voltages due to indirect lightning stroke. power frequency of over voltages. over currents due to lightning stroke. ANSWER DOWNLOAD EXAMIANS APP
Power Systems A steam power generation has an overall efficiency of 20 %. 0.6 Kg of coal is burnt per kWh of electrical energy generated. Calculated the calorific value of fuel 7268.45 KCal / Kg. 7166.67 KCal / Kg. 7000 KCal / Kg. 7562 KCal / Kg. 7268.45 KCal / Kg. 7166.67 KCal / Kg. 7000 KCal / Kg. 7562 KCal / Kg. ANSWER DOWNLOAD EXAMIANS APP
Power Systems The power station that does not requier any moving part is Thermonic convertor. Wind power generation. Tidal power generation. Solar power generation. Thermonic convertor. Wind power generation. Tidal power generation. Solar power generation. ANSWER DOWNLOAD EXAMIANS APP
Power Systems If the fault current is 2000 A, the relay setting is 50% and CT ratio is 400 : 5, then plug setting multiplier will be 15. 25. 50. 10. 15. 25. 50. 10. ANSWER DOWNLOAD EXAMIANS APP
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