Power Systems For 66 kV lines the number of insulator discs of each 11 kV used are 6 12 3 5 6 12 3 5 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 10. 15. 25. 50. 10. 15. 25. 50. ANSWER DOWNLOAD EXAMIANS APP
Power Systems The surge impedance of a 400 km long overhead transmission line is 420 Ω. For a 200 km length of the same line, the surge impedance will be 210 Ω 840 Ω 420 Ω 400 Ω 210 Ω 840 Ω 420 Ω 400 Ω ANSWER DOWNLOAD EXAMIANS APP
Power Systems Nuclear power plant are used as intermediate load plants. base load plants. none of above. peak load plants. intermediate load plants. base load plants. none of above. peak load plants. ANSWER DOWNLOAD EXAMIANS APP
Power Systems The positive sequence reactance will be equal to negative sequence if the equipment is motor. transformer and transmission lines. generator. none of these. motor. transformer and transmission lines. generator. none of these. ANSWER DOWNLOAD EXAMIANS APP
Power Systems Two insulator discs of identical capacitance value C make up a string for a 22 kV, 50 Hz, single phase overhead line insulation system. If pin to earth capacitance is also C, then find the string efficiency? 75% 90% 86%% 50% 75% 90% 86%% 50% ANSWER DOWNLOAD EXAMIANS APP
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