Power Systems The positive (Z1), negative (Z2) and zero sequence (Z0) impedances of a transmission line follows the relation (Z1 = Z2) > Z0 (Z1 = Z2) < Z0 any of the above Z1 = Z2 = Z0 (Z1 = Z2) > Z0 (Z1 = Z2) < Z0 any of the above Z1 = Z2 = Z0 ANSWER DOWNLOAD EXAMIANS APP
Power Systems Which of the following insulator is practically used for railway crossings? All of these strain insulator pin insulator string insulator All of these strain insulator pin insulator string insulator ANSWER DOWNLOAD EXAMIANS APP
Power Systems A transmission line has surge impedance of 400 Ω, operating at Vs = Vr = 400 kV line is compensated with a shunt capacitance of 30%. Find the surge impedance loading with compensation? 400 MW 386 MW 456 MW 478 MW 400 MW 386 MW 456 MW 478 MW 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 j3 pu j6 pu j9 pu j1 pu j3 pu j6 pu j9 pu j1 pu ANSWER DOWNLOAD EXAMIANS APP
Power Systems Which of the following is a reaction turbines None of these. Pelton turbine and Francis turbine. Francis turbine and Kaplan turbine. Kaplan and Pelton turbine. None of these. Pelton turbine and Francis turbine. Francis turbine and Kaplan turbine. Kaplan and Pelton turbine. ANSWER DOWNLOAD EXAMIANS APP
Power Systems If the percentage reactance of an element is 20 % and the full load current is 50 Amp, the short circuit current will be 300 Amp. 350 Amp. 200 Amp. 250 Amp. 300 Amp. 350 Amp. 200 Amp. 250 Amp. ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS