Power Systems A transmission line has an impedance of (2+j6) Ω has voltage regulation of 10% at a load power factor of 0.8 lag. Find the voltage regulation for a load of 0.6 lead 6.92% -6.92% 10% -10% 6.92% -6.92% 10% -10% ANSWER DOWNLOAD EXAMIANS APP
Power Systems A 3-phase transmission line operating at Vs = 400 kV and has ABCD parameters A= D = 0.8∠0°, B = 100∠90° Ω, C = 0.5*10-6∠90° ℧. Find the no load receiving end voltage? 500 kV 600 kV 400 kV 320 kv 500 kV 600 kV 400 kV 320 kv 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 j1 pu j3 pu j9 pu j6 pu j1 pu j3 pu j9 pu 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%. The line is connected to a generator delivering 200 MW. Find the load angle with out and with compensation respectively? 30° and 45° 45° and 26° 26° and 30° 30° and 26° 30° and 45° 45° and 26° 26° and 30° 30° and 26° ANSWER DOWNLOAD EXAMIANS APP
Power Systems Buchholz relay is used for protection of alternator. transformer. none of these. bus bar. alternator. transformer. none of these. bus bar. ANSWER DOWNLOAD EXAMIANS APP
Power Systems Which of the following is a reaction turbines Pelton turbine and Francis turbine. None of these. Kaplan and Pelton turbine. Francis turbine and Kaplan turbine. Pelton turbine and Francis turbine. None of these. Kaplan and Pelton turbine. Francis turbine and Kaplan turbine. ANSWER DOWNLOAD EXAMIANS APP
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