Power Systems Making and breaking currents of 3 phase AC circuit breakers in power system are respectively in what form? Instantaneous and RMS value RMS and RMS value RMS and Instantaneous value any of the above Instantaneous and RMS value RMS and RMS value RMS and Instantaneous value any of the above ANSWER DOWNLOAD EXAMIANS APP
Power Systems Inductance of transmission line will decrease when both GMD and GMR increase GMD increase and GMR decrease GMD decrease and GMR increase both GMD and GMR decrease both GMD and GMR increase GMD increase and GMR decrease GMD decrease and GMR increase both GMD and GMR decrease ANSWER DOWNLOAD EXAMIANS APP
Power Systems Reactance relays are used for the protection of short transmission lines only All of these long transmission lines only medium transmission lines only short transmission lines only All of these long transmission lines only medium transmission lines only ANSWER DOWNLOAD EXAMIANS APP
Power Systems For variable heads of near about but less than 30 meters, which type of turbine is used in hydro power station? None of these Kaplan Pelton Francis None of these Kaplan Pelton Francis ANSWER DOWNLOAD EXAMIANS APP
Power Systems Power system network has a total power of 5000 MW at 50 Hz supplying to the different consumers. Frequency is varying at 1.5% per change of 2% load. Assume R =0.004 Hz/MW. Find the steady state frequency deviation if a sudden loss of 200 MW occur due to tripping of one of the transmission line? -0.52 Hz 0.52 Hz 0.48 Hz 50 Hz -0.52 Hz 0.52 Hz 0.48 Hz 50 Hz ANSWER DOWNLOAD EXAMIANS APP
Power Systems The average thermal efficiency of a modern nuclear power plant is about 80 %. 30 %. 60 %. 40 %. 80 %. 30 %. 60 %. 40 %. ANSWER DOWNLOAD EXAMIANS APP
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