Power Systems Buchholz relay is used for protection of bus bar. none of these. alternator. transformer. bus bar. none of these. alternator. transformer. ANSWER DOWNLOAD EXAMIANS APP
Power Systems In a short circuit test circuit breaker, time to reach the peak re-striking voltage 60 microsecond & the peak re-striking voltage 120 kV. Determine average RRRV (Rate of rise re-striking voltage)? 3.5 × 106 kV / sec. 1 × 106 kV / sec. 3 × 106 kV / sec. 2 × 106 kV / sec. 3.5 × 106 kV / sec. 1 × 106 kV / sec. 3 × 106 kV / sec. 2 × 106 kV / sec. ANSWER DOWNLOAD EXAMIANS APP
Power Systems Mho relay is used for protection of short lines. medium lines. long lines. none of these. short lines. medium lines. long lines. none of these. ANSWER DOWNLOAD EXAMIANS APP
Power Systems Advantages of pumped storage plants is/are used as load frequency control most economical as a peak load supply plant operating time is minimum All of these used as load frequency control most economical as a peak load supply plant operating time is minimum All of these ANSWER DOWNLOAD EXAMIANS APP
Power Systems Which of following power plants is free from environmental problem Hydroelectric. Nuclear. Steam. Diesel engine. Hydroelectric. Nuclear. Steam. Diesel engine. 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? 0.48 Hz 50 Hz 0.52 Hz -0.52 Hz 0.48 Hz 50 Hz 0.52 Hz -0.52 Hz ANSWER DOWNLOAD EXAMIANS APP
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