Power Systems Buchholz relay is used for protection of none of these. transformer. bus bar. alternator. none of these. transformer. bus bar. alternator. ANSWER DOWNLOAD EXAMIANS APP
Power Systems A three phase, 33 kV oil circuit breaker is rated 1200 A, the symmetrical breaking capacity is 2000 MVA, 3 secs. Then the making capacity is 5200 MVA. 5000 MVA. 5100 MVA. 5500 MVA. 5200 MVA. 5000 MVA. 5100 MVA. 5500 MVA. ANSWER DOWNLOAD EXAMIANS APP
Power Systems When is the ferranti effect on long overhead lines experienced? The power factor is unity The line is lightly loaded The line is heavily loaded The line is fully loaded The power factor is unity The line is lightly loaded The line is heavily loaded The line is fully loaded ANSWER DOWNLOAD EXAMIANS APP
Power Systems If the inertia constant H = 10 MJ/MVA for a 50 MVA generator, the stored energy is 50 MJ 500 MJ 10 MJ 5 MJ 50 MJ 500 MJ 10 MJ 5 MJ ANSWER DOWNLOAD EXAMIANS APP
Power Systems The advantage of hydro electric power station over thermal power station is the operation cost of hydro electric power station is low hydro electric station can be constructed at the place where the energy is required hydro electric power station can supply the power throughout the year the initial cost of hydro electric power station is low the operation cost of hydro electric power station is low hydro electric station can be constructed at the place where the energy is required hydro electric power station can supply the power throughout the year the initial cost of hydro electric power station is low ANSWER DOWNLOAD EXAMIANS APP
Power Systems A cable has inductance of 0.22 mH per km and capacitance of 0.202 µF per km. The surge impedance of the cable is 52 Ω 28 Ω 33 Ω 40 Ω 52 Ω 28 Ω 33 Ω 40 Ω ANSWER DOWNLOAD EXAMIANS APP
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