Power Systems If all the sequence voltages at the fault point in a power system are equal, then the fault point is a LG LL LLG LLL LG LL LLG LLL ANSWER DOWNLOAD EXAMIANS APP
Power Systems Differential relays does not used for which of the following faults? faults within a generator faults within a transformer both 1 and 2 through faults faults within a generator faults within a transformer both 1 and 2 through faults ANSWER DOWNLOAD EXAMIANS APP
Power Systems A penstock is used as a condition between none of above. the dam and the turbine in a hydro station. the heat ex-changer and the turbine in nuclear power plant. the turbine and discharge drain. none of above. the dam and the turbine in a hydro station. the heat ex-changer and the turbine in nuclear power plant. the turbine and discharge drain. ANSWER DOWNLOAD EXAMIANS APP
Power Systems A 25 MVA, 11 kV alternator is supplying full load at a point of 0.75 lagging. Determine the percentage increase in earning capacity when it is operated at improved power factor of 0.96 lagging. 28 %. 14 %. 56 %. None of above 28 %. 14 %. 56 %. None of above ANSWER DOWNLOAD EXAMIANS APP
Power Systems In a transmission line the insulators to be used at the dead end or sharp curves are suspension type any of the above pin type insulator strain type suspension type any of the above pin type insulator strain type ANSWER DOWNLOAD EXAMIANS APP
Power Systems A transmission line has a surge impedance of 400 Ω is connected with the cable having surge impedance of 40 Ω, a surge magnitude of 100 kV is travelling from the transmission line towards the cable. Find the reflected voltage? -81.82 kV 81.82 kV 18.18 kV -18.18 kV -81.82 kV 81.82 kV 18.18 kV -18.18 kV ANSWER DOWNLOAD EXAMIANS APP
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