Power Systems Which of the following statements is/are true? Corona is reduced by All of these increasing the distance between the conductor increasing the radius of the conductor decreasing the supply frequency All of these increasing the distance between the conductor increasing the radius of the conductor decreasing the supply frequency ANSWER DOWNLOAD EXAMIANS APP
Power Systems The sequence components of the fault current are as follows: IR1 = j1.5 pu, IR2 = -j0.5 pu, IR0 = -j1. The type of fault is LG LL LLG LLL LG LL LLG LLL ANSWER DOWNLOAD EXAMIANS APP
Power Systems If a 500 MVA, 11 kV 3-phase generator at 50 Hz feeds through a transfer impedance of (0+j0.605) Ω/phase, an infinite voltage also at 11 kV, then the maximum steady state power transfer on the base of 500 MVA and 11 kV is 0.8 pu 0.5 pu 0.4 pu 1 pu 0.8 pu 0.5 pu 0.4 pu 1 pu ANSWER DOWNLOAD EXAMIANS APP
Power Systems High capacity generators and motors are of delta connected network any of the above star connected network star connected with grounding network delta connected network any of the above star connected network star connected with grounding network ANSWER DOWNLOAD EXAMIANS APP
Power Systems Which of the following faults is/are treated as external faults? Over voltage Failure of prime mover of the generator Failure of excitation All of these Over voltage Failure of prime mover of the generator Failure of excitation All of these ANSWER DOWNLOAD EXAMIANS APP
Power Systems Which of the following power planets is the least reliable Wind. Geothermal. Solar. Tidal. Wind. Geothermal. Solar. Tidal. ANSWER DOWNLOAD EXAMIANS APP
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