Power Systems At slack bus, which one of the following combinations of variables is not specified? P and V V and δ P and Q Q and V P and V V and δ P and Q Q and V ANSWER DOWNLOAD EXAMIANS APP
Power Systems Where the voltage is high and current to be interrupted is low, Which of following the breaker is preferable? Air blast CB. Any of these. Vacuum CB. Oil CB. Air blast CB. Any of these. Vacuum CB. Oil CB. ANSWER DOWNLOAD EXAMIANS APP
Power Systems Which of the following rotor is used in thermal power plants? either of these cylindrical rotor squirrel cage rotor salient pole rotor either of these cylindrical rotor squirrel cage rotor salient pole rotor ANSWER DOWNLOAD EXAMIANS APP
Power Systems For flat voltage profile system, voltage regulation is 50% 100% any of the above 0% 50% 100% any of the above 0% ANSWER DOWNLOAD EXAMIANS APP
Power Systems A lossless power system has to serve a load of 250 MW. There are two generators(G1 and G2) in the system with cost curves C1 and C2 respectively defined as follows: C1 = PG1+0.055P²G1 C2 = 3 PG2 + 0.03 P²G2 Where PG1 and PG2 are the MW injections from generators G1 and G2 respectively. Thus, the minimum cost dispatch will be PG1 = 150 MW and PG2 = 100 MW PG1 = 100 MW and PG2 = 150 MW PG1 = 250 MW and PG2 = 0 MW PG1 = 0 MW and PG2 = 250 MW PG1 = 150 MW and PG2 = 100 MW PG1 = 100 MW and PG2 = 150 MW PG1 = 250 MW and PG2 = 0 MW PG1 = 0 MW and PG2 = 250 MW ANSWER DOWNLOAD EXAMIANS APP
Power Systems Earth fault relay uses the which of the following sequence currents? negative sequence zero sequence any of the above positive sequence negative sequence zero sequence any of the above positive sequence ANSWER DOWNLOAD EXAMIANS APP
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