Power Systems The line currents of 3-phase supply are: IR = 3 + j 5 A IY =2 + j 2 A IB = -2 - j 1 A The zero sequence current will be 1 + j 4 A -2 - j 1 A 1 + j 2 A 5 + j 7 A 1 + j 4 A -2 - j 1 A 1 + j 2 A 5 + j 7 A ANSWER DOWNLOAD EXAMIANS APP
Power Systems Which of the following faults is/are treated as external faults? Failure of excitation Failure of prime mover of the generator Over voltage All of these Failure of excitation Failure of prime mover of the generator Over voltage All of these ANSWER DOWNLOAD EXAMIANS APP
Power Systems Main bus bar protection scheme is /are fault bus protection. differential protection. both fault bus and differential protection. none of these. fault bus protection. differential protection. both fault bus and differential protection. none of these. ANSWER DOWNLOAD EXAMIANS APP
Power Systems Which of the following is not base load power plant Diesel. Run water. Nuclear. Pump storage. Diesel. Run water. Nuclear. Pump storage. ANSWER DOWNLOAD EXAMIANS APP
Power Systems The internal flux linkage due to internal flux of a conductor is I/4*10-7 wb-T/m I/6*10-7 wb-T/m I/2*10-7 wb-T/m All of these I/4*10-7 wb-T/m I/6*10-7 wb-T/m I/2*10-7 wb-T/m All of these ANSWER DOWNLOAD EXAMIANS APP
Power Systems A transmission line has self and mutual impedances of 0.8 pu and 0.2 pu. Find the positive, negative and zero sequence impedances respectively? 0.6, 0.6 and 1.2 pu 0.8, 0.6 and 1.2 pu 0.8, 0.8 and 1.2 pu 0.6, 0.8 and 1.2 pu 0.6, 0.6 and 1.2 pu 0.8, 0.6 and 1.2 pu 0.8, 0.8 and 1.2 pu 0.6, 0.8 and 1.2 pu ANSWER DOWNLOAD EXAMIANS APP
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