Power Systems Which of the following is/are the effects of corona All of these power loss decreases interference decreases charging current increases All of these power loss decreases interference decreases charging current increases ANSWER DOWNLOAD EXAMIANS APP
Power Systems In a nuclear reator thermal energy is obtained from burning of fuel rods in oxygen. fission of radioactive material. all of above. fusion of radioactive material. burning of fuel rods in oxygen. fission of radioactive material. all of above. fusion of radioactive material. ANSWER DOWNLOAD EXAMIANS APP
Power Systems A fault occurring at the terminals of an unloaded synchronous generator operating at its rated voltage has resulted in the following values of currents and voltages. IR0 = j 2.37 pu IR1 = -j 3.05 pu IR2 = j 0.68 pu VR0 = VR1 = VR2 = 0.237 pu. Which of the following faults has occurred? LL LG LLG LLL LL LG LLG LLL ANSWER DOWNLOAD EXAMIANS APP
Power Systems The draw back of NR method as compare to Gauss-Seidel method is/are? large requirement of computer memory large number of iterations None of these both 1 and 2 large requirement of computer memory large number of iterations None of these both 1 and 2 ANSWER DOWNLOAD EXAMIANS APP
Power Systems In a 3-phase, 5 kV, 5 MVA system, what is the base impedance? 0.5 ohm 500 ohms 50 ohms 5 ohms 0.5 ohm 500 ohms 50 ohms 5 ohms ANSWER DOWNLOAD EXAMIANS APP
Power Systems To protect the power transformer ( Y-Y with neutral grounded) against fault, which type of connection do the current transformers have? Δ-Δ connection Y-Y connection Y-Δ connection Δ-Y connection Δ-Δ connection Y-Y connection Y-Δ connection Δ-Y connection ANSWER DOWNLOAD EXAMIANS APP
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