Power Systems Find the value of a729, where "a" is the operator α² 0 α 1 α² 0 α 1 ANSWER DOWNLOAD EXAMIANS APP
Power Systems To prevent maloperation of deferentially connected relay while energizing a transformer, the relay restraining coil is biased with 7th harmonic current. 2nd harmonic current. 5th harmonic current. 3rd harmonic current. 7th harmonic current. 2nd harmonic current. 5th harmonic current. 3rd harmonic current. ANSWER DOWNLOAD EXAMIANS APP
Power Systems Due to proximity effect, the increase in conductor resistance is not negligible in underground cable overhead transmission lines All of these communication lines underground cable overhead transmission lines All of these communication lines ANSWER DOWNLOAD EXAMIANS APP
Power Systems Where air circuit breakers are used? Up to 33 kV. Up to 66 kV. Up to 11 kV. Up to 12 kV. Up to 33 kV. Up to 66 kV. Up to 11 kV. Up to 12 kV. ANSWER DOWNLOAD EXAMIANS APP
Power Systems Percentage of carbon is highest in coal gas. anthracite coal. bituminous coal. lignite coal. coal gas. anthracite coal. bituminous coal. lignite coal. 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? LG LL LLL LLG LG LL LLL LLG ANSWER DOWNLOAD EXAMIANS APP
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