Power Systems The characteristic impedance of a transmission on line is Independent of its length. Inversely proportional to its length. Directly proportional to its length. Directly proportional to square root of its length. Independent of its length. Inversely proportional to its length. Directly proportional to its length. Directly proportional to square root of its length. ANSWER DOWNLOAD EXAMIANS APP
Power Systems A sort line with R/X ratio 1, the zero regulation is obtained when the power factor of the load is 0.5 0 leading 0.707 leading unity 0.5 0 leading 0.707 leading unity 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 LLG LL LLL LG LLG LL LLL ANSWER DOWNLOAD EXAMIANS APP
Power Systems Find the characteristic impedance of a transmission line, if impedance is 16 Ω and admittance is 0.1 m℧? 400 Ω 320 Ω 200 Ω 160 Ω 400 Ω 320 Ω 200 Ω 160 Ω ANSWER DOWNLOAD EXAMIANS APP
Power Systems To reduce the radio interference which line is/are transposed? Power line Both power and telecommunication lines None of these either 1 or 2 Power line Both power and telecommunication lines None of these either 1 or 2 ANSWER DOWNLOAD EXAMIANS APP
Power Systems Which of the following statements is/are true regarding HVDC? There is no skin effect in dc line HVDC can utilize earth for its return path All of these Corona loss is very much reduced in the dc line There is no skin effect in dc line HVDC can utilize earth for its return path All of these Corona loss is very much reduced in the dc line ANSWER DOWNLOAD EXAMIANS APP
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