Power Systems In a three-phase system, when the loads are perfectly balanced, the neutral current is one - third of minimum. zero. two - thirds of maximum. one - third of maximum. one - third of minimum. zero. two - thirds of maximum. one - third of maximum. ANSWER DOWNLOAD EXAMIANS APP
Power Systems A 3 - Φ, 33 kV oil circuit breaker is rated 1200 A, 2000 MVA, 3 s. The symmetrical breaking current is 104.8 kA. 1200 A. 3600 A. 35 kA. 104.8 kA. 1200 A. 3600 A. 35 kA. ANSWER DOWNLOAD EXAMIANS APP
Power Systems If the penalty factor of a plant is unity, its incremental transmission loss is None of these 0 -1 1 None of these 0 -1 1 ANSWER DOWNLOAD EXAMIANS APP
Power Systems The corona loss on a particular system at 60 Hz is 1 kW/km per phase. What is the corona loss at 50 Hz in kW/km per phase? 0.93 0.882 1 1.13 0.93 0.882 1 1.13 ANSWER DOWNLOAD EXAMIANS APP
Power Systems Which of the following represents the sag(S) of a transmission line? S = wl²/4T S = wl²/2T S = wl²/8T S = wl²/16T S = wl²/4T S = wl²/2T S = wl²/8T S = wl²/16T ANSWER DOWNLOAD EXAMIANS APP
Power Systems The ABCD constants of a 3-phase transmission line are A = D = 0.8∠1°, B = 170∠85° Ω , C = 0.002∠90.4° ℧. The sending end voltage is 400 kV. The receiving end voltage under no load condition is 350 kV 400 kV 600 kV 500 kV 350 kV 400 kV 600 kV 500 kV ANSWER DOWNLOAD EXAMIANS APP
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