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? 1.13 0.93 1 0.882 1.13 0.93 1 0.882 ANSWER DOWNLOAD EXAMIANS APP
Power Systems In a 3-phase transmission line, each phase is supported by 3 insulated discs, maximum voltage of each disc is 20 kV. Find the operating voltage of the transmission line per phase if efficiency of string is 80.6%. 52.84 kV 83.76 kV 20 kV 48.36 kV 52.84 kV 83.76 kV 20 kV 48.36 kV ANSWER DOWNLOAD EXAMIANS APP
Power Systems For 132 kV system, the reactance and capacitance up to the location of the CB is 3 Ω and 0.015 μF respectively. The maximum value of RRRV is 10.01 kV / μs. 9.01 kV / μs. 12.2 kV / μs. 2.0 kV / μs. 10.01 kV / μs. 9.01 kV / μs. 12.2 kV / μs. 2.0 kV / μs. ANSWER DOWNLOAD EXAMIANS APP
Power Systems Surge impedance loading (SIL) is represented by Vph²/Zs Vl²/Zs Vl²*√(C/L) both 1 and 2 Vph²/Zs Vl²/Zs Vl²*√(C/L) both 1 and 2 ANSWER DOWNLOAD EXAMIANS APP
Power Systems Which of the following grounding is not practically preferred for protection of equipments? resistance grounding isolated grounding All of these reactance grounding resistance grounding isolated grounding All of these reactance grounding ANSWER DOWNLOAD EXAMIANS APP
Power Systems A fuse wire of circular cross-section has a radius of 0.8 mm. The wire blows off at an current of 8 Amp. Calculate the radius of wire that will blow off at an current of 1 amp? 2 mm. 4 mm. 0.2 mm. 0.4 mm. 2 mm. 4 mm. 0.2 mm. 0.4 mm. ANSWER DOWNLOAD EXAMIANS APP
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