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 1.13 1 0.882 0.93 1.13 1 0.882 ANSWER DOWNLOAD EXAMIANS APP
Power Systems Which of the following is/are the desirable properties of a insulator material? High ratio of puncture strength to flash over. Both 1 and 2 Low ratio of puncture strength to flash over. High relative permittivity High ratio of puncture strength to flash over. Both 1 and 2 Low ratio of puncture strength to flash over. High relative permittivity ANSWER DOWNLOAD EXAMIANS APP
Power Systems A 3-phase transmission line operating at Vs = 400 kV and has ABCD parameters A= D = 0.8∠0°, B = 100∠°90 Ω, C = 0.5*10^-6∠90° ℧. Find Charging current under no load? 0.344∠90° A/phase 0.144∠90° A/phase 0.512∠90° A/phase 1.144∠90° A/phase 0.344∠90° A/phase 0.144∠90° A/phase 0.512∠90° A/phase 1.144∠90° A/phase ANSWER DOWNLOAD EXAMIANS APP
Power Systems In transmission lines distribution constants are inductance and resistance resistance inductance and capacitance both 1 and 2 inductance and resistance resistance inductance and capacitance both 1 and 2 ANSWER DOWNLOAD EXAMIANS APP
Power Systems If the inertia constant H = 8 MJ/MVA for a 50 MVA generator, the stored energy is 400 MJ 50 MJ 8 MJ 200 MJ 400 MJ 50 MJ 8 MJ 200 MJ ANSWER DOWNLOAD EXAMIANS APP
Power Systems In a power system with negligible resistance, the fault current at a point is 8.00 pu. The series reactance is to be included at the fault point to limit the short circuit. current to 5.00 pu is 3.000 pu. 0.125 pu. 0.200 pu. 0.075 pu. 3.000 pu. 0.125 pu. 0.200 pu. 0.075 pu. ANSWER DOWNLOAD EXAMIANS APP
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