Power Systems A 3 core cable gives on test a capacitance of 3.7 µF between two cores. Find the line charging current of the cable when it is connected to 11 kV, 50 Hz system? 14.76 A. 1 A. 1.476 A. 14.7 mA. 14.76 A. 1 A. 1.476 A. 14.7 mA. 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 Which of the following statements is true? Corona loss increases with increase in conductor size and increase in supply frequency decrease in conductor size and increase in supply frequency increase in conductor size and decrease in supply frequency decrease in conductor size and decrease in supply frequency increase in conductor size and increase in supply frequency decrease in conductor size and increase in supply frequency increase in conductor size and decrease in supply frequency decrease in conductor size and decrease in supply frequency ANSWER DOWNLOAD EXAMIANS APP
Power Systems When a transformer is loaded, the secondary terminal voltage gains. That means power factor is unity. zero. lagging. leading. unity. zero. lagging. leading. ANSWER DOWNLOAD EXAMIANS APP
Power Systems Which one of following fuels is used by slow thermal nuclear reaction for power generation Pu239. Th232. U235. U238. Pu239. Th232. U235. U238. ANSWER DOWNLOAD EXAMIANS APP
Power Systems Two insulator discs of identical capacitance value C make up a string for a 22 kV, 50 Hz, single phase overhead line insulation system. If pin to earth capacitance is also C, then find the string efficiency? 86%% 90% 75% 50% 86%% 90% 75% 50% ANSWER DOWNLOAD EXAMIANS APP
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