Power Systems If the percentage reactance of an element is 20 % and the full load current is 50 Amp, the short circuit current will be 200 Amp. 350 Amp. 300 Amp. 250 Amp. 200 Amp. 350 Amp. 300 Amp. 250 Amp. ANSWER DOWNLOAD EXAMIANS APP
Power Systems A string insulator has 4 units. The voltage across the bottom most unit is 33.33% of total voltage. Its string efficiency is 33.33% 75% 25% 66.66% 33.33% 75% 25% 66.66% ANSWER DOWNLOAD EXAMIANS APP
Power Systems Find the relation between sub transient (X"), transient (X') and synchronous reactance (X) ? X" > X' >X X" < X' > X X" < X' < X X" > X' < X X" > X' >X X" < X' > X X" < X' < X X" > X' < X ANSWER DOWNLOAD EXAMIANS APP
Power Systems When reactance grounding is used in network, the voltage between neutral and ground is IR0 × Xn IN × Xn 3×IR0 × Xn both 1 and 3 IR0 × Xn IN × Xn 3×IR0 × Xn both 1 and 3 ANSWER DOWNLOAD EXAMIANS APP
Power Systems One million cubic meters of water is stored in a reservoir feeding a water turbine. The density of water is 993 kg/m³. If the centre of mass of water is 50 meters above the turbine and losses are negligible, the energy produced by that volume of water is 130.2 MWhr 140 MWhr 120 MWhr 135.3 MWhr 130.2 MWhr 140 MWhr 120 MWhr 135.3 MWhr ANSWER DOWNLOAD EXAMIANS APP
Power Systems Where air circuit breakers are used? Up to 66 kV. Up to 12 kV. Up to 33 kV. Up to 11 kV. Up to 66 kV. Up to 12 kV. Up to 33 kV. Up to 11 kV. ANSWER DOWNLOAD EXAMIANS APP
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