Power Systems A 25 MVA, 11 kV alternator is supplying full load at a point of 0.75 lagging. Determine the percentage increase in earning capacity when it is operated at improved power factor of 0.96 lagging. 14 %. None of above 56 %. 28 %. 14 %. None of above 56 %. 28 %. ANSWER DOWNLOAD EXAMIANS APP
Power Systems Which of following materials can be used as coolant CO2. Heavy water. Helium. Any of above. CO2. Heavy water. Helium. Any of above. ANSWER DOWNLOAD EXAMIANS APP
Power Systems MCB stands for molded circuit breaker. miniature circuit breaker. minimum capacity breaker. maximum capacity breaker. molded circuit breaker. miniature circuit breaker. minimum capacity breaker. maximum capacity breaker. ANSWER DOWNLOAD EXAMIANS APP
Power Systems A 100 Km long transmission line is loaded at 110 kV. If the loss of line is 5 MW and the load is 150 VA the resistance of the line is 8.06 Ω / phase. 6.06 Ω / phase. 2.26 Ω / phase. 4.65 Ω / phase. 8.06 Ω / phase. 6.06 Ω / phase. 2.26 Ω / phase. 4.65 Ω / phase. 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 25% 33.33% 66.66% 75% 25% 33.33% 66.66% 75% ANSWER DOWNLOAD EXAMIANS APP
Power Systems Which of the following statements is/are true? In case of parallel transmission lines fault current increases stability increases fault current reduces both 1 and 3 fault current increases stability increases fault current reduces both 1 and 3 ANSWER DOWNLOAD EXAMIANS APP
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