Power Systems A 3 - Φ, 33 kV oil circuit breaker is rated 1200 A, 2000 MVA, 3 s. The symmetrical breaking current is 104.8 kA. 3600 A. 35 kA. 1200 A. 104.8 kA. 3600 A. 35 kA. 1200 A. ANSWER DOWNLOAD EXAMIANS APP
Power Systems A generator has a rating of 10 MVA, 5 kV has a reactance of 0.02 pu. Find the reactance at a new base values of 50 MVA, 10 kV? 0.025 0.02 0.25 0.05 0.025 0.02 0.25 0.05 ANSWER DOWNLOAD EXAMIANS APP
Power Systems The draft tube is provided to raise the water surface of the stream to create an artificial head. reduce the effect of water hammer. None of these increase the acting head on the water wheel. raise the water surface of the stream to create an artificial head. reduce the effect of water hammer. None of these increase the acting head on the water wheel. ANSWER DOWNLOAD EXAMIANS APP
Power Systems Zero voltage regulation is possible only for lagging power factor unity power factor All of these leading power factor lagging power factor unity power factor All of these leading power factor ANSWER DOWNLOAD EXAMIANS APP
Power Systems The area under a flow duration curve represents total quantity of run-off during that period. maximum rate of run-off during the period. total of units of energy available. total power available. total quantity of run-off during that period. maximum rate of run-off during the period. total of units of energy available. total power available. 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 0.125 pu. 0.200 pu. 3.000 pu. 0.075 pu. 0.125 pu. 0.200 pu. 3.000 pu. 0.075 pu. ANSWER DOWNLOAD EXAMIANS APP
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