Power Systems The draft tube is provided to 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. raise the water surface of the stream to create an artificial head. reduce the effect of water hammer. ANSWER DOWNLOAD EXAMIANS APP
Power Systems A network containing 100 buses in which 10 are the voltage control buses, 5 are fixed shunt capacitor buses, 20 are the reactive power support buses, 6 are the generator buses. Find the size of the Jacobian matrix? 162 × 162 163 × 163 165 × 165 164 × 164 162 × 162 163 × 163 165 × 165 164 × 164 ANSWER DOWNLOAD EXAMIANS APP
Power Systems Which cooling is preferred for large turbine generator Oxygen cooling. Nitrogen cooling. Hydrogen cooling. None of these. Oxygen cooling. Nitrogen cooling. Hydrogen cooling. None of these. ANSWER DOWNLOAD EXAMIANS APP
Power Systems An alternator having an induced emf of 1.6 pu is connected to an infinite bus of 1 pu. If the bus bar has reactance of 0.6 pu and alternator has reactance of 0.2 pu, what is the maximum power that can be transferred? 2 pu 6 pu 5 pu 2.67 pu 2 pu 6 pu 5 pu 2.67 pu ANSWER DOWNLOAD EXAMIANS APP
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? 14.7 mA. 1.476 A. 1 A. 14.76 A. 14.7 mA. 1.476 A. 1 A. 14.76 A. ANSWER DOWNLOAD EXAMIANS APP
Power Systems A load centre is at an equidistant from the two thermal generating stations G1 and G2. The fuel cost characteristics of the generating stations are given by F1 = a + bP1 + cP²1 F2 = a + b P2 + 2cP²2 Where P1 and P2 are the generation in MW of G1 and G2, respectively. For most economic generation to meet 300 MW of load, P1 and P2 respectively, are 150, 150 200, 100 175, 125 100, 200 150, 150 200, 100 175, 125 100, 200 ANSWER DOWNLOAD EXAMIANS APP
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