Power Systems Advantages of per unit system is/are All of these No units for any quantity It has units for all quantities Need of transformation ratio All of these No units for any quantity It has units for all quantities Need of transformation ratio 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 A 3-phase, 110 kV coaxial XLPE insulated power cable delivering power at 50 Hz, has a capacitance of 125 nF/km. If the dielectric loss tangent of XLPE is 2*10^-4, then dielcetric power loss in this cable in W/km/phase is 38.6 31.7 35.45 23.9 38.6 31.7 35.45 23.9 ANSWER DOWNLOAD EXAMIANS APP
Power Systems The economics of power plant is greatly influenced by both 1 and 2 nether 1 nor 2 diversity factor load factor both 1 and 2 nether 1 nor 2 diversity factor load factor ANSWER DOWNLOAD EXAMIANS APP
Power Systems Which of the following buses is/are not PV buses? fixed shunt capacitor buses both 1 and 2 reactive power support buses voltage control buses fixed shunt capacitor buses both 1 and 2 reactive power support buses voltage control buses ANSWER DOWNLOAD EXAMIANS APP
Power Systems A transmission line has self and mutual impedances of 0.8 pu and 0.2 pu. Find the positive, negative and zero sequence impedances respectively? 0.6, 0.6 and 1.2 pu 0.8, 0.6 and 1.2 pu 0.6, 0.8 and 1.2 pu 0.8, 0.8 and 1.2 pu 0.6, 0.6 and 1.2 pu 0.8, 0.6 and 1.2 pu 0.6, 0.8 and 1.2 pu 0.8, 0.8 and 1.2 pu ANSWER DOWNLOAD EXAMIANS APP
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