Power Systems A cable has the following characteristics, L = 0.201 µH/m and C = 196.2 pF/m. The velocity of wave propagation through cable is 0.0312 m/s 32 m/s 159.24 m/µs 159.24 m/s 0.0312 m/s 32 m/s 159.24 m/µs 159.24 m/s ANSWER DOWNLOAD EXAMIANS APP
Power Systems Two generating stations delivering a powers of P1 = 150 MW, P2 =100 MW and the B coefficients are B11 = 0.005, B22 = 0.002, B12=B21= -0.001. Find the transmission line losses? 85.5 105.2 102.5 95.5 85.5 105.2 102.5 95.5 ANSWER DOWNLOAD EXAMIANS APP
Power Systems Stock bridge dampers are used in case hill areas to over come the which problem? increase power factor increase string efficiency All of these unequal ice loading increase power factor increase string efficiency All of these unequal ice loading ANSWER DOWNLOAD EXAMIANS APP
Power Systems Which of the following method is used for changing power factor from leading to lagging shunt capacitor shunt reactor any of the above series capacitor shunt capacitor shunt reactor any of the above series capacitor ANSWER DOWNLOAD EXAMIANS APP
Power Systems A thermal protection relay provides protection against what? Temperature Short circuit any of the above Over load Temperature Short circuit any of the above Over load ANSWER DOWNLOAD EXAMIANS APP
Power Systems A coal fired steam power station working at a plant factor of 80% has one 500 MW generating unit. If the heat content of coal is 2 kWh/kg, the overall plant efficiency is 40% and a train load of coal is 2000 metric tons, then the number of trains required daily for the plant is 10 6 2 16 10 6 2 16 ANSWER DOWNLOAD EXAMIANS APP
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