Power Systems Peterson coil is used in case of transmission line for compensation of arcing grounds increase the voltage level improve power factor reduce ferranti effect compensation of arcing grounds increase the voltage level improve power factor reduce ferranti effect ANSWER DOWNLOAD EXAMIANS APP
Power Systems Proximity effect is more in case of power cables None of these over head lines same in both cases power cables None of these over head lines same in both cases ANSWER DOWNLOAD EXAMIANS APP
Power Systems On a power system network the load is increasing represents the value of impedance decrease. none of above. increase. remains constant. decrease. none of above. increase. remains constant. ANSWER DOWNLOAD EXAMIANS APP
Power Systems A 100 MVA alternator operating at full load at 50 Hz. H = 4 MWsec/MVA, Td = 0.5 sec. One of the transmission line is tripped. So that output of generator is reduced to 70 MW. Find the frequency deviation during this time? -0.92 0.92 0.56 -0.56 -0.92 0.92 0.56 -0.56 ANSWER DOWNLOAD EXAMIANS APP
Power Systems Keeping in view the cost and overall effectiveness, the following circuit breaker is best suited for capacitor bank switching? Oil CB. SF6 CB. Vacuum CB. Air blast CB. Oil CB. SF6 CB. Vacuum CB. Air blast CB. ANSWER DOWNLOAD EXAMIANS APP
Power Systems One million cubic meters of water is stored in a reservoir feeding a water turbine. The density of water is 993 kg/m³. If the centre of mass of water is 50 meters above the turbine and losses are negligible, the energy produced by that volume of water is 135.3 MWhr 130.2 MWhr 120 MWhr 140 MWhr 135.3 MWhr 130.2 MWhr 120 MWhr 140 MWhr ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS