Power Systems The advantage of hydro electric power station over thermal power station is the initial cost of hydro electric power station is low hydro electric power station can supply the power throughout the year hydro electric station can be constructed at the place where the energy is required the operation cost of hydro electric power station is low the initial cost of hydro electric power station is low hydro electric power station can supply the power throughout the year hydro electric station can be constructed at the place where the energy is required the operation cost of hydro electric power station is low ANSWER DOWNLOAD EXAMIANS APP
Power Systems A 1-phase transmission line has an impedance (4 + 3j ) Ω. Find the power factor of the load for zero voltage regulation? 0.8 lead 0.6 lead 0.6 lag 0.8 lag 0.8 lead 0.6 lead 0.6 lag 0.8 lag 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? -0.56 0.56 -0.92 0.92 -0.56 0.56 -0.92 0.92 ANSWER DOWNLOAD EXAMIANS APP
Power Systems Power system network has a total power of 5000 MW at 50 Hz supplying to the different consumers. Frequency is varying at 1.5% per change of 2% load. Assume R =0.004 Hz/MW. Find the steady state frequency deviation if a sudden loss of 200 MW occur due to tripping of one of the transmission line? 50 Hz 0.52 Hz -0.52 Hz 0.48 Hz 50 Hz 0.52 Hz -0.52 Hz 0.48 Hz ANSWER DOWNLOAD EXAMIANS APP
Power Systems Skin effective is more in case of None of these power lines same in both cases communication lines None of these power lines same in both cases communication lines ANSWER DOWNLOAD EXAMIANS APP
Power Systems A diesel power plant is generally used as a/an Base load. Peak loads. Any of above. Standby/emergency plant. Base load. Peak loads. Any of above. Standby/emergency plant. ANSWER DOWNLOAD EXAMIANS APP
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