Power Systems The corona loss on a particular system at 50 Hz is 1 kW/km per phase. What is the corona loss at 60 Hz in kW/km per phase? 1.25 1.13 0.89 1 1.25 1.13 0.89 1 ANSWER DOWNLOAD EXAMIANS APP
Power Systems A loss less transmission line having surge impedance loading (SIL) of 2280 MW is provided with a uniformly distributed series capacitive compensation of 30 %. Then SIL of compensated transmission line will be 2280 MW. 1835 MW. 3257 MW. 2725 MW. 2280 MW. 1835 MW. 3257 MW. 2725 MW. 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? Air blast CB. Vacuum CB. Oil CB. SF6 CB. Air blast CB. Vacuum CB. Oil CB. SF6 CB. ANSWER DOWNLOAD EXAMIANS APP
Power Systems Skin effect depends on conductivity All of these relative permeability frequency conductivity All of these relative permeability frequency 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? 0.48 Hz -0.52 Hz 50 Hz 0.52 Hz 0.48 Hz -0.52 Hz 50 Hz 0.52 Hz ANSWER DOWNLOAD EXAMIANS APP
Power Systems The essential requirement(s) for power plants to be operated as peak load plants are Quick response to load variation. Capability of quick starts. All of these Low capital cost. Quick response to load variation. Capability of quick starts. All of these Low capital cost. ANSWER DOWNLOAD EXAMIANS APP
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