Power Systems A Pelton wheel turbine having a rated speed of 300 rpm is connected to an alternator to produce power at 50 Hz. The number of poles required in the alternator is 8 20 10 4 8 20 10 4 ANSWER DOWNLOAD EXAMIANS APP
Power Systems A power station plant load factor is defined as the ratio of minimum load to peak load the energy generated to that of maximum energy that could have been generated average load to the peak load minimum load to average load minimum load to peak load the energy generated to that of maximum energy that could have been generated average load to the peak load minimum load to average load ANSWER DOWNLOAD EXAMIANS APP
Power Systems To prevent maloperation of deferentially connected relay while energizing a transformer, the relay restraining coil is biased with 5th harmonic current. 3rd harmonic current. 7th harmonic current. 2nd harmonic current. 5th harmonic current. 3rd harmonic current. 7th harmonic current. 2nd harmonic current. ANSWER DOWNLOAD EXAMIANS APP
Power Systems If a generator of 250 MVA rating has an inertia constant of 6 MJ/MVA, its inertia constant on 100 MVA base is 10.5 MJ/MVA 2.5 MJ/MVA 6 MJ/MVA 15 MJ/MVA 10.5 MJ/MVA 2.5 MJ/MVA 6 MJ/MVA 15 MJ/MVA ANSWER DOWNLOAD EXAMIANS APP
Power Systems Mho relay is used for the protection of long transmission lines. short length lines. medium length lines. no length criterion. long transmission lines. short length lines. medium length lines. no length criterion. ANSWER DOWNLOAD EXAMIANS APP
Power Systems Advantages of pumped storage plants is/are used as load frequency control All of these operating time is minimum most economical as a peak load supply plant used as load frequency control All of these operating time is minimum most economical as a peak load supply plant ANSWER DOWNLOAD EXAMIANS APP
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