Power Systems Corona loss is ----------------- on hilly areas than as plain areas. more remain same None of these less more remain same None of these less ANSWER DOWNLOAD EXAMIANS APP
Power Systems For a 500 Hz frequency excitation, a 100 km long power line will be modelled as medium transmission line any of the above shunt capacitor long transmission line medium transmission line any of the above shunt capacitor long transmission line ANSWER DOWNLOAD EXAMIANS APP
Power Systems A power station has a maximum demand of 15000 kW. The annual load factor is 50% and plant capacity factor is 40%. What is the reserve capacity of the plant? 3750 kW 6000 kW 3000 kW 7500 kW 3750 kW 6000 kW 3000 kW 7500 kW ANSWER DOWNLOAD EXAMIANS APP
Power Systems Making and breaking currents of 3 phase AC circuit breakers in power system are respectively in what form? RMS and RMS value Instantaneous and RMS value any of the above RMS and Instantaneous value RMS and RMS value Instantaneous and RMS value any of the above RMS and Instantaneous value ANSWER DOWNLOAD EXAMIANS APP
Power Systems When is the ferranti effect on long overhead lines experienced? The line is fully loaded The line is heavily loaded The line is lightly loaded The power factor is unity The line is fully loaded The line is heavily loaded The line is lightly loaded The power factor is unity ANSWER DOWNLOAD EXAMIANS APP
Power Systems A hydro electric generating station is supplied from a reservoir of capacity 5 × 10 − 6 cubic meters at a head of 200 meters. Find the total energy available in KWh if the overall efficiency is 75 % 3 × 106 kWh. 4.06 × 106 kWh. 5 × 106 kWh. 2.044 × 106 kWh. 3 × 106 kWh. 4.06 × 106 kWh. 5 × 106 kWh. 2.044 × 106 kWh. ANSWER DOWNLOAD EXAMIANS APP
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