Power Systems In a 3-phase transmission line, each phase is supported by 3 insulated discs, maximum voltage of each disc is 20 kV. Find the operating voltage of the transmission line per phase if efficiency of string is 80.6%. 20 kV 83.76 kV 52.84 kV 48.36 kV 20 kV 83.76 kV 52.84 kV 48.36 kV ANSWER DOWNLOAD EXAMIANS APP
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 1.25 1.13 0.89 1 1.25 1.13 0.89 ANSWER DOWNLOAD EXAMIANS APP
Power Systems Which of the following quantities are to be calculated for generator bus? P and Q δ and V Q and δ P and V P and Q δ and V Q and δ P and V ANSWER DOWNLOAD EXAMIANS APP
Power Systems The method of neutral grounding affects the positive sequence network negative sequence network All of these zero sequence network positive sequence network negative sequence network All of these zero sequence network ANSWER DOWNLOAD EXAMIANS APP
Power Systems To improve the efficiency of thermal power plant ________________ is placed between boiler and turbine. superheater. air preheater. economizer. ash handling point. superheater. air preheater. economizer. ash handling point. ANSWER DOWNLOAD EXAMIANS APP
Power Systems The main objectives of power system is/are Cost of electrical energy per KWh is to be minimum Flexible power has to be available. Reliable power has to be available All of these Cost of electrical energy per KWh is to be minimum Flexible power has to be available. Reliable power has to be available All of these ANSWER DOWNLOAD EXAMIANS APP
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