Power Systems When series reactor is used in generating stations, the fault current magnitude is reduced any of the above increased remains unaffected reduced any of the above increased remains unaffected ANSWER DOWNLOAD EXAMIANS APP
Power Systems A 50 Hz, 17.32 kV generator is connected to a power system. The system reactance and capacitance per phase are 10 mH and 0.2 mF respectively. What is the maximum voltage across the contacts of the circuit breaker at an instant when it passes through zero? 30.28 kV 31.28 kV 28.28 kV 29.28 kV 30.28 kV 31.28 kV 28.28 kV 29.28 kV ANSWER DOWNLOAD EXAMIANS APP
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%. 52.84 kV 48.36 kV 20 kV 83.76 kV 52.84 kV 48.36 kV 20 kV 83.76 kV ANSWER DOWNLOAD EXAMIANS APP
Power Systems Which of following materials can be used as coolant Any of above. Heavy water. Helium. CO2. Any of above. Heavy water. Helium. CO2. ANSWER DOWNLOAD EXAMIANS APP
Power Systems Surge tank is kept very close to the pen stock generator spill way turbine pen stock generator spill way turbine ANSWER DOWNLOAD EXAMIANS APP
Power Systems The water from a catchment is 60*106 cu m annually and hydro station has head of 40 m. Assuming ideal generator and turbine, the power that can be theoretically generated is 250 kW 750 kW 500 kW 300 kW 250 kW 750 kW 500 kW 300 kW ANSWER DOWNLOAD EXAMIANS APP
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