Power Systems Transmission lines are transposed to reduce ferranti effect proximity effect skin effect interference with neighbouring communication lines ferranti effect proximity effect skin effect interference with neighbouring communication lines ANSWER DOWNLOAD EXAMIANS APP
Power Systems The voltage and current instantaneous values are given as 5 sin (ωt + 30°) pu and 2 sin (ωt - 15°) pu respectively. Find the per unit active power? 7 pu 5 pu 5.353 pu 3.535 pu 7 pu 5 pu 5.353 pu 3.535 pu ANSWER DOWNLOAD EXAMIANS APP
Power Systems For variable heads of near about but less than 30 meters, which type of turbine is used in hydro power station? Francis None of these Pelton Kaplan Francis None of these Pelton Kaplan 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 28.28 kV 29.28 kV 31.28 kV 30.28 kV 28.28 kV 29.28 kV 31.28 kV ANSWER DOWNLOAD EXAMIANS APP
Power Systems A transmission line has 200 km operating at frequency of 10 Hz Hz. Find the type of the line long transmission line any of the above medium transmission line short transmission line long transmission line any of the above medium transmission line short transmission line ANSWER DOWNLOAD EXAMIANS APP
Power Systems The maximum demand of a consumer is 2 kW and corresponding daily energy consumption is 30 units. What is the corresponding load factor? 25% 50.5% 62.5% 75% 25% 50.5% 62.5% 75% ANSWER DOWNLOAD EXAMIANS APP
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