Power Systems A three phase, 33 kV oil circuit breaker is rated 1200 A, the symmetrical breaking capacity is 2000 MVA, 3 secs. Then the making capacity is 5200 MVA. 5100 MVA. 5000 MVA. 5500 MVA. 5200 MVA. 5100 MVA. 5000 MVA. 5500 MVA. ANSWER DOWNLOAD EXAMIANS APP
Power Systems Which of the following is low specific speed turbine? Kaplan Pelton Francis None of these Kaplan Pelton Francis None of these ANSWER DOWNLOAD EXAMIANS APP
Power Systems In a 220 kV system, the inductance and capacitance up to the circuit breaker location are 25 mH and 0.025 µF respectively. The value of resistor required to be connected across the breaker contacts which will give no transient oscillations, is 500 Ω 1000 Ω 25 Ω 250 Ω 500 Ω 1000 Ω 25 Ω 250 Ω ANSWER DOWNLOAD EXAMIANS APP
Power Systems Which of the following is an impulse turbine Pelton turbine. Francis turbine. None of above. Kaplan turbine. Pelton turbine. Francis turbine. None of above. Kaplan turbine. ANSWER DOWNLOAD EXAMIANS APP
Power Systems Skin effect depends on frequency relative permeability All of these conductivity frequency relative permeability All of these conductivity ANSWER DOWNLOAD EXAMIANS APP
Power Systems Which cooling is preferred for large turbine generator Nitrogen cooling. None of these. Hydrogen cooling. Oxygen cooling. Nitrogen cooling. None of these. Hydrogen cooling. Oxygen cooling. ANSWER DOWNLOAD EXAMIANS APP
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