Power Systems Which of the following power plants needs highly skilled/qualified engineers for its operation Hydro Power Plant Gas-turbine. Nuclear. Thermal. Hydro Power Plant Gas-turbine. Nuclear. Thermal. ANSWER DOWNLOAD EXAMIANS APP
Power Systems The characteristic impedance of a transmission on line is Inversely proportional to its length. Directly proportional to its length. Directly proportional to square root of its length. Independent of its length. Inversely proportional to its length. Directly proportional to its length. Directly proportional to square root of its length. Independent of its length. 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 250 Ω 1000 Ω 25 Ω 500 Ω 250 Ω 1000 Ω 25 Ω ANSWER DOWNLOAD EXAMIANS APP
Power Systems Where do compounding done in thermal power plants Ash handling plant. Coal handling plant. Turbine. Generator. Ash handling plant. Coal handling plant. Turbine. Generator. ANSWER DOWNLOAD EXAMIANS APP
Power Systems An unloaded generator with a pre-fault voltage 1 pu has the following sequence impedance: Z0 = j 0.15 pu, Z1 = Z2 = j 0.25 pu The neutral is grounded with a reactance of 0.05 pu. The fault current in pu for single line to ground fault is 7.25 pu 3.75 pu 4.28 pu 2.5 pu 7.25 pu 3.75 pu 4.28 pu 2.5 pu ANSWER DOWNLOAD EXAMIANS APP
Power Systems A transmission line has a reactance of 1 Pu is operating at Vs = Vr = 1 Pu. The generator is connected at source end which is delivering 0.5 Pu of active power. Find the load angle? 35° 60° 30° 45° 35° 60° 30° 45° ANSWER DOWNLOAD EXAMIANS APP
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