Power Systems A 3-phase transmission line operating at Vs = 400 kV and has ABCD parameters A= D = 0.8∠0°, B = 100∠90° Ω, C = 0.5*10-6∠90° ℧. Find the no load receiving end voltage? 400 kV 600 kV 500 kV 320 kv 400 kV 600 kV 500 kV 320 kv ANSWER DOWNLOAD EXAMIANS APP
Power Systems Which cooling is preferred for large turbine generator Hydrogen cooling. None of these. Nitrogen cooling. Oxygen cooling. Hydrogen cooling. None of these. Nitrogen cooling. Oxygen cooling. 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? 3.535 pu 7 pu 5.353 pu 5 pu 3.535 pu 7 pu 5.353 pu 5 pu ANSWER DOWNLOAD EXAMIANS APP
Power Systems Mho relay is used for protection of short lines. long lines. medium lines. none of these. short lines. long lines. medium lines. none of these. ANSWER DOWNLOAD EXAMIANS APP
Power Systems Which of the following power stations is mainly used to cover peak load on the system? gas based thermal power plant nuclear plant pumped storage hydro power plant coal based thermal power plant gas based thermal power plant nuclear plant pumped storage hydro power plant coal based thermal power plant ANSWER DOWNLOAD EXAMIANS APP
Power Systems Find the surge impedance of a line when inductance is 160 mH and capacitance is 1µF? 160 Ω 200 Ω 800 Ω 400 Ω 160 Ω 200 Ω 800 Ω 400 Ω ANSWER DOWNLOAD EXAMIANS APP
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