Power Systems Condition for zero voltage regulation is tanφ = R/X cosφ = X/R cosφ = R/X tanφ = X/R tanφ = R/X cosφ = X/R cosφ = R/X tanφ = X/R ANSWER DOWNLOAD EXAMIANS APP
Power Systems The ABCD constants of a 3-phase transmission line are A = D = 0.8∠1°, B = 170∠85° Ω , C = 0.002∠90.4° ℧. The sending end voltage is 400 kV. The receiving end voltage under no load condition is 500 kV 600 kV 400 kV 350 kV 500 kV 600 kV 400 kV 350 kV ANSWER DOWNLOAD EXAMIANS APP
Power Systems A transmission line is compensated with shunt capacitance Csh. If the uncompensated transmission line surge impedance is Zs, then find the new surge impedance Zn after shunt compensation? Zs*√(1 + Kcsh) √(1 + Kcsh)/Zs Zs/√(1 + Kcsh) All of these Zs*√(1 + Kcsh) √(1 + Kcsh)/Zs Zs/√(1 + Kcsh) All of these ANSWER DOWNLOAD EXAMIANS APP
Power Systems Radio interference occur in telecommunication line due to electro magnetic induction electro static induction both 1 and 2 nether 1 nor 2 electro magnetic induction electro static induction both 1 and 2 nether 1 nor 2 ANSWER DOWNLOAD EXAMIANS APP
Power Systems Which of the following power stations is mainly used to cover peak load on the system? coal based thermal power plant nuclear plant pumped storage hydro power plant gas based thermal power plant coal based thermal power plant nuclear plant pumped storage hydro power plant gas based thermal power plant ANSWER DOWNLOAD EXAMIANS APP
Power Systems If the inertia constant H = 8 MJ/MVA for a 50 MVA generator, the stored energy is 200 MJ 8 MJ 50 MJ 400 MJ 200 MJ 8 MJ 50 MJ 400 MJ ANSWER DOWNLOAD EXAMIANS APP
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