Power Systems The pu parameters for a 500 MVA machine on its own base are: Inertia, H = 20 pu; reactance X = 2 pu. The pu values of inertia and reactance on 100 MVA common base, respectively, are 100, 10 4, 0.4 100, 0.4 4, 10 100, 10 4, 0.4 100, 0.4 4, 10 ANSWER DOWNLOAD EXAMIANS APP
Power Systems In hydroelectric power plants both operating and initial cost are high. both operating and initial cost are low. operating cost is low and initial cost is high. operating cost is high and initial cost is low. both operating and initial cost are high. both operating and initial cost are low. operating cost is low and initial cost is high. operating cost is high and initial cost is low. ANSWER DOWNLOAD EXAMIANS APP
Power Systems A transmission line is compensated with shunt capacitance Csh. After shunt compensation surge impedance loading will decreases increases remains unaffected None of these decreases increases remains unaffected None of these ANSWER DOWNLOAD EXAMIANS APP
Power Systems The annual depreciation of hydro power plant is about 20 - 25 %. 10 - 15 %. 0.5 - 1.5 %. 15 - 20 %. 20 - 25 %. 10 - 15 %. 0.5 - 1.5 %. 15 - 20 %. 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? All of these Zs/√(1 + Kcsh) Zs*√(1 + Kcsh) √(1 + Kcsh)/Zs All of these Zs/√(1 + Kcsh) Zs*√(1 + Kcsh) √(1 + Kcsh)/Zs ANSWER DOWNLOAD EXAMIANS APP
Power Systems Which of the following represents the transmission or reflection coefficient of voltage Tv? (Zl = Surge impedance of load, Zs = Surge impedance of line) 2Zl/(Zs + Zl) (Zs - Zl)/(Zs + Zl) (Zl - Zs)/(Zs + Zl) 2Zs/(Zs + Zl) 2Zl/(Zs + Zl) (Zs - Zl)/(Zs + Zl) (Zl - Zs)/(Zs + Zl) 2Zs/(Zs + Zl) ANSWER DOWNLOAD EXAMIANS APP
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