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, 0.4 100, 10 4, 10 4, 0.4 100, 0.4 100, 10 4, 10 4, 0.4 ANSWER DOWNLOAD EXAMIANS APP
Power Systems Which of following generating plants has the minimum operating cost Nuclear plant. Steam plant. Hydroelectric plant. Diesel plant. Nuclear plant. Steam plant. Hydroelectric plant. Diesel plant. ANSWER DOWNLOAD EXAMIANS APP
Power Systems Which of following statement are false In nuclear power plants, chain reaction is controlled by cadmium rods. In a nuclear reactor, multiplication factor is kept almost equal to one. Nuclear power plants are used as peak load plants only. A thermal reactor needs a moderator material. In nuclear power plants, chain reaction is controlled by cadmium rods. In a nuclear reactor, multiplication factor is kept almost equal to one. Nuclear power plants are used as peak load plants only. A thermal reactor needs a moderator material. ANSWER DOWNLOAD EXAMIANS APP
Power Systems A sort line with R/X ratio 1, the zero regulation is obtained when the power factor of the load is 0 leading unity 0.707 leading 0.5 0 leading unity 0.707 leading 0.5 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) (Zl - Zs)/(Zs + Zl) 2Zs/(Zs + Zl) 2Zl/(Zs + Zl) (Zs - Zl)/(Zs + Zl) (Zl - Zs)/(Zs + Zl) 2Zs/(Zs + Zl) 2Zl/(Zs + Zl) (Zs - Zl)/(Zs + Zl) ANSWER DOWNLOAD EXAMIANS APP
Power Systems A 3 core cable gives on test a capacitance of 3.7 µF between two cores. Find the line charging current of the cable when it is connected to 11 kV, 50 Hz system? 14.7 mA. 1 A. 14.76 A. 1.476 A. 14.7 mA. 1 A. 14.76 A. 1.476 A. ANSWER DOWNLOAD EXAMIANS APP
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