Power Systems A transmission line has a surge impedance of 400 Ω is connected with the cable having surge impedance of 40 Ω, a surge magnitude of 100 kV is travelling from the transmission line towards the cable. Find the reflected voltage? 18.18 kV -18.18 kV -81.82 kV 81.82 kV 18.18 kV -18.18 kV -81.82 kV 81.82 kV ANSWER DOWNLOAD EXAMIANS APP
Power Systems Which of the following relationships are not valid for short transmission lines A = D = 1 B = C = Z All of these Is = Ir A = D = 1 B = C = Z All of these Is = Ir ANSWER DOWNLOAD EXAMIANS APP
Power Systems A power station has a maximum demand of 15000 kW. The annual load factor is 50% and plant capacity factor is 40%. What is the reserve capacity of the plant? 6000 kW 3000 kW 7500 kW 3750 kW 6000 kW 3000 kW 7500 kW 3750 kW ANSWER DOWNLOAD EXAMIANS APP
Power Systems Three generators rated 100 MVA, 11 kV have an impedance of 0.15 pu each. If in the same plant, these generators are being replaced by a single equivalent generator, the effective impedance of equivalent generator will be 0.05 pu 0.15 pu 0.25 pu 0.45 pu 0.05 pu 0.15 pu 0.25 pu 0.45 pu ANSWER DOWNLOAD EXAMIANS APP
Power Systems Characteristics of arc quenching medium is/are High thermal conductivity Non flammable High dielectric strength All of these High thermal conductivity Non flammable High dielectric strength All of these ANSWER DOWNLOAD EXAMIANS APP
Power Systems Operating cost of thermal power station is less than that of nuclear power plant. is the same as that of nuclear power plant. less than that of diesel power plant. less than that of hydroelectric power plant. less than that of nuclear power plant. is the same as that of nuclear power plant. less than that of diesel power plant. less than that of hydroelectric power plant. ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS