Power Systems The VSWR of transmission line is Directly proportional to voltage minimum and inversely proportional to voltage maximum. Directly proportional to characteristic impedance and inversely to load impedance. Directly proportional to load impedance and inversely to characteristic impedance. Proportional to load and characteristic impedance. Directly proportional to voltage minimum and inversely proportional to voltage maximum. Directly proportional to characteristic impedance and inversely to load impedance. Directly proportional to load impedance and inversely to characteristic impedance. Proportional to load and characteristic impedance. ANSWER DOWNLOAD EXAMIANS APP
Power Systems Condition for zero voltage regulation is tanφ = R/X cosφ = X/R tanφ = X/R cosφ = R/X tanφ = R/X cosφ = X/R tanφ = X/R cosφ = R/X ANSWER DOWNLOAD EXAMIANS APP
Power Systems A 100 MVA alternator operating at full load at 50 Hz. H = 4 MWsec/MVA, Td = 0.5 sec. One of the transmission line is tripped. So that output of generator is reduced to 70 MW. Find the frequency deviation during this time? 0.92 0.56 -0.92 -0.56 0.92 0.56 -0.92 -0.56 ANSWER DOWNLOAD EXAMIANS APP
Power Systems Which of the following is a reaction turbines Kaplan and Pelton turbine. Pelton turbine and Francis turbine. None of these. Francis turbine and Kaplan turbine. Kaplan and Pelton turbine. Pelton turbine and Francis turbine. None of these. Francis turbine and Kaplan turbine. ANSWER DOWNLOAD EXAMIANS APP
Power Systems Proximity effect depends on relative permeability frequency All of these distance between the conductors relative permeability frequency All of these distance between the conductors ANSWER DOWNLOAD EXAMIANS APP
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 transmitted voltage? 36. 36 kV 100 kV 30.6 Kv 18.18 kV 36. 36 kV 100 kV 30.6 Kv 18.18 kV ANSWER DOWNLOAD EXAMIANS APP