Power Systems A transmission line has impedance of (0.005 + j0.05) pu. Find the line at which maximum value of negative DC off set current is produced, if it is applied with Vm sinωt? 2.63 msec 4.68 msec 1.47 msec 9.68 msec 2.63 msec 4.68 msec 1.47 msec 9.68 msec ANSWER DOWNLOAD EXAMIANS APP
Power Systems A 10 MVA generator has reactance of 0.2 pu. Find the new reactance value for 50 MVA base? 0.2 pu 1 pu 5 pu 0.25 pu 0.2 pu 1 pu 5 pu 0.25 pu ANSWER DOWNLOAD EXAMIANS APP
Power Systems Alternate formation and breakage of bubbles are called water hamming. cavitations. surgfication. All of these water hamming. cavitations. surgfication. All of these ANSWER DOWNLOAD EXAMIANS APP
Power Systems Which of the following faults is/are treated as external faults? Failure of excitation Failure of prime mover of the generator Over voltage All of these Failure of excitation Failure of prime mover of the generator Over voltage All of these 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 incident current? 2500 A 250 A 100 A 200 A 2500 A 250 A 100 A 200 A ANSWER DOWNLOAD EXAMIANS APP
Power Systems When a neutral point of 3 - Φ system is directly connected to earth then it has what type of grounding? Solid. Reactance. Resistance. Peterson coil. Solid. Reactance. Resistance. Peterson coil. ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS