Power Systems The insulator thickness on the conductor, in cables depends upon power factor reactive power voltage current power factor reactive power voltage current 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 reflected voltage? -81.82 kV 18.18 kV 81.82 kV -18.18 kV -81.82 kV 18.18 kV 81.82 kV -18.18 kV ANSWER DOWNLOAD EXAMIANS APP
Power Systems Four identical alternators each are rated for 20 MVA, 11 KV having a subtransient reactance of 16% are working in parallel. The short circuit level at the busbar is 125 MVA 100 MVA 400 MVA 500 MVA 125 MVA 100 MVA 400 MVA 500 MVA ANSWER DOWNLOAD EXAMIANS APP
Power Systems Advantages of per unit system is/are It has units for all quantities All of these Need of transformation ratio No units for any quantity It has units for all quantities All of these Need of transformation ratio No units for any quantity ANSWER DOWNLOAD EXAMIANS APP
Power Systems If, for a given alternator in economic operation mode, the incremental cost is given by (0.012 P + 8) Rs/MWh, dPL/dP = 0.2 and plant λ = 25, then power generation is 1500 MW 1000 MW 750 MW 1250 MW 1500 MW 1000 MW 750 MW 1250 MW ANSWER DOWNLOAD EXAMIANS APP
Power Systems Earthing switch is used for All of these protection of equipment from ground faults discharging residual energies measuring of safety voltage All of these protection of equipment from ground faults discharging residual energies measuring of safety voltage ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS