Power Systems A synchronous generator is of 100 MVA have inertia constant of 20 MJ/MVA. Find the angular momentum in MJsec/electrical degrees 5 0.4 2000 0.22 5 0.4 2000 0.22 ANSWER DOWNLOAD EXAMIANS APP
Power Systems Two generating stations delivering a powers of P1 = 150 MW, P2 =100 MW and the B coefficients are B11 = 0.005, B22 = 0.002, B12=B21= -0.001. Find the transmission line losses? 85.5 102.5 105.2 95.5 85.5 102.5 105.2 95.5 ANSWER DOWNLOAD EXAMIANS APP
Power Systems If a fault occurs on any feeder, the fault current is equal to unsectional bus bar. much higher than with unsectional bus bar. none of these. much lower than with unsectional bus bar. equal to unsectional bus bar. much higher than with unsectional bus bar. none of these. much lower than with unsectional bus bar. ANSWER DOWNLOAD EXAMIANS APP
Power Systems A transmission line has surge impedance of 400 Ω, operating at Vs = Vr = 400 kV line is compensated with a shunt capacitance of 30%. The line is connected to a generator delivering 200 MW. Find the load angle with out and with compensation respectively? 45° and 26° 30° and 26° 30° and 45° 26° and 30° 45° and 26° 30° and 26° 30° and 45° 26° and 30° ANSWER DOWNLOAD EXAMIANS APP
Power Systems The advantage of hydro electric power station over thermal power station is the operation cost of hydro electric power station is low hydro electric power station can supply the power throughout the year the initial cost of hydro electric power station is low hydro electric station can be constructed at the place where the energy is required the operation cost of hydro electric power station is low hydro electric power station can supply the power throughout the year the initial cost of hydro electric power station is low hydro electric station can be constructed at the place where the energy is required ANSWER DOWNLOAD EXAMIANS APP
Power Systems Where air circuit breakers are used? Up to 11 kV. Up to 12 kV. Up to 33 kV. Up to 66 kV. Up to 11 kV. Up to 12 kV. Up to 33 kV. Up to 66 kV. ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS