Power Systems If a 500 MVA, 11 kV 3-phase generator at 50 Hz feeds through a transfer impedance of (0+j0.605) Ω/phase, an infinite voltage also at 11 kV, then the maximum steady state power transfer on the base of 500 MVA and 11 kV is 0.4 pu 0.5 pu 1 pu 0.8 pu 0.4 pu 0.5 pu 1 pu 0.8 pu ANSWER DOWNLOAD EXAMIANS APP
Power Systems Which of the following decides the insulation level of 400 kV, EHV line? switching over voltage skin effect radio interference lighting voltage switching over voltage skin effect radio interference lighting voltage ANSWER DOWNLOAD EXAMIANS APP
Power Systems The positive, negative and zero sequence impedances of a transmission line are 0.5,0.5 and 1.1 pu respectively. The self (Zs) and mutual (Zm) impedances of the line will be given by Zs = 0.2 pu, Zm =0.7 pu Zs = 0.5 pu, Zm =0.6 pu Zs = 0.6 pu, Zm =0.5 pu Zs = 0.7 pu, Zm =0.2 pu Zs = 0.2 pu, Zm =0.7 pu Zs = 0.5 pu, Zm =0.6 pu Zs = 0.6 pu, Zm =0.5 pu Zs = 0.7 pu, Zm =0.2 pu ANSWER DOWNLOAD EXAMIANS APP
Power Systems Specified quantities of load bus are P and Q Q and V P and δ V and δ P and Q Q and V P and δ V and δ ANSWER DOWNLOAD EXAMIANS APP
Power Systems A transmission line has a reactance of 1 Pu is operating at Vs = Vr = 1 Pu. The generator is connected at source end which is delivering 0.5 Pu of active power. Find the load angle? 35° 60° 30° 45° 35° 60° 30° 45° ANSWER DOWNLOAD EXAMIANS APP
Power Systems A hydro power plant of run off river type should be provided with pondage so that the pressure inside the turbine casing remains. kinetic energy of the running water is fully utilized. firm capacity of plant is increased. operating head is controlled. pressure inside the turbine casing remains. kinetic energy of the running water is fully utilized. firm capacity of plant is increased. operating head is controlled. ANSWER DOWNLOAD EXAMIANS APP
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