Power Systems The ABCD constants of a 3-phase transmission line are A = D = 0.8∠1°, B = 170∠85° Ω , C = 0.002∠90.4° ℧. The sending end voltage is 400 kV. The receiving end voltage under no load condition is 600 kV 400 kV 500 kV 350 kV 600 kV 400 kV 500 kV 350 kV ANSWER DOWNLOAD EXAMIANS APP
Power Systems An unloaded generator with a pre-fault voltage 1 pu has the following sequence impedance: Z0 = j 0.15 pu, Z1 = Z2 = j 0.25 pu The neutral is grounded with a reactance of 0.05 pu. The fault current in pu for single line to ground fault is 2.5 pu 4.28 pu 3.75 pu 7.25 pu 2.5 pu 4.28 pu 3.75 pu 7.25 pu 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%. Find the surge impedance loading with compensation? 400 MW 478 MW 386 MW 456 MW 400 MW 478 MW 386 MW 456 MW ANSWER DOWNLOAD EXAMIANS APP
Power Systems Example of base load stations are thermal. hydro. gas turbine. both A and B. thermal. hydro. gas turbine. both A and B. ANSWER DOWNLOAD EXAMIANS APP
Power Systems In a Gauss Seidel load flow method, the number of iterations may be reduced if the correction in voltage at each bus is multiplied by Gauss constant Lagrange multiplier Blocking factor Acceleration factor Gauss constant Lagrange multiplier Blocking factor Acceleration factor ANSWER DOWNLOAD EXAMIANS APP
Power Systems Surge impedance loading can be increased by increasing of voltage level both 1 and 2 increasing of capacitance value increasing of inductance value increasing of voltage level both 1 and 2 increasing of capacitance value increasing of inductance value ANSWER DOWNLOAD EXAMIANS APP
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