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 = 0.7 pu, Zm =0.2 pu Zs = 0.6 pu, Zm =0.5 pu Zs = 0.5 pu, Zm =0.6 pu Zs = 0.2 pu, Zm =0.7 pu Zs = 0.7 pu, Zm =0.2 pu Zs = 0.6 pu, Zm =0.5 pu Zs = 0.5 pu, Zm =0.6 pu Zs = 0.2 pu, Zm =0.7 pu ANSWER DOWNLOAD EXAMIANS APP
Power Systems The value of inductance used for compensation of arcing grounds is ω²C/3 3/ω²C 1/3ω²C 3ω²C ω²C/3 3/ω²C 1/3ω²C 3ω²C ANSWER DOWNLOAD EXAMIANS APP
Power Systems Which of following is a medium and low head turbines None of above. Francis and Kaplan turbines. Pelton and Kaplan turbines. Kaplan and Francis turbines. None of above. Francis and Kaplan turbines. Pelton and Kaplan turbines. Kaplan and Francis turbines. ANSWER DOWNLOAD EXAMIANS APP
Power Systems Transmission lines are transposed to reduce skin effect proximity effect ferranti effect interference with neighbouring communication lines skin effect proximity effect ferranti effect interference with neighbouring communication lines ANSWER DOWNLOAD EXAMIANS APP
Power Systems A power generating station has a maximum demand of 1000 MW. The annual load factor is 75% and plant capacity factor is 60%. Calculate the reserve capacity? 750 MW 500 MW 250 MW 1250 MW 750 MW 500 MW 250 MW 1250 MW ANSWER DOWNLOAD EXAMIANS APP
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 350 kV 400 kV 500 kV 600 kV 350 kV 400 kV 500 kV ANSWER DOWNLOAD EXAMIANS APP
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