Power Systems The sequence components of the fault current are as follows : Ipositive = j1.5 pu, Inegative = − j0.5 pu, Izero = − j pu Which fault is this? LG. LLG. LL. LLLG. LG. LLG. LL. LLLG. 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? 386 MW 456 MW 478 MW 400 MW 386 MW 456 MW 478 MW 400 MW ANSWER DOWNLOAD EXAMIANS APP
Power Systems Advantage/s of per unit system as compare to absolute system? memory required is less only one equation is required All of these calculation time is less memory required is less only one equation is required All of these calculation time is less ANSWER DOWNLOAD EXAMIANS APP
Power Systems A string insulator has 4 units. The voltage across bottom most unit is 10 kV and its efficiency is 90%. Find the total operating phase voltage? 45 kV 36 kV 40 kV 32 kV 45 kV 36 kV 40 kV 32 kV ANSWER DOWNLOAD EXAMIANS APP
Power Systems Mho relay is used for the protection of long transmission lines. short length lines. medium length lines. no length criterion. long transmission lines. short length lines. medium length lines. no length criterion. ANSWER DOWNLOAD EXAMIANS APP
Power Systems Efficiency of thermal power plant can be taken as efficiency of thermal cycle. generator efficiency. product of efficiencies of all stages. turbine efficiency. efficiency of thermal cycle. generator efficiency. product of efficiencies of all stages. turbine efficiency. ANSWER DOWNLOAD EXAMIANS APP
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