Power Systems The voltage and current instantaneous values are given as 5 sin (ωt + 30°) pu and 2 sin (ωt - 15°) pu respectively. Find the per unit active power? 5.353 pu 3.535 pu 7 pu 5 pu 5.353 pu 3.535 pu 7 pu 5 pu ANSWER DOWNLOAD EXAMIANS APP
Power Systems The power output of a nuclear power station is proportional to square root of the rate at which fission reaction occurs. the rate at which fission reaction occurs. square of the rate at which fission reaction occurs. none of above. square root of the rate at which fission reaction occurs. the rate at which fission reaction occurs. square of the rate at which fission reaction occurs. none of above. ANSWER DOWNLOAD EXAMIANS APP
Power Systems With reference to hydrometer station, the graphical representation of the discharge as function of time is known as Hectograph. Load duration curve. Monograph. Hydro-graph. Hectograph. Load duration curve. Monograph. Hydro-graph. ANSWER DOWNLOAD EXAMIANS APP
Power Systems Mho relay is used for the protection of medium length lines. no length criterion. short length lines. long transmission lines. medium length lines. no length criterion. short length lines. long transmission lines. ANSWER DOWNLOAD EXAMIANS APP
Power Systems On what factor does the performance of a circuit breaker depend? None of these. Both A and C. Critical length of breaking. Breaking speed. None of these. Both A and C. Critical length of breaking. Breaking speed. ANSWER DOWNLOAD EXAMIANS APP
Power Systems Transmission line has a length of 300 km, operating at sending end voltage Vs = 1 pu, find the receiving end voltage(Vr) at no load? 1 pu 0.098 pu 0.98 pu 1.098 pu 1 pu 0.098 pu 0.98 pu 1.098 pu ANSWER DOWNLOAD EXAMIANS APP
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