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? 7 pu 3.535 pu 5 pu 5.353 pu 7 pu 3.535 pu 5 pu 5.353 pu ANSWER DOWNLOAD EXAMIANS APP
Power Systems For some given transmission line the expression for voltage regulation is given by (Vs - Vr)/Vr *100%. Hence, this may either be a medium line or short line this must be a short line None of these this expression is true for any line this may either be a medium line or short line this must be a short line None of these this expression is true for any line ANSWER DOWNLOAD EXAMIANS APP
Power Systems A thermal power station needs space less than that required by a gas turbine power plant of same output. less than that required by atomic power station of the same output. less than that required by hydro-power station of same capacity. less than that required by the diesel power station of same output. less than that required by a gas turbine power plant of same output. less than that required by atomic power station of the same output. less than that required by hydro-power station of same capacity. less than that required by the diesel power station of same output. ANSWER DOWNLOAD EXAMIANS APP
Power Systems In Francis turbine runner, the number blades is usually of the order of 3 - 6. 6 - 8. 16 - 24. 12 - 14. 3 - 6. 6 - 8. 16 - 24. 12 - 14. ANSWER DOWNLOAD EXAMIANS APP
Power Systems Attenuation occurs due to resistance conductance inductance both 1 and 3 resistance conductance inductance both 1 and 3 ANSWER DOWNLOAD EXAMIANS APP
Power Systems A transmission line has a surge impedance of 400 Ω is connected with the cable having surge impedance of 40 Ω, a surge magnitude of 100 kV is travelling from the transmission line towards the cable. Find the incident current? 2500 A 250 A 100 A 200 A 2500 A 250 A 100 A 200 A ANSWER DOWNLOAD EXAMIANS APP
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