Power Systems If the load is short circuited, then reflection coefficient of voltage is -2 -1 1 0 -2 -1 1 0 ANSWER DOWNLOAD EXAMIANS APP
Power Systems Maximum power capacity of a transmission line can be increased by nether 1 nor 2 increasing voltage level either 1 or 2 decreasing reactance value nether 1 nor 2 increasing voltage level either 1 or 2 decreasing reactance value ANSWER DOWNLOAD EXAMIANS APP
Power Systems Rankine cycle efficiency of a steam power plant is of 45 - 80 %. 20 - 30 %. 30 - 45 %. 60 - 80 %. 45 - 80 %. 20 - 30 %. 30 - 45 %. 60 - 80 %. ANSWER DOWNLOAD EXAMIANS APP
Power Systems A 100 MVA alternator operating at full load at 50 Hz. H = 4 MWsec/MVA, Td = 0.5 sec. One of the transmission line is tripped. So that output of generator is reduced to 70 MW. Find the frequency deviation during this time? -0.56 0.56 -0.92 0.92 -0.56 0.56 -0.92 0.92 ANSWER DOWNLOAD EXAMIANS APP
Power Systems Mechanical energy is supplied to a DC generator at the rate of 4200 J / S. The generator delivers 32.2 Amp at 120 V. How much energy is cost per minute of operation 23060 J. 20160 J. 20060 J. 25060 J. 23060 J. 20160 J. 20060 J. 25060 J. 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%. The line is connected to a generator delivering 200 MW. Find the load angle with out and with compensation respectively? 26° and 30° 30° and 45° 30° and 26° 45° and 26° 26° and 30° 30° and 45° 30° and 26° 45° and 26° ANSWER DOWNLOAD EXAMIANS APP
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