Power Systems If a 500 MVA, 11 kV 3-phase generator at 50 Hz feeds through a transfer impedance of (0+j0.605) Ω/phase, an infinite voltage also at 11 kV, then the maximum steady state power transfer on the base of 500 MVA and 11 kV is 0.5 pu 0.4 pu 1 pu 0.8 pu 0.5 pu 0.4 pu 1 pu 0.8 pu ANSWER DOWNLOAD EXAMIANS APP
Power Systems A 20 MVA generator has inertia constant of 0.5 pu. Find new value for 50 MVA base? 0.1 pu 0.5 pu 0.4 pu 0.2 pu 0.1 pu 0.5 pu 0.4 pu 0.2 pu ANSWER DOWNLOAD EXAMIANS APP
Power Systems Rankine cycle efficiency of a steam power plant is of 30 - 45 %. 20 - 30 %. 60 - 80 %. 45 - 80 %. 30 - 45 %. 20 - 30 %. 60 - 80 %. 45 - 80 %. ANSWER DOWNLOAD EXAMIANS APP
Power Systems Which of the following is/are advantages of N-R method? Applicable for large power system network both 1 and 2 Number of iterations are less Time taken for each iteration is less Applicable for large power system network both 1 and 2 Number of iterations are less Time taken for each iteration is less ANSWER DOWNLOAD EXAMIANS APP
Power Systems A transmission line has an impedance of (2+j6) Ω has voltage regulation of 10% at a load power factor of 0.8 lag. Find the voltage regulation for a load of 0.6 lead -6.92% 6.92% 10% -10% -6.92% 6.92% 10% -10% ANSWER DOWNLOAD EXAMIANS APP
Power Systems Stock bridge dampers are used in case hill areas to over come the which problem? All of these increase power factor increase string efficiency unequal ice loading All of these increase power factor increase string efficiency unequal ice loading ANSWER DOWNLOAD EXAMIANS APP
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