Power Systems Two insulator discs of identical capacitance value C make up a string for a 22 kV, 50 Hz, single phase overhead line insulation system. If pin to earth capacitance is also C, then find the string efficiency? 75% 86%% 50% 90% 75% 86%% 50% 90% ANSWER DOWNLOAD EXAMIANS APP
Power Systems A load centre is at an equidistant from the two thermal generating stations G1 and G2. The fuel cost characteristics of the generating stations are given by F1 = a + bP1 + cP²1 F2 = a + b P2 + 2cP²2 Where P1 and P2 are the generation in MW of G1 and G2, respectively. For most economic generation to meet 300 MW of load, P1 and P2 respectively, are 150, 150 100, 200 200, 100 175, 125 150, 150 100, 200 200, 100 175, 125 ANSWER DOWNLOAD EXAMIANS APP
Power Systems At slack bus, which one of the following combinations of variables is not specified? P and V V and δ P and Q Q and V P and V V and δ P and Q Q and V ANSWER DOWNLOAD EXAMIANS APP
Power Systems The rating of CB is in terms of voltage. volt - ampere. VAR. current. voltage. volt - ampere. VAR. current. ANSWER DOWNLOAD EXAMIANS APP
Power Systems Attenuation occurs due to both 1 and 3 resistance conductance inductance both 1 and 3 resistance conductance inductance ANSWER DOWNLOAD EXAMIANS APP
Power Systems Due to proximity effect, the increase in conductor resistance is not negligible in All of these communication lines overhead transmission lines underground cable All of these communication lines overhead transmission lines underground cable ANSWER DOWNLOAD EXAMIANS APP
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