Power Systems ACSR means Aluminium core steel reinforced Aluminium copper steel reinforced Aluminium conductor steel reinforced all conductor steel reinforced Aluminium core steel reinforced Aluminium copper steel reinforced Aluminium conductor steel reinforced all conductor steel reinforced 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%. Find the surge impedance loading with compensation? 386 MW 456 MW 400 MW 478 MW 386 MW 456 MW 400 MW 478 MW 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, 150 200, 100 175, 125 100, 200 150, 150 200, 100 175, 125 100, 200 ANSWER DOWNLOAD EXAMIANS APP
Power Systems A network containing 100 buses in which 10 are the voltage control buses, 5 are fixed shunt capacitor buses, 20 are the reactive power support buses, 6 are the generator buses. Find the size of the Jacobian matrix? 165 × 165 163 × 163 164 × 164 162 × 162 165 × 165 163 × 163 164 × 164 162 × 162 ANSWER DOWNLOAD EXAMIANS APP
Power Systems Which one of the following relays has the capability of anticipating the possible major fault in a transformer? Buchholz relay Over fluxing relay Over current relay Differential relay Buchholz relay Over fluxing relay Over current relay Differential relay ANSWER DOWNLOAD EXAMIANS APP
Power Systems If the load is short circuited, then reflection coefficient of voltage is 0 -1 1 -2 0 -1 1 -2 ANSWER DOWNLOAD EXAMIANS APP
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