Power Systems A transmission line has impedance of (0.005 + j0.05) pu. Find the line at which maximum value of negative DC off set current is produced, if it is applied with Vm sinωt? 4.68 msec 2.63 msec 1.47 msec 9.68 msec 4.68 msec 2.63 msec 1.47 msec 9.68 msec ANSWER DOWNLOAD EXAMIANS APP
Power Systems The charging reactance of 50 km transmission line is 1500 Ω. What is the charging reactance for 100 km length of line? 1500 Ω 1000 Ω 750 Ω 3000 Ω 1500 Ω 1000 Ω 750 Ω 3000 Ω ANSWER DOWNLOAD EXAMIANS APP
Power Systems Reactance relays are used for the protection of medium transmission lines only long transmission lines only All of these short transmission lines only medium transmission lines only long transmission lines only All of these short transmission lines only 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? 164 × 164 165 × 165 163 × 163 162 × 162 164 × 164 165 × 165 163 × 163 162 × 162 ANSWER DOWNLOAD EXAMIANS APP
Power Systems One million cubic meters of water is stored in a reservoir feeding a water turbine. The density of water is 993 kg/m³. If the centre of mass of water is 50 meters above the turbine and losses are negligible, the energy produced by that volume of water is 120 MWhr 130.2 MWhr 140 MWhr 135.3 MWhr 120 MWhr 130.2 MWhr 140 MWhr 135.3 MWhr ANSWER DOWNLOAD EXAMIANS APP
Power Systems Bonding is done at the both ends of the cable to reduce the None of these iron loss sheath loss copper loss None of these iron loss sheath loss copper loss ANSWER DOWNLOAD EXAMIANS APP
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