Power Systems Mho relays are used for the protection of which of the following lines? long transmission lines only None of these short transmission lines only medium transmission lines only long transmission lines only None of these short transmission lines only medium transmission lines only ANSWER DOWNLOAD EXAMIANS APP
Power Systems A cable has the following characteristics, L = 0.201 µH/m and C = 196.2 pF/m. The velocity of wave propagation through cable is 159.24 m/µs 32 m/s 0.0312 m/s 159.24 m/s 159.24 m/µs 32 m/s 0.0312 m/s 159.24 m/s ANSWER DOWNLOAD EXAMIANS APP
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 cosωt? 4.68 msec 2.63 msec 9.68 1.47 msec 4.68 msec 2.63 msec 9.68 1.47 msec ANSWER DOWNLOAD EXAMIANS APP
Power Systems In a three-phase system, when the loads are perfectly balanced, the neutral current is zero. two - thirds of maximum. one - third of minimum. one - third of maximum. zero. two - thirds of maximum. one - third of minimum. one - third of maximum. ANSWER DOWNLOAD EXAMIANS APP
Power Systems Which of the following statements is/are true? Due to corona, interference increases power loss increases All of these charging current increases interference increases power loss increases All of these charging current increases ANSWER DOWNLOAD EXAMIANS APP
Power Systems Which of the following statements is/are true? Corona is reduced by decreasing the supply frequency increasing the distance between the conductor increasing the radius of the conductor All of these decreasing the supply frequency increasing the distance between the conductor increasing the radius of the conductor All of these ANSWER DOWNLOAD EXAMIANS APP
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