Power Systems If the penalty factor of a plant is unity, its incremental transmission loss is -1 0 None of these 1 -1 0 None of these 1 ANSWER DOWNLOAD EXAMIANS APP
Power Systems Which type of connection is employed for current transformers for the protection of star- delta connected 3-phase transformer? star-star delta-delta delta-star star-delta star-star delta-delta delta-star star-delta ANSWER DOWNLOAD EXAMIANS APP
Power Systems A 3 core cable gives on test a capacitance of 3.7 µF between two cores. Find the line charging current of the cable when it is connected to 11 kV, 50 Hz system? 14.7 mA. 1 A. 14.76 A. 1.476 A. 14.7 mA. 1 A. 14.76 A. 1.476 A. ANSWER DOWNLOAD EXAMIANS APP
Power Systems An over current relay, having a current setting of 125% connected to a supply circuit through a current transformer of ratio 400/5. The pick up value is 10 A 6.25 A 15 A 12.5 A 10 A 6.25 A 15 A 12.5 A ANSWER DOWNLOAD EXAMIANS APP
Power Systems Frequencies must be same in which of the following line to exchange the power from one place to other place ? No need of same frequency for exchange of power both 1 and 2 Asynchronous line Synchronous line No need of same frequency for exchange of power both 1 and 2 Asynchronous line Synchronous line ANSWER DOWNLOAD EXAMIANS APP
Power Systems In a 3-phase transmission line, each phase is supported by 3 insulated discs, maximum voltage of each disc is 20 kV. Find the operating voltage of the transmission line per phase if efficiency of string is 80.6%. 52.84 kV 83.76 kV 48.36 kV 20 kV 52.84 kV 83.76 kV 48.36 kV 20 kV ANSWER DOWNLOAD EXAMIANS APP
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