Power Systems A 10 MVA generator has reactance of 0.2 pu. Find the new reactance value for 50 MVA base? 0.25 pu 5 pu 1 pu 0.2 pu 0.25 pu 5 pu 1 pu 0.2 pu ANSWER DOWNLOAD EXAMIANS APP
Power Systems Which of the following is/are the effects of corona interference decreases All of these power loss decreases charging current increases interference decreases All of these power loss decreases charging current increases 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 12.5 A 6.25 A 15 A 10 A 12.5 A 6.25 A 15 A 10 A ANSWER DOWNLOAD EXAMIANS APP
Power Systems A 1- phase transmission line operating at 30 kV has radius of 1 cm and distance between conductors is 0.5 m. Assume m = δ =1, g = 21 kV/cm and frequency f = 50 Hz. Find the critical disruptive voltage? 17.32 kV/phase 41.075 kV/phase 34.64 kV/phase 82.15 kV/phase 17.32 kV/phase 41.075 kV/phase 34.64 kV/phase 82.15 kV/phase ANSWER DOWNLOAD EXAMIANS APP
Power Systems In load flow studies PV bus is treated as PQ bus when phase angle become high voltage at the bus become high any of the above reactive power goes beyond limit phase angle become high voltage at the bus become high any of the above reactive power goes beyond limit ANSWER DOWNLOAD EXAMIANS APP
Power Systems Installation of capacitors at suitable locations and of optimum size in a distribution system results in reduction of KVA rating of distribution transformers All of these reduction in distribution power loss improved voltage regulation reduction of KVA rating of distribution transformers All of these reduction in distribution power loss improved voltage regulation ANSWER DOWNLOAD EXAMIANS APP
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