Q.7 Symmetrical Fault Analysis A 50 Hz, 4 pole,400 MVA, 33 KV, alternator is delivering rated MVA at 0.8 power factor. Suddenly a fault occurs reducing in electric power output by 50% .Find the accelerating torque (in MN-m) in the alternator at the time of fault? Neglect losses and assume constant power input to the shaft.

Q.7 Symmetrical Fault Analysis A 50 Hz, 4 pole,400 MVA, 33 KV, alternator is delivering rated MVA at 0.8 power factor. Suddenly a fault occurs reducing in electric power output by 50% .Find the accelerating torque (in MN-m) in the alternator at the time of fault? Neglect losses and assume constant power input to the shaft.

Power System Analysis and Design (MindTap Course List)

6th Edition

ISBN:9781305632134

Author:J. Duncan Glover, Thomas Overbye, Mulukutla S. Sarma

Publisher:J. Duncan Glover, Thomas Overbye, Mulukutla S. Sarma

Chapter3: Power Transformers

Section: Chapter Questions

Problem 3.56P: Three single-phase two-winding transformers, each rated 3kVA,220/110volts,60Hz, with a 0.10 per-unit...

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