Q1. A three-phase, 200MVA, 10kV cylindrical rotor generator having a synchronous reactance of 1.2 pu and a negligible armature resistance. The generator supplies 160MW to infinite bus at 9kV and 0.8 leading power factor. a. Determine the internal voltage of the generator (in KV) and the power angle. b. If the excitation is held constant and the power output is reduced to 40MW, what will be the new power angle.

Q1. A three-phase, 200MVA, 10kV cylindrical rotor generator having a synchronous reactance of 1.2 pu and a negligible armature resistance. The generator supplies 160MW to infinite bus at 9kV and 0.8 leading power factor. a. Determine the internal voltage of the generator (in KV) and the power angle. b. If the excitation is held constant and the power output is reduced to 40MW, what will be the new power angle.

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

Chapter11: Transient Stability

Section: Chapter Questions

Problem 11.1P

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