The 3-p generator is rated 20 MVA, 13.8 kV. The positive, negative & zero sequence reactances are respectively 0.25, 0.35 & 0.10 pu. The neutral of generator is grounded with reactance of 0.15 pu. Determine the sub-transient current & line to line voltages of the generator when a grievous fault occurs among the unsymmetrical faults at the generator terminals with the generator operating unloaded at rated voltage. Consider generator armature resistance is 0.2 0.

The 3-p generator is rated 20 MVA, 13.8 kV. The positive, negative & zero sequence reactances are respectively 0.25, 0.35 & 0.10 pu. The neutral of generator is grounded with reactance of 0.15 pu. Determine the sub-transient current & line to line voltages of the generator when a grievous fault occurs among the unsymmetrical faults at the generator terminals with the generator operating unloaded at rated voltage. Consider generator armature resistance is 0.2 0.

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

Chapter8: Symmetrical Components

Section: Chapter Questions

Problem 8.34P

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