with a subtransient reactance of 0.1 pu, are connected through a line of reactance 0.1 pu on the base of the machines rating. One machine is acting as a synchronous generator, while the other is working as a motor drawing 45-MW at 0.80 PF leading with a terminal voltage 14.5-kV. A symmetrical three-phase fault occurs at the motor bus. 21. The generator fault current contribution (p.u.) is most nearly; А. 4.37 В. 8.21 С. 14.50 D. 16.56 22. The motor fault current contribution (p.u.) is most nearly; A. 8.21 В. 10.21 С. 14.50 D. 16.56 23. The total fault current is most nearly А. 4.37 В. 10.21 С. 14.50 D. 16.5

with a subtransient reactance of 0.1 pu, are connected through a line of reactance 0.1 pu on the base of the machines rating. One machine is acting as a synchronous generator, while the other is working as a motor drawing 45-MW at 0.80 PF leading with a terminal voltage 14.5-kV. A symmetrical three-phase fault occurs at the motor bus. 21. The generator fault current contribution (p.u.) is most nearly; А. 4.37 В. 8.21 С. 14.50 D. 16.56 22. The motor fault current contribution (p.u.) is most nearly; A. 8.21 В. 10.21 С. 14.50 D. 16.56 23. The total fault current is most nearly А. 4.37 В. 10.21 С. 14.50 D. 16.5

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

Chapter7: Symmetrical Faults

Section: Chapter Questions

Problem 7.9P

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