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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

Introductory Circuit Analysis (13th Edition)
Introductory Circuit Analysis (13th Edition)
13th Edition
ISBN:9780133923605
Author:Robert L. Boylestad
Publisher:Robert L. Boylestad
Chapter1: Introduction
Section: Chapter Questions
Problem 1P: Visit your local library (at school or home) and describe the extent to which it provides literature...
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Problem 4 (Questions 21 through 23)-Two identical synchronous machines, each rated 60– MVA,15– kV . 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
Transcribed Image Text:Problem 4 (Questions 21 through 23)-Two identical synchronous machines, each rated 60– MVA,15– kV . 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
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