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Q9: The reactance data for the power system shown in Figure below in per unit on a common base is as follows: T1 Т 3 1 4 ojo G1 G2 X1=X;= 0.3 Xo=0.5 X,=X,=0.1 X=0.25 X=0.25 X,=X,=0.1 Хо-0.05 Xo=0.05 Obtain the Th'evenin sequence impedances for the fault at bus 1 and compute the fault current in per unit for the following faults: (a) A bolted three-phase fault at bus 1. (b) A bolted single line-to-ground fault at bus 1. (c) A bolted line-to-line fault at bus 1.

Q9: The reactance data for the power system shown in Figure below in per unit on a common base is as follows: T1 Т 3 1 4 ojo G1 G2 X1=X;= 0.3 Xo=0.5 X,=X,=0.1 X=0.25 X=0.25 X,=X,=0.1 Хо-0.05 Xo=0.05 Obtain the Th'evenin sequence impedances for the fault at bus 1 and compute the fault current in per unit for the following faults: (a) A bolted three-phase fault at bus 1. (b) A bolted single line-to-ground fault at bus 1. (c) A bolted line-to-line fault at bus 1.

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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Q9: The reactance data for the power system shown in Figure below in per unit on a common base is as follows: T1 T2 3 1 4 -머머 ㅜ G1 G2 X,=X,=0.1 X=0.25 X=X;= 0.3 X=0.25 X=X;=0.1 Xo=0.05 Xo=0.5 Xo=0.05 Obtain the Th'evenin sequence impedances for the fault at bus 1 and compute the fault current in per unit for the following faults: (a) A bolted three-phase fault at bus 1. (b) A bolted single line-to-ground fault at bus 1. (c) A bolted line-to-line fault at bus 1. (d) A bolted double line-to-ground fault at bus 1.
Transcribed Image Text:Q9: The reactance data for the power system shown in Figure below in per unit on a common base is as follows: T1 T2 3 1 4 -머머 ㅜ G1 G2 X,=X,=0.1 X=0.25 X=X;= 0.3 X=0.25 X=X;=0.1 Xo=0.05 Xo=0.5 Xo=0.05 Obtain the Th'evenin sequence impedances for the fault at bus 1 and compute the fault current in per unit for the following faults: (a) A bolted three-phase fault at bus 1. (b) A bolted single line-to-ground fault at bus 1. (c) A bolted line-to-line fault at bus 1. (d) A bolted double line-to-ground fault at bus 1.
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