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Consider the power system shown in Fig. 1. Use a power base of 500 MVA to calculate for a sustained three-phase fault at bus A: (a) The fault current in Amperes. (b) The voltage at bus B during fault.

Consider the power system shown in Fig. 1. Use a power base of 500 MVA to calculate for a sustained three-phase fault at bus A: (a) The fault current in Amperes. (b) The voltage at bus B during fault.

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
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Consider the power system shown in Fig. 1. Use a power base of 500 MVA to calculate for a sustained three-phase fault at bus A: (a) The fault current in Amperes. (b) The voltage at bus B during fault. G₁:500 MVA, 13.8 kv, xq=0.2 p.u. G₂:600 MVA, 26 kv, xq = 0.15 p.u. G3:400 MVA, 13.8 kv, x = 0.2 p.u. T₁:500 MVA, 13.8 kv/500 kv, x = 0.1 p.u. T₂:600 MVA, 26 kv/500 kv, x = 0.1 p.u. T3:500 MVA, 13.8 kv/500 kv, x=0.1 p.u. x = 50 Ω Line AB Line BC, x=80 Line AD, X = 80 2 Line pc, x= 100 2 Line BD, x=1202 T₁ G₁ OBE ) (A G₂ T₂ D 10000 MVA short circuit capacity T3 ) G3 BHO c 30
Transcribed Image Text:Consider the power system shown in Fig. 1. Use a power base of 500 MVA to calculate for a sustained three-phase fault at bus A: (a) The fault current in Amperes. (b) The voltage at bus B during fault. G₁:500 MVA, 13.8 kv, xq=0.2 p.u. G₂:600 MVA, 26 kv, xq = 0.15 p.u. G3:400 MVA, 13.8 kv, x = 0.2 p.u. T₁:500 MVA, 13.8 kv/500 kv, x = 0.1 p.u. T₂:600 MVA, 26 kv/500 kv, x = 0.1 p.u. T3:500 MVA, 13.8 kv/500 kv, x=0.1 p.u. x = 50 Ω Line AB Line BC, x=80 Line AD, X = 80 2 Line pc, x= 100 2 Line BD, x=1202 T₁ G₁ OBE ) (A G₂ T₂ D 10000 MVA short circuit capacity T3 ) G3 BHO c 30
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