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9.20 A 500-MVA, 13.8-kV synchronous generator with X = X₂ = 0.20 and Xo = 0.05 per unit is connected to a 500-MVA, 13.8-kV A/500-kV Y transformer with 0.10 per-unit leakage reactance. The generator and transformer neutrals are solidly grounded. The generator is operated at no-load and rated voltage, and the high-voltage side of the transformer is disconnected from the power system. Compare the subtransient fault currents for the following bolted faults at the transformer high-voltage terminals: three-phase fault, single line-to-ground fault, line-to-line fault, and double line-to- ground fault.

9.20 A 500-MVA, 13.8-kV synchronous generator with X = X₂ = 0.20 and Xo = 0.05 per unit is connected to a 500-MVA, 13.8-kV A/500-kV Y transformer with 0.10 per-unit leakage reactance. The generator and transformer neutrals are solidly grounded. The generator is operated at no-load and rated voltage, and the high-voltage side of the transformer is disconnected from the power system. Compare the subtransient fault currents for the following bolted faults at the transformer high-voltage terminals: three-phase fault, single line-to-ground fault, line-to-line fault, and double line-to- ground 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
Problem 1P: Visit your local library (at school or home) and describe the extent to which it provides literature...
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9.20 A 500-MVA, 13.8-kV synchronous generator with X = X₂ = 0.20 and Xo = 0.05 per unit is connected to a 500-MVA, 13.8-kV A/500-kV Y transformer with 0.10 per-unit leakage reactance. The generator and transformer neutrals are solidly grounded. The generator is operated at no-load and rated voltage, and the high-voltage side of the transformer is disconnected from the power system. Compare the subtransient fault currents for the following bolted faults at the transformer high-voltage terminals: three-phase fault, single line-to-ground fault, line-to-line fault, and double line-to- ground fault.
Transcribed Image Text:9.20 A 500-MVA, 13.8-kV synchronous generator with X = X₂ = 0.20 and Xo = 0.05 per unit is connected to a 500-MVA, 13.8-kV A/500-kV Y transformer with 0.10 per-unit leakage reactance. The generator and transformer neutrals are solidly grounded. The generator is operated at no-load and rated voltage, and the high-voltage side of the transformer is disconnected from the power system. Compare the subtransient fault currents for the following bolted faults at the transformer high-voltage terminals: three-phase fault, single line-to-ground fault, line-to-line fault, and double line-to- ground fault.
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