In the following power system 6 M L67 Y YA -OPEP 1440 T₂ G₂ L47 L 57 ΔΥ (2 A synchronous generators G₁,G₂ and synchronous motor M all have the same per-unit impedances X₁=0.05, X₁=X₂=0.7 The three transformers T₁, T₂, T3 are identical with X=0.1 pu. Finally, the three transmission lines L47, L57, L67 are identical with per-unit impedances X₁=0.2, X₁=X₂=0.1 Pre-fault all voltages are 1 pu. Then the a phase at bus 6 faults to ground (through zero impedance). What is the magnitude of the per-unit fault current?

In the following power system 6 M L67 Y YA -OPEP 1440 T₂ G₂ L47 L 57 ΔΥ (2 A synchronous generators G₁,G₂ and synchronous motor M all have the same per-unit impedances X₁=0.05, X₁=X₂=0.7 The three transformers T₁, T₂, T3 are identical with X=0.1 pu. Finally, the three transmission lines L47, L57, L67 are identical with per-unit impedances X₁=0.2, X₁=X₂=0.1 Pre-fault all voltages are 1 pu. Then the a phase at bus 6 faults to ground (through zero impedance). What is the magnitude of the per-unit fault current?

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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