A single-line diagram of a three-phase balanced system is given below. A bolted three- phase short circuit occurs at point P, when the operating voltage was 21 kV there. Calculate the rated interrupting current rating of circuit breaker A, D and E, both in per unit and Ampere value. lc,10% D 8000KVA M) 9KV 20%. 12 22/11KV 22,000 KVA A Gen 11/22 KY 6000KVA Mz) 11 КУ GKY 15% 22,000 KVA 22,000 KVA 22/7.33K 15% 22,000 KVA 14% All tue given impedances are su btoanslent raluesT

A single-line diagram of a three-phase balanced system is given below. A bolted three- phase short circuit occurs at point P, when the operating voltage was 21 kV there. Calculate the rated interrupting current rating of circuit breaker A, D and E, both in per unit and Ampere value. lc,10% D 8000KVA M) 9KV 20%. 12 22/11KV 22,000 KVA A Gen 11/22 KY 6000KVA Mz) 11 КУ GKY 15% 22,000 KVA 22,000 KVA 22/7.33K 15% 22,000 KVA 14% All tue given impedances are su btoanslent raluesT

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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