Q. Line impedances for the power system shown in Figure. In this system, the impedance distance relay is located in place of the power switch 1. Relay is set to protect line GH and serve as the back-up protection for line HR and HS. Reach for the zone1 impedance relays is set for 2/4 and zone2 is set for 4/5 For a bolted three-phase fault at line HR, The pre-fault voltages of both generators are 1<0 a. What is the actual impedance seen by the relay for this error? will the relay stop commanding for this error to occur? The relay operates? b. with this setting, what percentage (%) of the HR line and what percentage (%) of the HS line is protected by this relay?

Q. Line impedances for the power system shown in Figure. In this system, the impedance distance relay is located in place of the power switch 1. Relay is set to protect line GH and serve as the back-up protection for line HR and HS. Reach for the zone1 impedance relays is set for 2/4 and zone2 is set for 4/5 For a bolted three-phase fault at line HR, The pre-fault voltages of both generators are 1<0 a. What is the actual impedance seen by the relay for this error? will the relay stop commanding for this error to occur? The relay operates? b. with this setting, what percentage (%) of the HR line and what percentage (%) of the HS line is protected by this relay?

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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