Reference Fig. 2.19, given that fault current = 2,000 A, Relay 1 set on 100%; CT ratio = 200/1; Relay 2 set on 125%. For discrimination the time gradient margin between the relays in 0.5 second. Determine the time of operation of the two relays assuming that both the relays have the characteristic as shows in the following table and the relay number, I has a time multiplier setting = 0.2. 200/1 R₂ 125 % 200/1 XM Plug setting multiplier Time in seconds for A time multiplier of 1 R₁ 100% 2 10 3.6 6 ไ 2000 A F 5 8 3.9 3.15 2.8 2.2 10 15 20 2.1

Reference Fig. 2.19, given that fault current = 2,000 A, Relay 1 set on 100%; CT ratio = 200/1; Relay 2 set on 125%. For discrimination the time gradient margin between the relays in 0.5 second. Determine the time of operation of the two relays assuming that both the relays have the characteristic as shows in the following table and the relay number, I has a time multiplier setting = 0.2. 200/1 R₂ 125 % 200/1 XM Plug setting multiplier Time in seconds for A time multiplier of 1 R₁ 100% 2 10 3.6 6 ไ 2000 A F 5 8 3.9 3.15 2.8 2.2 10 15 20 2.1

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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