The figure above shows the percentage differential relay used for the protection of an alternator winding. The relay has a minimum pick up current of 0.2 ampere and has a percentage slope of 10%. A high resistance ground fault occurs near the grounded neutral end of the generator winding with the current distribution as shown. Assume a CT ratio of 400: 5; determine whether the relay will operate.

The figure above shows the percentage differential relay used for the protection of an alternator winding. The relay has a minimum pick up current of 0.2 ampere and has a percentage slope of 10%. A high resistance ground fault occurs near the grounded neutral end of the generator winding with the current distribution as shown. Assume a CT ratio of 400: 5; determine whether the relay will operate.

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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