Q1) Consider the following 220 V/50 Hz TN-C network with an isolation fault atLl.RB12-2RL₁ =RPEN=0,52LIAPENBa) Calculate the fault voltage VFb) Now assume that RB2= RB1 is connected between the points A and B. Calculatenow the new fault voltage.c) Assume that the device is protected by 35 A gG fuse. In case a) (No RB2):When is the earliest tripping time of the fuse.When is the sure tripping time of the fuse.d) Find whether a B32 circuit breaker is an allowed protection device for thisnetwork or not.e) Find whether a C32 circuit breaker is an allowed protection device for thisnetwork or not.

Answered: Image /qna-images/answer/27bf30e3-d655-4343-afce-38f8218703ad.jpg

Answered: Q1) Consider the following 220 V/50 Hz…

Power System Analysis and Design (MindTap Course List)

6th Edition

ISBN:9781305632134

Author:J. Duncan Glover, Thomas Overbye, Mulukutla S. Sarma

Publisher:J. Duncan Glover, Thomas Overbye, Mulukutla S. Sarma

Chapter7: Symmetrical Faults

Section: Chapter Questions

Problem 7.21MCQ

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