Answered: Let the three-phase electrical system…

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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Question

Let the three-phase electrical system be illustrated in Figure . Knowing that its phase sequence is ABC and that V_{cb=380∠135°V,} determine the following:

a) The value of the line currents demanded by each of the loads and supplied by the source.

b) The power and power factor of each load and source.

c) The power of the capacitor bank that must be installed to correct the power factor to 0.95 lagging.

d) The currents supplied by the source after installing the capacitor bank.

e) The percentage reduction of the total apparent power supplied by the source after installing the capacitor bank.

B
2+j3 2
10+8 2
2+j3 N
8-9 2
2+j3 2
12+j10 2

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