Answered: Calculate the line current drawn by the…

Calculate the line current drawn by the following 50 kVA three-phase load at unity power factor, power factor 0.9 lagging and 0.9 leading. The rated voltage of the load is 480 V.

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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Concept explainers

DC Generator

An electromechanical machine which converts input mechanical energy to respective output electric energy is called a generator.

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Calculate the line current drawn by the following 50 kVA three-phase load at
unity power factor, power factor 0.9 lagging and 0.9 leading. The rated voltage
of the load is 480 V.
R₁
Vin
X₁
RFe
Xu N₁
N₂
R₁
X₁
Z
R₁=0.4N, R₂=4mN, X₁=0.9N, X₂=9m 2, RFe=5k, Xµ=0.75kN, E₁=4800, E₂=480

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A three phase motor draws 30 kVA at 0.80 power factor lagging from a 480 V three phase generator. It is desired to connected a capacitor bank in parallel to make the combined power factor 0.94 lagging a) Find the VAR rating of the capacitor bank b) The line current before and after adding the capacitor bank.