Two balanced three-phase motors in parallel, an induction motor drawing 400 kW at 0.8 pf lagging and a synchronous motor drawing 150 kVA at 0.9 pf leading, are supplied by a balanced, three-phase, 4.16-kV source. Line impedances between the source and the load are neglected. a) Determine the power factor of the combined motor-load. b) Determine the magnitude of the line current in each motor. c) Determine the magnitude of the line current delivered by the source.

Two balanced three-phase motors in parallel, an induction motor drawing 400 kW at 0.8 pf lagging and a synchronous motor drawing 150 kVA at 0.9 pf leading, are supplied by a balanced, three-phase, 4.16-kV source. Line impedances between the source and the load are neglected. a) Determine the power factor of the combined motor-load. b) Determine the magnitude of the line current in each motor. c) Determine the magnitude of the line current delivered by the source.

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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