A single-phase source delivers power to three loads that are connected in parallel: (i) a resistive heater drawing 18 kW, (ii) a squirrel cage motor drawing 15 kVA at 0.92 power factor lagging, and (iii) a synchronous motor operating at 11 kW shaft power¹ (with 90% efficiency) and 0.95 power factor leading. • Draw the power triangle for each of the three parallel connected loads. • Determine the average power, reactive power and apparent power delivered by the source. Draw the source power triangle.

A single-phase source delivers power to three loads that are connected in parallel: (i) a resistive heater drawing 18 kW, (ii) a squirrel cage motor drawing 15 kVA at 0.92 power factor lagging, and (iii) a synchronous motor operating at 11 kW shaft power¹ (with 90% efficiency) and 0.95 power factor leading. • Draw the power triangle for each of the three parallel connected loads. • Determine the average power, reactive power and apparent power delivered by the source. Draw the source power triangle.

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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