An automotive alternator is rated 550 VA and 20 V. It delivers its rated voltamperes at a power factor of 0.90. The resistance per phase is 0.05 £2, and the field takes 2 A at 12 V. If the friction and windage loss is 35 W and the core loss is 40 W, calculate the percent efficiency under rated conditions.

An automotive alternator is rated 550 VA and 20 V. It delivers its rated voltamperes at a power factor of 0.90. The resistance per phase is 0.05 £2, and the field takes 2 A at 12 V. If the friction and windage loss is 35 W and the core loss is 40 W, calculate the percent efficiency under rated conditions.

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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