An automotive alternator is rated 500 VA and20 V. It delivers its rated voltamperes at a powerfactor of 0.85. The resistance per phase is 0.05Ω , andthe field takes 2 A at 12 V. If the friction and windageloss is 25 W and the core loss is 30 W, calculate thepercent efficiency under rated conditions.
An automotive alternator is rated 500 VA and20 V. It delivers its rated voltamperes at a powerfactor of 0.85. The resistance per phase is 0.05Ω , andthe field takes 2 A at 12 V. If the friction and windageloss is 25 W and the core loss is 30 W, calculate thepercent efficiency under rated conditions.
Introductory Circuit Analysis (13th Edition)
13th Edition
ISBN:9780133923605
Author:Robert L. Boylestad
Publisher:Robert L. Boylestad
Chapter1: Introduction
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An automotive alternator is rated 500 VA and
20 V. It delivers its rated voltamperes at a power
factor of 0.85. The resistance per phase is 0.05Ω , and
the field takes 2 A at 12 V. If the friction and windage
loss is 25 W and the core loss is 30 W, calculate the
percent efficiency under rated conditions.
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