A 360-V 50-Hz, 50-hp three-phase induction motor draws 45 A at 0.65 PF lagging. The rotor copper losses are 400W. The friction and windage losses are 300W, the core losses are 1150 W, the stray losses are 230W, and the efficiency is 87%. Find: 1. The air-gap power. 2. The stator copper losses.
A 360-V 50-Hz, 50-hp three-phase induction motor draws 45 A at 0.65 PF lagging. The rotor copper losses are 400W. The friction and windage losses are 300W, the core losses are 1150 W, the stray losses are 230W, and the efficiency is 87%. Find: 1. The air-gap power. 2. The stator copper losses.
Introductory Circuit Analysis (13th Edition)
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ISBN:9780133923605
Author:Robert L. Boylestad
Publisher:Robert L. Boylestad
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Transcribed Image Text:A 360-V 50-Hz, 50-hp three-phase induction motor draws 45 A at 0.65 PF lagging. The
rotor copper losses are 400W. The friction and windage losses are 300W, the core losses
are 1150 W, the stray losses are 230W, and the efficiency is 87%. Find:
1. The air-gap power.
2. The stator copper losses.
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