A 480-V, 60 Hz, 50-hp, three-phase induction motor is drawing 60A at0.85 PF lagging. The stator copper losses are 1.8 kW and the rotorcopper losses are 700 W. The friction and windage losses are 600W.The core losses are 1.8 kW and the stray losses are negligible. Find theairgap power in kW, and provide youir answer with one decimal place.Answer:

The input power of the induction motor is given by the expression, Pin=3VLILcosϕ Plugging the known…

A 480-V, 60 Hz, 50-hp, three-phase induction motor is drawing 60A at 0.85 PF lagging. The stator copper losses are 1.8 kW and the rotor copper losses are 700 W. The friction and windage losses are 60ow. The core losses are 1.8 kW and the stray losses are negligible. Find the airgap power in kW, and provide youir answer with one decimal place.

A 480-V, 60 Hz, 50-hp, three-phase induction motor is drawing 60A at 0.85 PF lagging. The stator copper losses are 1.8 kW and the rotor copper losses are 700 W. The friction and windage losses are 60ow. The core losses are 1.8 kW and the stray losses are negligible. Find the airgap power in kW, and provide youir answer with one decimal place.

Delmar's Standard Textbook Of Electricity

7th Edition

ISBN:9781337900348

Author:Stephen L. Herman

Publisher:Stephen L. Herman

Chapter32: Three-phase Motors

Section: Chapter Questions

Problem 13RQ: A squirrel-cage induction motor is operating at 1175 RPM and producing a torque of 22 Ib-ft. What is...

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