A motor is tripping out on overload. The motor nameplate reveals a full load current of 68 amperes. When the motor is operating under load, an ammeter indicates the following: Phase # 1=106 Amps, Phase #2=104 Amps, and Phase #3=105 Amps. The motor has been in service for six months. What is most likely the problem?

A motor is tripping out on overload. The motor nameplate reveals a full load current of 68 amperes. When the motor is operating under load, an ammeter indicates the following: Phase # 1=106 Amps, Phase #2=104 Amps, and Phase #3=105 Amps. The motor has been in service for six months. What is most likely the problem?

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 3PA: You are an electrician working in an industrial plant. A 30-hp three-phase squirrel- cage motor...

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