A 25-HP, continuous-duty, three-phase squirrel-cage induction motor is connected to a 240-volt line. The conductors are run in conduit to the motor. The motor does not have a NEMA design code listed on the nameplate. The termination temperature rating of the devices is not known. Copper conductors with THWN insulation are to be used for the motor connection. What size conductors should be used?

A 25-HP, continuous-duty, three-phase squirrel-cage induction motor is connected to a 240-volt line. The conductors are run in conduit to the motor. The motor does not have a NEMA design code listed on the nameplate. The termination temperature rating of the devices is not known. Copper conductors with THWN insulation are to be used for the motor connection. What size conductors should be used?

Delmar's Standard Textbook Of Electricity

7th Edition

ISBN:9781337900348

Author:Stephen L. Herman

Publisher:Stephen L. Herman

Chapter34: Motor Installation

Section: Chapter Questions

Problem 9RQ

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