A three-phase motor has a nameplate that reads DUTY PLUGGING. This means that the motor A. is a low-current reversible motor with shaded poles. B. can expect to survive quick loading surges as it runs. C. has no provision for direct line connection. D. is rated for jog or inching duty.

A three-phase motor has a nameplate that reads DUTY PLUGGING. This means that the motor A. is a low-current reversible motor with shaded poles. B. can expect to survive quick loading surges as it runs. C. has no provision for direct line connection. D. is rated for jog or inching duty.

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 7RQ: A 100-HP three-phase squirrel-cage induction motor is connected to 480 volts. The conductors...

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Question

A three-phase motor has a nameplate that reads DUTY PLUGGING. This means that the motor

A. is a low-current reversible motor with shaded poles.
B. can expect to survive quick loading surges as it runs.
C. has no provision for direct line connection.

D. is rated for jog or inching duty.

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