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Electric Motor Control

10th Edition
Herman
Publisher: CENGAGE L
ISBN: 9781133702818

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BuyFindarrow_forward

Electric Motor Control

10th Edition
Herman
Publisher: CENGAGE L
ISBN: 9781133702818
Chapter 21, Problem 5SQ
Textbook Problem
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After the forward coil has been energized, is the auxiliary forward interlocking contact open or closed?

To determine

Explain whether the auxiliary forward interlocking contact would open or close when the forward contactor coil is in energized condition.

Explanation of Solution

The reversal of direction of motor is accomplished by the reversing starters with the help of two contactors; one is used for forward direction and another is used for reverse direction.

An auxiliary contact interlocking is an electrical method for avoiding simultaneous energization of coil of two contactors. Refer to Figure 21-8 in the textbook...

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