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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 59, Problem 14SQ
Textbook Problem
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Why must the relay connections be moved around the circuit?

To determine

Explain the reason for relay connections that must be moved around a circuit.

Explanation of Solution

Discussion:

Refer to Figure 59-6 in the textbook for finding an intermittent fault. Connect the equipment such as test relay with its normally open contact, relay coil, test leads, alligator clips, and interlock as shown in the figure.

Connect the test relay across the suspected circuit (motor and overload protective equipment). The test relay must be moved around the circuit in order to close the fault...

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