Understanding Motor Controls
3rd Edition
ISBN: 9781305498129
Author: Stephen L. Herman
Publisher: Cengage Learning
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Chapter 4, Problem 4RQ
To determine
Identify the type of thermal overload relay that can be set for manual or automatic operation.
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Understanding Motor Controls
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- An 11-pin control relay contains three sets of single-pole double throw contacts. List the pin numbers by pairs that can be used as normally open contacts.arrow_forwardWhen energizing or de-energizing a combination starter what safety precaution should always be taken?arrow_forwardThe motor nameplate of a wye-delta started motor has a full load current of 287 amperes. What current rating should be used to determine the proper overload heater size?arrow_forward
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