Understanding Motor Controls
3rd Edition
ISBN: 9781305498129
Author: Stephen L. Herman
Publisher: Cengage Learning
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Chapter 4, Problem 1RQ
To determine
Identify the two basic types of overload relays.
Expert Solution & Answer
Explanation of Solution
Overload relays are used to protect the motor from overloading by sensing the current flow in the motor.
The two basic types of overload relays are as follows:
- Thermal overload relay
- Magnetic overload relay
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What is the weight of a 5-kg substance in N, kN, kg·m/s², kgf, Ibm-ft/s², and lbf?
The weight of a 5-kg substance in N is 49.05
N.
The weight of a 5-kg substance in kN is
KN.
The weight of a 5-kg substance in kg·m/s² is 49.05
kg-m/s².
The weight of a 5-kg substance in kgf is 5.0 kgf.
The weight of a 5-kg substance in Ibm-ft/s² is 11.02 lbm-ft/s².
The weight of a 5-kg substance in lbf is 11.023
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Understanding Motor Controls
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