Electric Motor Control
10th Edition
ISBN: 9781133702818
Author: Herman
Publisher: CENGAGE L
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Chapter 56, Problem 2SQ
To determine
List the devices that are used to energize the magnetic clutch.
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What happens when the holding coil gets the supply in the magnetic controller?
List the probable causes if the armature dos notable release after the magnetic starter is de - energized .
list the probable causes if the armature does not release after the magnetic starter is de-energized?
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Electric Motor Control
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Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, electrical-engineering and related others by exploring similar questions and additional content below.Similar questions
- 5-What is the use of auxiliary contact in the magnetic controller?arrow_forwardA machine delivered for installation has a 2-inch pulley on the motor and a 6-inch pulley on the load. The motor nameplate reads 180 rpm. At what speed in rpm will the driven machine rotate?arrow_forwardWorn armature bearing can result in higher than normal starter cranking current draw ? True or falsearrow_forward
- What is the use of auxiliary contact coil gets the supply in the magnetic controller?arrow_forwardExplain about controlling torque using Spring control method. Please do not write the answer in a paper and answer the question briefly.Thank youarrow_forwardWhile discussing armature testing: Technician A says to test for shorts, place the ohmmeter leads on a commutator segment and armature shaft. Technician B says that continuity should exist between the commutator and the armature shaft. Who is correct?arrow_forward
- Identify and describe the basic functional elements that could be used in closed loop control for the following systems listed below. Include block diagrams for both, and give examples of sensors, controllers and actuators that would be used for both. 1) speed controlled electric motor 2) rollers in a steel strip meel being used to maintain a constant thickness of steel striparrow_forwardWhat is the difference bewteen a grounded control system And a floating control system?arrow_forwardA selector switch and two - wire pilot device cannot be used to control a large motor directly but rather must be connected to a magnetic starter. Why this is true.?arrow_forward
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