Industrial Motor Control
7th Edition
ISBN: 9781133691808
Author: Stephen Herman
Publisher: Cengage Learning
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Question
Chapter 34, Problem 1RQ
To determine
The electric component which is used to convert the AC voltage to DC voltage in large DC motor controllers.
Expert Solution & Answer
Explanation of Solution
The device which is used to convert the electrical energy into
In large DC controller motors, SCR (silicon controlled rectifier) is used to convert the AC voltage into DC voltage.
Thus, the electric component which is used to convert the AC voltage to DC voltage in large DC motor controllers is SCR.
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Chapter 34 Solutions
Industrial Motor Control
Ch. 34 - Prob. 1RQCh. 34 - Why is this component used instead of a diode?Ch. 34 - What is a freewheeling or kickback diode?Ch. 34 - Name two methods of sensing the current flow...Ch. 34 - Prob. 5RQCh. 34 - What unit controls the voltage applied to the...Ch. 34 - What device is often used to sense motor speed?
Ch. 34 - Prob. 8RQ
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Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, mechanical-engineering and related others by exploring similar questions and additional content below.Similar questions
- What is the function of a micro limit switch when used with a manual controller for a wound rotor motor?arrow_forward9arrow_forwardRefer to the schematic diagram in Figure 318. Assume that the motor is not running. When the third speed push button is pressed, the motor starts in its lowest speed. After a delay of 3 seconds, the motor accelerates to second speed and 3 seconds later to third speed. After a period of about 1 minute, the fourth speed push button is pressed, but the motor does not accelerate to fourth speed. Which of the following could cause this problem? a. Control relay CR2 coil is open. b. S2 contactor coil is open. c. CR3 coil is shorted. d. S3 contactor coil is open.arrow_forward
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