Understanding Motor Controls
4th Edition
ISBN: 9781337798686
Author: Stephen L. Herman
Publisher: Delmar Cengage Learning
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Question
Chapter 36, Problem 1RQ
To determine
Synchronous speed.
Expert Solution & Answer
Explanation of Solution
Given information:
Number of poles per phase,
Frequency of the supply,
Calculation:
The synchronous speed is given by the formula:
Thus, the synchronous speed of the motor is
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Chapter 36 Solutions
Understanding Motor Controls
Ch. 36 - Prob. 1RQCh. 36 - Prob. 2RQCh. 36 - If an alternator is used to provide variable...Ch. 36 - What solid-state device is generally used to...Ch. 36 - Why are SCRs used to construct a bridge rectifier...Ch. 36 - What is the main disadvantage of using SCRs in a...Ch. 36 - How are junction transistors driven into...Ch. 36 - What is the disadvantage of driving a junction...Ch. 36 - Prob. 9RQCh. 36 - In variable frequency drives that employ IGBTs,...
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