Bundle: Understanding Motor Controls, 4th + Mindtap Electrical, 2 Terms (12 Months) Printed Access Card
Bundle: Understanding Motor Controls, 4th + Mindtap Electrical, 2 Terms (12 Months) Printed Access Card
4th Edition
ISBN: 9780357097755
Author: Stephen L. Herman
Publisher: Cengage Learning
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Chapter 36, Problem 1RQ
To determine

Synchronous speed.

Expert Solution & Answer
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Explanation of Solution

Given information:

Number of poles per phase, P=6.

Frequency of the supply, f=20 Hz.

Calculation:

The synchronous speed is given by the formula:

  s=120fP=120×20Hz6=400 RPM

Thus, the synchronous speed of the motor is 400 RPM.

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