Electric Motor Control
10th Edition
ISBN: 9781133702818
Author: Herman
Publisher: CENGAGE L
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Textbook Question
Chapter 31, Problem 1SQ
Excluding slip, at what speed (r/min) will an eight-pole, 60-hertz, 240-volt motor run?
Expert Solution & Answer
To determine
Calculate the speed in rpm for of an eight pole,
Answer to Problem 1SQ
The speed in rpm of a squirrel cage induction motor is
Explanation of Solution
Given data:
The number of poles
The frequency
The line voltage
Formula Used:
Write the expression to calculate the speed in rpm of a squirrel cage induction motor.
Calculation:
The total number of poles in the motor is
Substitute
Conclusion:
Thus, the speed in rpm of a squirrel cage induction motor is
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Chapter 31 Solutions
Electric Motor Control
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