Concept explainers
Excluding slip, at what speed (r/min) will an eight-pole, 60-hertz, 240-volt motor run?

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
EBK ELECTRIC MOTOR CONTROL
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