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What is the rpm of electrical motors?

electrical motors RPM
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What is the rpm of electrical motors?

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To calculate the synchronous speed of an AC motor we use the following formula: (120 * frequency) / # of poles. Frequency are measured in Hz, while the number of poles are a function of design. For a 2 poles, 50 Hz motor the synchronous speed is: (120 * 50)/ 2 = 3000.

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