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  1. wment

    Electric motor RPM vrs Load

    I replaced a 1725 rpm motor on a compressor with a 3hp 3450rpm 220vac single phase motor. I am trying to determine the pully size. I want to spin the compressor as fast as possible. As the load increases on the motor (larger pully) the rpm drops. What is the lowest RPM I can run the motor at...

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