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    JINGLES5431's Avatar
    JINGLES5431 Posts: 1, Reputation: 1
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    #1

    May 1, 2011, 12:28 PM
    Will reversing ac polarity cause an ac motor to run backwards?
    In reference to single phase induction motors.
    tickle's Avatar
    tickle Posts: 23,796, Reputation: 2674
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    #2

    May 1, 2011, 12:38 PM

    No, more to it then just reversing polarity. You are thinking of the wrong principle. This would not happen with a single phase, maybe three phase electric motor. Why do you ask ?

    Tick
    Kyle_in_rure's Avatar
    Kyle_in_rure Posts: 341, Reputation: 10
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    #3

    May 1, 2011, 02:22 PM
    No, it shouldn't, but depending on what you are trying to run on reverse polarity you could get a nasty shock from the motor/appliance, etc. some things are only made to be ran polarized.
    ma0641's Avatar
    ma0641 Posts: 15,675, Reputation: 1012
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    #4

    May 1, 2011, 07:15 PM
    Although there is AC polarity, it changes 60 times a second. Only DC has true polarity. You may be able to reverse the motor if it says reversible and has a diagram on the end plate. However, a polarized plug is specifically designed to be wired with the large prong on neutral.
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