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    ccleix's Avatar
    ccleix Posts: 2, Reputation: 1
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    #1

    Nov 3, 2015, 03:49 PM
    220v single phase motor run on two legs of three phase.
    Can a standard 220v motor that is run on a common 110/220v supply be run using two legs of a three phase system? I have seen it done and the motor runs but eventually fails. Is the failure caused by the phase difference ie: 120 deg vs. 180 deg voltages or different voltages in the three phase systems.
    Thanks for your reply.
    ebaines's Avatar
    ebaines Posts: 12,130, Reputation: 1307
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    #3

    Nov 6, 2015, 12:29 PM
    What is the voltage of the 3-phase? The voltage across any two legs would be greater than the voltage of each leg (though still a 60 Hz sine wave).

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