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    woody108's Avatar
    woody108 Posts: 1, Reputation: 1
    New Member
    		  
    #1

    Dec 29, 2008, 08:52 AM
    Generator wiring
    I have a generator with a 4 wire plug and want to backfeed it into my 3 wire plug from my air compressor. Do I run four wire out of the generator and then combine the nuetral and ground together at the 3 wire plug?
    crigby's Avatar
    crigby Posts: 4,343, Reputation: 107
    Outdoor Power Equipment Expert
    		  
    #2

    Feb 1, 2009, 09:40 AM

    Hi,
    No you would typically put the ground to the frame of the machine and then run a ground from the machine to an "earth" ground. This is for safety. The neutral and ground "should" be at the same potential, but are often just close with the neutral being slightly "off" ground.
    Peace,
    Clarke
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