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How do I hook up 5 hp motor

Discussion in 'Electronic Basics' started by Nikki, Nov 28, 2004.

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  1. Nikki

    Nikki Guest

    Hi guys a friend of my husbands gave me an old 5 horse electric motor single
    phase 220 volts. It has no wiring diagram with it. there are 4 wires
    (black) in a metal box mounted on the side of the motor. Two of the black
    wires have an extra band of tape on them. If I take an meter to one of the
    banded wires and one of the not banded wires I get a short and the same
    thing with the other two. So would I take both banded wires to one side of
    the 220 and the other two not banded wires to the other side of the 220 or
    do they go in series
    I don't want to burn it out before I get to use it
    Thanks Guys
  2. Rich Grise

    Rich Grise Guest

    Take it to a qualified motor shop or a scrap dealer.

    There is no way anyone here is going to tell you any combination of
    hooking up a bunch of unknown black wires with "an extra band of tape on
    them" and connect it to mains of any kind.

    Even if you were able to discern the actual resistance of a winding - it's
    not a short, just typically less than one ohm - you have no way of
    checking their phasing. Two of them are probably the capacitor connection,
    but there's no way to tell.

    Do not under any circumstances connect that motor to any kind of mains
    power until it has physically been gone over by a qualified motor
    technician and deemed safe. And, the tech needs to be qualified to
    determine the proper phasing and capacitance of the start/run cap.

  3. Art

    Art Guest

    Totally agree!! Seen too many breakers, and caps damaged by someone
    experimenting with these connections, guessing at the appropriate hookups.
  4. Nikki

    Nikki Guest

    Thanks Guys
    That's what I did
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