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  1. #1
    Join Date
    Dec 2007
    Posts
    25

    Default Miller's 3 phase generator side of the Big Blue 500 & larger

    Can someone please explain the generator side of the Big Blue machines with respect to powering a 3 phase motor in an iron worker or plasma cutter?

    I have a '99 Thermal Arc Predator that has 480V three phase and it was purchased to power my Geka iron worker.

    Miller didn't offer any three phase engine drives then to the best of my knowledge either.
    When studying the literature on the BigBlue machines I see three phase but nothing as far a connectors, etc.
    Is the three phase for the welding circuitry only?

    Thanks,

    Tom

  2. #2
    Join Date
    Dec 2007
    Location
    Los Angeles
    Posts
    2,876

    Default

    50amps 3 phase 240v

    Nema 15-50r on the engine drive

    http://www.millerwelds.com/pdf/spec_sheets/ED11-0.pdf
    Ed Conley
    http://www.screamingbroccoli.net/
    MM252
    MM211
    Passport Plus w/Spool Gun
    TA185
    Miller 125c Plasma 120v
    O/A set
    SO 2020 Bender
    You can call me Bacchus

  3. #3
    Join Date
    Dec 2007
    Posts
    25

    Default

    Thanks Ed,

    No 480VAC only 240...

  4. #4
    Join Date
    Aug 2004
    Location
    Milan Michigan
    Posts
    1,725

    Default

    I'm pretty sure miller generators only run 230 volts whether it be single or 3 Phase, Cruizer would have more knowledge than I as to whether this could be changed.

    If you already have a generator set up to run it, why do you want to change.

  5. #5
    Join Date
    Oct 2004
    Location
    Edmonton, Alberta
    Posts
    7,846

    Default

    T-dyne Predator / t-bird and such are pure sine wave generators running at 460 3 phase. Had they been marketed as such, most would be around today. But they were marketed as welders, so most operators drove them into the ground.

    No the Big blues can't be set to 460, if thats what you are asking.

  6. #6
    Join Date
    Dec 2007
    Posts
    25

    Default

    That's what I was asking. I have a Predator and yes it's a 460VAC machine. The Italians do it a little different

  7. #7
    Join Date
    Aug 2004
    Location
    Milan Michigan
    Posts
    1,725

    Default

    Cruizer, Thanks for that info, do you have to order them one way other the other or can someone like you change it back and forth.

  8. #8
    Join Date
    Oct 2004
    Location
    Edmonton, Alberta
    Posts
    7,846

    Default

    Quote Originally Posted by Portable Welder View Post
    Cruizer, Thanks for that info, do you have to order them one way other the other or can someone like you change it back and forth.
    You can't buy a T-dyne pred/ T-bird or Wolfpack any more, so not sure which machine you mean.

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