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  1. #1
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    Sep 2010
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    Default Single pahse rewire multi-voltage motor - help needed

    Hiya,

    I have an SCM FS-350 combination planer-thicknesser that is currently wired for 3-phase. As I don't now have access to 3-phase, I'd like to convert my machine to single phase.

    I do not want to, or need to, run a phase changer. My unit is fitted with a 3HP motor which is labeled as v220/240/380/415. Presumably, this means it will run on any of the above voltages when wired appropriately. Can someone out there help me with information or actually do the job for a fee. The Machine is at my temporary factory in Caulfield North, Vic.

    Thanks

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  3. #2
    Join Date
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    Default

    Those are 3phase voltages.
    220 to 240 connected in delta or 380 t0 440 connected in star. So you will need a phase changer or another motor.
    Regards,
    Hugh

    Enough is enough, more than enough is too much.

  4. #3
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    Default

    Thank you for the info.

    I can get a single phase metric frame motor to replace the existing. Could I reuse my existing switches?

  5. #4
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    Default

    May be with modification depending on type. It could need a 240 volt coil but on the other hand it may already have 240 volt control or be mechanical without a coil.
    Regards,
    Last edited by A Duke; 17th November 2010 at 09:46 PM. Reason: More info
    Hugh

    Enough is enough, more than enough is too much.

  6. #5
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    Default

    Would posting some pics of the switches and the wiring under the switch panel help?

  7. #6
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    I could probably give some more answers but at the end of the day you will need to get someone to check it out physically and do the job.
    Regards,
    Hugh

    Enough is enough, more than enough is too much.

  8. #7
    Join Date
    Sep 2010
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    Default

    I ended up replacing the multi-voltage 3-phase motor with a new Royce-Cross REMX 3HP single-phase motor and new overload. All up cost of only $380. Runs smooth and doesn't seem any less powerful under load than the 3-phase. Being cap-start, cap-run, it doesn't dim the lights on startup either. Only issue was the housing ontop of the motor for the wiring and capacitors was significantly bigger than the original. This necessitated using slightly smaller belts to stop that housing fouling the steel frame.

    Cheers


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