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Thread: 220V/208V?

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  1. 01-28-2011, 04:24 AM #1
    vpmachine
    vpmachine is offline Registered
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    220V/208V?

    i just got a small Boxford lathe with a 3phase motor ( unsure of h.p.) that works with 360v/208v 3 phase power (it is currently wired for 208v). My shop has 220v 3 phase power, I guess my question is how big of a fire would I start by running it on 220V 3 phase. Thanks for the help.

    Thanks,Vince
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  2. 01-28-2011, 05:06 AM #2
    Al_The_Man's Avatar
    Al_The_Man
    Al_The_Man is offline Community Moderator
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    You are probably not going to notice much difference, only if you start running at very high loads, the current may exceed the motor rating, so the load factor is something to watch for.
    If you install a VFD you can tailor it to suit the motor rating.
    Al.
    CNC, Mechatronics Integration and Custom Machine Design

    “Logic will get you from A to B. Imagination will take you everywhere.”
    Albert E.
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  3. 01-28-2011, 07:54 AM #3
    Ed from NY
    Ed from NY is offline Member
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    Quote Originally Posted by vpmachine View Post
    My shop has 220v 3 phase power...
    If you are in the US, and you are running a phase converter, and you do not have a transformer, chances are your power is 240V. Not that it makes much of a difference.
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