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Thread: 3-phase to 240v
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17th November 2018, 06:04 PM #1
3-phase to 240v
G’day Folks
Im seriously looking at purchasing a Mini Max combo machine that’s in pretty good nick. However it’s on 3-phase and I’ve only got 240 volts in my home workshop. Does anyone have any idea how much and how successful changing it to a single phase 240v would be?
Any input will be welcomed. Thank you.DustyDaz
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17th November 2018, 10:01 PM #2Senior Member
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Depends what type of motor is on it but you may be able to use a VFD.
Have a look at this thread there is an abundance of info.
VFD install summaries
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17th November 2018, 10:31 PM #3.
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I don't now about the MMC but the combination machines I've looked at have all used a 415V delta wired motor which cannot be converted to run-on 240V 3P.
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19th November 2018, 02:59 PM #4
two potential issues
how many motors does the machine have? -- depending on their size and the way they are mounted, you might be able to swap them out for 240V single phase motors -- the cost would likely be significant
will the 240V supply to your garage support the current draw of either a VFD or a 5 or 6 kW single phase motor? plus lights and a dust collector?
If the mini-max is at an attractive price, wiring the workshop for 3 phase might be a good option.regards from Alberta, Canada
ian
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19th November 2018, 05:42 PM #5SENIOR MEMBER
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Phase converter another option.
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21st November 2018, 02:11 PM #6
Thanks Hurcorh.
I was thinking of one of these but I’m not sure of how successful they are. Do you know what they’re like?DustyDaz
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21st November 2018, 02:19 PM #7GOLD MEMBER
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Phase converters are widely used in the US as three phase is not very common, people commonly build their own out of used motors for very cheap costs.
CHRIS
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