Hairbrained Motor Retrofit Idea

Easier to get second 110 circuit from the other leg and then use a VFD. With the 2 110s giving the 220, you just need a VFD to run the motor.

A transformer like this - http://www.voltage-converter-transformers.com/step-up-down-transformer.html

What is the amp draw of the motor, could maybe give you what you need as a 3ph 220 motor draws less per leg than a single phase motor. One of the larger ones may work, but it depends on the wiring to your area. Is it limited to 14 gage 15 amp or is it better 12 gage 20 amps.

It is all about the amps(watts) available.
 
You don't say how many HP your mill motor has, but if it is no more than 1 HP, VFD's that operate off of 120V will work well for your application. I have a 1 HP 3 phase on my lathe and have to power it with a 120V VFD since I do not have 240V easily available - works fine.

Greg
 
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