250 volts to 220 volts

Old 02-20-15, 04:22 PM
ray2047's Avatar
Join Date: Mar 2006
Location: USA
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You are looking for a transformer at least one hundred time larger then the one in your link. At least 10KVA (10,0000 volt/amps) and that is only if it has no motors.

Call the manufacturer. As PCBoss and others have written ask them if it will work on 240 single phase. Ask for the assurance in writing. If they say it won't ask how much to convert to 240 volt. It may be less then the cost of a transformer.

Plan B find a local company that repairs that kind of equipment and ask for an evaluation.
Old 02-20-15, 07:24 PM
Join Date: Mar 2006
Location: Wet side of Washington state.
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Ray, one of the "quirks" of a buck-boost transformer is that it is sized to the voltage difference and not the total kVA of the load. Because of this the kVA size of the B-B transformer is just a fraction of what it would be for a regular transformer.

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