Transformers Question

Yes. Two ways that i know of. Open Delta and Scott.

Weblink: http://www.tpub.com/content/NAVFAC/mo201/mo2010063.htm

Look up Acme Transformers and download bulletin B-111704-C. I currently have a bank of two Acme T-2-53010-4S connected to 480VAC three phase to get 380VAC three phase for testing of equipment destined for locations in Asia. I only have to switch input and output and feed the 480VAC into the taps that were the 380VAC output and can get 600VAC for Canadien bound equipment. A slight re-arrangement of their taps and 240VAC three phase is also possible. Conversely, switching the inputs and outputs on any of the above and the inverse is also possible. (i.e - 480VAC from 380VAC) These transfomers have H1 thru H8 taps on the secondary to allow multiple voltage outputs.

I now understand, from another post, that the 380VAC would be better if generated by a VFD to allow us to also generate 50Hz from 60HZ for the 380VAC, but that is another subject.