How to make a three-phase transformer system using two single-phase transformers

Just count the number of primary and secondary windings that exist in your three transformer configurations (one 3Φ, three 1Φ, two 1Φ) and I believe you will immediately get your answer. Now one certainly can make a useful configuration with just two single phase transformers that are connected to three phase power, but this will not produce a three phase transformer.

On second thought, if you're willing to dismantle your two transformers down to core laminations and magnet wire then one can make a three phase transformer from two single phase transformers. It will certainly be easier and cheaper to just buy the correct transformer but it is possible.

I stand corrected. GA

Nothing. I was just discussing 3 phase transformers with a friend and that question came up. Searched the net but couldn't find anyting so i wrote here.

Thanks for the info, by the way.

If you ever get the opportunity to try in a practical situation please let us know the outcome.

shadow41; yes if only you have 3 phase to start with. perry

Perry

Suppose you only have two primary phase conductors. Are you saying it won't work?