"Unless you need the 3 phase for some equipment there is no point in having a "120/240/" 3 phase system. I say that because you will not be able to use the high leg for anything on 120v. or 240v. single phase."

This is partly true. With a high leg delta system you have 240V between any two phases, so you could use the high leg and one other to run a 240V single phase appliance (if the breaker is rated to handle the high leg voltage).

[This message has been edited by EASports (edited 11-01-2006).]