transformer question

[mitch cochrell]

I have a couple of machines I have to provide power to. They are both 480v 3 phase. I only have 120v/240v high leg service. What type of transformer do I need to make this work?

 

[Pierre C Belarge]

A delta/wye transformer sized to the loads. Possibly larger if you think there is the possibility of additional loads later.

 

[LarryFine]

A delta/wye transformer sized to the loads.

Would not a D-D also work?

 

[wireguru]

is the service open delta or do you have real 3ph high leg? Are you adding alot of load the poco doesnt know about?