Art. 450 references these but appears to only refernce them as autotransformers.

With a Harmonic Migating Transformer, 480Dx208Y120, this would go back to seperate derived systems, would it not?

This is my first time installing them, and they appear to be a just a zig zag Y. And should be bonding and grounded just like a standard 208Y120, would they not?

Any I did a search and there is not too much info about these here, anyone have any pointers?

Would these require double size nuetrals similar to a K Factor?

Dnk.......

[This message has been edited by Dnkldorf (edited 09-23-2005).]