> Wye doesn't have to have a center tap to neutral if the phases are loaded
> correctly.  With Delta, I don't know what you mean by "center tap of one
> phase."  And I definitely wouldn't connect any phase to neutral on delta
> unless you like to see a lot of sparks.  A direct connection to ground like
> that will probably blow apart your whole fuse box and take you with it.

The power company won't deliver power to you without a ground reference.
All the deltas I've ever seen(and it's true I haven't dealt with many)
have had the center of one phase grounded, and the furthest wire from that
is called the "stinger" (for good reason).

Cheers,

Bob

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