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.

Anyway have fun,
Tony

-----Original Message-----
From: Bob Blick [mailto:bblick@SONIC.NET]
Sent: Tuesday, June 18, 2002 1:40 PM
To: PICLIST@MITVMA.MIT.EDU
Subject: Re: [EE]: Russia 380VAC three phase power Delta or Wye?


> Just courious, what is 'wye' ?

Hi Tal,

Wye takes one leg of each phase and connects to neutral, so you have three
"hot" legs and one neutral in the center. Sort of like the letter "Y".

Delta connects the three phases in a loop. Neutral is usually the center
tap of one phase, or one corner sometimes.

Cheers,

Bob

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