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#129847 - 09/23/05 02:21 PM Zig Zag Install  
Dnkldorf  Offline
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Joined: Dec 2004
Posts: 1,064
nowhere usa
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).]


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#129848 - 09/23/05 05:10 PM Re: Zig Zag Install  
Tesla  Offline
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Joined: Jun 2004
Posts: 1,273
Sacramento, CA
Go to…
http://en.wikipedia.org/wiki/Zigzag_transformer

A zigzag transformer is a special purpose transformer. It has primary windings but no secondary winding. One application is to derive an earth reference point for Y-delta transform. Another is to control harmonic currents.

Read it all...


Tesla

#129849 - 09/24/05 04:15 PM Re: Zig Zag Install  
Tesla  Offline
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Joined: Jun 2004
Posts: 1,273
Sacramento, CA


Tesla

#129850 - 09/24/05 05:33 PM Re: Zig Zag Install  
Dnkldorf  Offline
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Joined: Dec 2004
Posts: 1,064
nowhere usa
Thanks, I found the link you refered to in a search. I was hoping someone installed some of these and had any pointers.

Thanks for your input.

Dnk......



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