ECN Electrical Forum - Discussion Forums for Electricians, Inspectors and Related Professionals
ECN Shout Chat
Shout Box
Recent Posts
Led Strips
by KevinL. 10/23/18 12:22 AM
Lighting Plan
by KevinL. 10/23/18 12:11 AM
Brookstone Wireless Speakers Recalled
by Admin. 10/22/18 11:23 PM
Briggs & Stratton Recalls Fuel Tank Caps
by Admin. 10/22/18 11:16 PM
New in the Gallery:
What is this for?
Plug terminals
Who's Online Now
0 registered members (), 23 guests, and 26 spiders.
Key: Admin, Global Mod, Mod
Previous Thread
Next Thread
Print Thread
Rate Thread
Zig Zag Install #129847
09/23/05 03:21 PM
09/23/05 03:21 PM
D
Dnkldorf  Offline OP
Member
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).]

Tools for Electricians:
Re: Zig Zag Install #129848
09/23/05 06:10 PM
09/23/05 06:10 PM
T
Tesla  Offline
Member
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
Re: Zig Zag Install #129849
09/24/05 05:15 PM
09/24/05 05:15 PM
T
Tesla  Offline
Member
Joined: Jun 2004
Posts: 1,273
Sacramento, CA


Tesla
Re: Zig Zag Install #129850
09/24/05 06:33 PM
09/24/05 06:33 PM
D
Dnkldorf  Offline OP
Member
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......


Featured:

2017 Master Electrician Exam Preparation Combos
2017 NEC Electrician
Exam Prep Combos:
Master / Journeyman

 

Member Spotlight
waymag
waymag
dallas, texas, USA
Posts: 68
Joined: January 2002
Show All Member Profiles 
Top Posters(30 Days)
sparky 11
Admin 7
Popular Topics(Views)
250,663 Are you busy
188,143 Re: Forum
177,831 Need opinion
Powered by UBB.threads™ PHP Forum Software 7.6.1
(Release build 20180101)
Page Time: 0.019s Queries: 14 (0.004s) Memory: 0.9590 MB (Peak: 1.0891 MB) Zlib enabled. Server Time: 2018-10-23 16:12:18 UTC