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richwin
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Join Date: Jul 2010
Posts: 7

Transformer Winding Designations

07/23/2010 1:20 AM

What does Dd0, Dyn11, YNd5 etc. mean? At which transformer type and electrical system voltage application is for Dd0, dyn11, YNd5.

Please assist and recommends your inputs. Thank you very much.

Richwin
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Tornado
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Technical Fields - Technical Writing - New Member Engineering Fields - Piping Design Engineering - New Member

Join Date: May 2009
Location: Richland, WA, USA
Posts: 21017
Good Answers: 795
#1

Re: Transformer Winding Designations

07/23/2010 1:33 AM

This might help: http://www.google.com/search?sourceid=navclient&ie=UTF-8&rlz=1T4RNWN_enUS219US219&q=transformer+vector+group

__________________
 In vino veritas; in cervisia carmen; in aqua E. coli.
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electricalexpert65
Guru

Join Date: Oct 2009
Posts: 2061
Good Answers: 169
#2

Re: Transformer Winding Designations

07/23/2010 9:37 AM

If you can send me your e-mail ID thro this forum's mailbox, I will send you a paper authored by me on the subject. The paper is too big & with lot of diagrams to be conveniently posted here.
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Anonymous Poster
#3

Re: Transformer Winding Designations

07/26/2010 10:54 AM

Dear Sir,

It refers to the winding configaurtion of the primary/Secondary/Tertiary. Normally, the winding configuartion shall be Star,Delta or in cases Zig Zag Star.

Further, the 11, 5 etc. refers the Phase displacement of the winding among each other.

If any clarifiaction required, please revert.

Best Wishes,

N.Suresh
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Anonymous Poster
#4

Re: Transformer Winding Designations

07/29/2010 8:02 PM

Any information about the thickness of interlayer insulation paper available ?
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