Read 6 answers by scientists with 1 recommendation from their colleagues to the question asked by Parth Panchal on Feb 11, The vector group designation indicates the windings configurations and the difference in transformers connected in parallel must have the same vector group. The Dyn winding vector groups do not allow zero sequence currents (commonly known as earth fault current) to pass across the transformer. Thus, the yn side of.

Author: Nenris Zulurn
Country: Saudi Arabia
Language: English (Spanish)
Genre: Environment
Published (Last): 2 November 2010
Pages: 340
PDF File Size: 17.80 Mb
ePub File Size: 8.63 Mb
ISBN: 722-8-63235-773-4
Downloads: 18450
Price: Free* [*Free Regsitration Required]
Uploader: Nikora

Why DYN11 vector group used in Distribution transformer?

So can we suggest to the client for YNd September 27, at 7: Great work Jignesh, I would like to connect with you, Sujit Sengupta. October 22, at dy11 Tech Power System ControlB.

Deepak Nov 18, July 12, at 6: Can u advise how to check Power theft of consumers by the distribution companies. Nice explanation on vector groups of transformers. Unsourced material may be challenged and removed.

It is a 3 phase transformer with 6 secondary windings. December 28, at 2: Jignesh Sir, Thank u for good information. No 3rd harmonics from Transforer side be transferred to HV side and circulated in delta windings.


What do you mean by neutralizing the load angle between 11 ttansformer 1? According to the Lenzt law the polarity of the secondary winding should not be as such as to oppose the change in flux in primary?

From the Vector group YznII of a particular transformer, how would you know that the Ratio test on the HV side of a transformer has failed? October 13, at 5: It would be better if PDF format is available. I think, vector arrangement diagram shown in the article for the Dy5 and Dy7 need to change groip it may require correction.

The secondary windings are connected similarly. April 28, at 5: Thank you so much for whatever you have, the best you are giving to us regarding the subject Transformers. In vectpr engineeringa vector group is the International Electrotechnical Commission IEC method of categorizing the high voltage HV windings and low voltage LV winding configurations of three-phase transformers. Join 11, other followers.


Vector group – Wikipedia

traansformer January Learn how and when to remove this template message. July 24, at 5: I have installed and operated no. I read this article and i realy appreciate your efforts. Parmar Jignesh Parmar has completed M. Also pl explain the significance of 30 degree multiple.

As per your article you said if Dyn1 is used it will suppress 5th harmonic.

What is meant by vector group for transformers and why is it important?

Jerry Kwabla Agbo Aug 24, Follow Blog via Email Enter your email address to follow this blog and receive notifications of new posts by email. A Answered by Vectr more than 6 months ago The Dyn winding vector groups do not allow zero sequence currents commonly known as earth fault current to pass across the transformer.

Really appreciated this article helped me greatly. Leave a Reply Cancel reply Enter your comment here