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.

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The answer will be useful for us to design. March 22, at If unbalancing pattern is always same phase wise then it will be easy to balance by withdrawing single phase load from R and putting it on B phase.

Understanding Vector Group of Transformer (part 1)

December 24, at 6: Farhaduzzaman Apr 05, Thank you so much very important knowledge Regards,M. The voltages will either be in-phase or displaced by deg. What would be the repercussion if the earthing transformer is not provided? Star connection fed to 3ph full wave diode bridge. Thank you very much Jignesh! R Answered by Raman jain more than 6 months ago Mostly Ynd11 vector group is used in distribution application because of 1.


This info is realy useful because the connections of vector groups r confusing me very much but now i understand. July 24, at 5: October 22, at 4: Thanks, To clearify my problem of vector group…transformer?

Vector group – Wikipedia

When you want to go for parallel you have to check follows. February 22, at 9: Views Read Edit View history. Secondly, can we opt for YnYno Transformer for grou; application apart from the above widely used vector group X-mer which will be more economical too.

September 27, at 7: Egbe, edigbo michael says: This is called a 30 degree phase shift. Your electrical notes are very very helpful. Email required Address never made public.

The phase angle of vecgor LV winding lags the HV by 30 degrees. Parmar Jignesh Parmar has completed M.

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

October 31, at 3: Radhakrishnan K A Dec 10, Please reply me Please reply me Thanks again. May 23, Comments.

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Sir, how we find out vector group from calculation, if vector group not mention on name plate? If not then why.

Vector Group of Transformer

Learn how your comment data is processed. The transformer is a stand alone and is NOT in parallel with any other device.

April 22, at 4: Gujarat Industries Power Co Ltd. March 6, at 4: May 6, at 7: Tech Power System ControlB. Thank you so much Jignesh sir, For sharing good article. Phase rotation is always anti-clockwise.