What happen if we use DYn1 vector group for distribution transformer? that the structure DYn11 is also simple in comparison with some other vector groups. What is the meaning of Dyn11 of Transformer Answer / devidas. First symbol/ symbols, capital letters: HV winding connection. Second symbol/symbols, small. In theory a three-phase transformer works like three separate transformer’s rating plate. Dyn Yyn0. Yd1. Yd Dz0. Yz1. Yz

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November 15, at 3: Jacqueline Mukangala Nov 21, August 13, at 6: March 12, at 5: Displacement of the vectors of other windings from the reference vector, with anticlockwise rotation, is represented by the use of clock hour figure.

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phase shift – Transformer Design – Electrical Engineering Stack Exchange

This can be done by the positive effect of transformers of vector group 1, 5, 7 and 11 e. Dear Sir, I understood that the generator transformer vector group is delta at generator side and star in yard side.

The number is in units of 30 degrees. February 7, at 7: June 4, at 4: This is called a 30 degree phase eyn11.

If two transformers of different vector groups are connected in parallel then phase difference exist between the secondary of the transformers and large circulating current flows between the two transformers which is very detrimental. This site uses Akismet to reduce spam. In that case, can we connect the two distribution transformers with different vector group in parallel? Your electrical notes are very very helpful.


When two coil have opposite winding direction than Voltage induced in both coil are in opposite direction. In the system adopted by the IEC, the vector group is indicated by a code consisting of two or three letters, followed by one or two numeric digits. Why Vector group Yd3, Dy3 are omitted however they are possible connections?

Vector Group of Transformer | Electrical Notes & Articles

October 17, at 5: Download Now Defense manufacturing is all about project manufacturing and project accounting. But I want to know about the test methode and voltage relation of different type vector group. Very nice article but I think your Additive and Substractive diagram is not right. Thanks, To clearify my problem of vector group…transformer? March 18, at 1: I am creating a page about the transformers principle here http: July 12, at 6: Dyn11 means the Secondary side winding Trandformer lags the primary side winding Delta by Electrical Degrees.

May 29, at Srikant Apr 17, 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?


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The 21 being normal tap and having 25 taps is not unusual. What is the meaning of Dyn11 of Transformer.

July 24, at 5: It’s easy to join and it’s free. The secondary windings are connected similarly. October 15, at 5: Please what do I do on such load balancing. March 22, dyn1 Saha Feb 03, Home Questions Tags Users Unanswered.

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Vector group

The secondary windings are connected similarly. February 22, at 9: June 20, at 5: Parmar Jignesh Parmar has completed M. May 22, at 7: September 12, at 7: June 13, at 5: This position is always the reference point.

More Electrical Engineering Interview Questions. D- Delta Connection in HV side. The digits 0, 1, 11 etc relate to the phase displacement between transformsr HV and LV windings using a clock face notation.

March 14, at 3: If you say the rotation anti-clock then TR. In such case the GSU vector group will change or not.