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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Why DYN11 vector group used in Distribution transformer?

Also what does this mean: 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. Students Click Here Join Us! July 16, at 1: July 5, at 6: In this modern times is it need for sending power both ways in a transfomer. What is the meaning of Dyn11 of Transformer Shayaque Safi Feb 16, If You find this content in any other site,it makes the page you are viewing an infringement of the copyright.

Does the downstream transformer vektor groups have an effect on fault currents. He is Presently associate with one of the leading business group as a Deputy Manager at Ahmedabad,India. You are commenting using your WordPress. You are commenting using your Twitter account. Moreover the secondary is the 3 phase 4 wire system. By joining you are opting in to receive e-mail. March 12, at 5: For example, a transformer with a vector group of Dy1 has a delta-connected HV winding and a wye-connected LV winding.


In star-star transformer tranaformer can we do vector group test?? Post as a guest Name. Please fix these I have had two people this week give me wrong vector diagrams because they copied your errors. They are only degrees out of phase if you reversed the scope connections to one of the windings. This article needs additional citations for verification. Displacement of the vectors of other windings from the reference vector, with anticlockwise rotation, is represented by the use of clock hour figure.

August 13, at 1: Any specific transfformer for that?

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June 15, at 8: Unsourced material may be challenged and removed. Facebook Linkedin Google Plus Twitter. How to find out Different vector group?

Thanks in advance and hope in your notes Deepak. January 28, at 6: Probably your supply must be going 1.

Vector Group of Transformer | Electrical Notes & Articles

Trabsformer you wind two coils together on a core and you applied AC to one of them and then used an oscilloscope to look at the voltage waveforms on the driven coil and the undriven coil you will find that the two AC voltages are in phase.


Phase displacement expressed as the clock hour number.

August 13, at 6: But in your article it is mentioned as reverse order. March 7, at Separate single-phase transformers can be used and externally interconnected to yield the same results as a 3-phase unit.

This page was last edited on 30 Aprilat What i need if will install synchronizer generator to bus if VT sensing at before and after transformer?. October 17, at fransformer November 14, at Assuming Ynd1 Transformer with Zigzag connected on delta side for grounding purposes. You are requested please help me, I am electrical engineer and working for solar power plant first time.

Deepak Transformsr Mongia May 29, October 13, at Thank you very much Jignesh! Edvard Jun 03, Additional Note By doing some unconventional connections externally on both sides of the trsf, an internal connected groupIII or groupIV transformer can be changed to any of these two groups.

Hardly any power system adopts such a large variety of connections.