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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Please give the detail procedure of vector group test with the example of. This vectoor specifically as distance from the source and voltage levels have effect.

Understanding Vector Group of Transformer (part 1)

It would be better if PDF format is available. Hai Parmar Sir your informations are very educative, basically Vectorr from instrumentation area. Beny pardede Apr 16, October 7, at 3: This helpful for all electrical engineer. July 31, at 9: December 20, at 4: How should I choose the vector group for each transformer. Please help improve this article by adding citations to reliable sources.

July 13, at 5: Introduction Three phase transformer consists of three sets of primary windingsone for each phase, and three sets of secondary windings wound on the same iron core. Retrieved from ” https: November 15, at 8: April 9, at 7: April 23, at 7: Ezeh Doris Oluchi Jan 09, You are requested please help me, I am electrical engineer and working for solar power plant first time.


For example, a step-up transformer with a wye-connected primary and a delta-connected secondaryis written as ‘Dy1’.

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

October 7, at 9: Email Please enter a valid email id. July 23, at 2: The phase relationship of the two voltages depends upon which way round the coils are connected. Symbol for the high voltage winding comes first, followed by the symbols of windings in diminishing sequence of voltage.

What will be vector group for that. It also matters if you have an auxiliary transformer connected to generator terminals.

To find out more, including how to control cookies, see here: December 12, at 8: I think clock — wise is correct. Don’t have an account? I will convert v to v.

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

When two transformers are connected in parallel, their phase shifts must be identical; if not, trxnsformer short circuit will occur when the transformers are energized. I work with power company ,please I will like transformerr know how load balancing. S Srinivasan Jan 03, May 27, at 1: October 21, at 7: Thanks Sir; Could you help me for my case. Is there any constraint in Yy0 configuration? Is it possible to build a transformer with the following spec:.


Nice explanation on vector groups of transformers. Transformer dyn11 a delta connected primary winding D a star connected secondary y with the star point brought out n and a phase shift of 30 deg leading In a system of 1 grid incomer connected gransformer Dy11 transformer and a local generator connected to Dy1 transformer is it possible to synchronise the two incomers? Parmar, While I appreciate your article on significance and selection of vector group of Transformers, pl.

Same way is it possible to suppress 7th harmonics also. As you know the distribution system normally on HV side connected in parallel and LV side radial.