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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February 7, at 7: Jignesh Sir, Thank u for trajsformer information. Assuming Ynd1 Transformer with Zigzag connected on delta transformwr for grounding purposes.

Is it ok at connection, what about distribution and how to nuetral earting. Notify me of new comments via email. I would like to add another interesting point: This is a fantastic tropics. February 22, at 9: Likewise, earth fault protection on the primary side is not affected by earth faults on the secondary side. Thanking sir K Mohana Krishna. Leave a Reply Cancel reply Enter your comment here From the article here I understood that secondary side winding is phase shift by 30 degrees with respect to primary side winding.

Vector group – Wikipedia

If You find this vcetor in any other site,it makes the page you are viewing an infringement of the copyright. December 1, at 1: This info is realy useful because the connections of vector groups r confusing me very much dny11 now i understand. July 5, at 6: Dear jignesh brother, Your electrical notes are very very helpful. For example, a step-up transformer with a wye-connected primary and a delta-connected secondaryis written as ‘Dy1’.


Am very happy and enjoy your vectog and details. Please reply me Please reply me Thanks again. The application is for a resort hotel.

Leave a Comment Click here to cancel reply. January 28, at 6: March 6, at 4: Use the hour indicator as the indicating phase displacement angle. Different combinations of winding connections will result in different phase angles between the voltages on transfoemer windings.

Thank you Regards Heri. Agbioeletric Balun Buchholz relay Bushing Center tap Circle diagram Condition monitoring of transformers Copper loss Dissolved gas analysis Electrical insulation paper Growler High-leg delta Induction regulator Leakage inductance Magnet wire Metadyne Open-circuit test Polarity Polychlorinated biphenyl Quadrature transformsr Resolver Resonant inductive coupling Severity factor Short-circuit test Stacking factor Synchro Tap changer Toroidal inductors and transformers Transformer oil Transformer oil testing Transformer utilization factor Vector group.

September 15, at 6: October 31, at 3: June 20, at 5: The two most common configurations are the delta, in which the polarity traansformer of goup winding is connected to the non-polarity end of the next, and the star, in which all three non-polarities or polarity ends are connected together. Pl comment on doubts raised on the content as the explanation taken in right earnest by many engineers.

Vector Group of Transformer

To find out more, including how to control cookies, see here: Add a review and help 80 Lakhs JobBuzz users to take better career decision. May 3, at Bob Robinson Jul 09, Chris Aug 21, From the Vector group YznII of transformeer particular transformer, how would you know that the Ratio test on the HV side of a transformer has failed?


Can we use YD7 in place of Yd1 generator transformer. He is Presently associate with one of the leading business group as a Deputy Manager at Ahmedabad,India. But if unbalancing is randomly on different phases then segregate 3 phase and 1 phase load; identify the load causing unbalancing and try to divide the single phase load equally on three phases for this you need to modify your distribution on different electrical panels and may be some wiring changes are also required for distributing the load.

Abdelazeem Feb 01, Thus, the yn side of the transformer is a ‘separately derived system’ in which all earth fault current must flow through the neutral of this transformer. Moreover, it vecttor be proved that two-phase, two-phase-to-ground and three-phase faults at the one side of such transformers give the same sag magnitude at the other side of the transformer under common assumptions used in short-circuit analysis.