How To Draw Vector Group Of Transformer

Let me know in a co gen power plant where export import of power is envisaged if the vector group ynd1 where in generator power transformers secondary winding is delta connected generator side and the distance of generator is within 100 meters from the stated transformer. What is the signification of checking vector group. Vector group is an essential characteristics of 3 phase transformer.
how to draw vector group of transformer

Three phase vector diagrams are commonly used to represent 3 phase transformers are known as transformer vector diagrams.

How to draw vector group of transformer. In this video we have explained how to draw the interconnection of transformer winding for different vector group. The phase sequence or the order in which the phases reach their maximum. Vector group test of transformer. Dd0 dyn5 dyn11 yyn0 yd1 yd11 dz0 yz1 and yz11.

Based from this we can say that this transformer connection belongs to the vector group ynd11. And also here i. For q1 there is no way to determine the vector group on a one line diagram except when explicitly labled. How to draw transformer vector group connectionelectrical technology duration.

With the wye side as the reference vector at 12 oclock we can draw the delta side vector at 11 oclock. How vector group is created in transformer. Electrical technology and industrial practice 26699 views. The vector group indicates the phase difference between the primary and secondary sides introduced due to that particular configuration of transformer windings connection.

Parmar while i appreciate your article on significance and selection of vector group of transformers pl. The numerical index of the vector group comes from the clock hour gure the phase voltage hand 2u is at when the phase voltage hand of the high voltage winding 1u is at 12 oclockthe systems phase sequence should be 1u iv 1w or r s and t. Application of various vector group. The vector group of transformer is an essential property for successful parallel operation of transformershence every electrical power transformer must undergo through vector group test of transformer at factory site for ensuring the customer specified vector group of transformer.

Please enable javascript and refresh the page to continue. The voltages of a three phase system is shown in the figure below. Why vector group is denoted with 0 to 11. The transformer vector group is indicated on the name plate of transformer by the manufacturer.

A transformer three phase vector diagram is required for determining the fault calculation of an electrical power systempractically almost every electrical power system deals with three phase power. The following are the most common three phase connections.