Identifying the Location of Disk to Disk Short-Circuit in Power Transformer by Means of Double-2d Finite Element Analysis

Short-circuit is known as one of the most important basis of the damages in power transformers, weakness of insulation, and many other reasons which would cause these minor faults To prevent these minor faults to be a major fault, a Sensitive and accurate technique in fault detection is used in this paper Frequency response analysis as a well-known and sensitive method of faith detection is coupled with Finite element analysis that is one of the most accurate methods of simulation A sensitive transfer function has been noticed in the winding of a three phase power transformer and the response is analyzed in wide band frequency in healthy state and also some faulty states Results of the simulation in these slates are compared for better and faster identification of minor faults. In order to enhance accuracy, double-2d simulation instead of 2d simulation is used and also magnetic and electric analyses are performed simultaneously which is new in these kinds of analyses Copyright (C) 2010 Praise Worthy Prize S.r.l. - All rights reserved.