NDLI: Calculation of 3D electric field at the end insulation of transformer

Content Provider	IEEE Xplore Digital Library
Author	Shan Tao Zhang Peihong
Copyright Year	2011
Description	Author affiliation: College of Electrical & Electronic Engineering, Harbin University of Science and Technology, China (Shan Tao; Zhang Peihong)
Abstract	With the increase of voltage level, the operating reliability of transformer has an important effect on the power system. According to statistics, the power transformer fault is mostly due to the insulation breakdown, especially at the end insulation. In order to improve the design quality, a parametric design method is developed in this paper. A real transformer model is created by Pro/E, then the model is imported to FEM software Ansoft Maxwell to calculate the 3D distribution of electric field and voltage at transformer end insulation. This process can be repeated easily until the breakdown criteria is met. Considering the effect of yoke on electric field distribution, two calculation zones that are under yoke area and out of yoke area are chosen. Results show that the maximum electric field of out yoke area is a little greater than that of under the yoke area. The results have some meaning to transformer design.
Starting Page	460
Ending Page	463
File Size	1054659
Page Count	4
File Format	PDF
ISBN	9781457703980
e-ISBN	9781457703997
DOI	10.1109/IFOST.2011.6021063
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2011-08-22
Publisher Place	China
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Solid modeling Insulation insulation structure electric field distribution Computational modeling Windings transformer Three dimensional displays Numerical models Power transformer insulation
Content Type	Text
Resource Type	Article

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