Calculation on electric field intensity of ultra-high voltage transformer coil

Author

Lv, Dianli ; Wang, Youhua ; Zhang, Huijuan ; Zhang, Ping ; Yan, Weili

Author_Institution

Province-Minist. Joint Key Lab. of Electromagn. Field & Electr. Apparatus Reliability, Hebei Univ. of Technol., Tianjin, China

Volume

4

fYear

2010

fDate

22-24 Oct. 2010

Abstract

The 3-D substantial model is built for the bushing end of an ultra-high voltage transformer high-voltage coil and the surrounding of the equipotential shielding. This model is properly simplified according to the symmetrical structure of the coil. The electric field intensity nearby the transformer´s high-intense coil and the surrounding of the equipotential shielding are calculated on the basis of the finite element method. The distribution of the electric field is determined, and the maximum electric field intensity at top and bottom are 8.02×10⁶ V/m and 6.67×10⁶ V/m, respectively. The calculated results can provide basis for coil and equipotential shielding design of an ultra-high voltage transformer.

Keywords

coils; electric fields; finite element analysis; potential transformers; electric field intensity; equipotential shielding; finite element method; ultra high voltage transformer coil; Coils; Electric fields; Oil insulation; Optimization; Power transformer insulation; electric field; finite element method; ultra-high transformer;

fLanguage

English

Publisher

ieee

Conference_Titel

Computer Application and System Modeling (ICCASM), 2010 International Conference on

Conference_Location

Taiyuan

Print_ISBN

978-1-4244-7235-2

Electronic_ISBN

978-1-4244-7237-6

Type

conf

DOI

10.1109/ICCASM.2010.5620515

Filename

5620515