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Journal of the Korean Institute of Illuminating and Electrical Installation Engineers

ISO Journal TitleJ Korean Inst. IIIum. Electr. Install. Eng.
Title The Electric Field Analysis of 2[MVA] Mold Transformer Considering the Void Effect in the Insulating Material
Authors Chang-Eob Kim ; Mun-Ho Jeon ; Suk-Won Lee
DOI http://dx.doi.org/10.5207/JIEIE.2010.24.4.177
Page pp.177-184
ISSN 1225-1135
Keywords Mold Transformer ; Electric Field ; Void ; Finite Element Method
Abstract This paper presents the electric field analysis for 2[MVA] mold transformer using finite element method. The electric field was calculated for the voltage applied to the mold transformer without voids in the insulating material. Then, it was analysed the maximum electric field when the voids was in the insulating materials. And the starting voltage of partial discharge was predicted due to the voids. The effects of voids in epoxy resin on the electric field were investigated for different sizes, shapes, positions and arrangements of voids.