Influence of nanoparticles on the surface discharge marks in oil-pressboard insulation

Author

Yilong, Chen ; Chengrong, Li ; Yuefan, Du ; Bo, Qi ; Yuzhen, Lv ; Xiaoxin, Li ; You, Zhou ; Youping, Tu

Author_Institution

Beijing Key Lab. of High Voltage & EMC, North China Electr. Power Univ., Beijing, China

fYear

2012

fDate

14-17 Oct. 2012

Firstpage

517

Lastpage

520

Abstract

It recently has shown that nanoparticles can improve the electric properties of transformer oil when it is added in the oil. This paper investigated the effects of nanoparticles on oil impregnated pressboard in terms of the surface discharge development, the surface tracking marks, and the material trapping properties. It is found that the nanoparticles can increase the shallow trap density in the oil impregnated pressboard, resulting in less carbonized tracking marks on the pressboard surface.

Keywords

nanoparticles; power transformer insulation; transformer oil; carbonized tracking marks; material trapping properties; nanoparticles; oil impregnated pressboard insulation; pressboard surface; surface discharge development; surface discharge marks; surface tracking marks; transformer oil electric properties; Dielectrics; Discharges (electric); Nanoparticles; Oil insulation; Partial discharges; Surface discharges; Temperature measurement;

fLanguage

English

Publisher

ieee

Conference_Titel

Electrical Insulation and Dielectric Phenomena (CEIDP), 2012 Annual Report Conference on

Conference_Location

Montreal, QC

ISSN

0084-9162

Print_ISBN

978-1-4673-1253-0

Electronic_ISBN

0084-9162

Type

conf

DOI

10.1109/CEIDP.2012.6378833

Filename

6378833