Title :
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
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;
Conference_Titel :
Electrical Insulation and Dielectric Phenomena (CEIDP), 2012 Annual Report Conference on
Conference_Location :
Montreal, QC
Print_ISBN :
978-1-4673-1253-0
Electronic_ISBN :
0084-9162
DOI :
10.1109/CEIDP.2012.6378833
