Study on the breakdown and dielectric characteristics of Kraft Paper mixed with MMT

Author

Wu, Weiqiang ; Liao, Ruijin ; Zhang, Fuzhou ; Yang, Lijun

Author_Institution

State Key Lab. of Power Transm. Equip. & Syst. Security & New Technol., Chongqing Univ., Chongqing, China

fYear

2012

fDate

17-20 Sept. 2012

Firstpage

199

Lastpage

202

Abstract

It is the Kraft-MMT(K-MMT) which was composited with various percentage of MMT(Montmorillonite) that were prepared to be stirred in deionized water with different time to reinforce the properties of Kraft Paper. The breakdown and relative dielectric characteristics of K-MMT were investigated. According to corresponding data analysis,we concluded that the breakdown voltage of K-MMT (immerged oil) was increased more than 18 percent to 60kV/mm at 9 percent of MMT after 12 mins stirring. However,with the increasing of mixed MMT, the relative dielectric constant showed a trend of reduction correspondingly. The relative dielectric constant ranged from 2.29 to 2.42 at the frequency of 50 Hz.

Keywords

clay; data analysis; electric breakdown; paper; permittivity; power transformer insulation; transformer oil; K-MMT; breakdown voltage characteristics; data analysis; dielectric characteristics; frequency 50 Hz; kraft-MMT paper; montmorillonite; oil immersion; relative dielectric constant; time 12 min; transformer; water deionization stirring; Dielectric constant; Electrodes; Minerals; Oil insulation; Power transformer insulation; Kraft-MMT; breakdown characteristic; dielectric constant;

fLanguage

English

Publisher

ieee

Conference_Titel

High Voltage Engineering and Application (ICHVE), 2012 International Conference on

Conference_Location

Shanghai

Print_ISBN

978-1-4673-4747-1

Type

conf

DOI

10.1109/ICHVE.2012.6357075

Filename

6357075