Title :
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
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;
Conference_Titel :
High Voltage Engineering and Application (ICHVE), 2012 International Conference on
Conference_Location :
Shanghai
Print_ISBN :
978-1-4673-4747-1
DOI :
10.1109/ICHVE.2012.6357075
