The Skewness Properties at Interface in Mica-Epoxy Composite

마아카-에폭시 복합재료 계면에서의 왜도 특성

  • Lim, Jang-Seob (Department of Electrical Engineering, Chonnam National University) ;
  • Lee, Eun-Hak (Sam-An Consulting Engineering) ;
  • Gu, Hal-Bon (Department of Electrical Engineering, Chonnam National University) ;
  • Kim, Tae-Seoung (Department of Electrical Engineering, Chonnam National University)
  • Published : 1992.11.07

Abstract

In this paper, the skewness properties of partial discharge at interface layer in mica-epoxy composite material were investigated and studied on interface specimens which has internal electrodes. As a result, it has been confirmed that the interface exists as abnormal resin layer and the contact condition at the interface is depended upon the density of si lane aqueous solution. The Pulse frequency of discharge at abnormal interface has been shown a linear increasing with enlargement of discharge quantity according to rising of the applied voltage. Whereas, in case of normal interface, pulse frequency represented exponential increasing at the saturating point of discharge quantity. The aging model can be represented from the variable characteristics of skewness.

Keywords