Estimation of Electrical & Physical Characteristics by Thermal History in XLPE Insulation

XLPE 절연체에서의 열이력에 의한 전기, 물리적 특성 평가

  • Lee, Sang-Jin (Advanced R&D Center Electric Power Technology Group., LS Cable Ltd) ;
  • Shim, Sung-Ik (Advanced R&D Center Electric Power Technology Group., LS Cable Ltd) ;
  • Jeon, Seung-Ik (Advanced R&D Center Electric Power Technology Group., LS Cable Ltd)
  • 이상진 (LS전선 중앙연구소 전력기술그룹) ;
  • 심성익 (LS전선 중앙연구소 전력기술그룹) ;
  • 전승익 (LS전선 중앙연구소 전력기술그룹)
  • Published : 2008.05.30

Abstract

The aim of this study is to find out the effects of thermal aging condition on dielectric strength and degree of crtstallinity of XLPE insulation. Thermal properties of XLPE insulation were investigated by DSC(differential scanning calorimetry) and dielectric strength were analyzed using AC BDV tester. Aging of XLPE samples were conducted through different four conditions. The degree of crtstallinity and AC BDV were changed by thermal history. From these results, it can be suggested that DSC and AC BDV test are suitable for diagnostic method of extra high voltage XLPE cable.

Keywords