Sealing Integrity of polymeric ZnO Surge Arresters

고분자 피뢰기의 기밀특성에 관한 연구

  • Liang, He-Jin (Department of Electrical Engineering, Tsinghua University) ;
  • Han, Se-Won (Insulator and Arrester Tech, Team, Division of Electrical materials, KERI) ;
  • Cho, Han-Goo (Insulator and Arrester Tech, Team, Division of Electrical materials, KERI) ;
  • Kim, In-Sung (Insulator and Arrester Tech, Team, Division of Electrical materials, KERI)
  • Published : 1997.11.01

Abstract

The sealing integrity is related to the safe operation of arrester the prime failure reason of porcelain housed arresters is moisture ingress. To be a meaningful tests a polymer arrester sealing test must be a realistic acceleration of field service. We think the test should be an accelerating course of actual temperatures, the enduring property to mechanical load and temperatures should be considered together. A union test method consisting of the thermal mechanical test and thermal cycling test is proposed to test the sealing integrity of polymeric arresters, which uses dielectric loss, leakage current 1mA DC voltage and partial discharge as the diagnostic techniques, and the test results were presented. The comparison states that the TMTCUT method is suitable fur the test of sealing integrity of polymeric arresters. .

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