Proceedings of the Korean Institute of Electrical and Electronic Material Engineers Conference (한국전기전자재료학회:학술대회논문집)

The Korean Institute of Electrical and Electronic Material Engineers (한국전기전자재료학회)
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Effect of the Salinity Level on Tracking Characteristics of Polymer Insulators

폴래머애자의 트래킹 특성에 미치는 염수농도의 영향

  • 한재홍 (한국전력공사 전력연구원 배전기술그룹) ;
  • 송일근 (한국전력공사 전력연구원 배전기술그룹) ;
  • 김동명 (한국전력공사 전력연구원 배전기술그룹) ;
  • 정종욱 (한국전력공사 전력연구원 배전기술그룹)
  • Published : 2001.07.01
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Abstract

In order to investigate the effect of salinity level on tracking characteristics of polymer insulators for distribution power systems, tracking tests were performed by tracking wheel tester under different salt concentration. In this study, 6 kinds of polymer insulators were tested under 2200 ${\mu}\textrm{s}$/cm and 4000${\mu}\textrm{s}$/cm salinity. The salinity level has a significant effect on the tracking characteristics. Namely, most polymer insulators showed the good tracking resistance in case of low salinity level. But, in case of high salinity level some polymer insulators showed the excessive erosion and tracking. These phenomena may come from the different aging mechanism. It can be concluded that too high salinity level is not desirable in aging test of polymer insulators.

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