Proceedings of the KIEE Conference (대한전기학회:학술대회논문집)

The Korean Institute of Electrical Engineers (대한전기학회)
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Comparison on electrical characteristic changes of ZnO Arrester Blocks by Lightning Impulse Current

ZRO 피뢰기 소자의 뇌충격전류에 의한 전기적 특성 변화 비교

  • 한주섭 (한국해양대학교 전기공학과) ;
  • 박영호 (한국해양대학교 전기공학과) ;
  • 길경석 (한국해양대학교 전기공학과) ;
  • 김찬영 (한전전력연구원 전력계통연구실)
  • Published : 1999.11.20
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Abstract

This paper describes the comparison results on electrical characteristic changes of ZnO blocks by lightning impulse current. The five types of ZnO blocks used in lightning arrester for distribution lines have been estimated repeatedly till about 400 times by a standard lightning impulse current of 3kA, $8/20{\mu}s$, and changes of the performance characteristics of them to operation times were examined and compared quantitatively every fifty times discharge. It is expected that the result will be useful to diagnose the soundness of ZnO blocks or lightning arresters, and to develope deterioration diagnosis device for them.

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