대한전기학회:학술대회논문집 (Proceedings of the KIEE Conference)
- 대한전기학회 1998년도 하계학술대회 논문집 D
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- Pages.1459-1461
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- 1998
피뢰기 소자(ZnO)의 열화특성에 관한 연구
The Study on the Aging Characteristics of the Arrester Block(ZnO)
- Kim, Chan-Young (Korea Electric Power Research Institute(KEPRI)) ;
- Song, Il-Keun (Korea Electric Power Research Institute(KEPRI)) ;
- Kim, Ju-Yong (Korea Electric Power Research Institute(KEPRI)) ;
- Jeoung, Nyeon-Ho (Korea Electric Power Research Institute(KEPRI))
- 발행 : 1998.07.20
초록
This paper provides the results of analysis of lightening arrester failed in the field. XRD was used for qualitative analysis and SEM for microstructure analysis of zinc oxide (ZnO) block. The failure of lightening arrester might occur due to the following reasons: the uneven size of zinc oxide grains and cement layers. the re-crystallization of zinc oxide grains resulting from electrical stress around impurities, and the presence of too large pores(
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