대한전기학회:학술대회논문집 (Proceedings of the KIEE Conference)
- 대한전기학회 2009년도 제40회 하계학술대회
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- Pages.1471_1472
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- 2009
진공에서 절연체의 연면거리에 따른 파괴전압 분석
Analysis of Surface Flashover Depending on Insulator Gap Distance in Vacuum
- Yoon, Jae-Hun (Chungbuk University) ;
- Lim, Jong-Nam (Chungbuk University) ;
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Lim, Kee-Jo
(Chungbuk University) ;
- Kang, Seong-Hwa (Chungcheong University)
- 발행 : 2009.07.14
초록
In a wide variety of high-voltage applications surface flashover plays major role in the system's performance and yet has not been studied in great detail for vacuum conditions with modern diagnostic tools. surface flashover for both direct current and pulsed voltages in considered. within the setup, parameters such as geometry, material characteristics of the applied voltage can be altered. This paper review surface flashover of insulator, primarily in vacuum. It discusses theories and models relating to surface flashover and experimental results. surface flashover of insulators in vacuum generally is initiated by the emission of electrons from the cathode triple junction point (the region where the electrode, insulator, vacuum). the electrode material was copper, and a AC voltage was applied between the electrodes. these results were compared with the surface flashover characteristic of insulator at results, surface flashover influenced only insulator surface condition. and increasing vacuum pressure was risen breakdown voltage.
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