Proceedings of the Korean Institute of Electrical and Electronic Material Engineers Conference (한국전기전자재료학회:학술대회논문집)
- 2004.07a
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- Pages.477-480
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- 2004
Partial Discharge Characteristics of Ultra-High Voltage Cable Insulators by Needle Electrode
침 전극에 의한 초고압 케이블 절연재료의 부분방전 특성
- Kim, Gyun-Sig (Kwangwoon Univ.) ;
- Choi, Beom-Kyu (Kwangwoon Univ.) ;
- Byun, Doo-Gyoon (Kwangwoon Univ.) ;
- Cho, Kyung-Soon (Seoil College) ;
- Kim, Gwi-Yeol (Korea Univ. of Technology and Education) ;
- Lee, Chung-Ho (Chungju National Univ.) ;
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Hong, Jin-Woong
(Kwangwoon Univ.)
- Published : 2004.07.05
Abstract
In other to estimate an electrical properties of the cross linked polyethylene cable, the partial discharge properties due to charge of electrode shape(needle and bar) and void size were investigated at room temperature. Fast trip and breakdown time were appeared by the closed of needle electrode. The trip and breakdown voltage depend on insulator thickness. As the result, confirmed larger effect of void size than effect of insulator thickness. The effect of voids size than influence of insulation thickness was dominated by internal an electrode of inner insulators.