Proceedings of the KIEE Conference (대한전기학회:학술대회논문집)
- 2008.07a
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- Pages.462-463
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- 2008
A Study on Life Expectancy Forecast for Porcelain Insulators
송전용 자기애자의 수명 평가 연구
- Lee, Won-Kyo (KEPRI (Korea Electric Power Research Institute)) ;
- Choi, In-Hyuk (KEPRI (Korea Electric Power Research Institute)) ;
- Hwang, Kab-Cheol (KEPRI (Korea Electric Power Research Institute)) ;
- Choi, Han-Yeol (KEPCO(Korea Electric Power Corporation))
- Published : 2008.07.16
Abstract
36,000lbs porcelain insulators (D-1995, D-1997, D-2002) investigated mechanical and electrical qualities, which were installed in the Korea 154kV transmission lines. This paper assessed Weibull distribution function, quality index, and uniformity index to forecast the remaining life expectancies of insulators. Applying Weibull distribution function on year lapse change test, electro-mechanical failing load test, and HRB values confirmed a significant degree of correlation. Statistically calculating the life expectancy through quality indices for aging and new products and uniformity indices that are associated with uniformity of insulation materials revealed.
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