대한전기학회:학술대회논문집 (Proceedings of the KIEE Conference)
- 대한전기학회 1998년도 하계학술대회 논문집 E
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- Pages.1725-1727
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- 1998
고체절연체 계면에서 부분방전 패턴의 열화에 따른 변화특성
The Characteristics of PD Patterns due to the Aging at the Interface between Solid Insulators
- Lee, Woo-Young (Korea Electrotechnology Research Institute) ;
- Sun, Jong-Ho (Korea Electrotechnology Research Institute)
- 발행 : 1998.07.20
초록
In this paper the patterns of partial discharges(PD) occurred from some defects at the interface of cable joints as the function of the phase of the applied voltage were investigated in order to discern the kind of a defect. The results obtained in this study show that it is possible to distinguish the PD patterns between the void discharges and the treeing or tracking discharges which were occured at the cable joint interface. While the state of defect transfers from a void discharge into a tree or tracking discharge with a aging time, the skewness for both half of the applied voltage cycle is observed to go to the negative value.
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