Proceedings of the KIEE Conference (대한전기학회:학술대회논문집)
- 2007.07a
- /
- Pages.95-96
- /
- 2007
A Result and Pattern of Dissolved Gases Analysis in Kepco
전력용 변압기 유중가스분석 결과와 동향
- Cho, Sung-Min (Kyo-Sun Koo SoongSil Univ.) ;
-
Kim, Jae-Chul
(Kyo-Sun Koo SoongSil Univ.)
;
-
Kweon, Dong-Jin
(Korea Electric Power Research Institute)
;
- Koo, Kyo-Sun (Korea Electric Power Research Institute)
- Published : 2007.07.18
Abstract
Dissolved gas analysis (DGA) is one of the most widely used diagnostic tools for detecting and evaluating faults in electrical equipment. However, interpretation of DGA results is often complex and should always be done with care, involving experienced insulation maintenance personnel. KEPCO (Korea Electric Power Cooperation) has been using DGA technique since KEPCO established the criteria of DGA in 1985. In this paper, we introduce the DGA criteria of KEPCO and analyze the result of DGA. Also we sort pattern in result of DGA. Then, relation between pattern and inner inspection was studied. 67 DGA data was used for analyzing pattern. Some patterns have something to do with cause of incipient fault.
Keywords