| Title |
Aging Characteristics of Power Transformer Oil and Development of Its Analysis using KSOM |
| Authors |
임재윤 ; 지평식 ; 이종필 ; 남상천 ; 이승렬 |
| Abstract |
In power system, substation facilities have become too complex and large according to extended power system. Also, some facilities become old and often break down unexpectedly. In order to improve the security of transformer out of substation facilities, the development of diagnosis technique to transformer is very needed. In this paper, we developed method to be analysis the origin and degree of aging by KSOM based on the dissolved gases in power transformer. KSOM can do topological mapping for the multi-dimensional pattern based on the dissolved gases to two dimensional plane. And potential possibility and degree of aging for normal transformer are presented using the proposed quantitative criterion. Furthermore, the aging process of transformer is analyzed based on the proposed criterion to special transformer. To demonstrate the validity of proposed method, case study is performed and its results are presented. |