인문학
사회과학
자연과학
공학
의약학
농수해양학
예술체육학
복합학
DBpia AI
AI 에이전트
AI 아이디어
AI 리더
AI 뷰어
Citeasy
크롬 서지관리 다운로드
지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
커뮤니티
연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
피인용 0
초록·키워드
In recent years, the number of failures caused by oil impregenated paper(OIP) bushings applied to long-term power transformers has been increasing, and some of them have progressed to fires, increasing the possibility of facility damage. As OIP bushings are more than 70% of the long-term bushings in operation, there is a high probability of fire in case of failure, so it is necessary to develop diagnostic technology for aging bushings. Although KEPCO is implementing insulation oil gas analysis to prevent the continued occurrence of failures and recurrence of failures due to bushing insulation breakdown. However, since KEPCO currently does not have its own bushing oil gas maintenance standards, it is necessary to establish management standards that reflect the differences in insulation oil types among manufacturers. Therefore, in this study, we evaluated the generation characteristics of major decomposed gases by failure type based on KEPCO's accumulated bushing dissolved gas analysis database for major bushing manufacturers in operation, bushing internal dismantling inspection, and accelerated aging experiments for each manufacturer. Based on this, it is expected to contribute to the establishment of abnormal diagnosis criteria for OIP bushings and improvement of facility inspection efficiency.
본문·목차
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