한국전기전자재료학회:학술대회논문집 (Proceedings of the Korean Institute of Electrical and Electronic Material Engineers Conference)
- 한국전기전자재료학회 2003년도 하계학술대회 논문집 Vol.4 No.1
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- Pages.96-99
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- 2003
시험방법에 의한 대용량 유입변압기의 열화진단
Ageing Diagnostics in Oil Transformer for Large Capacity due to Test methods
- Sim, Yoon-Tae (Seoul National Univ. of Technology) ;
- Kim, Wang-Gon (Seoul National Univ. of Technology) ;
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Hong, Jin-Woong
(KwangWoon Univ.)
- 발행 : 2003.07.10
초록
In this paper, ageing diagnostics in the large capacity oil transformer are investigated. Following items are investigated for the ageing diagnostic in transformer oils (leakage current of sensor, power consumption and temperature of transformer oil). All temperature data are gathered from daily report in the substation. The power consumption of transformer are gathered output report of APIS(Airport Power Information System). Especially, data of sensor leakage current are accumulated from the online diagnostic system for transformer oil. The temperature of transformer oils major change factor was ambient temperature and capacity of power load. The leakage current are change by oil temperature. The leakage current ware not more than 2 [nA] in summer,