한국조명전기설비학회:학술대회논문집 (Proceedings of the Korean Institute of IIIuminating and Electrical Installation Engineers Conference)
- 한국조명전기설비학회 2006년도 춘계학술대회 논문집
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- Pages.49-53
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- 2006
과부하에 따른 배전용 변압기의 절연유 열화검출
Analysis of Transformer Fluid Aging from Overload Operation
- Joung, Jong-Man (Korea Electric Power Research Institute of KEPCO) ;
- Lee, Byung-Sung (Korea Electric Power Research Institute of KEPCO) ;
- Kim, Ju-Yong (Korea Electric Power Research Institute of KEPCO) ;
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Song, Il-Kun
(Korea Electric Power Research Institute of KEPCO) ;
- Kim, Byung-Suk (Korea Electric Power Research Institute of KEPCO)
- 발행 : 2006.05.11
초록
In this paper the thermal aging characteristics of transformer fluid were considered. First, the temperature rise characteristic in transformer winding was discussed. The temperatures were rapidly increased immediately with applying load and then the temperature was followed the exponential temperature rise model. Next, Capacitance and leakage current characteristics of the transformer fluid were measured during the over-loading operation. The capacitance of vegetable fluid and leakage current were evidently increased wit aging time. So the simple methods could be applied to diagnosis of the transformer aging
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