Proceedings of the KIEE Conference (대한전기학회:학술대회논문집)
- 2005.07e
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- Pages.73-75
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- 2005
The Characteristics of RVM by Accelerated Aging in Insulating Materials of the Transformer
경년 열화에 따른 변압기 절연물의 회복전압 특성
- Kang, Seok-Young (Chungnam National University) ;
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Han, Sang-Ok
(Chungnam National University) ;
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Kim, Jae-Hoon
(Chungnam National University) ;
- Kim, Ju-Han (Chungnam National University) ;
- Lee, Sei-Hyun (Dae-jeon Polytechnic College)
- Published : 2005.07.18
Abstract
In present measurement of moisture contents is used as one of method for estimating degradation of transformer. Most of people use Karl-Fischer titration method for detection moisture contents but this measurement is inconvenient method because we must analyze transformer oil-paper after dismounting transformer and sampling in field. Therefore we don't directly investigate them in field. In this paper we will introduce Recovery Voltage Method(RVM) that is new method for estimating measurement in field though dismounting facility. For measure of moisture contents using RVM in accordance with accelerated thermal aging we have made experimental test cell and aged at a temperature up to 140
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