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Degradation Diagnosis of Insulation Paper Using CO and $CO_2$ Gases in Oil Immersed Transformers  

Sun Jong-Ho (한국전기연구원)
Yi Sang-Hwa (한국전기연구원)
Kim Kwang-Hwa (한국전기연구원)
Publication Information
The Transactions of the Korean Institute of Electrical Engineers C / v.53, no.10, 2004 , pp. 523-529 More about this Journal
Abstract
Faults of cellulosic insulations greatly affect the life span of oil immersed transformers because their performance recovery is impossible. Therefore, the reliable diagnosis technologies are needed for detection of the faults. Dissolved gas analysis technologies using CO and $CO_2$ gases have been widely used for fault diagnosis of cellulosic insulations. In this research, we described Degradation diagnosis of insulation paper CO and $CO_2$ gases in oil immersed Transformers using. We considered the distribution characteristics of CO, $CO_2$ gases' concentrations and ratios of $CO_2$/CO not only in serviced transformers but in experiments with typical fault causes such as heat, partial discharge and moisture. As result, the reliability of diagnosis results for the cellulosic insulations can be improved when the concentrations of CO, $CO_2$ and the ratio of CO/$CO_2$ satisfy each diagnosis criterion at a tim
Keywords
Oil Immersed Transformers; Gas Dissloved Analysis; Cellulosic Insulations;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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