| Title |
A Study on the Streaming Electrification Phenomena of the Transformer Oil |
| Authors |
강성화 ; 임기조 ; 주상범 ; 김명녕 ; 강도열 ; 김봉협 |
| Abstract |
Recently, streaming electrification in forced oil cooled power transformer has been taken up as a serious problem. In this paper, the charging tendency of various insulation oils, such as mineral oil, polybutene and silicone oil has been measured by means of an injection type charging tendency measuring apparatus under various condition. The experimental data of the dependence of the leakage current on flow velocity and temperature of oil can be explained by considering the flow state such as laminar and turbulent flow. The effect of additives on the charging tendency of mineral oil has been investigated. BTA is regarded as the most effective retardant to electrification of oil among the additives chose for this investigation. |