Journal of the Korean Institute of Illuminating and Electrical Installation Engineers (조명전기설비학회논문지)

The Korean Institute of IIIuminating and Electrical Installation Engineers (한국조명전기설비학회)
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Corona Discharge Characteristics of Transformer Bushing Model with Contaminnations in Air

오염물질에 따른 변압기부싱 모델의 기중 코로나 방전 특성

  • 방만식 (한국국제대학교 전기에너지공학과) ;
  • 김우진 (경상대학교 대학원 전기공학과) ;
  • 김영석 (한국전기안전공사 전기안전연구원) ;
  • 김상현 (경상대학교 전기공학과)
  • Received : 2012.04.20
  • Accepted : 2012.05.09
  • Published : 2012.05.31
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Abstract

The surface of bushing is contaminated with rain, dust, salt and others. A bushing with contaminations in air is serious problem in insulation. Therefore, it is important to understand the inspection and diagnoses of the safety. The ultra-violet rays(UV) camera has attracted interest from the view point of easy judgement. In this paper, we will report on the corona discharge characteristics of surface flashover model with contaminations in air. Also, UV images of discharge and corona pulse count in air are analyzed using prototype UV camera of Korea and a UV sensor with an optic lens. These results are studied at both AC and DC voltage under a non-uniform field.

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References

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