The Transactions of The Korean Institute of Electrical Engineers (전기학회논문지)

The Korean Institute of Electrical Engineers (대한전기학회)
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Comparison of UV images and Measurement of the Corona Discharge from Insulators using the UV Sensor

UV 센서를 이용한 절연애자의 코로나 방전 측정 및 자외선 이미지의 비교

  • 김영석 (한국전기안전공사 전기안전연구원) ;
  • 최명일 (한국전기안전공사 전기안전연구원) ;
  • 김종민 (한국전기안전공사 전기안전연구원) ;
  • 방선배 (한국전기안전공사 전기안전연구원) ;
  • 송길목 (한국전기안전공사 전기안전연구원)
  • Received : 2011.02.08
  • Accepted : 2011.02.24
  • Published : 2011.04.01
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Abstract

Inspections and diagnoses of corona discharge are important in order to prevent electrical faults of external insulation in power systems. This paper studies a measurement of ultra-violet rays(UV) strength of corona discharges on insulators using a UV sensor with an optic lens. The data has been compared with the images of a UV camera. The UV sensor estimated that DC voltage needed to be set at 700V for accurate data analysis of the properties of UV detected during corona discharge. UV was generated at 60kV when the corona discharge occurred. UV strength and images of UV increased at a high voltage. The image area of the UV using a UV camera and the detection of UV using a UV sensor have shown, that the polymer insulator mounted on a live part must be checked when the applied voltage on the good polymer insulator is greater than 37.5% of its breakdown voltage.

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References

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Cited by

  1. A Study on the Signal Analysis of Corona Discharge on the Polymer Insulator using UV Sensor Array vol.28, pp.4, 2014, https://doi.org/10.5207/JIEIE.2014.28.4.016