Development of UV Corona Camera for the Detecting of Discharge on Power Facility using UV Transmittance Improvement Filter

UV 투과율 향상 필터 기술을 이용한 전력설비 방전 검출용 자외선 코로나 카메라 개발

  • 김영석 (한국전기안전공사 전기안전연구원) ;
  • 최명일 (한국전기안전공사 전기안전연구원) ;
  • 김종민 (한국전기안전공사 전기안전연구원) ;
  • 방선배 (한국전기안전공사 전기안전연구원) ;
  • 송길목 (한국전기안전공사 전기안전연구원)
  • Received : 2012.09.17
  • Accepted : 2012.10.24
  • Published : 2012.11.01


UV inspection technology is being used for predictive maintenance of power facility together with IR-thermography and ultrasonic devices. In this paper, the UV corona camera design, fabrication, and perform a simple test to be take advantage of the diagnostic equipment. The UV corona camera developed a $6.4^{\circ}{\times}4.8^{\circ}$ of the field of view as a conventional camera to diagnose a wide range of slightly enlarged, and power equipment to measure the distance between the camera and the distance meter has been attached. The transmission between 250 to 280nm was 11% ($12.5%{\times}88%{\times}98%$) by combing the transmission on absorption film, window and other filter(UG 5, nickel sulphate and so on). In a distance of 5m with the UV corona camera it is possible to detect partial discharge with a PD level of 2.5pC and a RIV level of $3.6dB{\mu}V$.


Ultra-violet;Corona discharge;Partial discharge;Diagnosis;Ultrasonic


Supported by : 한국에너지기술평가원(KETEP)


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