Proceedings of the Korean Institute of Electrical and Electronic Material Engineers Conference (한국전기전자재료학회:학술대회논문집)

The Korean Institute of Electrical and Electronic Material Engineers (한국전기전자재료학회)
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A possible non-contact measuring technique for the variation of the electric field due to corona discharge by use of Pockels sensor

포켈스센서를 이용한 코로나방전 발생시의 전계변화 측정에 관한 연구

  • Ma, Ji-Hoon (SMDT Lab., Dept. of Electrical Engineering, Hanyang Univ.) ;
  • Kang, Won-Jong (SMDT Lab., Dept. of Electrical Engineering, Hanyang Univ.) ;
  • Lim, Yun-Sok (SMDT Lab., Dept. of Electrical Engineering, Hanyang Univ.) ;
  • Choi, Jae-Ok (SMDT Lab., Dept. of Electrical Engineering, Hanyang Univ.) ;
  • Chang, Yong-Moo (SMDT Lab., Dept. of Electrical Engineering, Hanyang Univ.) ;
  • Koo, Ja-Yoon (SMDT Lab., Dept. of Electrical Engineering, Hanyang Univ.)
  • 마지훈 (한양대학교 전자전기제어공학과) ;
  • 강원종 (한양대학교 전자전기제어공학과) ;
  • 임윤석 (한양대학교 전자전기제어공학과) ;
  • 최재옥 (한양대학교 전자전기제어공학과) ;
  • 장용무 (한양대학교 전자전기제어공학과) ;
  • 구자윤 (한양대학교 전자전기제어공학과)
  • Published : 2001.05.11
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Abstract

In this paper, an novel optical measuring system based on the electro-optic effect has been proposed and realized using Pockels cell with a view to detecting partial discharge taking place at the needle plane electrode. This system has the following advantages ; nonmetallic probe sensor, immune to external EMI noise and broad band response of the Pockels cell from DC to GHz. This system is constructed by He-Ne laser, Mach-Zehnder interferometer with Pockels sensor, balanced photo receiver, data acquisition board and PC. The response characteristics of the developed proto type sensor are examined for AC and corona discharge.

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