Proceedings of the KIEE Conference (대한전기학회:학술대회논문집)

The Korean Institute of Electrical Engineers (대한전기학회)
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A possible optical measuring technique for corona discharge by use of Pockets sensor

광계측 시스템을 이용한 코로나 방전 검출

  • Kang, Won-Jong (SMDT Lab., Dept. of Electrical Engineering, Hanyang Univ.) ;
  • Ma, Ji-Hoon (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.)
  • Published : 2001.07.18
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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. And also it is constructed by He-Ne laser, optical fiber, $LiNbO_3$ Pockels cell, photo detector, grin lens, oscilloscope and PC. The characteristics of the developed prototype sensor are investigated under AC and corona discharges.

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