Proceedings of the KIEE Conference (대한전기학회:학술대회논문집)

The Korean Institute of Electrical Engineers (대한전기학회)
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A Study on the Electrical Diagnostic Methods In GIS

GIS에 있어서 전기적 절연진단법에 대한 연구[1]

  • 최재구 (한국전기연주소 고전압연구팀) ;
  • 김영배 (한국전기연주소 고전압연구팀) ;
  • 김익수 (한국전기연주소 고전압연구팀) ;
  • 이형호 (한국전기연주소 고전압연구팀)
  • Published : 1998.11.28
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Abstract

PD pulses have about one nanosecond rise time in the $SF_6$ gas insulation. These pulses propagate in the apparatus to PD sensors in the form of the voltage oscillation, high frequency current and the electromagnetic radiation. In this paper, we investigated the characteristics of two types of PD sensors, by putting high frequency signals in the form of sine waves and pulse into the test apparatus in air. Also, we measured PD quantity from the needle electrode and the sensitivity of the sensors. We found that PD of 70pC could be detected with this method and the study in $SF_6$ gas should be carried out for application to $SF_6$ GIS.

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