Proceedings of the KIEE Conference (대한전기학회:학술대회논문집)

The Korean Institute of Electrical Engineers (대한전기학회)
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Analysis of Electrical and AE Signals by Treeing Breakdown

트리잉 파괴에 따른 전기 및 AE신호의 분석

  • Lee, Sang-Woo (School of Electrical and Electronic Engineering, Yeungnam University) ;
  • Kim, Seung-Gyu (School of Electrical and Electronic Engineering, Yeungnam University) ;
  • Kim, In-Sik (Dept. of Electrical Engineering, Kyungil University) ;
  • Lee, Kwang-Sik (School of Electrical and Electronic Engineering, Yeungnam University) ;
  • Lee, Dong-In (School of Electrical and Electronic Engineering, Yeungnam University)
  • 이상우 (영남대학교 전기전자공학부) ;
  • 김성규 (영남대학교 전기전자공학부) ;
  • 김인식 (경일대학교 전기공학과) ;
  • 이광식 (영남대학교 전기전자공학부) ;
  • 이동인 (영남대학교 전기전자공학부)
  • Published : 1999.07.19
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Abstract

In this paper, using AE (Acoustic Emission) sensor the electrical and emitted-sound signals are measured by treeing breakdown in the epoxy resin, and the corresponding frequency spectrum of the AE signals are analyzed. We also examined the relationship between partial discharge magnitude and pulse number of AE signals to diagnose the deterioration of the electrical insulation due to treeing breakdown. From these results, a frequency band of AE signals through treeing breakdown was set to about 230 [kHz], and it appeared that pulse number of AE signal was proportional to partial discharge magnitude.

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