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 Study on the Aging Characteristics of Power Capacitors using Electrical Methods

전기적 방법을 이용한 전력용 콘덴서 열화특성 연구

  • 김은식 (전기안전시험연구원(ESLRI)) ;
  • 김영욱 (전기안전시험연구원(ESLRI)) ;
  • 김종서 (전기안전시험연구원(ESLRI)) ;
  • 윤철섭 (전기안전시험연구원(ESLRI)) ;
  • 박대희 (원광대학교 전기전자공학부)
  • Published : 1998.11.01
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Abstract

Power capacitors are highly reliable equipment due to their completely enclosed configuration. Aging diagnosis system using partial discharge(PD) and acoustic emission(AE) is being highlighted as a research area for degradation of power capacitors. Their dielectric strength can be however reduced due to some stresses such as over-voltage or thermal degradation of the insulation material during their long period of operation. In this paper, it has been developed to express the AE of the EVENT(average amplitude) and HIT(pulse count) according to the source location. And real time measurement of PD signals for aging diagnosis of power capacitors.

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