Application of On-line Diagnostic System for Oil-filled Power Transformers

대용량 변압기 예방진단 시스템 적용 사례

  • Kim Y.H. (Hyundai Heavy industries, Co., Ltd.) ;
  • Lee C.R. (Hyundai Heavy industries, Co., Ltd.) ;
  • Hwangbo S.W. (Hyundai Heavy industries, Co., Ltd.) ;
  • ;
  • Shin Y.T. (Hyundai Heavy industries, Co., Ltd.) ;
  • Park K.S. (Hyundai Heavy industries, Co., Ltd.) ;
  • Lee J.B. (Hyundai Heavy industries, Co., Ltd.)
  • 김용한 (현대중공업 기계전기연구소) ;
  • 이창용 (현대중공업 기계전기연구소) ;
  • 황보승욱 (현대중공업 기계전기연구소) ;
  • 최영찬 (현대중공업 기계전기연구소) ;
  • 신용택 (현대중공업 기계전기연구소 배전반설계부) ;
  • 박균수 (현대중공업 기계전기연구소 변압기설계부) ;
  • 이재봉 (현대중공업 기계전기연구소 여수화력)
  • Published : 2004.07.14

Abstract

This paper presents recent trends on the on-line monitoring and diagnostic systems for oil-immersed transformers. Specially, our system on YeoSu thermal power plant is introduced for high sensitivity and accuracy of ours. It is combined with communication networks to provide an on-line remote monitoring system. Several alarm criteria are formulated to enable a superimposed monitoring system to perform decisive action. The reasons for monitoring the condition and maintaining the health of electrical apparatus were discussed. The experience at the fields and the criteria for the judgment are also discussed in detail.

Keywords