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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The Analysis of VHF/UHF PD and 3d-PD Pattern

3d-PD 패턴과 VHF/UHF PD 신호의 고찰

  • Lim, Jang-Seob (Faculty of M.E.C., Mok-Po National Maritime University.) ;
  • Park, Yong-Sik (Faculty of M.E.C., Mok-Po National Maritime University.) ;
  • Park, Byoung-Ha (Faculty of M.E.C., Mok-Po National Maritime University.) ;
  • Han, Sok-Kyun (Faculty of M.E.C., Mok-Po National Maritime University.)
  • 임장섭 (목포해양대학교 전자통신공학부) ;
  • 박용석 (목포해양대학교 전자통신공학부) ;
  • 최병하 (목포해양대학교 전자통신공학부) ;
  • 한석균 (목포해양대학교 전자통신공학부)
  • Published : 2001.05.11
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Abstract

Recently, the HFPD measurement testing is widely used in partial discharge measurement of HV machines because HFPD measurement testing receives less influence of external noise and has a merit of good sensitivity. Also HFPD testing is able to offer the judgement standard of degradation level of HV machine and can detect discharge signals in live-line. Therefore it is very useful method compare to previous conventional PD testing method and effective diagnosis method in power transformer that requires live-line diagnosis. But partial discharges have very complex characteristics of discharge pattern so it is required continuous research to development of precise analysis method. In recent, the study of partial discharge is carrying out discover of initial defect of power equipment through condition diagnosis and system development of degradation diagnosis using HFPD(High Frequency Partial Discharge) detection. In this study, simulated transformer is manufactured and HFPD occurred from transformer is measured with broad band antenna in real time, the degradation grade of transformer is analyzed through produced patterns in simulated transformer according to applied voltages.

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