한국전기전자재료학회논문지 (Journal of the Korean Institute of Electrical and Electronic Material Engineers)

  • 제29권7호
  • /
  • Pages.429-434
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  • 2016
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  • 1226-7945(pISSN)
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  • 2288-3258(eISSN)
한국전기전자재료학회 (The Korean Institute of Electrical and Electronic Material Engineers)
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SF6 가스절연에서 부분방전의 특성분석

Analysis of Partial Discharge Characteristics in SF6 Gas Insulation

  • 김선재 (한국해양대학교 전기전자공학과) ;
  • 왕국명 (한국해양대학교 전기전자공학과) ;
  • 박서준 (한국해양대학교 전기전자공학과) ;
  • 길경석 (한국해양대학교 전기전자공학과) ;
  • 안창환 (인하공업전문대학교 디지털전자과)
  • Kim, Sun-Jae (Department of Electrical and Electronics Engineering, Korea Maritime and Ocean University) ;
  • Wang, Guoming (Department of Electrical and Electronics Engineering, Korea Maritime and Ocean University) ;
  • Park, Seo-Jun (Department of Electrical and Electronics Engineering, Korea Maritime and Ocean University) ;
  • Kil, Gyung-Suk (Department of Electrical and Electronics Engineering, Korea Maritime and Ocean University) ;
  • An, Chang-Hwan (Department of Digital Electronics, Inha Technical College)
  • 투고 : 2016.05.13
  • 심사 : 2016.06.13
  • 발행 : 2016.07.01
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초록

This paper deals with the characteristics of partial discharge (PD) for the purpose of a condition based maintenance (CBM) of gas insulated switchgears (GIS) in power equipment. Four types of electrode systems such as a protrusion on enclosure (POE), a particle on spacer (POS), a free particle (FP) and a Floating were designed and fabricated. PD pulses were measured using UHF sensor with a frequency range of 300 MHz~1.4 GHz and a DAQ with a sampling rate of 250 MS/s. Discharge inception voltage (DIV), discharge extinction voltage (DEV), and phase resolved partial discharge (PRPD) were analyzed depending on electrode systems. The average DIV in the POS was 28.8 kV. It was about 1.7 times higher than that in the FP, which was the lowest value of 17.2 kV. The FP shuffled and jumped at the applied voltage of 23.5 kV. Over 95% of PD pulses in the POE were generated in the negative polarity ($181^{\circ}{\sim}360^{\circ}$) of applied voltage. The results showed the phase (${\Phi}$)-magnitude (dBm) of PD pulses by UHF sensor, a cluster was formed separately depending on electrode systems.

키워드

참고문헌

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피인용 문헌

  1. Analysis of PD Signal for Condition Monitoring of MV Switchboards by the Measurement of Transient Earth Voltage vol.19, pp.3, 2018, https://doi.org/10.1007/s42341-018-0037-5