KEPCO Journal on Electric Power and Energy

Korea Electric Power Corporation (한국전력공사)
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Statistical Life Expectancy Calculation of MV Cables and Application Methods

중전압 전선의 통계적 수명예측 계산과 응용 방법

  • Chong-Eun, Cho (KEPCO Research Institute, Korea Electric Power Corporation) ;
  • On-You, Lee (KEPCO Research Institute, Korea Electric Power Corporation) ;
  • Sang-Bong, Kim (KEPCO Research Institute, Korea Electric Power Corporation) ;
  • Kang-Sik, Kim (KEPCO Research Institute, Korea Electric Power Corporation)
  • Received : 2022.08.12
  • Accepted : 2022.09.16
  • Published : 2022.12.30
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Abstract

In this paper, the change history of various types of MV (Medium Voltage) cables was investigated. In addition, the statistical life expectancy of each type was calculated by using the operation data and the failure data. For cut-off year, 10 years was applied, and realistically applicable statistical life expectancy was calculated by correcting the cause of failure entered by mistake. The life expectancy of FR-CNCO-W was calculated as 51.2 years, CNCV-W 38.1 years, and CNCV 31.4 years and the overall average is 33.8 years. Currently, the life expectancy of TR CNCV-W is 29.4 years, but it is estimated that the lifespan will be extended if failure data is accumulated. As a result, it is expected that life expectancy results can be applied to Asset Management System (AMS) in the future.

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References

  1. 홍성규, "배전설비 진단기술 적용현황 및 고도화 방향, 전기의 세계", PP. 42, 2014
  2. 한전 e-배전정보 > 설비통계 > 지중설비통계(2005, 2021)
  3. 배전운영처 지중배전팀, "지중케이블 열화 진단개론", PP14~96, 2010
  4. 황원서, "배전산업의 22.9kV-y 다중접지 배전방식의 도입", 전기학회지 제 46권7호, PP25~27,1997
  5. 한민구 외, "수트리 억제형 22.9kV CV/CN 케이블 개발(1차년도 중간보고서)", PP2~197, 1996
  6. 한전 NDIS GIS 배전용케이블 선종별 데이터 추출(2022.5)
  7. OMRON, "Technical Explanation for Solid-state Relays" report PP26.
  8. 한전 정전통계 종합관리시스템 > 정전세부내역조회(2008~2021)
  9. 배전운영처, "지중배전공사 시공절차서", PP136, 2008
  10. 김일권, "전력케이블 열화진단 신기술", PP57~58, 전력기술인, 1998
  11. 조종은, "지중 배전용케이블 고장통계분석 및 고장률 활용 진단대상 우선순위 선정방법, PP263~268, Volume 7, KEPCO Journal, 2021
  12. Steven Boggs and James Xu, "Water Treeing-Filled Verus Unfilled Cable Insulation", Volume 17, No.1, IEEE, PP23~29, 2001
  13. B.Desai, "Industry-wide Transformer Database", EPRI, PP410, 2015