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원자력발전소 전력케이블 부분방전 진단 사례

Partial Discharge Measurement of Power Cables for Nuclear Power Plant

  • 투고 : 2011.04.15
  • 심사 : 2011.06.27
  • 발행 : 2011.08.01

초록

Electric cables are one of the most important components in a nuclear power plant since they provide the power needed to operate electrical equipment. Despite their importance, cables typically receive little attention since they are considered passive, long-lived components that have been very reliable over the years when subjected to the environmental conditions for which they were designed. The operating experience reveals that a defect of the insulator or poor construction causes the initial failure of cable. However, the number of cable failures increase with plant aging, and these cable failures are occurring within the plants' 40-year licensed period. These cable failures have resulted in plant transients, shutdown, loss of safety functions or redundancy, entries into limiting conditions for operation, and challenges for plant operators. Therefore, diagnosis of MV cable installed in NPPs has become one of the most urgent issues in recent years. In accordance with PSR, condition maintenance for cables is also continuously required. Recently, HFPD tests have been widely performed to diagnose cable in the transmission and distribution cable system. However, on-line HFPD wasn't used in the NPPs because of the danger of plant shutdown, measurement sensitivity and application problems, etc. In this paper, HFPD measurement with portable device was performed to evaluate the integrity of the 4.16kV & 13.8kV cable lines. The test results show that HFPD is highly attractive to the diagnosis of MV cables in NPP by high detection sensitivity on-site.

키워드

참고문헌

  1. E.Pultrum, M.J.M.Vanreit, "HF partial discharge detection of HV extruded cable accessories", GICABLE 95 4th international conference on insulated power cables, Paris France, June 25-29. 1995
  2. Su-Kil Lee, et al. "Characteristicsof high frequency partial discharge for artificially defected extra high voltage accessories," IEEE conference on Electrical Insulation and Dielectric Phenomena, pp.682-685, 2000
  3. E.Pultrum, E.F.Steennis, M.J.M.Vanreit, "Test after laying, diagnostic testing using partial discharge testing at site", CIGRE session 15/21/33-12, 1996
  4. 이전선, 김충식, 이동근, 공충호, 석광현, 이경욱, "HFPD검출법을 이용한 지중케이블 실선로 진단" 전기설비 전문위원회 춘계학술대회 논문집, 2004
  5. S. Aggarwal, "Condition Monitoring Program for Electric Cables Used in Nuclear Power Plants" NRC, 2010. 6.
  6. 이재봉, 송일근, 김주용, 박철배, 정연하, "지중배전케이블 최적 열화진단기술 선정 및 운영방안에 관한 연구", 전력연구원, 2009
  7. 하체웅, 주광호, 한성흠, "원자력발전소 전력케이블 경년열화 진단 사례", 대한전기학회 하계학술대회 논문집, 2010. 7.
  8. U.S. Nuclear Regulatory Commission, "Literature Review of Environmental Qualification of Safety-Related Electric Cables", vol. I, 1996. 4.
  9. International Atomic Energy Agency, "Assessment and Management of Ageing of Major NPP Components Important to Safety: In-Containment Instrumentation and Control Cables", vol. I, vol. II, 2000. 12.
  10. H.M. Banford, R.A. Fouracre, "Nuclear Technology and Ageing", IEEE Electrical Insulation Magazine, vol. 15, no. 5, 1999. 10.
  11. Dr.Q.Su, "New Techniques for On-line Partical Discharge Measurements", IEEE Xplore, March 08, 2010.
  12. Plant Support Engineering : Aging Management Program Guidance for Medium-Voltage Cable Systems for Nuclear Power Plants, CA:2010, 1020805.
  13. Gary Toman, "Aging Management Program Guidance for Medium Voltage Cable Systems for Nuclear Power Plants", Drafet-2, October 14, 2009.
  14. Z.A.Tamus, R.Cselko, I.Berta, "Application of Partial Discharge Measurement on Laboratory Aged Low Voltage Cable", IEEE El Ins. Conf. Montreal, QC, Canada, 31 May - 3 June, 2009.
  15. Plant Support Engineering : Failure Mechanism Assessment of Medium-voltage Ethylene Propylene Rubber Cable - Revision 1, EPRI, Palo Alto, CA:2009, 1018777.
  16. S.Eckroad, T.Zhao, "Field Partial Discharge Measurements on Extruded Dielectric Transmission Cable System-State of the Art", EPRI report, March 2008.
  17. Plant Support Engineering: Life Cycle Management Planning Sourcebooks: Medium-Voltage(MV) Cables and Accessories (Terminations and Splices), EPR, Palo Alto, November, 2006, 1013187.
  18. Medium-Voltage Cables in Nuclear Plant Applications - State of Industry and Condition Monitoring, EPRI, Palo Alto, CA: 2003. 1003664.
  19. Demonstration of Life Cycle Management Planning for Systems, Structures, and Components, EPRI, Palo Alto, CA:2001, 1000806.
  20. Diagnostic Matrix for Evaluation of Low-Voltage Electrical Cable, EPRI, Palo Alto, CA:1997, TR-106108.
  21. Cable Aging Management Program for D.C.Cook Nuclear Plant Units 1 and 2, EPRI, Palo Alto, CA:1996, TR-106687.

피인용 문헌

  1. Instantaneous Frequency Estimation of the Gaussian Enveloped Linear Chirp Signal for Localizing the Faults of the Instrumental Cable in Nuclear Power Plant vol.62, pp.7, 2013, https://doi.org/10.5370/KIEE.2013.62.7.987