전기학회논문지 (The Transactions of The Korean Institute of Electrical Engineers)

  • 제62권9호
  • /
  • Pages.1302-1307
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  • 2013
  • /
  • 1975-8359(pISSN)
  • /
  • 2287-4364(eISSN)
대한전기학회 (The Korean Institute of Electrical Engineers)
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서지보호기의 상태 감시를 위한 MOV의 고장률 예측

Failure Rate Estimation of MOV for Condition Monitoring of Surge Protective Devices

  • Kim, Dong Jin (Dept. of Electronics and Electrical Engineering, Dankook University) ;
  • Kim, Young Sun (Dept. of Electrical and Electronic Engineering, Joongbu University) ;
  • Park, Jae Jun (Dept. of Electrical and Electronic Engineering, Joongbu University) ;
  • Lee, Ki Sik (Dept. of Electronics and Electrical Engineering, Dankook University)
  • 투고 : 2013.02.12
  • 심사 : 2013.07.27
  • 발행 : 2013.09.01
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초록

MOV(Metal Oxide Varistor) is the most important part of SPD(Surge Protective Device) which can protect electric facilities from an impulse current such as a lightning. So far, the fault of MOVs have decided only by surge count without considering magnitude of surge current and an amount of input energy. This paper proposed the fault prediction algorithm for the MOV using look up table made by surge count and input current data which have non-linear characteristics for input current and are estimated by high voltage experimental results. Proposed algorithm was proved by experiment on verification at a high voltage laboratory.

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참고문헌

  1. Young Min Ko, Ki-Sik Lee and Young Sun Kim, "Characteristic Study of Surge Protective Varistor by Amplitude of AC Leakage Current", Proceedings of the KIEE Summer Conference, pp. 2130-2131, 2010.
  2. Dong Jin Kim, In Sik Yeo, and Ki Sik Lee, "A study on varistor ability according to surge quantity and count into the distribution system", Proceedings of the Autumn Conference for the Society of Electrical Facilities at KIEE, pp. 95-97, 2008.
  3. In Sik Yeo, Young Min Ko and Ki Sik Lee, "A Study on Performance Evaluation of SPD Varistor by Temperature Measurement", KIEE Trans., Vol. 58P, No. 4, pp. 490-494, 2009.
  4. B. H. Lee, and B. Lee, "Effects of the Injected Number and Amplitude of 8/20 [$\mu{s}$] Impulse Current on the Life of ZnO Varistors", Journal of the KIIEE, Vol. 21, No. 1, pp. 118-124, 2007. https://doi.org/10.5207/JIEIE.2007.21.1.118
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  6. Aleksander Recnik, Slavko Bernik, and Nina Daneu, "Microstructural engineering of ZnO-based varistor ceramics", J Mater Sci, Vol. 47, pp. 1655-1668, 2012. https://doi.org/10.1007/s10853-011-5937-2
  7. T. K. Gupta, and W. G. Carlson, "A Grain-boundary Defect Model for Instability/stability of a ZnO Varistor", J Mater Sci, Vol. 20, pp. 3487-3500, 1985. https://doi.org/10.1007/BF01113755
  8. J. R. Yoon, C. B. Lee, K. M. Lee, H. Y. Lee, and S. W. Lee, "Voltage Enhancement of ZnO Oxide Varistors for Various Y2O3 Doping Compositions", TEEM, Vol. 10, No. 5, 2009.