조명전기설비학회논문지 (Journal of the Korean Institute of Illuminating and Electrical Installation Engineers)

  • 제28권5호
  • /
  • Pages.68-75
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  • 2014
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  • 1229-4691(pISSN)
  • /
  • 2287-5034(eISSN)
한국조명전기설비학회 (The Korean Institute of IIIuminating and Electrical Installation Engineers)
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종속 접속된 전압제한형 SPD의 직격뢰 서지전류에 대한 에너지협조

Energy Coordination between Cascaded Voltage Limiting Type SPDs in Surge Currents due to Direct Lightning Flashes

  • 이복희 (인하대학교 IT공대 전기공학과) ;
  • 엄상현 (인하대 대학원 전기공학과)
  • 투고 : 2014.02.17
  • 심사 : 2014.03.11
  • 발행 : 2014.05.31
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초록

Cascaded applications of surge protective devices(SPDs) are required in order to reduce the stress on the electrical and electronics equipment being protected, and the energy coordination between the cascaded SPDs is very important. This paper deals with the experimental results obtained from the installation conditions of full-scale SPDs. The energy coordination between the upstream Class I SPD and the downstream Class II SPD was measured using a $10/350{\mu}s$ impulse current due to direct lightning flashes. The distances between the cascaded SPDs were 3, 10, and 50m, and the maximum test current was 12.5kA. As a result, the energy sharing between cascaded SPDs was dependent on the voltage protection level of each SPD and the distance between two SPDs. An overview of how to select SPD ratings in applications of cascaded SPDs system was discussed based on the energy coordination between the two SPDs. The proposed test results for the energy coordination between two-stage cascaded SPDs can be used in effective applications of SPDs.

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참고문헌

  1. B. H. Lee, D. M. Lee, D. C. Cheong, S. B. Lee, and S. C. Lee, "Protection Effects According to the Conditions of Installations of SPDs for Information-Oriented Equipments", J. KIIEE, Vol.21, No.1, pp.35-41, 2007. https://doi.org/10.5207/JIEIE.2007.21.1.035
  2. Korea Electric Association ; Korea Electro-Technical Commission Guidance - Technical Guide for Selection and Application of Surge Protective Devices in Low-Voltage Power Systems, pp.10-27, 2011.
  3. IEC 62305-4; Protection against lightning - Part 4 : Electrical and electronic systems within structures, pp.76-86, 2010.
  4. Korea Electric Association ; Consumer's Electrical Installation Guide, pp.569-571, 2010.
  5. KS C IEC 60364-5-53; Electrical Installations of Building - Part 5-53: Selection and erection of electrical equipment - Isolation, switching and control, pp.4-10, 2005.
  6. IEC 61643-12; Low-voltage surge protective devices - Part 12 : Surge protective devices connected to low-voltage power distribution systems - Selection and application principles, pp.41-57, 90-97, 2007.
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  9. B. H. Lee, H. K. Shin, "Energy Coordination of Cascaded Voltage Limiting Type Surge Protective Devices", J. KIIEE, Vol.27, No.2, pp.29∼35, 2013. https://doi.org/10.5207/JIEIE.2013.27.2.029
  10. I. A. Metwally and F. H. Heidler, "Enhancement of the SPD Residual Voltage at Apparatus Terminals in Low-Voltage Power Systems", IEEE Trans. Power Delivery., Vol. 22, No. 4, pp.2207-2213, 2007. https://doi.org/10.1109/TPWRD.2007.905563
  11. KS C IEC 62305-1; Protection against lightning - Part 1: General priciple, pp.60-66, 2010.