DOI QR코드

DOI QR Code

Protection Effects According to the Conditions of Installations of SPDs for Information-Oriented Equipments

정보화 기기용 SPD의 설치조건에 따른 보호효과

  • Published : 2007.01.31

Abstract

Recently, there are increasing social needs for stable supply of electric power and securing high quality of information and communication services. In this work, to propose the effective protection countermeasures of information-oriented equipments against lightning surges, the protection effects of surge protective devices(SPDs) were experimentally investigated using actual-sized test circuits in various installation conditions. As a result, it was found that the protection effect of SPDs is quite different depending on the factors, such as the grounding system of power source, numbers of branch circuits, wiring method of grounding leads, and etc. In case of installing SPDs for information-oriented equipments, including all electric power lines and communication lines, the common grounding should be the most effective. Wiring method containing grounding leads with power lines in metal conduit is suitable to improve the surge cutoff performance of SPDs.

최근 고품질의 정보통신서비스와 안정한 전력공급에 대한 사회적 요구가 증가하고 있다. 본 연구에서는 뇌서지로부터 정보통신설비를 효과적으로 보호하는 대책을 제안하기 위해서 실규모 실험회로를 적용하여 여러 가지 설치조건에 따른 서지보호기의 보호효과를 실험적으로 조사하였다. 그 결과 전원계통의 접지방식, 분기회로의 수, 접지선의 배선방법 등에 따라 서지보호기의 보호효과는 크게 다른 것으로 밝혀졌다. 정보화 기기용 서지보호기를 설치하는 경우, 전원선과 통신선을 포함하는 공통접지방식과 접지선을 전원선과 일괄하여 금속관 내에 배선하는 것이 서지보호기의 서지차단성능의 향상에 가장 효과적이었다.

Keywords

References

  1. B. Richter, 'Surge Protective Devices for Low-Voltage Power Distribution Systems, -The New IEC- Standard and First Experience with It', Proc, 23rd ICLP, Paper No.7C-1, pp764-767. 1998
  2. R. B. Standler, 'Protection of Electronic Circuits from Ocerxottages', John Wiley & Sons, lnc., First edition, New York. pp.3-33, 1989
  3. 이복희, 이동문, 강성만, 엄주홍, 이승칠, '정보통신용 뇌서지 보호장치의 효과적인 설치기법', 한국조명.설비학회 논문지, Vol.16, No.5, pp.90-96, 2002
  4. M B. Marz. S. R. Mendis, 'Protecting load devices form the effects of low-side surges', IEEE Trans., Vol. 29, No. 6, November-December 1993
  5. 이복희, 이동문, 강성만, 이수봉, '전원계통의 접지방식에 따른 서지보호기의 보호효과', 조명.전기설비학회 논문지, Vol.17, No.6, pp.66-71, 2003. 11
  6. 이복희, 이동문, 이승칠. ' SPD의 설치조건이 보호효과에 미치는 영향', 조명.전기설비학회 논문지, Vol.20, No.2, pp.60-67, 2006. 2 https://doi.org/10.5207/JIEIE.2006.20.2.060
  7. T. Otsuka, K. lvIaezaki. 'Experirrental study of lightning surge current condition of low-voltage distribution line and house wires.', 電氣學會電力.エネルギ一部門大會, 電氣設備學會, pp.21-27, 2000
  8. K. Nakada, S. Shirrada, N. ltarroto, H. Sugimoto, H. Arai & Asakawa, 'Lightning Protection Methods for customer's Facility Using Common Grounding Wire'. 電氣學會電力.エネルギ一部門大會, 電氣設備學會, pp.417-423, 2001
  9. K. Nakada, H. Sugimoto, S. Shimada, Y. Asaoka & A Asakawa, 'Countermeasures for controlling lightning-caused overvoltage on indoor wiring with communication line', 電氣學會電力.エネルギ一部門大會, 電氣設備學會, pp.7-13, 2001

Cited by

  1. Experimental Examinations on Protective Effects of SPDs Associated with the Protective Distance and Type of Load vol.26, pp.10, 2012, https://doi.org/10.5207/JIEIE.2012.26.10.081
  2. Energy Coordination of Cascaded Voltage Limiting Type Surge Protective Devices vol.27, pp.2, 2013, https://doi.org/10.5207/JIEIE.2013.27.2.029
  3. Protection Characteristics of Two-Stage Cascade SPD Systems vol.27, pp.5, 2013, https://doi.org/10.5207/JIEIE.2013.27.5.095
  4. Protection coordination between residual current device and surge protective devices in low-voltage consumer's installations vol.27, pp.6, 2013, https://doi.org/10.5207/JIEIE.2013.27.6.075
  5. Simulation Method on the Protection Effects of Voltage-Limiting Type SPDs Associated with the Protective Distance vol.27, pp.7, 2013, https://doi.org/10.5207/JIEIE.2013.27.7.089
  6. Energy Coordination between Cascaded Voltage Limiting Type SPDs in Surge Currents due to Direct Lightning Flashes vol.28, pp.5, 2014, https://doi.org/10.5207/JIEIE.2014.28.5.068