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

The Korean Institute of IIIuminating and Electrical Installation Engineers (한국조명전기설비학회)
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Simulation Method on the Protection Effects of Voltage-Limiting Type SPDs Associated with the Protective Distance

보호거리에 따른 전압제한형 SPD의 보호효과에 대한 시뮬레이션기법

  • 이복희 (인하대학교 IT공대 전기공학부) ;
  • 김유하 (인하대학원 전기공학과) ;
  • 안창환 (인하공업전문대학 디지털전자과)
  • Received : 2013.04.22
  • Accepted : 2013.05.20
  • Published : 2013.07.31
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Abstract

This paper presents a method of simulating the protection effects of surge protective devices(SPDs) depending on the protective distance and types of input impedance of load to be protected. In order to analyze the protective performances of voltage-limiting type SPDs associated with the reflection and oscillation phenomena, the terminal voltage across load being protected and the residual voltage of SPDs were simulated by using EMTP model as functions of the protective distance and types of input impedance of loads. As a consequence, SPDs should be installed by taking into account the protective distance and input impedance of loads to achieve reliable protection of electrical and electronic equipment from lightning and switching surges. It is expected that the simulation method proposed in this paper could be practically used in design for installing SPDs in low-voltage distribution systems.

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References

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