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Study on the Between the Grounding Resistance and Grounding Electrode using Mesh Grounding Electrodes and a Shielding Panel

메쉬접지전극과 차폐패넬을 이용한 접지저항 및 접지전극간의 영향에 관한 연구

  • Leeg, Chung-sik (Department of Electrical & Electronic Engineering, Daewon University College) ;
  • Cho, Moon-taek (Department of Electrical & Electronic Engineering, Daewon University College) ;
  • Na, Seung-kwon (Department of Electronics and Communication, Korea Polytechnic College Gangneung Campus)
  • 이충식 (대원대학교 전기전자과) ;
  • 조문택 (대원대학교 전기전자과) ;
  • 나승권 (한국폴리텍대학 강릉캠퍼스 전자통신학과)
  • Received : 2015.05.18
  • Accepted : 2015.06.24
  • Published : 2015.06.30

Abstract

In this paper, the electric potential of electrode surface is investigated by assuming them as two dimensional sets of point current sources. And, the simulated water tank is manufactured as a reduced scale of the earth. Henceforth, the adequate model electrode for test is decided to decrease experimental errors relevant to the limitation of the size of the water tank. The one of important things of this work, the deduction method of the potential interference factor is proposed, which used as the criterion of the potential interference according to the shape of conductors and the laying conditions, when multiple grounding conductors are situated at the same resistance grounding area. Also, the validity of this theory is verified from a numerical simulation of the grounding electrode to be used in experiments, and this study is realized by the verified theory and the simulated experiments.

본 논문에서는 접지전극이 상호 간섭의 문제가 발생했을 때 파급효과가 큰 차폐시스템의 패넬과 접지전극으로 널리 사용되고 있는 봉상전극, 메쉬전극, 판상전극을 2차원에 점 전류원의 집합체로 가정하여 이에 대한 전극표면전위를 이용하였다. 실험에 사용한 수조모델의 유한성과 축척에 의해 제작된 모델전극의 축척한계를 수조모델의 크기에 대해 실험오차에 따른 중단오차를 최대한 줄이는 수법으로 실험모델전극을 선정하였다. 복수의 접지도체가 동일 접지저항구역 내에 존재할 경우 도체의 형상 및 매설 조건에 따른 간섭효과의 척도로 사용되는 전위간섭계수의 도출 방법을 제시하였다. 또한 실험에 사용한 접지전극의 수치시뮬레이션을 통해 이론의 타당성을 검증하고, 검증된 이론과 모의실험을 통해 본 연구를 구체화 하였다.

Keywords

References

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