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The Comparison and Analysis about Earth Resistance for Measuring of Earth Resistance by Measurement Positions of Auxiliary Poles

접지저항 측정을 위한 보조전극 위치에 따른 접지저항 비교 분석

  • 한운기 (한국전기안전공사 전기안전연구원 설비안전연구팀) ;
  • 정진수 (한국전기안전공사 전기안전연구원 설비안전연구팀) ;
  • 김재철 (숭실대학교 전기공학부)
  • Published : 2009.10.31

Abstract

This paper describes the comparison and analysis about measurement method of earthing resistance by positions of potential pole and current pole. In KOREA, a diagonal by 6.5 times of earthing electrode for measurement of earthing resistances but this method was almost impossible in the downtown area. For solving this problem, in this paper measuring of earthing resistance changing parameters. The parameter was a distances of earthing electrode, potential pole & current pole and the another parameter was an angles of potential pole & current pole. Analysis result, earthing resistance stability that conditions. Fist, distance from earthing electrode to current pole was over 50[m] and distance from earthing electrode to potential pole was over 30[m]. Second, angles of potential pole & current pole was over $45[^{\circ}]$.

본 논문에서는 전류보조전극 및 전위보조전극의 접지저항 측정위치에 따른 접지저항 측정결과를 비교 분석하였다. 국내의 경우 접지전극의 대각선 길이의 6.5배 이상에서 접지저항을 측정하고 있으나 도심지역에서는 이와 같은 방법은 한계를 나타내고 있다. 이를 해결하기 위해 본 논문에서는 접지저항 측정시 접지전극, 전류보조전극과 전위 보조전극간의 거리, 각도를 변경하여 접지저항을 측정하였다. 측정결과 접지전극과 전류보조전극간의 거리를 50[m] 이상, 전위보조전극을 30[m] 이상 이격을 하고 전류보조전극과 전위보조전극을 45도 이상 각도를 유지할 경우 안정적인 접지저항이 측정되었다.

Keywords

References

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Cited by

  1. Grounding Resistance Measurement and Analysis of Building Structures for Applying as Safety Earthing vol.26, pp.8, 2012, https://doi.org/10.5207/JIEIE.2012.26.8.050