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

한국조명전기설비학회 (The Korean Institute of IIIuminating and Electrical Installation Engineers)
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접지전류의 주파수에 따른 수직 접지전극 주변에서 전위간섭 영향 분석

An Analysis of Potential Interference Effects in the Vicinity of Ground Rod Depending on Frequency of Ground Currents

  • 이복희 (인하대학교 IT공과대학 전기공학부) ;
  • 조용승 (인하대 대학원 전기공학과) ;
  • 최종혁 (인하대 대학원) ;
  • 양순만 (인하대 대학원, 금호산업(주))
  • 투고 : 2011.10.14
  • 심사 : 2011.10.27
  • 발행 : 2011.12.30
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초록

When the ground current is injected into the adjacent ground electrode, the potential interference is caused between ground electrodes, the ground potential interferences have been largely studied with power frequency fault currents. Many attempts to find the frequency-dependent grounding impedance report that the high frequency grounding impedance is very different with the ground resistance. This paper presents experimental data on the frequency-dependent potential interference effects in the vicinity of ground rod. The ground potential rises around the test ground rod of 4 or 6[m] were measured and discussed. As a result, the ground potential rises and potential interference factor are decreased with decreasing the grounding impedance. It was found that the lowering of grounding impedance is critical to reduce the ground potential interference effects.

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참고문헌

  1. 이복희, 이수봉, 이태형, 정현욱, 길형준, "봉상 접지전극 상호간의 전위간섭에 대한 평가", 조명.전기설비학회논문지, Vol. 20, No. 5, pp.92-98, 2006. https://doi.org/10.5207/JIEIE.2006.20.5.092
  2. S. Visacro, "A Comprehensive Approach to the Grounding Response to lightning Currents", IEEE Trans. on P.D., Vol 22 No. 1, pp.381-386, 2007. https://doi.org/10.1109/TPWRD.2006.876707
  3. L. Grecev, "Impulse Efficiency of Ground Electrodes", IEEE Trans. on. P.D. Vol. 24, No. 1, pp.441-451, 2009. https://doi.org/10.1109/TPWRD.2008.923396
  4. "接地.等電位ボンディング設計の實務知識", オーム社, p.94, 2003.
  5. IEEE Std. 81.2-1991, IEEE Guide for Measurement of Impedance and Safety Characteristics of Large, Extended or Interconnected Grounding Systems, pp.12-17, 1991.
  6. 최종혁, 최영철, 이복희, "수직 접지전극의 접지임피던스 측정에서 도전유도에 의한 오차 평가", 전기학회논문지, Vol. 58, No. 9, pp.1778-1783, 2009.
  7. 최종혁, 최영철, 성창훈, 김동성, 김태기, 이복희, 안창환, "매설지선 상호간 전위간섭계수의 주파수의존성 분석", 2010년도 대한전기학회 하계학술대회 논문집, pp.1442-1443, 2010.