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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Determination of the Length of Coaxial Type Carbon Grounding Electrode to Minimize the Fluctuation of Grounding Impedance

접지임피던스의 변동이 최소가 되는 동축형 탄소접지전극의 길이의 산정

  • 이강수 (인하대학교 대학원) ;
  • 김종호 (인하대 대학원 전기공학과) ;
  • 이복희 (인하대학교 IT공대 전기공학부)
  • Received : 2010.08.12
  • Accepted : 2010.12.14
  • Published : 2010.12.31
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Abstract

For the surge currents like lightning or ground fault currents containing high frequency components which cause the electromagnetic interferences for the electronic devices and communication equipment, the grounding impedances give the significantly composite characteristics which are dependent on the frequency of surge currents. In this paper, the analytical model and method for determining the optimal length of the newly developed coaxial type carbon ground electrode which has a little fluctuation in grounding impedance with frequency. The length of minimizing the fluctuation of grounding impedance by changing frequency from 100[Hz] to 1[MHz] was determined, and the validity of this proposed method was confirmed by comparing with the simulated and measured data.

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References

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