The Transactions of the Korean Institute of Electrical Engineers A (대한전기학회논문지:전력기술부문A)

The Korean Institute of Electrical Engineers (대한전기학회)
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The Comparison on Grounding Characteristics for 3 Grounding Systems

3가지 접지방식에 대한 접지특성비교

  • 신동호 (동국대 공대 전기공학과) ;
  • 김용 (동국대 공대 전기공학과) ;
  • 백수현 (동국대 공대 전기공학과) ;
  • 이은영 (동국대 공대 전기공학과) ;
  • 김필수 (대림대학 자동차과) ;
  • 조대훈 (한국 XIT(주) 연구개발부)
  • Published : 2000.06.01
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Abstract

This paper presents a comparison on the resistance and characteristics of transient response of grounding systems under surge currents using frequency domain electromagnetic field analysis software package and field test. Analysis is done by computer model, based on electromagnetic field theory approach, that accurately takes into account frequency dependent characteristics of the system. The transient performance of three grounding systems is analyzed by comparison of frequency dependent impedance and the maximal transient GPR. A double exponential lighting surge current is injected at one corner of the grounding systems. The transient GPRs a rod grounding systems are higher than mesh or electrolytic grounding systems. Af field test, the results of resistance measurement and time-variant of ground resistance slightly reduce electorlytic grounding systems less than rod and mesh grounding systems.

Keywords

References

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