Proceedings of the KIEE Conference (대한전기학회:학술대회논문집)
- 2003.07c
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- Pages.1849-1851
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- 2003
Lightning impulse characteristics of large-scale ground rods
대형 봉상 접지전극의 뇌 임펄스 특성
- Lee, B.H. (Inha Univ. HIERC.) ;
- Chang, K.C. (Inha Univ. HIERC.) ;
- Lee, D.M. (Inha Univ. HIERC.) ;
- Jeong, D.C. (Inha Univ. HIERC.) ;
- Lee, S.C. (Hanjin heavy industries) ;
- Ahn, C.H. (KEPCO) ;
- Jeong, Y.K. (Uijae electrical research institute)
- 이복희 (인하대 차세대 고전압전력기술연구센터) ;
- 장근철 (인하대 차세대 고전압전력기술연구센터) ;
- 이동문 (인하대 차세대 고전압전력기술연구센터) ;
- 정동철 (인하대 차세대 고전압전력기술연구센터) ;
- 이승칠 (한진중공업) ;
- 안창환 (한국전력공사) ;
- 정용기 (의제전기설비연구원)
- Published : 2003.07.21
Abstract
To obtain a low ground resistance in high resistivity soil, long vertical ground rods are often used. However, if the lightning current or fault current with high frequency flow into the grounding system, the ground impedance is significantly increased because of the inductive behavior. This paper presents how the impulse current works on the long vertical ground electrodes. The different shape of current was impressed between ground rods and auxiliary electrode by using impulse generator and the ground impedance was calculated from the ground potential rise.
Keywords