Proceedings of the KIEE Conference (대한전기학회:학술대회논문집)
- 2003.10a
- /
- Pages.233-235
- /
- 2003
Lightning impulse characteristics of large-scale ground rods with different length
대형 봉상 접지전극의 길이에 따른 뇌 임펄스 특성
- Lee, B.H. (Inha Univ. HEIRC) ;
- Chang, K.C. (Inha Univ. HEIRC) ;
-
Eom, J.H.
(Inha Univ. HEIRC)
;
- Kim, B.K. (Inha Univ. HEIRC) ;
- Jeong, D.C. (Inha Univ. HEIRC) ;
-
Kil, H.J.
(KESCO)
- 이복희 (인하대 차세대 고전압전력기술연구센터) ;
- 장근철 (인하대 차세대 고전압전력기술연구센터) ;
-
엄주홍
(인하대 차세대 고전압전력기술연구센터)
;
- 김병근 (인하대 차세대 고전압전력기술연구센터) ;
- 정동철 (인하대 차세대 고전압전력기술연구센터) ;
-
길형준
(한국전기안전공사)
- Published : 2003.10.31
Abstract
To obtain a low ground resistance in high resistivity soil or in insufficient place such as downtown, long vertical ground rods are often used. However, if the lightning current or fault current with high frequency flows into the grounding system, the ground impedance is significantly increased. This paper presents how the impulse current works on the long vertical ground rods with a different length. As a result, it can be estimated what the waveform is composed of and how the GPR is affected by the rate of current change.
Keywords