대한전기학회:학술대회논문집 (Proceedings of the KIEE Conference)
- 대한전기학회 1997년도 추계학술대회 논문집 학회본부
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- Pages.361-363
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- 1997
임펄스 전류에 대한 메쉬접지계의 과도임피던스 특성
Transient Impedance Characteristics of Mesh Grounding System under Impulse Current
- Lee, Bok-Hee (Dept. of Electrical Engineering, College of Engineering, Inha University) ;
- Park, Jhong-Soon (Dept. of Electrical Engineering, College of Engineering, Inha University)
- 발행 : 1997.11.29
초록
Electronic devices are very weak against lightning surges injected from grounding systems and can be damaged. The malfunction and damage of electronic circuits bring about several disadvantages such as low operation performances, a lot of economical losses, and etc. In order to obtain the effective protection measure of electronic devices from overvoltages and lightning surges, the analysis of the transient grounding impedances is very important. The aim of this work is to evaluate the behaviors of transient grounding impedances under impulse currents and to investigate the effect of grounding lead wire. Z-t, Z-i and V-i curves of transient grounding impedance under impulse current waveforms have been measured and analyzed.
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