Title |
A Study on the Measurement of Grounding Resistance based on the Earth Surface Potential Analysis |
Authors |
Jang-Wan Yoon ; Yong-Ho Ahn ; Gil-Jo Jung ; Byung-Sung Han |
Abstract |
Measurement of ground resistance is the basic and important procedure to evaluate the proriety of grounding systems performance. In the field, however, it is not an easy task to measure ground resistance accurately, because locating a right position of zero potential for accurate GPR(Ground Potential Rise) measurement is very difficult, especially in case of a grounding electrode with large dimension. In this paper, the estimation method of ground resistance by analysing earth surface potential distribution around the grounding electrodes has been described. |