| Title |
A Study on the Interpretation Technique of Fall-Of-Potential Curve for Grounding Performance Evaluation of a Large Grounding Electrode Network |
| Authors |
Jong-Ki Choi ; Hee-Young Ryu ; Dong-Il Lee ; Gil-Jo Jung ; Kyung-Chul Kim |
| Keywords |
Ground resistance ; Fall-Of-Potential Method ; Ground electrode network |
| Abstract |
Measuring ground resistance is a typical way of performance evaluation of a grounding electrode. Among various ground resistance measurement methods, FOP (Fall-Of-Potential) method has been widely used, especially in case of a relatively large grounding electrode, such as a substation grounding mesh grid. Since FOP measurement line has to be increased as the size of grounding electrode increases, however, it is often that securing long enough FOP-line is practically impossible. In this paper, a sophisticated interpretation method of FOP measurement curve, which is applicable to large grounding electrode networks, is presented. |