| Title |
Research on Comparison of Individual and Connecting Grounding Electrode for Potential Rise Distribution |
| Authors |
Hyeong-Joon KIl ; Chung-Seog Choi ; Bok-Hee Lee |
| Keywords |
Grounding electrode ; Potential rise ; Hemisphencal water tank experimental apparatus ; Distance |
| Abstract |
This paper deals with a comparison of individual and connecting grounding electrode for potential rise. When a test current flowed through grounding electrode, potential rise was measured and analyzed for grounding method using a electrolytic tank in real time. In order to analyze the potential rise of grounding systems, a hemispherical water tank experimental apparatus was studied. Potential rise was measured and analyzed regarding the grounding method and distance by using this apparatus. The apparatus was composed of a hemispherical water tank, AC power supply, a movable potentiometer, and test grounding electrodes. The potential rise was measured by the horizontal moving probe of the potentiometer. The grounding electrodes were designed and fabricated with ground rods on a scale of one-eightieth. Potential rises of individual grounding electrode were higher than those of connecting grounding electrode. The distributions of surface potential are dependent on the distance from grounding electrode. |