접지시스템 최적 설계 사례 연구

Abstract

The grounding system is a power system facility that establishes safety in the work place by decreasing the induced voltage by burying ground conductors and electrodes in the ground. The most important variable affecting the type and size of the grounding system is the soil resistivity. In order to obtain resonable and effective soil resistivity, necessary and sufficient field measurements as well as selection of a suitable soil model are essentially required. The grounding system is implemented in various ways, such as the selection of ground conductors and electrodes, as well as the mesh configuration of a ground grid and its burial depth. Economical factors such as material cost and construction cost of the grounding system are also required as variables for optimization. This paper is a case study of designing and reviewing a grounding system that reflects efficiency and economic feasibility using the grounding grid design and analysis software.