Overview on computational methods of Gas Insulated Substation grounding gridanalysis

The following paper presents an overview of the current state of art on the subject of Gas Insulated Substation (GIS) technology in order to understand the necessity of the grounding grid design models. Furthermore, different studies regarding existing applied technologies are considered in order to create an accurate review on GIS grounding models. For a better understanding of current GIS modeling methods an evaluation of the procedures regarding GIS grounding system design is conducted. The focus was to identify a suitable model technique for the GIS assemble and to obtain a proper grounding grid design procedure.