Modeling and Simulation of HVDC Epoxy Spacer for SF6 Gas insulated system

High voltage insulation design skill is one of the key technologies for HVDC equipment to acquire its reliable performance. As DC electric field configuration is totally different from that of AC and its distribution is affected by the electrical conductivity of insulating materials. And DC electric field analysis should be determined considering voltage profile and temperature difference affecting the electrical conductivity. In this respect, DC insulation design of HVDC epoxy spacer in SF6 gas should be carried out considering DC electric field distribution with different temperature conditions. In this work, DC electric field analysis of epoxy spacer in SF6 was performed considering various epoxy materials with different nano fillers including Al2O3 and SiO2. Electrical conductivity of…