Surface Flashover Characteristics of Epoxy Resin Under DC Voltage and its Modification Method

Abstract Epoxy resin is used as insulating material in electrical equipment due to its perfect electrical, mechanical and thermal properties. The accumulation of charge on the surface promotion flashover, however, often lead insulation failure directly endanger operation safety. Therefore, improving performance epoxy materials great significance for protecting high-voltage power equipment. In this paper, a blend-modified was synthesized by DGEBA DCPDE, dissipation flashover characteristics with DC voltage were tested. experimental results show that distribution can be effectively changed changing ratio resin, which meanful improve material’s