Study of Electrical Characteristics of Epoxy Resin Under Different Environmental Conditions of Condensation

Currently, testing of epoxy resin insulation parameters yields good results; however, existing research results primarily focus on the influence of epoxy resin degradation on insulation characteristics, and there is a lack of research on the discharge characteristics of epoxy resin under condensation conditions with varying environmental factors and aging degrees. The electrical properties of epoxy resin are investigated in this work from two perspectives: environmental influences and corona aging effects. The results show that both environmental factors and hygrothermal corona aging can affect the condensation state and condensation discharge characteristics of an epoxy resin surface, but in different ways, with the former primarily changing the surface medium and the latter changing the material structure itself.