| Abstract | This special issue focuses on polymeric materials for HVDC insulation and the following topics are included: Characterization of polymeric material for HVDC insulation including electrical, physical and chemical analysis; Flashover and tracking phenomenon in HVDC GIS and outdoor insulators; Partial discharge and breakdown in HVDC bushings; Electrical tree development and breakdown processes in HVDC insulation materials; Surface charge, space charge and interfacial charge in HVDC insulation materials; Ageing and life expectancy of HVDC insulation materials; Nanotechnologies and nanodielectrics for HVDC insulation materials; and New materials for HVDC insulation. Charge physics, including charge test methods, charge accumulation, charge injection, charge transportation, as well as charge decay properties of polymeric materials, have all been studied and documented in this special issue. The applications of novel dielectric materials to suppress charge accumulation of polymeric materials for HVDC insulation are included in this special issue. Research on nonlinear and functionally graded materials as HVDC insulation are also important topics in this special issue. In this special issue, 26 papers were accepted at the end of the peer review process. Although those papers have covered the main topics related to polymer material dielectrics for HVDC Insulation, but it is still far from solving all of the important issues. We wish this special issue can draw more attention to the field of polymeric materials for HVDC insulation. |
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