Surface Discharge Mechanism of Epoxy/Al2O3 Composites in SF6 Under Long-Term DC and AC Stresses
To investigate the impact of long-term voltage stress on the surface charge accumulation and discharge characteristics of insulating materials, Epoxy/Al2O3 composites were subjected to DC and AC voltage application tests for durations of seven and 30 days. By integrating surface charge measurements, isothermal surface...