Assessment of ATH-Filled Silicone Rubber Under DC Dry Band Arcing
- Resource Type
- Conference
- Authors
- Mehmood, Basharat; Ghunem, Refat; El-Hag, Ayman; Hassan, Mohammad K.; Al-Sulaiti, Leena; Abdala, Ahmed
- Source
- 2023 24th International Middle East Power System Conference (MEPCON) Power System Conference (MEPCON), 2023 24th International Middle East. :1-4 Dec, 2023
- Subject
- Computing and Processing
Engineering Profession
General Topics for Engineers
Nuclear Engineering
Robotics and Control Systems
Signal Processing and Analysis
Transportation
Degradation
Temperature dependence
Arc discharges
Voltage
Insulation life
Rubber
Leakage currents
Alumina trihydrate
dry band arcing
erosion
inclined plane test
outdoor insulation
silicone rubber
tracking
- Language
This paper investigates the tracking and erosion performance of silicone rubber filled with alumina trihydrate under DC dry band arcing in the inclined plane tracking and erosion test (IPT). Alumina trihydrate is incorporated into silicone rubber at 50 wt.% loading level for preparing silicone rubber composites, which are exposed to DC dry band arcing under mild and severe voltage levels in the inclined plane tracking and erosion test. Test outcomes indicate that the mechanism of silicone rubber deterioration changes with respect to the severity of the DC dry band arcing. It is found that dry band arcing tends to stimulate surface tracking under mild voltage levels and erosion due to thermal degradation under relatively higher voltage levels (critical). Moreover, test results indicate that silicone rubber erosion is not solely influenced by the dry band arcing power derived from the leakage current, but also dependent on additional contributing mechanisms leading to elevated surface temperatures and severe erosion.