Electrical aging of silicone oil
- Resource Type
- Authors
- Alun S. Vaughan; Ian L. Hosier; Oliver Cwikowski
- Source
- 2020 IEEE Electrical Insulation Conference (EIC).
- Subject
- Remedial action
chemistry.chemical_compound
Electrical aging
Materials science
chemistry
Operator (physics)
Electric discharge
Dielectric
Composite material
Silicone oil
- Language
In view of its widespread use in cable terminations, new results pertaining to electrical aging (i.e. exposure to repeated electrical discharge events) of silicone oil are reported. A new piece of equipment allowed the discharge characteristics to be controlled and the resulting blackening was correlated to the change in dielectric properties. End of life conditions were determined and the feasibility of a simple optical probe was explored. This could give the operator warning of when the oil is excessively aged, allowing remedial action to be taken.