Title :
Effect of antioxidants on inception of electrical trees in polyethylene
Author :
Zelenyanszki, E.
Author_Institution :
Furukawa Electr. Inst. of Technol., Cservenka
Abstract :
Several PE and XLPE (cross-linked polyethylene) compounds containing different combinations of antioxidants were investigated. Treeing inception voltage was measured using a slow ramp stress of power frequency. The evaluated results refer to an interaction between different types of antioxidants. Some combinations were proved to be advantageous. However, combinations with antagonistic effects were also found. It is concluded that, by means of systematic investigations, combinations of antioxidants can be screened which are able to improve the resistance of PE and XLPE compounds both to electric and thermal aging. The enhanced resistance to electrical deterioration thus achieved provides a good start for further stabilization of insulating materials intended for EHV applications
Keywords :
electric breakdown of solids; high-voltage engineering; materials testing; organic insulating materials; polymers; EHV applications; XLPE; antagonistic effects; antioxidants effect; combinations of antioxidants; cross-linked polyethylene; electric aging; inception of electrical trees; polyethylene; resistance to electrical deterioration; slow ramp stress of power frequency; stabilization of insulating materials; systematic investigations; thermal aging; treeing inception voltage; Circuit testing; Electrodes; Electronic equipment testing; Needles; Oxidation; Polyethylene; Polymers; Slabs; Temperature; Voltage;
Conference_Titel :
Properties and Applications of Dielectric Materials, 1991., Proceedings of the 3rd International Conference on
Conference_Location :
Tokyo
Print_ISBN :
0-87942-568-7
DOI :
10.1109/ICPADM.1991.172028
