Title :
Influence of morphology and thermal stability on tree initiation in polyethylene films
Author :
Yan, Ping ; Zhou, Yuanxiang ; Sun, Guansheng ; Yoshimura, Noboru
Author_Institution :
Inst. of Electr. Eng., Acad. Sinica, Beijing, China
Abstract :
Electrical treeing can cause fatal damage to solid insulation devices. In this paper, the electrical tree initiation of polyethylene films after annealing was studied. In addition, the parameter change of PE morphology and thermal stability were also measured and analyzed. It was found that the tree initiation voltage increases with the thickness of lamellae, as well as the tree initiation voltage increases with the increase of melting point. From these results, we presumed that the thermal stability is inherently related with the thickness of lamellae, and thus the thickness of lamellae is one of the important factors that affect the tree initiation process
Keywords :
annealing; melting point; polyethylene insulation; polymer films; polymer structure; thermal stability; trees (electrical); annealing; electrical tree initiation; electrical treeing; initiation voltage; lamellae thickness; melting point; morphology; polyethylene films; solid insulation; thermal stability; tree initiation; Annealing; Dielectrics and electrical insulation; Morphology; Plastic films; Polyethylene; Solids; Stability analysis; Thermal stability; Trees - insulation; Voltage;
Conference_Titel :
Electrical Insulation and Dielectric Phenomena, 2001 Annual Report. Conference on
Conference_Location :
Kitchener, Ont.
Print_ISBN :
0-7803-7053-8
DOI :
10.1109/CEIDP.2001.963531
