Evaluation of internal electric field of PE/EVA composite systems by TSC-separation methods

Author

Cai, Gang

Author_Institution

Electr. Power Res. Inst., Minist. of Energy, Beijing

Volume

25

Issue

4

fYear

1990

fDate

8/1/1990 12:00:00 AM

Firstpage

702

Lastpage

706

Abstract

For the purpose of internal field evaluation of an insulating composite, the Maxwell-Wagner model is usually applied. However, it is constrained by the possibility of ignoring the influence of interfaces. In order to evaluate internal field under any conditions, the thermally stimulated current (TSC) separation method was developed. This method is useful for analysis of a composite if it is dipolar. Details are provided of the TSC separation method and the experimental results on polyethylene and an ethylene-vinyl acetate copolymer composite. It proved that this method is not only useful for internal field analysis but could also be used to identify the space charge location inside the composite

Keywords

composite insulating materials; organic insulating materials; polymer blends; thermally stimulated currents; Maxwell-Wagner model; TSC-separation methods; copolymer; dipolar; ethylene-vinyl acetate; insulating composite; internal electric field; internal field evaluation; polyethylene; space charge location; thermally stimulated current; Current measurement; Dielectrics and electrical insulation; Electric breakdown; Electric variables measurement; Electrodes; Interconnected systems; Polyethylene; Power system modeling; Shafts; Temperature;

fLanguage

English

Journal_Title

Electrical Insulation, IEEE Transactions on

Publisher

ieee

ISSN

0018-9367

Type

jour

DOI

10.1109/14.57093

Filename

57093