Thermally stimulated electrical measurement of an LDPE film stressed under a nonuniform electric field: influence of the space charge on treeing

Author

Fukuzawa, Masahiro ; Mitsumasa, I.

Author_Institution

Dept. of Electr. Eng., Kyushu Sangyo Univ., Fukuoka, Japan

fYear

1991

fDate

8-12 Jul 1991

Firstpage

121

Abstract

The authors measured the TSC (thermally stimulated current) and TSSP (thermally stimulated surface potential) on low-density polyethylene (LDPE) films sandwiched between needle electrodes and plane electrodes, and then evaluated the space charges. To confirm that injection occurs from needle electrodes and that injection space charges are trapped around the needle tips, the experiments were carried out with different numbers of needle electrodes, e.g. 20. Finally, the authors examined the influence of the space charges on the mechanisms of treeing in an LDPE film by measuring the inception voltage of treeing in the film

Keywords

electric breakdown of solids; organic insulating materials; polymers; thermally stimulated currents; LDPE film; TSC; TSSP; inception voltage of treeing; injection space charges; low-density polyethylene; needle tips; needle-plane electrodes; nonuniform electric field; space charge; thermally stimulated current; thermally stimulated surface potential; treeing; Capacitance; Charge measurement; Current measurement; Electric variables measurement; Electrodes; Needles; Space charge; Space technology; Stress measurement; Thermal stresses;

fLanguage

English

Publisher

ieee

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

Type

conf

DOI

10.1109/ICPADM.1991.172029

Filename

172029