Partial discharge patterns in polypropylene and polyethyleneterephthalate films

Author

Florkowska, B.

Author_Institution

Electr. Power Inst., Univ. of Min. & Metall., Cracow, Poland

Volume

2

fYear

1994

fDate

3-8 Jul 1994

Firstpage

562

Abstract

Phase-resolved 3-dimensional partial discharge (PD) patterns D(n,q,φ) were obtained for samples of polypropylene (PP) foil and polyethyleneterephthalate (PET) foil at increasing and decreasing test voltages. A computer-aided measuring system was used for the registration of PD quantities in real time. The characteristics of the total PD number versus test voltage appear to have higher values at increasing than at decreasing voltage, which is observed as a hysteresis loop. The slopes of these loops depend upon the foils (PP, PET). The possible reasons of the disappearance of PD pulses are discussed

Keywords

automatic test equipment; automatic testing; electric breakdown; electrical engineering computing; insulation testing; organic insulating materials; partial discharges; polyethylene insulation; polymer films; real-time systems; characteristics; computer-aided measuring system; discharge pulses; electrical insulating films; hysteresis loop; phase-resolved 3-D discharge; polyethyleneterephthalate foils; polypropylene foils; real-time; Dielectric materials; Hysteresis; Partial discharges; Plastic films; Polymers; Positron emission tomography; Real time systems; Solids; Testing; Voltage;

fLanguage

English

Publisher

ieee

Conference_Titel

Properties and Applications of Dielectric Materials, 1994., Proceedings of the 4th International Conference on

Conference_Location

Brisbane, Qld.

Print_ISBN

0-7803-1307-0

Type

conf

DOI

10.1109/ICPADM.1994.414072

Filename

414072