Measurements of space charge distribution up to electrical breakdown and pressure wave generated at electrical breakdown in PP film

Author

Fukuma, Masumi ; Nagao, Masayuku ; Kosaki, Masamitsu

Author_Institution

Matsue Coll. of Technol., Japan

Volume

1

fYear

1997

Firstpage

114

Abstract

Electrical breakdown of a polymer film generates a pressure wave, which is considered to include information about the breakdown initiation point. In this paper, we measure the breakdown pressure wave and the space charge distribution up to electrical breakdown by using a pulse electro-acoustic method in a 30 μm thick polypropylene film. We discuss electrical breakdown phenomena based on the breakdown pressure wave and the dependence of space charge distribution on applied field and temperature. The experimental results suggest that the electrical breakdown phenomena are affected by the hetero space charge accumulation. The initiation point of electrical breakdown corresponds to the position of hereto space charge accumulation in a 30 μm thick polypropylene film

Keywords

acoustoelectric devices; electric breakdown; insulation testing; organic insulating materials; polymer films; power capacitors; space charge; space charge waves; 30 mum; breakdown initiation point; breakdown pressure wave; electrical breakdown; hetero space charge accumulation; initiation point; polypropylene film; power capacitor insulation; pressure wave generation; pulse electro-acoustic method; space charge distribution; temperature dependence; Charge measurement; Current measurement; Electric breakdown; Electric variables measurement; Polymer films; Pressure measurement; Pulse measurements; Pulsed electroacoustic methods; Space charge; Thickness measurement;

fLanguage

English

Publisher

ieee

Conference_Titel

Properties and Applications of Dielectric Materials, 1997., Proceedings of the 5th International Conference on

Conference_Location

Seoul

Print_ISBN

0-7803-2651-2

Type

conf

DOI

10.1109/ICPADM.1997.617541

Filename

617541