Correlation between space charge distributions and external current measurements during the discharge of low density polyethylene samples

Author

Morin, P. ; Alquie, C. ; Lewiner, J.

Author_Institution

Lab. d´´Electr. Generale, ESPCI, Paris, France

fYear

1994

fDate

7-9 Sep 1994

Firstpage

265

Lastpage

270

Abstract

A new experimental set-up which allows simultaneous measurements of both charge profiles by the pressure wave propagation (PWP) method and total external current has been developed. It has been applied to the study of low density polyethylene. The displacement current can be determined everywhere in the sample. During the discharge, the external current and displacement current are shown to be very similar at both electrodes. A good agreement is obtained between the zero-field plane current model and the measured external current

Keywords

dielectric measurement; electrets; electric breakdown; electric current measurement; polyethylene insulation; short-circuit currents; space charge; charge profiles; discharge; displacement current; electrodes; external current measurements; low density polyethylene; pressure wave propagation method; space charge distributions; zero-field plane current model; Charge measurement; Current measurement; Density measurement; Dielectric measurements; Electric variables measurement; Electrodes; Polyethylene; Pressure measurement; Pulse measurements; Space charge;

fLanguage

English

Publisher

ieee

Conference_Titel

Electrets, 1994. (ISE 8), 8th International Symposium on

Conference_Location

Paris

Print_ISBN

0-7803-1940-0

Type

conf

DOI

10.1109/ISE.1994.514779

Filename

514779