The influence of pre-conditioning on space charge formation in LDPE

Author

Fleming, Robert J. ; Henriksen, Mogens ; Holboll, Joachim T.

Author_Institution

Dept. of Phys., Monash Univ., Clayton, Vic., Australia

Volume

1

fYear

1996

fDate

16-19 Jun 1996

Firstpage

188

Abstract

In this paper, the authors present space charge accumulation data for planar low density polyethylene samples subjected to 20 kV/mm DC fields at room temperature. The data were obtained using the laser-induced-pressure-pulse (LIPP) technique. Some of the samples were conditioned by holding them at 40°C in short-circuit at rotary pump pressure for 48 hrs prior to measurement. Such conditioning had no consistent effect on the space charge. The extent of charge injection/extraction at the semicon electrodes appeared to vary considerably between samples

Keywords

electric breakdown; insulation testing; measurement by laser beam; polyethylene insulation; space charge; 40 C; 48 h; LDPE insulation; charge injection/extraction; electrical insulation tests; laser-induced pressure pulse technique; low density polyethylene; pre-conditioning; short-circuit; space charge accumulation; space charge formation; Charge measurement; Circuits; Current measurement; Electrodes; Polyethylene; Pressure measurement; Pulse measurements; Pump lasers; Space charge; Temperature measurement;

fLanguage

English

Publisher

ieee

Conference_Titel

Electrical Insulation, 1996., Conference Record of the 1996 IEEE International Symposium on

Conference_Location

Montreal, Que.

ISSN

1089-084X

Print_ISBN

0-7803-3531-7

Type

conf

DOI

10.1109/ELINSL.1996.549314

Filename

549314