Electrodes and charge injection in low-density polyethylene using the pulsed electroacoustic technique

Author

Chen, G. ; Tay, T.Y.G. ; Davies, A.E. ; Tanaka, Y. ; Takada, T.

Author_Institution

Dept. of Electron. & Comput. Sci., Southampton Univ., UK

Volume

8

Issue

6

fYear

2001

fDate

12/1/2001 12:00:00 AM

Firstpage

867

Lastpage

873

Abstract

The effects of electrode materials on space charge formation in low-density polyethylene (LDPE) have been investigated experimentally using the pulsed electroacoustic (PEA) technique. Common electrode materials used in either the laboratory or power cable industry were selected, i.e. aluminum, gold and carbon loaded crosslinked polyethylene (XLPE), and space charge accumulation after the application of high electric stress was monitored. Experimental results demonstrated that charge injection processes take place in all cases once the applied stress has exceeded a threshold. However the amount of charge, and the polarity of the dominant injected charges showed a significant dependence on the electrode materials under the same applied electric stress

Keywords

acoustoelectric effects; charge injection; electrodes; polyethylene insulation; polymer films; pulse measurement; space charge; Al; Au; LDPE; carbon loaded crosslinked polyethylene; charge distribution; charge injection; electrode material dependence; high electric stress; injected charge polarity; low-density polyethylene; power cable industry; pulsed electroacoustic technique; space charge formation; Aerospace industry; Electrodes; Laboratories; Metals industry; Organic materials; Polyethylene; Power cables; Pulsed electroacoustic methods; Space charge; Stress;

fLanguage

English

Journal_Title

Dielectrics and Electrical Insulation, IEEE Transactions on

Publisher

ieee

ISSN

1070-9878

Type

jour

DOI

10.1109/94.971439

Filename

971439