High-field conduction and space charge in polyethylene

Author

Kon, H. ; Mizutani, T. ; Suzuoki, Y. ; Shigetsugu, H.

Author_Institution

Dept. of Electr. Eng., Nagoya Univ., Japan

fYear

1994

fDate

23-26 Oct 1994

Firstpage

268

Lastpage

273

Abstract

We have investigated space-charge behaviors in polyethylene by using the laser-induced-pressure-pulse technique and discussed the space-charge effects on high-field phenomena, such as conduction and breakdown. The effects of space charge on conduction current have been reported in many papers, but they are not well understood yet. One of them is a transient current peak in polyethylene. This was observed by many researchers and was explained by the transient SCLC (space charge limited current) theory. But there has been no direct evidence for it so far. In this study, we measured conduction currents and space-charge profiles in cross-linked polyethylene (XLPE), and discussed the relationship between conduction current and space-charge

Keywords

XLPE insulation; XLPE; breakdown; cross-linked polyethylene; high-field conduction; laser-induced-pressure-pulse; space charge limited current; transient current; Counting circuits; Current measurement; Electrodes; Laser ablation; Optical pulse generation; Optical pulses; Polyethylene; Power engineering and energy; Space charge; Space vector pulse width modulation;

fLanguage

English

Publisher

ieee

Conference_Titel

Electrical Insulation and Dielectric Phenomena, 1994., IEEE 1994 Annual Report., Conference on

Conference_Location

Arlington, TX

Print_ISBN

0-7803-1950-8

Type

conf

DOI

10.1109/CEIDP.1994.591753

Filename

591753