Short interval measurement of transient space charge distribution and electrical breakdown in polymer film in high temperature region

Author

Fukuma, Masumi ; Nagao, Masayuki ; Kosaki, Masamitsu ; Fukunaga, Kaori ; Maeno, Takeshi

Author_Institution

Matsue Coll. of Technol., Japan

fYear

2001

fDate

2001

Firstpage

504

Lastpage

507

Abstract

Space charge dynamics in low-density polyethylene (LDPE) films were observed by the pulsed electroacoustic (PEA) method during breakdown test at various temperatures. In order to investigate the intrinsic electrical breakdown phenomena, the applied electric field was increased 3MV/cm in 150ms, and kept constant until breakdown, or 300ms at the longest. Space charge profiles were measured at 1ms intervals. A significant positive charge propagation into the sample was observed only immediately before the breakdown at 90°C. These measurements revealed that the positive charge behavior is related to the breakdown phenomena

Keywords

acoustoelectric effects; electric breakdown; polyethylene insulation; polymer films; space charge; transients; 150 ms; 300 ms; 90 degC; electrical breakdown; high temperature region; polymer film; short interval measurement; space charge dynamics; transient space charge distribution; Breakdown voltage; Charge measurement; Current measurement; Electric breakdown; Electric variables measurement; Electrodes; Space charge; Space technology; Temperature; Testing;

fLanguage

English

Publisher

ieee

Conference_Titel

Electrical Insulation and Dielectric Phenomena, 2001 Annual Report. Conference on

Conference_Location

Kitchener, Ont.

Print_ISBN

0-7803-7053-8

Type

conf

DOI

10.1109/CEIDP.2001.963591

Filename

963591