Space charge evolution in XLPE cable insulation under high electric fields

Author

Hozumi, Naohiro ; Takeda, Toshinao ; Suzuki, Hiroshi ; Okamoto, Tatsuki ; Watanabe, Kazuo ; Watanabe, Akitoshi ; Miyata, Hiroyuki

Author_Institution

Central Res. Inst. of Electr. Power Ind., Yokosuka, Japan

fYear

1995

fDate

17-20 Sep 1995

Firstpage

39

Lastpage

42

Abstract

The authors improved the conventional pulse electro-acoustic method to measure the space charge evolution in XLPE cable insulation with applying very high voltage. Using this technique, the space charge distribution was measured applying an electric field of over 1 MV/cm to 3-mm thick XLPE cable insulation. Under high fields, positive charge packets appeared intermittently in the vicinity of the anode and moved towards the cathode. This behavior is supposed to be affected by the change in temperature and material composition. This report deals with the results of space charge measurement at different temperatures, as well as with different material compositions

Keywords

XLPE insulation; power cable insulation; space charge; XLPE cable insulation; high electric fields; material composition; pulse electro-acoustic method; space charge; temperature dependence; Cable insulation; Charge measurement; Composite materials; Current measurement; Electric variables measurement; Pulse measurements; Pulsed electroacoustic methods; Space charge; Temperature measurement; Voltage;

fLanguage

English

Publisher

ieee

Conference_Titel

Electrical Insulating Materials, 1995. International Symposium on

Conference_Location

Tokyo

Print_ISBN

4-88686-047-8

Type

conf

DOI

10.1109/ISEIM.1995.496504

Filename

496504