DC conduction current and voltage endurance of polypropylene film

Author

Sanden, B. ; Ildstad, E.

Author_Institution

Dept. of Electr. & Comput. Eng., Norwegian Inst. of Technol., Trondheim, Norway

Volume

1

fYear

1998

fDate

25-28 Oct 1998

Firstpage

304

Abstract

In this paper the effect of temperature and electrode material on the charging and discharging current and DC voltage endurance of a biaxially orientated polypropylene film have been investigated. The charging current was found to be dependent of electrode material, suggesting that the current was controlled by electrode processes. The charging current was found to strongly increase when increasing the temperature for 20 to 60°C. The level of the discharging current was low and for the higher applied stresses and temperatures the discharging current flowed in the direction of the charging current, thus indicating a build up of space charge in the film. DC voltage endurance tests revealed that there was no significant dependence of electrode material. Increasing the temperature from 20 to 60°C resulted in a significantly reduced endurance

Keywords

electrical conductivity; insulating thin films; organic insulating materials; polymer films; space charge; 20 to 60 C; DC conduction current; DC voltage endurance; biaxially orientated polypropylene film; charging current; discharging current; electrode material; polypropylene film; space charge; temperature dependence; voltage endurance; Breakdown voltage; Cable insulation; Conductive films; Electrodes; HVDC transmission; Ocean temperature; Plastic insulation; Polymer films; Space charge; Stress;

fLanguage

English

Publisher

ieee

Conference_Titel

Electrical Insulation and Dielectric Phenomena, 1998. Annual Report. Conference on

Conference_Location

Atlanta, GA

Print_ISBN

0-7803-5035-9

Type

conf

DOI

10.1109/CEIDP.1998.733986

Filename

733986