Investigation into the space charge distribution near the interface between metallic electrode and dielectric liquid

Author

Peng, Zangren ; Xie, Hengkun ; Yang, Shuanke ; Wang, Guangwu

Author_Institution

State Key Lab. of Electr. Insulation for Power Equipments, Xi´´an Jiaotong Univ., China

fYear

1995

fDate

17-20 Sep 1995

Firstpage

415

Lastpage

418

Abstract

The space charge and electric field distribution in dielectric liquids between electrodes are measured by using a Kerr electro-optic system. After DC field application for 1 h to nitrobenzene with Al electrodes, the electric field near the interface is enhanced by a factor of 3. In order to improve the electric field distribution near the interface, the electrode surfaces are coated with silicon varnish to form an electrode/solid insulator interface. The electric field and space charge distribution are greatly improved by using the insulation coating

Keywords

Kerr electro-optical effect; aluminium; dielectric liquids; electric breakdown; electric fields; insulating coatings; metal-insulator boundaries; organic compounds; organic insulating materials; space charge; varnish; 1 hour; Al; Al electrodes; DC field application; Kerr electro-optic system; dielectric liquid electrode interface; electric field distribution; electrode surface coating; electrode/solid insulator interface; insulation coating; metallic electrode; nitrobenzene; silicon varnish; space charge distribution; Charge measurement; Current measurement; Dielectric liquids; Dielectric measurements; Dielectrics and electrical insulation; Electric variables measurement; Electrodes; Silicon; Solids; Space charge;

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.1995.496597

Filename

496597