New insulating materials for HV DC cables

Author

Suzuki, T. ; Niwa, T. ; Yoshida, S. ; Takahashi, T. ; Hatada, Mitsuhiro

Author_Institution

Tokyo Electr. Power Co. Inc., Japan

fYear

1989

Firstpage

442

Lastpage

447

Abstract

New polymer insulating materials for HV DC cables were investigated. The DC breakdown characteristics and space charge characteristics of various types of polymers were evaluated using the sheet sample test. Model cable insulated with the most promising materials selected by the sheet sample test was then evaluated. The evaluation of the DC characteristics evaluation resulted in the selection of modified HDPE (high-density polyethylene) as the best HV DC cable insulation material. The outstanding DC breakdown characteristics of modified HDPE is tentatively attributed to the reduction of space charge due to the introduction of a modified group, in addition to the improvement in the intrinsic breakdown strength due to high crystallinity

Keywords

cable insulation; electric breakdown of solids; insulation testing; organic insulating materials; polymers; power cables; space charge; DC breakdown characteristics; HDPE; HV DC cables; crystallinity; high-density polyethylene; polymer insulating materials; space charge; Cable insulation; Cables; Crystalline materials; Electric breakdown; Materials testing; Plastic insulation; Polyethylene; Polymers; Sheet materials; Space charge;

fLanguage

English

Publisher

ieee

Conference_Titel

Conduction and Breakdown in Solid Dielectrics, 1989., Proceedings of the 3rd International Conference on

Conference_Location

Trondheim

Type

conf

DOI

10.1109/ICSD.1989.69237

Filename

69237