Compartment gas-insulated transmission lines (C-GIL) at 500 kV class

Author

Takuma, Tadasu ; Fujinami, Hideo ; Yashima, Masafumi ; Kawamoto, Tadashi ; Hara, Masanori

Author_Institution

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

Volume

4

Issue

1

fYear

1989

fDate

1/1/1989 12:00:00 AM

Firstpage

1

Lastpage

7

Abstract

A gas insulation structure called C-GIL, applicable to transmission lines or substation buses, is proposed. It consists of three conductors insulated by SF₆ or a gas mixture near atmospheric pressure in a rectangular compartment (2×2 m² for 500 kV class). Compared with conventional cocylindrical types used at higher gas pressures, it has advantages such as reduced effect of conductive particles, high current capacity, and ease of construction and repair. The main features of C-GIL, insulation design for 500 kV based on the field calculations, and breakdown characteristics in the presence of a wire are discussed

Keywords

cable insulation; electric breakdown of gases; gaseous insulation; power transmission lines; sulphur compounds; 500 kV; C-GIL; SF₆; breakdown characteristics; cable insulation; construction; current capacity; gas insulation; repair; substation buses; transmission lines; Cable insulation; Conductors; Electric breakdown; Gas insulated transmission lines; Gas insulation; Geographic Information Systems; Oil filled cables; Power transmission lines; Substations; Sulfur hexafluoride;

fLanguage

English

Journal_Title

Power Delivery, IEEE Transactions on

Publisher

ieee

ISSN

0885-8977

Type

jour

DOI

10.1109/61.19181

Filename

19181