Solutions of essential problems of gas insulated systems for substations (GIS) and lines (GIL)

Author

Boeck, W.

Author_Institution

Inst. for High Voltage Eng. & Electr. Power Transmission, Tech. Univ. of Munich, Germany

Volume

1

fYear

2003

fDate

1-5 June 2003

Firstpage

1

Abstract

GIS and GIL are applied since several decades and proved to be very reliable and safe components of the power supply system. Extensive fundamental research was necessary for the development of the technology. Out of countless problems three are chosen to demonstrate the numerous phenomena, which had to be investigated. These are the flashover to ground during disconnector operation, the puncture of metal enclosures in case of severe internal arcs due to major faults and specific problems of N₂/SF₆ insulated systems for GIL. It is shown that such problems could often only be solved by means of simulation models, which are presented for complex discharge processes.

Keywords

SF₆ insulation; flashover; gas insulated substations; gas insulated transmission lines; nitrogen; N₂-SF₆; N₂/SF₆ insulated systems; complex discharge processes; disconnector operation; flashover; gas insulated lines; gas insulated substations; gas insulated systems; metal puncture; power supply system; simulation models; Dielectrics and electrical insulation; Gas insulated transmission lines; Gas insulation; Geographic Information Systems; Needles; Power supplies; Power system reliability; Space charge; Substations; Voltage;

fLanguage

English

Publisher

ieee

Conference_Titel

Properties and Applications of Dielectric Materials, 2003. Proceedings of the 7th International Conference on

ISSN

1081-7735

Print_ISBN

0-7803-7725-7

Type

conf

DOI

10.1109/ICPADM.2003.1218340

Filename

1218340