Development of 800 kV gas-insulated switchgear

Author

Toda, H. ; Ozaki, Y. ; Miwa, I. ; Nishiwaki, S. ; Murayama, Y. ; Yanabu, S.

Author_Institution

Toshiba Corp. Kawasaki, Japan

Volume

7

Issue

1

fYear

1992

fDate

1/1/1992 12:00:00 AM

Firstpage

316

Lastpage

323

Abstract

An 800 kV gas-insulated switchgear, with a capacity level recognized as the largest in the world, was developed as the first development of UHV gas-insulated switchgear, and good results were obtained in the type tests for this switchgear. With the gas circuit breaker and the disconnector used in this gas-insulated switchgear, tests on a scale innovative from a global viewpoint were carried out. Taking recent research into account, test methods were renovated. The long-term reliability of all insulators was demonstrated by submitting them to long-term voltage and current tests. Finally, measuring surges due to the switching of a disconnector and a shunt reactor on the equipment installed at the site, it was verified that measured and calculated values agreed

Keywords

circuit breakers; gaseous insulation; reliability; switchgear; testing; 800 kV; UHV; disconnector; gas circuit breaker; gas-insulated switchgear; long-term current tests; long-term voltage tests; reliability; shunt reactor; surge measurement; Circuit breakers; Circuit testing; Cities and towns; Gas insulation; Geographic Information Systems; Manufacturing; Pollution measurement; Switchgear; Switching circuits; Voltage;

fLanguage

English

Journal_Title

Power Delivery, IEEE Transactions on

Publisher

ieee

ISSN

0885-8977

Type

jour

DOI

10.1109/61.108924

Filename

108924