Effect of high-frequency currents on interrupting performance of GCBs

Author

Kawano, H. ; Ishikawa, M. ; Toda, H. ; Yokota, T. ; Yamagata, Y.

Author_Institution

Toshiba Corp., Kawasaki, Japan

Volume

9

Issue

3

fYear

1994

fDate

7/1/1994 12:00:00 AM

Firstpage

1436

Lastpage

1443

Abstract

With electric power systems, it is shown by calculations that as the transmission voltage rises, high-frequency components contained in the fault current could remain until current interruption. This paper describes the influence of high-frequency current on the thermal and dielectric performance of a gas circuit breaker (GCB) by analyzing arc and hot gas flow. It has been proved that the model used for interruption tests simulating high-frequency components has sufficient performance for practical application

Keywords

arcs (electric); circuit-breaking arcs; dielectric properties of gases; fault currents; gas blast circuit breakers; power system protection; thermal analysis; 1000 kV; 1000 kV power system; UHV power system; arc flow; current interruption; dielectric performance; electric power systems; fault current; gas circuit breaker; high-frequency components; high-frequency current; high-frequency currents; hot gas flow; interrupting performance; interruption tests; thermal performance; transmission voltage rises; Circuit faults; Circuit testing; Dielectrics; Fault currents; Performance analysis; Power system analysis computing; Power system faults; Power system modeling; Power system transients; Voltage;

fLanguage

English

Journal_Title

Power Delivery, IEEE Transactions on

Publisher

ieee

ISSN

0885-8977

Type

jour

DOI

10.1109/61.311173

Filename

311173