Computer simulation of phenomena associated with hot gas in puffer-type gas circuit breaker

Author

Okamoto, M. ; Ishikawa, M. ; Suzuki, K. ; Ikeda, H.

Author_Institution

Toshiba Corp., Kawasaki, Japan

Volume

6

Issue

2

fYear

1991

fDate

4/1/1991 12:00:00 AM

Firstpage

833

Lastpage

839

Abstract

To analyze hot-gas flow in puffer-type gas circuit breakers (GCBs), a program was developed by adding functions for dealing with opening process, gas compression, and arcing to a program for the analysis of axially symmetric compressive fluids. The accuracy of the program is demonstrated by comparing the results of computation by this program with the results of two different tests: the observation of hot-gas backflows using the Schlieren method and the measurement of breakdown voltage drops resulting from hot gas generated by current interruptions. The results of both tests show trends similar to calculated results obtained by simulating the tests, proving that this program is applicable to interruption phenomena associated with hot gas to a certain extent. The program is applied to the calculation of pressure rise phenomena in a puffer chamber caused by hot-gas backflows and dielectric strength to ground in a tank-type GCB. The program is expected to be useful as a means of estimating test results

Keywords

digital simulation; gas blast circuit breakers; power engineering computing; Schlieren method; arcing; axially symmetric compressive fluids; breakdown voltage drop measurement; digital simulation; gas compression; hot-gas backflows; hot-gas flow; opening process; puffer-type gas circuit breaker; Circuit breakers; Circuit testing; Computer simulation; Dielectric breakdown; Engine cylinders; Gas insulation; Pistons; Senior members; Sulfur hexafluoride; Switchgear;

fLanguage

English

Journal_Title

Power Delivery, IEEE Transactions on

Publisher

ieee

ISSN

0885-8977

Type

jour

DOI

10.1109/61.131142

Filename

131142