An approach to the optimum insulation design of GCB interrupter

Author

Nishikawa, S. ; Osawa, N. ; Yoshioka, Y.

Author_Institution

Dept. of Electr. Eng., Kanazawa Inst. of Technol., Ishikawa, Japan

Volume

3

fYear

2002

fDate

2002

Firstpage

1640

Abstract

The optimum dielectric design of gas circuit breakers (GCB) in a consistent design philosophy is described. Many electric field calculations were carried out on 3 GCB models and the relation between the key design parameters such as distance between tank and shield, major radius of shield electrode and full open distance were analyzed. As a result, it was found that there is a minimum curve in the relation between full open distance and the electric field strength. Using this minimum curve and the allowable electric field strength, we can design the optimum GCB structure. It is also shown, as an example, how to design the optimum GCB of 300 kV by using 3 GCB models.

Keywords

electric fields; gas blast circuit breakers; gaseous insulation; interrupters; 300 kV; GCB interrupter; electric field calculations; full open distance; optimum insulation design; shield electrode major radius; tank to shield distance; Circuit breakers; Data analysis; Design engineering; Dielectrics and electrical insulation; Electrodes; Interrupters; Manufacturing; Shape; Student members; Voltage;

fLanguage

English

Publisher

ieee

Conference_Titel

Power System Technology, 2002. Proceedings. PowerCon 2002. International Conference on

Print_ISBN

0-7803-7459-2

Type

conf

DOI

10.1109/ICPST.2002.1067811

Filename

1067811