Arc-discharge mode and interruption performance in vacuum switch tubes

Author

Toya, H. ; Hayashi, T. ; Okumura, M. ; Yorita, M. ; Ueno, H.

Author_Institution

Mitsubishi Electr. Corp., Amagasaki, Japan

Volume

7

Issue

1

fYear

1992

fDate

1/1/1992 12:00:00 AM

Firstpage

324

Lastpage

331

Abstract

Arc phenomena in vacuum switch tubes involving the transition mechanism of the arc-discharge mode, and the relations among the arc-discharge mode, the electrode material, the electrode configuration, and the interruption performance are investigated. It is suggested that the positive ion accumulation near the anode causes the anode-spot mode transition. The floating shield potential and the arc voltage are related to the interrupting ability for the arcs between unslotted flat electrodes and between spiral electrodes, respectively. Through these fundamental research activities, a new line of compact vacuum switch tubes and new types of vacuum circuit breakers carrying them have been developed

Keywords

arcs (electric); circuit breakers; switching; vacuum apparatus; anode-spot mode transition; arc voltage; arc-discharge mode; electrode configuration; electrode material; floating shield potential; interruption performance; positive ion accumulation; spiral electrodes; unslotted flat electrodes; vacuum circuit breakers; vacuum switch tubes; Anodes; Cathodes; Circuit breakers; Electrodes; Electron tubes; Spirals; Switches; Switching circuits; Vacuum arcs; Voltage;

fLanguage

English

Journal_Title

Power Delivery, IEEE Transactions on

Publisher

ieee

ISSN

0885-8977

Type

jour

DOI

10.1109/61.108925

Filename

108925