Double breaks in vacuum: Technical benefit and flashover mechanism
Conference
·
OSTI ID:524640
- Technical Univ. of Braunschweig (Germany). Inst. of High Voltage Engineering
The success of vacuum medium voltage switchgears bases on the high performance of vacuum interrupters for clearances up to 15 mm. Due to the vacuum specific flashover processes a degressive rise of the breakdown voltage with enlarging gap space is observed. This effect prevents nowadays an economic inset of vacuum technology in high-voltage applications above 53 kV. The authors investigate the breakdown voltage of double break arrangements because of the high performance of small vacuum gaps. A possible high voltage interrupter could consist of a static mid-electrode and two movable contact elements. Their aim is to show whether double (or multiple) breaks are able to increase the electric strength in vacuum.
- Sponsoring Organization:
- Deutsche Forschungsgemeinschaft, Bonn (Germany)
- OSTI ID:
- 524640
- Report Number(s):
- CONF-960614--; ISBN 0-7803-3531-7
- Country of Publication:
- United States
- Language:
- English
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