Invention Grant
- Patent Title: High-voltage circuit breaker with improved circuit breaker rating
- Patent Title (中): 具有改善断路器额定值的高压断路器
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Application No.: US11520619Application Date: 2006-09-14
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Publication No.: US08389886B2Publication Date: 2013-03-05
- Inventor: Andreas Dahlquist , Christian Franck , Martin Kriegel , Martin Seeger , Henrik Nordborg
- Applicant: Andreas Dahlquist , Christian Franck , Martin Kriegel , Martin Seeger , Henrik Nordborg
- Applicant Address: CH Zurich
- Assignee: ABB Technology AG
- Current Assignee: ABB Technology AG
- Current Assignee Address: CH Zurich
- Agency: Buchanan Ingersoll & Rooney PC
- Priority: EP05405556 20050926
- Main IPC: H01H33/91
- IPC: H01H33/91

Abstract:
An electrical breaker device, in particular a high-voltage circuit breaker, and a method for improved quenching gas cooling are disclosed. Cold gas is stored intermediately in the exhaust region, and a first partial gas flow is guided to bypass the intermediately stored cold gas and to flow off into the breaker chamber, the intermediately stored cold gas being forcibly displaced out of the exhaust region with the aid of a second partial gas flow and being mixed with the first partial gas flow before flowing off into the breaker chamber housing. Exemplary embodiments relate, inter alia, to the design of the intermediate storage volume for the cold gas and to auxiliary means for precooling the hot quenching gas. Advantages are, inter alia, improved quenching gas cooling, an increased circuit breaker rating and/or a more compact breaker design.
Public/Granted literature
- US20070068904A1 High-voltage circuit breaker with improved circuit breaker rating Public/Granted day:2007-03-29
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