High-voltage switches with arc preventing or extinguishing devic – Arc preventing or extinguishing devices – Magnetic blowout
Reexamination Certificate
2007-07-24
2007-07-24
Enad, Elvin (Department: 2832)
High-voltage switches with arc preventing or extinguishing devic
Arc preventing or extinguishing devices
Magnetic blowout
C218S149000
Reexamination Certificate
active
11350046
ABSTRACT:
The invention proposes an electrical service device, in particular line circuit breaker or motor circuit breaker, having a housing having connecting areas and connection means (2, 3) for the purpose of connecting busbars and/or connection lines on both end sides and, having at least one switching contact having a fixed and a movable contact piece (4, 6), an arc (13) being produced in an arc prechamber area (7) between said fixed and movable contact pieces (4, 6) in the event of a disconnection. The arc enters a current-limiting arc-quenching device (12), in particular an arc splitter stack, via arc guide rails (14, 16), at least one insulating plate (20, 25+26) being arranged at the edge of the arc-quenching device (12). The insulating plate (20, 25+26) is fixed to the end section of an arc guide rail (14) by means of a fixing clip (22).
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patent: 102 42 310 (2003-07-01), None
Dorfeld Wolfgang
Rab Alexander
Weber Ralf
ABB Patent GmbH
Buchanan & Ingersoll & Rooney PC
Enad Elvin
Fishman M.
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