High-voltage switches with arc preventing or extinguishing devices inventions 03/08

20080073326 - Ablative circuit interruption device: An arc suppression insert (10) for a circuit breaker (e.g., includes an ablative body (12) defining a chamber (14) configured for receiving a pair of electrical contacts (16, 18) therein. The chamber is configured for accommodating movement of the electrical contacts from a closed state (20) to an open state... Agent: General Electric Company Global Research

20080073327 - Contactor assembly with arc steering system: A contactor assembly includes a stationary contact, an arc contact, an arc arrestor, and a magnetic intensifier. The magnetic intensifier is constructed to extend in generally close proximity to one of the stationary contact and the arc contact. During communication of power through the contactor assembly, the magnetic intensifier manipulates... Agent: Rockwell Automation, Inc./bf

20080067150 - Arc plate, and arc chute assembly and electrical switching apparatus employing the same: An arc plate for a circuit breaker arc chute assembly includes first and second portions coupled to opposing sidewalls of the arc chute assembly, first and second ends, and a throat portion between the first and second portions and including an aperture. The aperture extends from the first end toward... Agent: Martin J. Moran Eaton Electrical, Inc.

20080067151 - Vacuum interrupter chamber and contact arrangement for a vacuum circuit breaker: The invention relates to a contact arrangement for a vacuum interrupter chamber (1), which comprises a pair of inner contact pieces (11, 12), configured as RMF contact pieces, and a pair of outer contact pieces (21, 22) which are connected in parallel and are mounted closely adjacent to the inner... Agent: Paul R Katterle Abb Inc

20080067152 - Vacuum insulated switchgear: A vacuum insulated switchgear is provided with: an enclosure having a switch block defined by a grounded metal plate, a bus block positioned above the switch block, and a cable block positioned on the rear side of the bus block; a bus provided in the bus block and connected with... Agent: Stanger, Daniel Mattingly Stanger And Malur PC

20080067153 - Arc baffle, and arc chute assembly and electrical switching apparatus employing the same: An arc baffle for an arc chute assembly of a circuit breaker includes a first baffle member disposed at or about the second end of the arc chute assembly and including a plurality of first venting holes, a second baffle member including a plurality of second venting holes and being... Agent: Martin J. Moran Eaton Electrical, Inc.

20080061037 - Composite arc suppression device: An ablative arc suppression device (10) includes a first region (16) having a first electrical arc ablation characteristic and a second region (18) having a second electrical arc ablation characteristic. The first region and the second region are configured for defining an opening (22) extending through the first region and... Agent: General Electric Company Global Research

20080053960 - Arc-resistant switchgear enclosure: Arc-resistant box for a switching system (10) in which there are switching elements, such as a switch (11), a disconnector, and/or a plurality of contacts of the switching system. The arc-resistant box comprises a surrounding casing with a number of electrically conductive plate parts (19), and a protective layer (20)... Agent: Eckert Seamans Cherin & Mellott

20080053961 - Metal-clad electrical equipment including a particle trap: Metal-clad electrical equipment comprises a metal vessel (4) and an exhaust constituted by an arcing contact support tube (9) and a casing (16) surrounding the support tube (9) and co-operating therewith to define an annular volume (20). At one end, the support tube has an inlet for passing arc gas.... Agent: Thelen Reid Brown Raysman & Steiner LLP