High-voltage switches with arc preventing or extinguishing devices inventions 01/08

20080023445 - Switching contfact for vacuum interrupters: A switching contact is disclosed for vacuum interrupters, having a radial or axial magnetic field. In at least one embodiment, the switching contact includes a switching contact carrier and a contact plate. The switching contact carrier contains a coil for generating a magnetic field, said coil being formed by slitting... Agent: Harness, Dickey & Pierce, P.L.C

20080011719 - Heavy-duty circuit-breaker with sealing against hot gas: The heavy-duty circuit-breaker with arc blowing has an element which is sensitive to hot gas and/or to gas pressure and is protected by means of a seal against a hot-gas flow. The seal is advantageously a movable non-contacting seal. The seal can have a flow-element production means for production of... Agent: Buchanan, Ingersoll & Rooney PC

20080006607 - Electrical circuit breaker: A circuit breaker for multi-phase power includes an opening-closing apparatus configured to open and close each phase of the multiphase power, a detection unit configured to detect a fault current in at least one phase of an electrical installation, a plurality of connecting bars disposed on a load side of... Agent: Darby & Darby P.C.

20080006608 - Heavy-duty circuit breaker with erosion-resistant short-circuit current routing: The heavy-duty circuit-breaker having an axis (A) which defines an axial coordinate (z) parallel to the axis and a radial coordinate (r) at right angles to the axis, and having an arcing contact piece, a current-carrying element and an erosion protection element, with the arcing contact piece having an opening... Agent: Buchanan, Ingersoll & Rooney PC

20080006609 - Generator circuit breaker with improved switching capacity: The disclosure relates to an electrical switching device, e.g., a generator circuit breaker, and to a method for improved switching-gas cooling. Gas jets are formed by a nozzle body in the exhaust area, are directed against a baffle wall and are swirled. The baffle wall is a component of the... Agent: Buchanan, Ingersoll & Rooney PC