High-voltage switches with arc preventing or extinguishing devices inventions 06/08

20080142485 - Method for producing breaker pole parts for low-voltage, medium-voltage and high-voltage switchgear assemblies, and breaker pole part itself: The disclosure relates to a method for producing circuit-breaker parts and plastic components for low, medium and high-voltage switching stations and to a corresponding circuit-breaker part. To obtain a simpler method of production with a higher variance of material characteristics, the outer insulation sleeve is produced in a plastic injection... Agent: Buchanan, Ingersoll & Rooney Pc

20080142486 - Circuit breaker with adjustable arc-flash protection and wireless sensor and method of use: A circuit breaker includes a microprocessor and a wireless sensor in communication with the microprocessor, the wireless sensor being configured to detect the presence of a person within a predetermined area around the circuit breaker such that a level of protection of the circuit breaker is changed by the microprocessor... Agent: General Electric Co. Global Patent Operation

20080135522 - High-voltage switch with a metal container filled with insulating gas: A high-voltage switch has a metal container filled with insulating gas, and a quenching chamber installed in the container. The quenching chamber contains a housing which is aligned along an axis, an arcing contact arrangement which is held in the housing, an exhaust volume which is bounded by the housing,... Agent: Buchanan, Ingersoll & Rooney Pc

20080135523 - Self-blast circuit breaker with control body: In a self-blast circuit breaker, the inner contact is equipped with a control body which extends into or against the outer contact, respectively. The control body forces the arc into an arcing zone in the form of a hollow cylinder. This achieves a more rapid pressure build up as a... Agent: Buchanan, Ingersoll & Rooney Pc

20080135524 - Arc splitter for an arcing chamber: The invention relates to a coated arc splitter made of a ferromagnetic material for use in an arcing chamber. The invention provides that the arc splitter has a layer made of a composite material consisting of at least two constituents of which the first constituent is electrically conductive, has a... Agent: Keith H Orum Orum & Roth

20080135525 - Electrical switching device: The invention relates to electrical switches, in particular line-protection circuit breakers or motor protection circuit breakers, with at least one contact point at which an arc occurs during a switching operation. Having a stack of arc-extinguishing plates made up of several extinguishing plates, the extinguishing plates of said stack being... Agent: Buchanan, Ingersoll & Rooney Pc

20080135526 - Circuit breaker with a gear having a dead point: An electrical circuit breaker has a first contact piece which can be moved in a first movement range along a switching axis and has an arcing contact, a second contact piece which can move along the switching axis and which has a further arcing contact, a drive for moving the... Agent: Buchanan, Ingersoll & Rooney Pc