High-voltage switches with arc preventing or extinguishing devices inventions 01/09

20090020506 - Electrical switching device: An electrical switching device has a first interrupter unit for interrupting and connecting an electrical line, in particular an air-insulated grounding switch. A method for switching an air-insulated grounding switch assures that no arc owing to a voltage flashover is produced on the air-insulated grounding switch. A second interrupter unit,... Agent: Lerner Greenberg Stemer LLP

20090020507 - Vacuum insulated switchgear: A vacuum insulated switchgear has a busbar compartment, in which phase-segregated double-break, three-position vacuum circuit breakers are disposed; and feeder compartments disposed at both sides of the busbar compartment respectively, in each of which phase-segregated double-break, three-position vacuum circuit breakers are disposed. The busbar compartment and the feeder compartments are... Agent: Mattingly, Stanger, Malur & Brundidge, P.c.

20090020508 - Contact drive arrangement: The disclosure relates to a contact drive arrangement for the movement of at least one contact in high-voltage switchgear systems having a contact drive and having an auxiliary switch, which has at least two auxiliary contacts. The contact drive works together with the at least one contact and with a... Agent: Buchanan, Ingersoll & Rooney Pc

20090014417 - Movable contactor for air circuit breaker with contact spring protecting mechanism: A movable contactor for an air circuit breaker with a contact spring protecting mechanism is provided, the movable contactor comprising a shielding plate configured to shield exposed surfaces of the contact springs for protection so as to prevent a deterioration or performance degradation in the contact springs due to arcs.... Agent: Greenblum & Bernstein, P.L.C

20090014418 - Electrical switching device with potential control: An electrical switching device with potential control has at least one interrupter unit. The interrupter unit has an electrical switching point and an electrical capacitance with respect to the electrical grounding. Conventionally, electrical switching devices, such as circuit breakers for high-voltage installations, for example, with so-called control capacitors, which are... Agent: Lerner Greenberg Stemer LLP

20090008367 - Switching chamber for a gas-insulated high-voltage switch: The switching chamber is intended for a gas-insulated high-voltage switch. It contains a housing filled with insulating gas and a contact arrangement held in the housing. The contact arrangement has, in a coaxial arrangement, the following components: two switching pieces, which are capable of being moved relative to one another... Agent: Buchanan, Ingersoll & Rooney PC