Class 218/2 - Multiple break

Subclass of Class 218 - High-voltage switches with arc preventing or extinguishing devices
Definition: Subject matter wherein the means for preventing or extinguishing
No. of patents: 37
Last issue date: 09/07/2010

Number	Title	Issue Date
7790997	Switch unit having a circuit breaker and a disconnector with common drive means A switch unit comprising a circuit breaker and a disconnector disposed in one plane and fixed to a metal casing. Common drive means comprise: a single insulating drive bar adapted to move in a straight line in the same plane...	09/07/2010
7750264	High voltage switch configuration A high-voltage switch configuration having a subdivision housing, which is supported on a frame by an insulating supporting housing, and having a switch which is fitted to this subdivision housing and has an insulator, a switching chamber surrounded by the insulator...	07/06/2010
7718913	Actuation by cylindrical CAM of a circuit-breaker for an alternator An alternator disconnector circuit-breaker of the invention includes a cylindrical cam (40) for optimizing the sequence for opening/closing the switch-over first switch (10), the circuit-breaker second switch (20), and the disconnector third swi...	05/18/2010
7705262	Alternator disconnector circuit-breaker by a servomotor A first switch (10) has a first pair of contacts (12, 14) that are mounted to move relative to each other in translation. A circuit-breaker second switch (20) has a second pair of contacts (21, 24) that are mounted to move relative to eac...	04/27/2010
7679019	Electrical switching system An electrical switching system, preferably a medium-voltage switching system, has a power switch or load switch, a disconnecting switch, and a grounding switch configured as a vacuum switching chamber. Low separation distance lengths and a more compact construction ...	03/16/2010
7550691	Adjustable switching mechanism for series coupled vaccum interrupters An adjustable switching mechanism for adjusting the tolerance of electrical contacts of series coupled vacuum interrupters includes a primary drawbar coupled to a secondary drawbar via a pair of coupling pull rods. The primary and secondary drawbars are adjustably a...	06/23/2009
7250583	Gas-insulated switchgear device A gas-insulated switchgear device comprising a first casing housing: at least a first terminal for input/output connection; a disconnector unit comprising at least a first fixed contact operatively coupled to said first terminal and a corresponding first movable con...	07/31/2007
7122758	Insulated earthing switch for gas-insulated switchgear assemblies An insulated earthing switch for encapsulated, gas-insulated high-voltage switchgear assemblies is characterized in that an encapsulation-side earthing switch contact, a measuring electrode and an earthing switch housing are arranged altogether on a single earthing ...	10/17/2006
7122759	Compact earthing switch for gas-insulated switchgear assemblies A compact earthing switch (1′) is provided by a mounting lid (10) of the gas-insulated switchgear assembly (15) having a concave physical volume (100) which extends the gas chamber (9) and by the earthing switch fixed contact (	10/17/2006
7055273	Removable label and incentive item to facilitate collecting consumer data A label and incentive item for collecting data in connection with consumer surveys is provided having a pre-approved incentive card with a base layer for attaching to a product package or release paper. The pre-approved incentive card has indicia printed on its oute...	06/06/2006
7053326	Integrated type gas-insulated switching apparatus In an integrated type gas-insulated switching apparatus, a plurality of switching devices are provided. Each of switching devices includes a contact and an insulated container in which the contact is contained. The contact comprises electrodes adapted to be contacte...	05/30/2006
6946613	Gas-insulated switchgear A gas-insulated switchgear includes a tank filled with an electrically insulating gas, first and second conductors disposed within the tank, a disconnector for disconnecting the first conductor and the second conductor from each other, and a grounding switch for gro...	09/20/2005
6927355	Circuit breaker The invention relates to a circuit breaker, preferably for high or medium voltage. The movable conact of each breaker pole is connected, via mechanical means for transmitting movement, to a movable part of an electric motor (6). The movable contact and the me...	08/09/2005
6912776	Pierce nut installation apparatus A pierce nut installation apparatus having a feed passage, a plunger passage and a plunger which reciprocates through the plunger passage to engage and install a pierce nut in a panel opposite the plunger passage, wherein the end of the plunger passage includes a nu...	07/05/2005
6838631	Power use circuit breaker and electrical circuit arrangement for electric power generation plant A power use circuit breaker includes an arc generating switching unit which adds an electrical resistance in a circuit during current interruption to attenuate a current to be interrupted, a vacuum bulb which is electrically connected in series with the arc generati...	01/04/2005
6759616	Gas insulated switchgear A gas insulated switchgear capable of performing maintenance and inspection of a breaker without shutting down a bus line includes a first case containing a breaker and having a bushing for leading a load and a second case containing a plurality of disconnectors and...	07/06/2004
6743999	Integrated type gas-insulated switching apparatus In an integrated type gas-insulated switching apparatus, a plurality of switching devices are provided. Each of switching devices includes a contact and an insulated container in which the contact is contained. The contact comprises electrodes adapted to be contacte...	06/01/2004
6683267	Gas-insulated switchgear device A gas-insulated switchgear device for high- and medium-voltage applications, comprising an enclosure which contains a disconnection unit which is electrically connected to a first electric terminal and is arranged in the enclosure in a substantially centr...	01/27/2004
6680453	Gas insulated switchgear A gas insulated switchgear capable of performing maintenance and inspection of a breaker without shutting down a bus line includes a first case containing a breaker and having a bushing for leading a load and a second case containing a plurality of discon...	01/20/2004
6573469	Gas-insulated switchgear device A gas-insulated switchgear device. A casing is provided with a first connection terminal and a second connection terminal, an interruption unit, and a disconnection unit. The disconnection unit includes a first fixed contact connected to the second connec...	06/03/2003
6023035	Electric circuit breaker with means for adjusting the contacts Electric circuit breaker with means for adjusting the contacts comprising, for each electric phase, moving levers having main contacts and arc-breaking contacts co-operating with main contacts and arc-breaking contacts provided on a terminal bar there bei...	02/08/2000
5872346	Metal-cladded electrical high-voltage switching installation with a power switch A high-voltage metal-cladded switchgear having two busbars (1, 2) and a power switch (4) with a first connected to terminals (12, 13) of two isolating switches (10, 11). The power switch has a contact point (17) that can be removed from the enclosure (3) ...	02/16/1999
5696364	Combined interrupter disconnect switch blade for high voltage switch A high voltage open-air switch has a movable disconnect switch blade which contains a circuit interrupter therein having interrupter contacts in series with the open air disconnect switch contacts. The circuit interrupter has a lower BIL rating than the s...	12/09/1997
5457294	UHV breaker provided with resistances A resistance-provided UHV breaker includes a tank, a main contact unit, a resistance unit, and a resistance contact unit. The main contact unit includes plural main contacts arranged in the axial direction of the tank. The resistance unit includes plural ...	10/10/1995
5451731	Circuit breaker and driving mechanism thereof In a double-break type circuit breaker having resistor contacts which are to be connected in parallel with main contacts in not only closing operation but also breaking operation, the resistor contacts are opened by a force due to loading of elastic membe...	09/19/1995
5449868	Vacuum bottle contactor tip pressure adjuster The invention discloses a vacuum contactor assembly for controlling current flow in a single or multi-phase electrical circuit wherein each phase of the electrical circuit is controlled by a single vacuum interrupter. The stem pressure or pressure exerted...	09/12/1995
5448030	Gas insulated circuit breaker A gas insulated circuit breaker includes a closed tank filled with an insulation gas, one pair of separable contacts disposed in the closed tank, a supporting frame supporting the closed tank, an opening spring for performing an opening operation of the p...	09/05/1995
5350892	Medium tension circuit-breaker for indoor or outdoor use A multipole circuit-breaker for each pole has an insulating feedthrough including a cylindrical first portion containing a vacuum bottle. The vacuum bottle comprises an insulating case closed by first and second endplates. The first metal endplate carries...	09/27/1994
5321221	Self-disconnecting circuit-breaker for medium tension, and use thereof in a medium-tension station or bay A multipolar isolating circuit-breaker comprising, for each pole, an insulating feedthrough containing a vacuum bottle, the feedthrough including a first contact at a first end connected to a first terminal of the bottle and designed to co-operate with a ...	06/14/1994
4742423	Gas insulated apparatus A gas insulated apparatus for high voltage, 3-phase applications in which an insulating, self-arc-extinguishing gas separates the high voltage lines from grounded vessels. According to the invention, the transverse impedance of the vessels is chosen so th...	05/03/1988
4484086	Switching network A switchgear installation has at least four junctions connected in the form of an annulus. These junctions are connected with each other by means of interruptable current branches. Each junction of a first group of junctions containing at least two elemen...	11/20/1984
4379957	Modular "Y"-type enclosure elements for gas insulated substations A modular "Y"-type enclosure element particularly adapted for gas insulated substations. The enclosure element comprises a first generally "Y"-shaped enclosure element having a circuit protective device, such as a circuit breaker or conductor, disposed th...	04/12/1983
4263490	Device for switching in closing resistors for high-voltage cut-out switches A reciprocating rod bears a bridge which is movable on the rod with initial movement of the rod in a given direction completing closure of bridge carried moving contacts onto stationary contacts for inserting a resistance in a circuit during closure. Link...	04/21/1981
4241248	Circuit interrupting device A circuit interrupting device has a stationary contact. A movable contact is carried by a movable double-walled conductive tube which is telescoped and electrically continuous with a stationary tube. The tubes carry all of the current through the device. ...	12/23/1980
4159404	Multi-pole high-voltage circuit-interrupter having independent pole tripping with a single common operating mechanism A multi-pole high-power circuit-interrupter is provided having a common operating mechanism, and having independent pole operation by associating with each of the several pole-units its own independent collapsible latching means, which may be very quickly...	06/26/1979
4103128	Tank-type compressed-gas circuit-breaker having capacitance-supporting means A tank-type compressed-gas circuit-interrupter is provided utilizing line-to-ground capacitance means disposed within a grounded metallic tank structure controlling the rate of rise of the recovery voltage and serving an additional function of assisting t...	07/25/1978
3935407	Multiphase vacuum switch assembly having cam operated spring charging drive mechanism with lost motion connection A multiphase under load transfer switch of the Jansen-type for tapped regulating transformers. The main contacts and the switch-over contacts of the transfer switch are formed by vacuum switches. The vacuum switches are operated by a common drive mechanis...	01/27/1976

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Class 218/2 - Multiple break