Class 218/53 - With nozzle

Subclass of Class 218 - High-voltage switches with arc preventing or extinguishing devices
Definition: Subject matter including a terminal discharging pipe member
No. of patents: 31
Last issue date: 01/12/2010

Number	Title	Issue Date
7645957	Nozzle for a gas-insulated switching device and related switching device A nozzle for a medium or high voltage gas switching device of the type having at least a couple of separable arc contacts (1, 2), comprising a hollow shaped body (100) suitable to be positioned inside the device around the zone (20) where electr...	01/12/2010
7119652	Method of avoiding arc prolongation on current interruption, particulary a fuse A fuse assembly is disclosed. The fuse assembly includes an electrically insulating hollow casing of a substantially rectangular parallelepiped shape in outline, a fuse element provided within the casing and supported by the casing, the casing having first and secon...	10/10/2006
7022922	Power switch with a mobile contact element and extinction gas flow that move in an axial direction when activated The invention relates to a power switch (100) that comprises a contact element (105, 107) mobile in an axial direction and an extinction gas flow that moves in said axial direction when the switch is actuated. Said extinction gas flow is coaxially surr...	04/04/2006
6965089	Axial magnetic field vacuum fault interrupter An improved vacuum interrupter is disclosed. The vacuum interrupter includes a ring-shaped structure placed between a contact support structure and an electrical contact associated with the contact support structure. A resistivity of the ring-shaped structure is hig...	11/15/2005
6744001	High-voltage circuit-breaker including a valve for decompressing a thermal blast chamber A high-voltage circuit-breaker including a valve for decompressing a thermal blast chamber includes two contacts disposed in a breaking space which is delimited by a blast nozzle and contains a dielectric gas. It further includes a thermal blast chamber which commun...	06/01/2004
6740837	Contact zone for a power breaker A contact zone (1) of a quenching chamber which is arranged rotationally symmetrical about a central axis (2) and is filled with an insulating medium, having at least two stationary consumable contacts which are in the form of contact rings (4, 15	05/25/2004
6646850	High-voltage power breaker having an outlet flow channel A high-voltage power breaker includes two arcing contact pieces which are separated from one another when disconnected and between which an arc is struck in an arcing area. The arcing area is filled with a quenching gas, where the quenching gas has been h...	11/11/2003
6483064	Insulating blast nozzle for a circuit breaker An insulating blast nozzle for a circuit breaker, the circuit breaker having a first arcing contact and a second arcing contact that separate from each other when the circuit breaker is opened subsequent to prior separation of permanent contacts, said ins...	11/19/2002
6472629	Puffer switch having a two-volume break chamber An electric switch includes a first arcing contact surrounded by a puffer break chamber in which the gas is pressurized by the thermal effect, and a second arcing contact movable along an axial direction relative to the first arcing contact. The break cha...	10/29/2002
6462295	High-voltage power circuit breaker comprising an insulating nozzle In a high-voltage power breaker having two rated current contact pieces and two arc contact pieces as well as an insulating nozzle, a filling body is provided, which is mounted on this insulating nozzle, surrounds the insulating nozzle in an annular shape...	10/08/2002
6040970	Interrupter unit of a high-voltage power circuit breaker An interrupter unit of a high-voltage circuit breaker has two arcing contacts, between which an arc is formed in the event of switch-off. A nozzle made of insulating material is provided for blowing out the arc. The nozzle made of insulating material is s...	03/21/2000
5925863	Power breaker The power breaker is provided with a contact arrangement which is equipped with erosion-resistant contact members and has a stationary contact member (4), a contact member (4) which can move along a central axis (6) and an insulating nozzle (6) which conc...	07/20/1999
5902980	Insulating component for high-voltage equipment An insulating component for use in high-voltage switching equipment, especially gas-insulated switching gear. A nozzle made of an insulating material is used in a power switch. Portions of the surface of the nozzle subject to high dielectric stresses in u...	05/11/1999
5654532	Moving interrupter gap shield The movable nozzle of a puffer circuit interrupter has a coaxial cylindrical shield connected to its downstream end and the main movable contacts connected to its upstream end. The shield is electrically connected to the stationary contact terminal. The m...	08/05/1997
5453591	Sensing structure for component wear in high voltage circuit interrupters A vaporizable material, for example, a silicone, that is buried beneath the surface of a Teflon nozzle for a sulfur hexafluoride power circuit breaker in an area of the nozzle which is exposed to abrasion and wear due to arc products. In a similar manner,...	09/26/1995
4958052	ARC severing and displacement method and apparatus for fault current interruption Current interrupters for high voltage networks are disclosed which sever the post-zero arc plasma, connecting a pair of arc terminating electrodes, near an upstream wall electrode and displace the severed plasma with a high dielectric strength gas, gainin...	09/18/1990
4798924	Compressed-gas breaker The compressed-gas breaker exhibits two contact members (3; 11, 12, 13), of which one (11, 12, 13) is constructed as a nozzle, and an insulating nozzle (5) and a heating volume (8) for storing switching-arc-generated compressed gas. This breaker is intend...	01/17/1989
4791256	Insulated nozzle for use in an interrupter In an interrupter, an insulated nozzle is disposed in the vicinity between a pair of contact elements and is adapted to extinguish an arc occurring between the contact elements by blowing an insulating gas thereto. This insulated nozzle is formed from a f...	12/13/1988
4786770	Switchgear A switchgear comprises in a housing containing an arc extinguishing gas, a pair of separable contacts defining therebetween an arcing region in which an electric arc is generated when the contacts are separated. A cylindrical wall and an insulating nozzle...	11/22/1988
4748305	Gas-blast switch A gas-blast switch has a housing which encloses an arcing chamber, an accumulator space and an expansion space. Two relatively moveable contact members are arranged in the housing. One of the contact members moves through a nozzle. The nozzle is formed of...	05/31/1988
4684773	Gas-blast switch A gas-blast switch preferably suitable for the switching of medium voltage has two switch pieces interacting in an insulating gas filled housing. A fixed switch piece is provided with a hollow space which is connected via channels to a pressure reservoir ...	08/04/1987
4471185	Series multiple nozzles for gas blast circuit interrupter A flow nozzle for a circuit interrupter includes a plurality of at least two throat regions which permit at least two transitions from subsonic to supersonic flow in the main nozzle flow channel. Very high speed photographs made of the operation of arc in...	09/11/1984
4420662	Compressed-gas circuit breaker A compressed-gas circuit breaker possesses two contact members (1, 2), which move relative to one another, and a nozzle (7), which is made of dielectric material and is attached to a first (2) member of the two contact members. The constriction (8) of the...	12/13/1983
4418256	Electrically insulating plastic element for an electrical switching device, especially for use as the blast nozzle of a gas-blast switch A plastic mass of a blast nozzle contains a filler which is at least partially composed of powder of one or more metals. The proportion of metal powder amounts to at most 30 percent by weight, preferably 5 to 15 percent by weight. As the filler there is p...	11/29/1983
4414450	High voltage power switch A high voltage power switch for alternating current has a stationary, hollow contact, an axially displaceable contact, a nozzle through which compressed gas is directed into an expansion chamber, and a cylindrical coil. The coil is connected at one of its...	11/08/1983
4383152	Circuit breaker A circuit breaker is disclosed in which a compressed quenching medium, heated by an arc, is rapidly removed from a main duct in such a manner that the arc is effectively blown by axially opposing flows of quenching medium. The circuit breaker includes a n...	05/10/1983
4346273	Circuit-interrupter having a high-frequency transverse magnetic field to assist in arc interruption An improved circuit-interrupter is provided having a high-frequency transverse magnetic field to assist in the very rapid interruption of the arc, which is established during operation of the device, said magnetic field being preferably of the three-phase...	08/24/1982
4181837	Compressed-gas circuit interrupter having insulated contacts A compressed-gas circuit interrupter characterized by at least one pair of separable contacts, each contact being tubular and having a tubular insulating liner on the inner surface thereof, each liner being recessed from the open end of the contact to pro...	01/01/1980
4151391	Contact arrangement for a pressurized gas circuit breaker A contact arrangement for a pressurized-gas circuit braker, wherein the contact arrangement comprises a first tubular contact member and a second tubular contact member axially arranged therewith. The contact arrangement is further provided with a hollow ...	04/24/1979
4032737	Contact system for high-voltage power circuit breakers A contact system for power circuit breakers includes a nozzle body made of graphite which is pressed cold into a tube of cold-worked copper and is enclosed by the latter with a friction fit. A low-alloy copper is used as the material for the electrically ...	06/28/1977
3949182	Breaking chamber for self-blasting compressed gas electric circuit-breakers An axial blast breaking chamber for self-blasting compressed gas electric circuit breakers wherein the chamber wall is provided with sets of upstream and downstream radial holes having entrances to the inside of the breaker chamber through respective ring...	04/06/1976

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Class 218/53 - With nozzle