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High-voltage Switches With Arc Preventing Or Extinguishing Devices > Arc Preventing Or Extinguishing Devices > Vacuum

Vacuum

Vacuum patent applications listed include Date, Patent Application Number, Patent Title, Patent Abstract summary and are linked to the corresponding patent application page.

02/27/14 - 20140054270 - Arc detection with resistance to nuisance activation through light subtraction
In an electrical distribution system having an arc management system for removal of arcing voltage from feeder circuits triggered at least in part by light signals, a secondary optical detector monitors a downstream branch circuit breaker in the feeder circuit compartment to produce an optical signal for arc detection more...

01/30/14 - 20140027408 - Circuit breaker
A circuit breaker according to the present disclosure includes a cradle having an accommodation space therein, the cradle having a plurality of terminals and a breaker main body having a plurality of terminal connectors contactable with the terminals, respectively, and a plurality of vacuum interrupters connected to the terminal connectors,...

12/27/12 - 20120325778 - Electrode assembly for vacuum interrupter
An electrode assembly for a vacuum interrupter is configured such that supporting members can support most of a contact electrode plate and a supporting electrode plate in an axial direction with coil conductors interposed therebetween. Accordingly, an impact generated between electrode assemblies upon a closing operation of the vacuum interrupter...

10/18/12 - 20120261384 - Interrupter with voltage sensing on both load and source sides
An interrupter system for a switchgear. The interrupter system includes a source-side conductor, a load side conductor, and an interrupter. A source-side voltage detector is positioned proximate to the source-side conductor and a load-side voltage detector is positioned proximate to the load-side conductor. An insulating overmold encases both conductors, both...

09/27/12 - 20120241413 - Contact member including purposely introduced undulations and vacuum interrupter including the same
A contact is for a vacuum interrupter. The contact includes a contact member having a generally planar mating surface with a planar contact plane and a plurality of purposely introduced undulations therein. The undulations are structured to contact a plurality of purposely introduced undulations of another contact member. The undulations...

09/20/12 - 20120234795 - Method of manufacturing a current terminal for embedded pole part, and pole part itself
The present disclosure provides a method of manufacturing a current terminal for an embedded pole part, in which a vacuum interrupter is molded by an isolating coverage in a hot and pressure injection process, and such a pole part. At the position of the upper electric terminal at the fixed...

09/13/12 - 20120228265 - Vacuum valve
A fixed electrode 10 and a movable electrode have coil electrodes formed of plural coil portions installed at both contacts and on a rear surface side in a divided manner in a circumferential direction along peripheries of the contacts such that a longitudinal field is generated in a direction in...

08/09/12 - 20120199556 - Terminals for vacuum circuit breaker and vacuum circuit breaker having the same
Terminals for a vacuum circuit breaker include: a first terminal having a plurality of supporting rings, a plurality of finger contactors, and ring-shaped springs installed to contact an outer circumferential surface of the finger contactors so as to provide an elastic force to the finger contactors toward the center; a...

08/09/12 - 20120199557 - Flexible shunt for vacuum circuit breaker
A flexible shunt for a vacuum circuit breaker can have a reduced straight length and improved flexibility even with an increased thickness within a predetermined accommodation space of a main circuit part. The flexible shunt comprises a pair of conductive plates, each including a clamp connecting portion configured as a...

06/21/12 - 20120152904 - Encapsulated switchgear
An encapsulated switchgear that includes a housing defining, an insulating space, and an electrical active part arranged in the insulating space, the insulating space with an insulation medium. The switchgear is characterized in that the insulation medium with a dielectric compound having a boiling point of above −25° C....

05/31/12 - 20120132622 - Switch unit and switchgear equipped therewith
In order to improve cooling performance of a switch unit or switchgear equipped with the switch unit, the switch unit includes a switch having a movable electrode and a fixed electrode and is casted as one body with a resin, the resin is provided with resin fins, and the thickness...

03/15/12 - 20120061353 - Gas-insulated vacuum circuit breaker
Sealed chamber for monitoring pressure 23 is provided on sealed tank 37. Sealed tank 37 is filled with insulating gas. And, a connection using insulated pipe 19 is provided between medium-pressure space 18 that makes a medium pressure and sealed chamber for monitoring pressure 23. In sealed chamber for monitoring...

07/21/11 - 20110174779 - Switching installation with arc protection and arc protection method
A switching installation including a gas-filled enclosure having an input conductor, an actuator and an arc initiator. The actuator is arranged to actuate the arc initiator upon the occurrence of a first arc with a first length in the enclosure. The arc initiator creates, upon being actuated, a path for...

03/10/11 - 20110056916 - Vaccum switch chamber with a protective sleeve that is applied by heat shrinking
A resin-encapsulated pole piece is provided and includes a vacuum interrupter chamber having an outer surface. A protective sheath covers the outer surface of the vacuum interrupter chamber. The protective sheath is composed of a heat-shrinkable material. The protective sheath has been pulled over the vacuum interrupter chamber and then...

02/17/11 - 20110036811 - Switchgear and method for operating switchgear
A switchgear includes an earthing and disconnecting switch which linearly moves and is switchable to a disconnecting and an earthing positions, a vacuum valve which performs closing and breaking of a current in a vacuum container producing vacuum inside, and a solid insulator with which the earthing and disconnecting switch...

02/10/11 - 20110031220 - Vacuum based diverter switch for tap changer
A retrofit diverter switch which has a mechanical and electrical interface that is compatible with the existing designs is provided. The diverter switch may include a vacuum switch. The feature where the mechanical and electrical interface is compatible enables a retrofit from traditional On Load Tap Changers to a vacuum...

11/11/10 - 20100282713 - Heat dissipating means for circuit-breaker and circuit-breaker with such a heat dissipating means
The present invention discloses a circuit breaker comprising: a vacuum chamber; a fixed contact and a movable contact disposed in a vacuum chamber; a fixed contact stem supporting said fixed contact in said vacuum chamber and extending outwards from a first end of said vacuum chamber; a movable contact stem...

07/08/10 - 20100170874 - Vacuum insulated switchgear
A vacuum insulated switchgear comprising a vacuum container accommodating at least a pair of movable contacts and a pair of fixed contacts, wherein the movable contacts are capable of taking three positions, the switchgear being a double-break three-position type switch having breaking and disconnecting functions....

03/11/10 - 20100059479 - Power switch, especially high current switch
A power switch, especially a high-current switch, has at least one pole unit with a pole head and a pole base and a vacuum switching tube interposed therebetween. The vacuum switching tube has a stationary contact and a movable contact. The stationary contact is connected to a first conductor rail...

02/04/10 - 20100025375 - Vacuum circuit breaker
The invention relates to a vacuum switch, especially a vacuum circuit breaker, for medium and high voltages, comprising a mobile switch unit arranged inside a vacuum switch compartment (1) and provided with mutually mobile elements including a contact tappet (17), an insulator (18), and a driving or switching rod (11)...

02/04/10 - 20100025376 - Vacuum insulated switch-gear and its height adjusting method
The vacuum insulated switch-gear is configured to be capable of being lifted up with a jack-up bolt to adjust a seated height of the vacuum insulated switch-gear. The switch-gear comprises a nut fixed on a base plate forming a bottom of the vacuum insulated switch-gear. The nut is used as...

10/08/09 - 20090250436 - Large-capacity vacuum circuit breaker
To structure a large-capacity vacuum circuit breaker that can increase a current shutdown capacity and enables its rated current to be increased, at least two vacuum circuit breaker units 1A, 1B are placed side by side and connected in parallel. These at least two vacuum circuit breaker units 1A, 1B...

04/02/09 - 20090084761 - Multi-vacuum contactor control system
A control system for controlling and synchronizing a plurality of medium-voltage vacuum contactors comprises a two-level network structure. A dedicated network includes a plurality of servant control units operably coupled to the vacuum contactors and configured to ascertain a plurality of different data and conditions thereof. In addition, the dedicated...