A vacuum interrupter has a cover base formed with an insertion opening for an axially movable moving contact rod carrying a moving contact. The moving contact rod is routed out of the vacuum interrupter in a vacuum-tight manner by way of a bellows. The bellows has a centering appendage which is formed by a tubular end piece of the bellows that runs parallel to the longitudinal axis of the bellows and is inserted into the insertion opening. The bellows moreover has a bellows base which is disposed on the centering appendage, runs substantially transversely to the longitudinal axis of the bellows, and is formed with a through-opening for the moving contact rod.

A vacuum circuit breaker includes: a grounded tank; a vacuum valve including a vacuum container housing a movable contact and a stationary contact, a movable conductor that is connected to the movable contact and extends out of the vacuum container, and a tubular bellows; a tubular movable-side bushing conductor; a slider movably set inside the movable-side bushing conductor; a movable-side frame that communicates with a space inside a tube of the bellows and electrically connects the movable-side bushing conductor to the movable conductor; an operation rod having one end protruding to an outside of the grounded tank and an opposite end connected to the movable conductor; an operating device that moves the operation rod; a movable-side support plate covering an end of the grounded tank where the operation rod extends out of the grounded tank; and a packing set in a hole.

A circuit breaker comprises a vacuum chamber in which a fixed contact and a movable contact are located. A compensating reservoir comprising a counter-pressure element is provided for a good contacting.

An arrangement for a high-voltage circuit breaker includes at least one movable electric contact piece of an interrupting unit. The at least one movable contact piece is disposed on a switch rod and the switch rod is movably mounted between an outer region and an inner region of the housing of the interrupting unit. The switch rod is guided in a solely linear manner in the arrangement. A method for driving the at least one movable electric contact piece includes using the switch rod to move the contact piece. The switch rod is moved in a solely linear manner along the longitudinal axis of the switch rod.

The invention relates to a high-voltage switching device, comprising a vacuum interrupting chamber and a switchgear that comprises a high-voltage switching device. Furthermore, the invention relates to a method for producing a high-voltage switching device having a vacuum interrupting chamber. The high-voltage switching device comprises a housing body 1, in which a vacuum interrupting chamber 2 is provided. The vacuum interrupting chamber 2 comprises an immoveable switching contact element 4 and a switching contact element 5 that can move in the axial direction, the moveable switching contact element 5 extending out of the vacuum interrupting chamber 2 and being connected to an actuator 8, which can move in the axial direction, by means of an insulating body 7. The conductor parts 12, 13, 14 that form the current path are connected to the immoveable switching contact element 4 and the moveable switching contact element 5. In the high-voltage switching device according to the invention, a cavity 22 that is filled with an insulating liquid is made in the housing body 1, the moveable switching contact element 5 extending out of the vacuum interrupting chamber 2 and into the cavity 22, and the actuator 8 in turn extending out of the cavity 22 filled with insulating liquid. The high-voltage switching device is characterised in that a sealing arrangement 10 that seals the actuator 8 with respect to the housing body 1 is provided in the cavity 22 that is filled with insulating liquid. As a result, secure disconnection of the load current and the short-circuit current is achieved together with a relatively short insulation distance. Consequently, the high-voltage switching device can be compact.

A vacuum switch includes two mutually spaced apart bases and a vacuum interrupter disposed between the bases and connected to the bases. A first switching element is disposed in the vacuum interrupter. A second switching element is movable between a first switching position, in which the second switching element galvanically or electrically conductively contacts the first switching element, and a second switching position, in which the second switching element is separated from the first switching element. Each of a plurality of rod-shaped supporting elements has a first end section connected to the first base and a second end section connected to the second base. The bases and the support elements form a support cage which surrounds and supports the vacuum interrupter.

Disclosed herein is a method of reconditioning a vacuum interrupter that comprises determining whether the vacuum interrupter is suitable for reconditioning. Where the vacuum interrupter is suitable for reconditioning, the method comprises optionally reducing pressure inside vacuum interrupter using magnetron pumping, and/or forming at least one hole in an endcap of a vacuum envelope of the vacuum interrupter, cleaning components of the vacuum interrupter inside the vacuum envelope by introducing at least one cleaning solution into the interior of the vacuum envelope through the at least one hole in the endcap, removing the cleaning solution from the interior of the vacuum envelope, installing a plug in the at least one hole, wherein the plug has getter material on a surface thereof facing the interior of the vacuum envelope, and vacuum sealing the plug to the at least one hole such that a vacuum is re-established in the interior of the vacuum envelope.

A vacuum bottle that is intended for an electrical switching device includes a cylindrical body of insulating material closed at each end respectively by a first metal cover and a second metal cover, and a mobile electrode that passes through the first cover and that cooperates with a fixed electrode between a closed position in which the two electrodes are in contact with each other and an open position in which the two electrodes are separated. The bottle includes the second cover corresponding to the fixed electrode of the vacuum bottle.

A circuit breaker including a bellows member having a sufficient fatigue life is obtained. The circuit breaker includes a fixed electrode, a movable electrode, a container, a movable shaft, a bellows member, and a resin layer. The bellows member is disposed so as to surround a periphery of the movable shaft. The resin layer is connected to the plurality of uneven portions of the bellows member. The resin layer includes a first part, a second part, and a third part. The first part is connected to a first recess and has a first thickness. The second part is connected to a second recess and has a second thickness. The third part is connected to at least one of a plurality of intermediate recesses and has a third thickness. The third thickness is thinner than the first thickness and the second thickness.

A vacuum circuit breaker capable of efficiently dissipating heat generated in a vacuum valve includes a movable side contact and a fixed side contact which are arranged in the inside of the vacuum valve; a fixed side energization shaft to which the fixed side contact is fixed; a movable side energization shaft to which the movable side contact is fixed; an energization connection portion provided at a position where the movable side energization shaft protrudes from the vacuum valve; and a coupling body provided at the outside tip portion of the movable side energization shaft. The coupling body at the outside tip portion of the movable side energization shaft is coupled to an insulation operating rod.