The present disclosure relates to a vacuum interrupter that is installed within a vacuum circuit breaker to break a circuit. The vacuum interrupter includes an insulated container, a seal cup, a fixing electrode, a diaphragm, and a movable electrode. The insulated container is formed in a cylindrical form. The seal cup is installed on an upper end of the insulated container. The fixing electrode includes a fixing shaft and a fixing contact member installed on the other end of the fixing shaft. The diaphragm is installed on a lower end of the insulated container. The movable electrode includes a movable shaft having one end fixed to the diaphragm and the other end disposed within the insulated container and formed to be linearly movable, and a movable contact member installed on the other end of the movable shaft to be selectively contacted to the fixing contact member.

A vacuum interrupter including a nominally cylindrical insulator having a first insulator portion and a second insulator portion defining a gap therebetween and a nominally cylindrical vapor shield having a first ring of a plurality of spaced apart bobbles and a second ring of a plurality of spaced apart bobbles. A gap ring including a series of spaced apart cut-out notches facing the vapor shield is positioned within the gap. The plurality of bobbles in the first and second ring of bobbles are configured so that the bobbles in the second ring pass through the cut-out notches in the gap ring and the bobbles in the first ring rest on the gap ring.

A vacuum interrupter for switching voltages, in particular high voltages, includes at least one envelope, at least one fixed contact, at least one movable contact, and control elements in particular having different lengths and/or widths disposed on the at least one vacuum interrupter. An assembly includes the vacuum interrupters electrically connected in series, in particular by control elements disposed on the at least two vacuum interrupters, and/or by control elements of one vacuum interrupter connected in series to control elements of another vacuum interrupter, in particular of all vacuum interrupters. A method for grading or controlling voltage distribution among vacuum interrupters uses control elements, in particular capacitors and/or resistors, disposed on the vacuum interrupters, in particular in a housing along with the vacuum interrupters and/or along with control elements of different vacuum interrupters that are connected in series.

The present disclosure relates to a vacuum interrupter that is installed within a vacuum circuit breaker to break a circuit. The vacuum interrupter includes an insulated container, a seal cup, a fixing electrode, a diaphragm, and a movable electrode. The insulated container is formed in a cylindrical form. The seal cup is installed on an upper end of the insulated container. The fixing electrode includes a fixing shaft and a fixing contact member installed on the other end of the fixing shaft. The diaphragm is installed on a lower end of the insulated container. The movable electrode includes a movable shaft having one end fixed to the diaphragm and the other end disposed within the insulated container and formed to be linearly movable, and a movable contact member installed on the other end of the movable shaft to be selectively contacted to the fixing contact member.

A vacuum interrupter for a vacuum circuit breaker is disclosed, in which a center shield is arranged between an upper insulating envelope and a lower insulating envelope, whereby the center shield is not provided inside each of the insulating envelopes and thus outer diameters of the respective insulating envelopes are reduced.

A vacuum circuit breaker includes: a vacuum valve accommodated in a tank having a cylindrical shape; a movable-side shield installed on a movable side of the vacuum valve; a movable-side main contact point having a tubular shape to cover the vacuum valve and the movable-side shield from radially outside; a contact point driver that moves the movable-side vacuum contact point and the movable-side main contact point in conjunction with each other; and an insulating rod that transmits a force to the contact point driver. The contact point driver includes: a low gas pressure section lever connected to a contact via a contact pressure applier that applies a contact pressure to the contact; a rotary seal shaft fixed to the low gas pressure section lever; and a high gas pressure section lever fixed to a portion of the rotary seal shaft exposed to the high gas pressure section.

A vacuum interrupter arrangement may be used in a tap changer. The vacuum interrupter arrangement has a vacuum interrupter; a metal shield configured to shield against external magnetic fields, the metal shield having a hollow cylindrical design and being arranged around at least a part of a cylindrical outer surface of the vacuum interrupter; and a holder, which is arranged on the outside of the metal shield and the vacuum interrupter, and which surrounds the metal shield and the vacuum interrupter at least partially coaxially. The holder has a plurality of holding elements which hold the metal shield in position relative to the vacuum interrupter.

An insulated switchgear module is disclosed. In one example, the module comprises a vacuum interrupter, current exchange assembly, and end conductors disposed within an insulated housing. The insulated housing further comprises a tank containing an actuator mechanism for actuating the current exchange assembly. An insulating tray within the housing separates the vacuum interrupter from the components in the tank. The insulated tray has a shape that corresponds with the shape of the vacuum interrupter and the shape of the housing.

An electrical device includes an internal electrical conductor that extends along a longitudinal axis. An insulator is overmolded around the internal electrical conductor such that the insulator includes first and second insulator portions with a parting plane at an interface between the first and second insulator portions. The parting plane is oriented such that it intersects the longitudinal axis. The electrical device may include a low electrical stress area defined by an electrical shield, wherein the parting line may be disposed entirely within the low electrical stress area. The electrical device may be a switchgear that includes a vacuum interrupter assembly having a vacuum bottle surrounded by an insulating sleeve comprising first and second sleeve portions with a parting plane at an interface between the first and second sleeve portions. The parting plane is oriented such that it intersects the longitudinal axis.

An arc shield with which a tubular body of a vacuum container is provided includes a tubular arc-shield body portion interposed between a fixed-side insulating portion and a movable-side insulating portion; a tubular arc shield fixed-side extension portion extending from the arc-shield body portion on the axially fixed side along the inner peripheral side of the fixed-side insulating portion; and a tubular arc shield movable-side extension portion extending from the arc-shield body portion on the axially movable side along the inner peripheral side of the movable-side insulating portion. Further, at least one of the arc shield fixed-side extension portion and the arc shield movable-side extension portion is shaped such that the portion becomes smaller in diameter in a stepped manner in the direction of extension thereof.