An arrangement and a method for switching high currents include at least one vacuum switching path and at least one rated-current contact switching path. The at least two switching paths are electrically connected in parallel. One current path for a rated current is routed over at least one rated-current contact of said rated-current contact switching path, and a parallel current path for a short-circuit current is routed over at least one contact of a vacuum tube of the vacuum switching path.

A system for actuating a vacuum bottle of an electrical device, the vacuum bottle being connected in a circuit shunting a main circuit of a phase of the electrical device and comprising a movable electrode and a fixed electrode. The actuating system comprises a shunt contact which is connected to a movable contact of the main circuit during a movement of opening the electrical device, and an electromagnet whose coil is connected between the movable electrode and the shunt contact, and whose core is mechanically linked with the movable electrode, such that the core drives the movable electrode to the open position only when the value of which passes through the coil reaches a predetermined threshold.

This electric switching device (2) comprises a first module (4), including a first support (42) on which a circuit breaker (44) is mounted, and at least one second module (6), including a second support (62) on which an electric component (64) is mounted that is able to be associated with the circuit breaker. In particular in order to facilitate the maintenance of this switching device, the latter includes guiding means (81 and 82) that are able to guide the first and second supports relative to one another between a disassembled configuration, in which at least one of the first and second modules is disengageable from the guiding means independently of the other, and an assembled configuration, in which the circuit breaker and the electric component are in a relative connection position and are able to be electrically connected to or disconnected from one another.

A switch assembly for high voltage applications, where the switch assembly includes a traditional mechanical switch and a triggered gap device electrically coupled in parallel. The mechanical switch includes a first switch contact and a second switch contact, where one or both of the first switch contact and the second switch contact are movable to engage and disengage the first and second switch contacts to allow or prevent current flow therethrough. The triggered gap device includes a vacuum enclosure, a first stationary contact positioned within the enclosure and a second stationary contact positioned within the enclosure, where a gap is defined between the first and second stationary contacts. The triggered gap device further includes a plasma control device that allows creation of a plasma in the gap that causes an arc between the stationary contacts on the order of micro-seconds that allows current flow between the contacts.

The invention refers to a disconnector pole (214) for a gas insulated switchgear and a disconnector unit comprising at least two of the aforementioned disconnector poles (214). Moreover, the invention refers to a gas insulated switchgear comprising at least one aforementioned disconnector pole (214) or at least one aforementioned disconnector unit and/or a circuit breaker. The disconnector pole (214) is movable between two contact positions. Moreover, the disconnector pole (214) comprises a metallic contact device (218, 220A, 220B, 221A, 221B, 222A, 222B) to be connected to contacts in the two contact positions. The metallic contact device (218, 220A, 220B, 221A, 221B, 222A, 222B) comprises an outer surface (256). The disconnector pole (214) also comprises at least one metallic housing (219), wherein at least 50% of the entire outer surface (256) of the metallic contact device (218, 220A, 220B, 221A, 221B, 222A, 222B) is arranged in the metallic housing (219).

The invention refers to a circuit breaker (300A) comprising a vacuum interrupter (301) for a gas insulated switchgear. Moreover, the invention refers to a gas insulated switchgear comprising at least one circuit breaker (300A) and/or a disconnector pole. The circuit breaker (300A) has a vacuum interrupter (301) comprising a first movable contact (302), a second stationary contact (303) and a first center axis (304). Moreover, the circuit breaker (300A) comprises a first insulator (305), a contact unit (306) arranged at the first insulator (305), wherein the first movable contact (302) can be moved towards the contact unit (306) so as to be connected to the contact unit (306), an electrical conducting unit (307) comprising a first side (308) and a second side (309), wherein the first side (308) and the second side (309) are opposite to each other, wherein the vacuum interrupter (301) is arranged at the first side (308) of the electrical conducting unit (307), and a second insulator (310) wherein the second insulator (310) is arranged at the second side (309) of the electrical conducting unit (307), wherein the second insulator (310) is connected to the second stationary contact (303), wherein the second insulator (310) has a second center axis (311), and wherein the second center axis (311) of the second insulator (310) is parallel to or collinear with the first center axis (304) of the vacuum interrupter (301).

A system for actuating a vacuum bottle of an electrical device, the vacuum bottle comprising a fixed electrode and a moving electrode that is mobile along a longitudinal axis between a closed position and an open position. The actuating system comprises an adjusting nut that is rotatably mobile about the longitudinal axis and driven by a drive device to perform an opening movement of the moving electrode, and an adjusting screw engaging with the adjusting nut in order to vary the moment when the drive device drives the moving electrode. The moving electrode is constrained to translate along the longitudinal axis with the adjusting screw, but is free to rotate relative to the adjusting screw, and the rotation of the adjusting screw is limited by blocking means.

A circuit breaker includes an interrupter configured to selectively prevent a flow of electrical current through the circuit breaker, and an assembly. The assembly includes a housing, an interrupter mechanism, and an arc protection mechanism. The housing includes an opening configured to channel an arc fault discharge generated during an arc fault into the housing. The interrupter mechanism is coupled to the housing and the interrupter, and is configured to move the interrupter between a first position and a second position, wherein the first position prevents a flow of electrical current through the circuit breaker and the second position permits a flow of electrical current through the circuit breaker. The arc protection mechanism is within the housing and is configured to receive the arc fault discharge through the housing and to cause the interrupter to move to the first position in response to the arc fault discharge.

The present disclosure provides a contact point monitoring device for a vacuum circuit breaker comprising: a fixed electrode which is fixed in an insulated container; a fixed contact point which is disposed at one end of the fixed electrode; a movable electrode which is installed in the insulated container and is movable in the upward or downward direction; a vacuum interrupter which is disposed at one end of the movable electrode and includes a movable contact point coming into contact with or separated from the fixed contact point; and a pushrod assembly which is coupled to the other end of the movable electrode and allows the movable electrode to move upwards or downwards.

A medium-voltage electric distribution cubicle for fitting between two parts of an electric circuit to cause current flow, current interruption, circuit disconnection, and grounding. This cubicle includes a vacuum break circuit breaker-disconnector or vacuum break switch-disconnector connected in series with a selector switch having at least two positions, namely, a current flow position and a grounding position.