High-Voltage Switching Device and Switchgear Comprising a High-Voltage Switching Device and Method for Producing a High-Voltage Switching Device

摘要

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.