High-voltage cable plug

#The invention relates to a high-voltage cable connector for mounting on one end of a high-voltage cable, in particular of a power supply high-voltage cable having an operating voltage of more than 72.5 kV.

#Such high-voltage cable connectors are disclosed in DE 10 2004 054 639 A1, for example. The high-voltage cable connector has an insulating part. The insulating part is made, for example, from a soft-elastic silicone, is tapered at least in sections on its outer surface and can be brought into electrically tight contact with a socket element, formed, for example, by mold casting, in particular with a tapered section of the socket element, when establishing the plug-in connection.

#With regards to the application in high-voltage technology and associated power supply cables, such high-voltage cable connectors have external diameters of more than 10 cm or even more than 20 cm and a weight of several kilograms. Once the high-voltage cable connector has been mounted on the power supply cable, special attention has to be paid to the axial alignment of high-voltage cable connector and the socket element, for example, a device connection part, when connecting to the socket element and when subsequently disconnecting from the socket element, for example in the context of maintenance work. An offset of the axes or an inclination of the axes relative to one another must be avoided to reliably prevent any contact of the metallic end of the high-voltage cable connector facing the socket element with the socket element, in particular with the tapered section of the socket element, as any damage that occurs can reduce the operational reliability of the plug-in connection.

#Referring to the drawings that form a part of this disclosure:

#FIG. 1 is a side view in partial section of a high-voltage cable connector according to a first exemplary embodiment of the invention;

#FIG. 2 is a side view in partial section of a high-voltage cable connector according to a second exemplary embodiment of the invention, in which the contact element is slid further onto the clamping cone;

#FIG. 1 shows a side view of a not fully depicted high-voltage cable connector 1, which is partially, but not yet fully inserted into a socket element 2 depicted in cross-section. With regard to the high-voltage cable connector 1, in particular the flange bell, by which the high-voltage cable connector 1 can be detachably attached to the socket element 2, is not depicted. The socket element 2 has an electrically insulating socket element body 4 made, for example, from a casting resin, forming an inner cone 6 in sections. A metallic contact element 8 is cast into the socket element body 4, which contact element forms a hollow cylindrical receptacle for the insertion of the contact element 12 of the high-voltage cable connector 1. Both the high-voltage cable connector 1 and the socket element 2 are essentially symmetrical to the longitudinal axis 10 or to a symmetry plane passing through the longitudinal axis 10.

#The high-voltage cable connector 1 has an insulating part 14 that can be mounted on the end of the high-voltage cable 20. The insulating part 14 has an outer cone 16 in sections on its outer surface that can be brought into electrically tight contact with the inner cone 6 of the socket element 2 when the high-voltage cable connector 1 is fully inserted into the socket element 2. Embodiments in which the insulating part 14 of the high-voltage cable connector 1 forms an inner cone and the socket element 2 forms the corresponding outer cone are also possible.

#The high-voltage cable connector 1 has a contact element 12 which, in turn, has a contact carrier 18 and a contact device or contact 22. In the exemplary embodiment, the contact device is annular and has a plurality of punctiform or linear contact points in the circumferential direction for the contact on the contact element 8 of the socket element 2.