A high-voltage bushing includes an insulating body disposed concentrically around a cylindrical winding support formed of electrically conductive material, and a sealing device for sealing a gap between the winding support and the insulating body. The sealing device includes a sealing element disposed in a circumferential sealing groove. The circumferential sealing groove is disposed in the winding support and accommodates the sealing element. A method for producing a high-voltage bushing includes placing an insulating body concentrically around a cylindrical winding support formed of electrically conductive material. The insulating body has mutually concentrically disposed insulating layers. A sealing element is introduced into a circumferential sealing groove in the winding support, and the insulating body is subsequently impregnated with a resin to seal a gap between the winding support and the insulating body.

A high-voltage bushing includes an insulating body disposed concentrically around a cylindrical winding support formed of electrically conductive material, and a sealing device for sealing a gap between the winding support and the insulating body. The sealing device includes a sealing element disposed in a circumferential sealing groove. The circumferential sealing groove is disposed in the winding support and accommodates the sealing element. A method for producing a high-voltage bushing includes placing an insulating body concentrically around a cylindrical winding support formed of electrically conductive material. The insulating body has mutually concentrically disposed insulating layers. A sealing element is introduced into a circumferential sealing groove in the winding support, and the insulating body is subsequently impregnated with a resin to seal a gap between the winding support and the insulating body.

The present disclosure relates to a bushing including an electrical conductor comprising a terminal at a first end of the bushing. The bushing also includes an electrically insulating condenser core arranged around the conductor and defining a central longitudinal through-hole through which the conductor extends. The bushing also includes a plurality of concentric field-grading layers arranged in the condenser core, comprising an inner field-grading layer and an outer field-grading layer. The bushing also includes an electrically conductive head electrically connected with the conductor passing there through, forming a gas-tight cap of the first end of the bushing outside of the condenser core, sealingly engaging a circumferential lateral outer surface of the condenser core and sealingly engaging the conductor. The bushing also includes an electrically conductive connection between the inner field-grading layer and the head.

The present disclosure discloses a connection sleeve including a main body at least partially formed in a column shape; a conductive rod extending through the main body in an axial direction; a first electrical interface located at one end of the conductive rod; a second electrical interface located at other end of the conductive rod; a first shield piece and a second shield piece which are independent of each other, are formed in ring shapes and are respectively arranged around a part of the conductive rod; a first output interface connected to the first shield piece and configured to output a first voltage signal; and a second output interface connected to the second shield piece and configured to output a second voltage signal. The connection sleeve according to the present disclosure can output two groups of independent different voltage signals through two independent shield pieces.

A high-voltage bushing contains an insulating body that is arranged concentrically around a cylindrical winding support formed of an electrically-conductive material, conductive control inlays which capacitive potential control the high-voltage bushing and are spaced apart from one another by insulation layers, and are arranged concentrically with the winding support. A connection device is provided for establishing an electrical connection between a first control inlay closest to the winding support, and the winding support. The high-voltage bushing is characterized in that the connection device contains an electrical sliding contact.

A high-voltage bushing contains an insulating body that is arranged concentrically around a cylindrical winding support formed of an electrically-conductive material, conductive control inlays which capacitive potential control the high-voltage bushing and are spaced apart from one another by insulation layers, and are arranged concentrically with the winding support. A connection device is provided for establishing an electrical connection between a first control inlay closest to the winding support, and the winding support. The high-voltage bushing is characterized in that the connection device contains an electrical sliding contact.

The method is provided for manufacturing a perforated sheet-like high-voltage insulating spacer for a high-voltage component, which component comprises a field grading condenser core with the spacer which is wound in spiral form around an axis, with electrically conducting layers which are inserted between successive windings of the spacer, and with a polymeric matrix which penetrates the spacer and which embeds the spacer and the layers. The method comprises at least steps as follows: an electrically insulating tape, and the patterned tape is expanded at right angle to the cutting lines in order to form a spacer with a perforated three-dimensional lattice structure. The combined effect of cutting a tape and expanding the cutted tape allows the formation of spacers with a manifold of sizes which exceed the size of the tape in function of manufacturing parameters, in particular in function of the configuration of the pattern and the magnitude of the expansion.

The method is provided for manufacturing a perforated sheet-like high-voltage insulating spacer for a high-voltage component, which component comprises a field grading condenser core with the spacer which is wound in spiral form around an axis, with electrically conducting layers which are inserted between successive windings of the spacer, and with a polymeric matrix which penetrates the spacer and which embeds the spacer and the layers. The method comprises at least steps as follows: an electrically insulating tape, and the patterned tape is expanded at right angle to the cutting lines in order to form a spacer with a perforated three-dimensional lattice structure. The combined effect of cutting a tape and expanding the cutted tape allows the formation of spacers with a manifold of sizes which exceed the size of the tape in function of manufacturing parameters, in particular in function of the configuration of the pattern and the magnitude of the expansion.

A resin impregnated paper (RIP) condenser core configured for being positioned around an electrical conductor. The condenser core includes a winding tube forming a longitudinal through hole through the condenser core, configured for allowing an electrical conductor to be inserted there through; an electrically insulating RIP body wound onto and around the winding tube; and at least one electrically conducting foil coaxially encircling the winding tube and being surrounded by the RIP body insulating each of the at least one foil from any other of the at least one foil. The winding tube is of an electrically insulating material which has been chosen from a group consisting of materials having a volumetric thermal expansion coefficient within the range of 50% to 200% of the volumetric thermal expansion coefficient of the RIP body.

The present disclosure relates to a condenser core configured for surrounding an electrical conductor. The condenser core includes an insulation material and a plurality of electrically conducting capacitive layers for modifying electrical fields formed by a current flowing in the electrical conductor. At least one of the electrically conducting capacitive layers includes a first foil and a second foil. Each of the first and second foils of an outermost capacitive layer is connected with a grounding arrangement for grounding the foils.