Patent classifications
H02G15/02
CABLE CONNECTOR AND CABLE TERMINATION
A first aspect relates to cable connectors for connecting two multicore cables, namely, two flat cables or one flat cable and one round cable. The cable connector includes a clamping sleeve, having a ceramic insulator with at least two openings, one on each side of the clamping sleeve, for accommodating core conductors. The clamping sleeve includes at least two contact inserts that pass through the clamping sleeve at corresponding openings on both sides. Clamping elements are associated with each of the at least two contact inserts in order to clamp the core conductors on one side or the other side of the contact inserts, and thus to establish electrical contact between the clamping sleeve and the multicore flat cable or round cable, thereby connecting the two cables. The cable connector also includes a heat shrink tube that envelops the entering portions of the cables and the clamping sleeve, and in the shrunken state lies tightly against an outer contour of the clamping sleeve and an outer contour of the portion of the cables that enter the clamping sleeve.
A second aspect relates to a cable termination for the insulating termination of a multicore flat cable. The cable termination includes a clamping sleeve that includes a ceramic insulator with at least two openings on one side of the clamping sleeve for accommodating core conductors. The clamping sleeve includes at least two contact inserts situated behind the openings, a clamping element being associated with each of the at least two contact inserts in order to clamp the core conductors on the contact inserts and thus establish mechanical fixing of the core conductors on the clamping sleeve so as to electrically insulate them from one another, and thus to terminate the cable. The cable termination also includes a heat shrink tube that envelops the entering portion of the cable and the clamping sleeve, and in the shrunken state lies tightly against an outer contour of the clamping sleeve and an outer contour of the portion of the cable that enters the clamping sleeve.
CABLE CONNECTOR AND CABLE TERMINATION
A first aspect relates to cable connectors for connecting two multicore cables, namely, two flat cables or one flat cable and one round cable. The cable connector includes a clamping sleeve, having a ceramic insulator with at least two openings, one on each side of the clamping sleeve, for accommodating core conductors. The clamping sleeve includes at least two contact inserts that pass through the clamping sleeve at corresponding openings on both sides. Clamping elements are associated with each of the at least two contact inserts in order to clamp the core conductors on one side or the other side of the contact inserts, and thus to establish electrical contact between the clamping sleeve and the multicore flat cable or round cable, thereby connecting the two cables. The cable connector also includes a heat shrink tube that envelops the entering portions of the cables and the clamping sleeve, and in the shrunken state lies tightly against an outer contour of the clamping sleeve and an outer contour of the portion of the cables that enter the clamping sleeve.
A second aspect relates to a cable termination for the insulating termination of a multicore flat cable. The cable termination includes a clamping sleeve that includes a ceramic insulator with at least two openings on one side of the clamping sleeve for accommodating core conductors. The clamping sleeve includes at least two contact inserts situated behind the openings, a clamping element being associated with each of the at least two contact inserts in order to clamp the core conductors on the contact inserts and thus establish mechanical fixing of the core conductors on the clamping sleeve so as to electrically insulate them from one another, and thus to terminate the cable. The cable termination also includes a heat shrink tube that envelops the entering portion of the cable and the clamping sleeve, and in the shrunken state lies tightly against an outer contour of the clamping sleeve and an outer contour of the portion of the cable that enters the clamping sleeve.
Integrated compact bushing structure combining the functionality of primary contact with a current transformer primary conductor and a post insulator
A bushing structure for a switchgear includes a mounting portion constructed and arranged to mount the bushing structure. A barrel portion extends from the mounting portion and is coaxial there-with. The barrel portion includes a plurality of undulations in a peripheral surface thereof to increase creepage distance. A primary contact is disposed within and extends a length of the barrel portion. The primary contact has a first end constructed and arranged to be contacted by a movable contact of the switchgear and a second end constructed and arranged to be connected with a busbar.
Integrated compact bushing structure combining the functionality of primary contact with a current transformer primary conductor and a post insulator
A bushing structure for a switchgear includes a mounting portion constructed and arranged to mount the bushing structure. A barrel portion extends from the mounting portion and is coaxial there-with. The barrel portion includes a plurality of undulations in a peripheral surface thereof to increase creepage distance. A primary contact is disposed within and extends a length of the barrel portion. The primary contact has a first end constructed and arranged to be contacted by a movable contact of the switchgear and a second end constructed and arranged to be connected with a busbar.
PLUGGABLE HIGH-VOLTAGE BUSHING AND HIGH-VOLTAGE INSTALLATION HAVING THE PLUGGABLE HIGH-VOLTAGE BUSHING
A high-voltage bushing can be plugged into a bushing socket of an electrical device of a high-voltage installation. The high-voltage bushing has an internal conductor, an insulating body which at least partly encloses the internal conductor, and a plug-in section for plugging the high-voltage bushing into the bushing socket. A heat pipe is provided in the internal conductor. The heat pipe is at least partly filled with a vaporizable cooling liquid and the heat pipe extends into the plug-in section. A high-voltage installation having the high-voltage bushing is also provided.
Keyed cable and connector system
A universal cable system includes a cable, which may include a keyed profile and an optional, integrated pull cable for low-voltage applications in residential and commercial structures, both old and new construction, which may further includes a connector, which does not require individual splicing of the wires from the cable. The connector may be self-crimping or crimped with a tool. During installation of the connector onto the cable, conductors in the connector may be simultaneously spliced to the wires of the cable during crimping.
Keyed cable and connector system
A universal cable system includes a cable, which may include a keyed profile and an optional, integrated pull cable for low-voltage applications in residential and commercial structures, both old and new construction, which may further includes a connector, which does not require individual splicing of the wires from the cable. The connector may be self-crimping or crimped with a tool. During installation of the connector onto the cable, conductors in the connector may be simultaneously spliced to the wires of the cable during crimping.
HVDC Mass Impregnated Cable Transition Joint
A method for creating a flexible transition joint between HVDC-MI cables (20/40) having different diameters. The central wires (24/44) of the conductors (22/42) are thermally joined by a conical connection piece (62). The strands of the layers of stranded wires (26) surrounding the central wires (2474) are rewound, cut and thermally joined along their respective lay lengths. The stranded are sanded/ground along the lay length of the strands to form a smooth uniform transition having the same slope as the conical connection piece. A paper lapping machine is used to form an insulation patch (72) over the transition joint (69).
Method of Manufacturing a Termination Band
The present disclosure provides a termination band and a method of manufacturing the termination band, which includes a strap and a head. When secured, the head comprises an upper wall, lower wall and opposed side walls formed as a loop with the strap extending therefrom. The termination band is therefore formed as a two-piece component, rather than a single piece as in the prior art. Advantageously this enables the strap and the head to be formed from stainless steel strip having the same width as the head and the strap. It is therefore not necessary to trim the material of either part, hence there is significantly reduced material wastage when forming the termination band. In addition, because the strap and head are both initially in the form of straight-sided elongate strips prior to the folding or joining operations, both parts may be easily edge finished and/or surface finished.
Method of Manufacturing a Termination Band
The present disclosure provides a termination band and a method of manufacturing the termination band, which includes a strap and a head. When secured, the head comprises an upper wall, lower wall and opposed side walls formed as a loop with the strap extending therefrom. The termination band is therefore formed as a two-piece component, rather than a single piece as in the prior art. Advantageously this enables the strap and the head to be formed from stainless steel strip having the same width as the head and the strap. It is therefore not necessary to trim the material of either part, hence there is significantly reduced material wastage when forming the termination band. In addition, because the strap and head are both initially in the form of straight-sided elongate strips prior to the folding or joining operations, both parts may be easily edge finished and/or surface finished.