DE1440755C - Test cable termination for high voltage cables - Google Patents

Claims (1)

1 2 The invention relates to test cable ends, or the construction can also be modified for high voltage cables, consisting of the shape of a molded end cone, an oil-free end of the end cone body in a storage container and a connection device for the other than The truncated cone shape is modified, the establishment of a connection with the cable conductor, 5 then better to the changed stress conditions in which the storage container partially fits from the end distribution, which is brought about by the presence of the terminal cones and partially from a conductive screen on this,
seated tubular body and is formed in such a way that the oil contained therein is explained a part more with reference to the drawings, which forms the insulation of the cable conductor, in which there is also a test cable end closure for producing a hole in the end closure cone whose temporary termination at an electrical cable further end increases in diameter to represent one of 275 KV, namely shows
to form a frustoconical end wall associated with FIG. 1 is a view of the test cable termination, the axis of the termination cone partially enclosing such an angle that is connected to the end of a cable that, in operation, it is essentially a 15-way section and partially in elevation,
Forms equipotential surface and in which the connection F i g. FIG. 2 shows a section through the electrical connection device, a metal rod or a pipe connection between a connection piece and the one in which, in operation, is represented by FIG. 1 leads through the cable ladder shown in a larger volumetric oil reservoir, so as to provide an electrical rod, while tric connection to the cable ladder, so Fig. 3 is a partial section showing an alternative according to patent 1261577. method for holding an oil container by a It is known that field concentrations represent that at end closure cone. Use of high voltage, otherwise field discharges. 1 and 2 shown test cables, prevented by shielding electrodes end closure consists of an end closure cone 1, which can (German Auslegeschrift S 21221 VTIId / 25 a tubular electrode 10, an electrical 21c), and devices of this type are known, connecting device 16 and a Shielding electrode, which is particularly suitable for protecting plug connections 30. The end closure cone 1 is constructed in such a way and suitable for high-voltage line parts are placed on a cable 23 as described in the main (German patent 922 799 and German patent 1 261577).
scripture 922 890). Thus, in a known device, an oil container 14 made of polymethacrylic ester with the shielding electrode is designed as a metal ring, a hole in its bottom wall is provided with an insulating coating at 15, which can be arranged by means of a cold-curing adhesive resin, as if so that it the connection, for example, surrounds the connector under the trademark »Araldite«. There are also available ones, connected to the head section 6,
35 The shield electrode 30, which serves the exposed tration and in which a conductive coating surrounds the conductor 27 of the cable 23 and is intended to serve as a corona on a correspondingly shaped part of an insulating shield for this, has one lator is provided, which is connected to the high-voltage "ring body 31 made of brass with a flat ring conductor, which is passed through this insulator, shaped brass plate 32, which is electrically connected in the middle (German Auslegeschrift 40 between the ring body ends in a circumferential groove 1007 846 For the same purpose, metal funnels are soldered into the inner circumferential surface. The ring in cast resin bodies for better potential distribution body 31 is known on its inner and outer circumference (German Auslegeschrift 1065 910). The invention has for its object to cover the layer 33 made of epoxy resin, the Cable termination according to the main patent 1261577 45 thickness of the resin is such that when on the cable for the testing of cables with an even higher span 23 located shield electrode 30 the latter with fits to make suitable than this in the case of the seat over the exposed end of the cable ladder 27 Main patent described embodiment of the cable sits, with one end of the coated ring end closure is possible. , .. ■ - body on the end face of the cable insulation 24 According to the invention, this object is thereby rests 50 and the brass plate 32 is in contact with the solved that is at the contact point of the conductor of the end of the cable conductor 27, test cable and the metal rod of the connec- The electrical connection to the conductor 27 of the An undesired field concentration cable 23 is transmitted by means of the connecting device shielding electrode preventing functions is provided. . 16 manufactured as described in the main patent 1261577 The shield electrode is expediently written as an electrical 55, and a metal pin 28, which is a snug fit in the Trically conductive ring body formed, sits at the end of the connecting device 16, leads at least the outer surface and the end faces with through the recess arranged in the middle of the a layer of insulating material ■ are covered. 'ring-shaped brass plate 32 back into conductor 27 The shield electrode can be permanently connected to the connection.
training device be attached. It can also be called 60
conductive covering on a suitably shaped Part of the inner surface of the sealing end cone.
be educated. Furthermore, it can be designed as a metallic tubular body embedded in the wall of the end closure cone. 65 1. Test cable termination for high voltage The termination cone of the test cable termination cable, consisting of a cast end Ses according to the present invention can be exactly in the cone, an oil reservoir and a Agreement with that of the main patent kon- connection device for the production of a