FI62914B - ELEKTRISK FOERBINDNING AV TVAO I LINJE MED VARANDRA LIGGANDE SAMLINGSSKENEROER - Google Patents

Description

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Federal Republic of Germany-Förbundsrepubliken Tyskland (DE) P 21 * 5 ^ 023.6 (71) Richard Bergner, RIBE-Elektro-Armaturen, Bahnhofstr. 8-Ϊ6, 0-85 ^ 0 Schvabach, Federal Republic of Germany-Förbundsrepubliken ^ fyskland (EE) (72) Lertar Möcks, Rednitzhembach. Federal Republic of Germany-Förbundsrepubliken [fyskland (DE) (71 *) Tuottajain Kone Oy (5 ^) Electrical connection of two busbars on the same coaxial axis - Elektrisk förbindning av tv & i linje med varandra liggande samlingsskeneerör

The invention refers to the electrical connection of two busbars which are coaxial with one another, in which a power connector is attached to the ends of the rail, they are connected to each other by means of flexible wires, in particular ropes.

An electrical connection of this type is known (DT-AS 2 250 207) »in which the flexible cables are spaced apart on a surface symmetrically about the longitudinal axis of the busbars to be connected. In this case, current is transferred from one terminal to another at opposite points, so that these points are stressed in a very special way according to the current and thus strongly thermally. This uneven load of 2,62914 can be very detrimental to the extent that busbars usually conduct currents of about 5,000 to 10,000 A.

The object of the invention is to develop an electrical connection as described above so as to provide as uniform a distribution of current as possible over the circumference of the pipe. According to the invention, this problem is solved in such a way that the connection points of the flexible cables with one power connector are distributed as evenly as possible to the power connector. With this development, a distributed current collection over the circumference of the pipe is achieved as evenly as possible, so that both the busbars as well as the current connectors are stressed according to the current and thermally evenly.

The connection according to the invention can be provided with known power connectors, which consist of two halves identical to each other. In a further development of the invention, each half of the power connector is provided on the outside with radial ribs spaced apart in a few axial directions, of which always two adjacent ribs are fixedly connected to each other by an axial transverse rib, and the transverse ribs are circumferentially opposed and have a flexible bore. The flexible cable can be welded or connected to a borehole in the crossbar (Figure 1).

Depending on the operating current, busbars can have several flexible cables connected in parallel to one bundle. In order for each flexible wire to be fully thermally balanced, the distance between the flexible wires outside the power terminals is one to four wire diameters. With a distance of one wire diameter, individual flexible wires can still dissipate their heat of dissipation without disturbing the environment.

In order to prevent the individual flexible wires of the bundle from bumping together in the event of a short circuit, they can be connected to each other with suitable insulating spacers, and in a similar manner, as is the case with overhead wiring harness wires. These spacers also prevent individual flexible wires from rubbing against each other and arcing when, for example, the wind causes vibrations in the flexible wires.

3 6291 4

To prevent uneven current loading of the flexible wires, which is dependent on the magnetic response of the adjacent phases, the flexible wires are routed so that the two adjacent flexible wires intersect. This wiring harness may cross again with another wiring harness. If mechanical means are then dispensed with, it is expedient to insulate the flexible cables from one another. For example, the flexible cables can then be coated with a shrink tubing.

Examples of the application of the invention are shown in the figures as follows:

Figure 1 is a side view of a joint according to the invention,

Figure 2 is a section along the line II-II in Figure 1,

Figure 3 is a schematic side view of an additional joint according to the invention,

Figure 4 is a section along the line IV-IV in Figure 3;

Figure 5 is a side view of an additional joint according to the invention,

Figure 6 is a top view according to Figure 5,

Figure 7 is a side view of an additional joint according to the invention and Figure 8 is a left view of Figure 7.

According to Figure 1, a power connector 3 is attached to the ends of two coaxial pipelines 1 and 2 to be electrically connected to each other. · Each power connector 3 consists of two symmetrically formed halves 4, outside which radially oriented ribs 5-8 are in the same body. . The halves 4 consist of an electrically highly conductive material, e.g. aluminum. The radial ribs 5-8 are connected to each other by transverse partitions 9, 10 and 11. These partitions 9-11 are provided with bore holes in which flexible wires, e.g. ropes with a low rise, are placed and welded to the walls 9-11. Of course, it is also possible to press the flexible wires, in the above case the ropes 12, into the boreholes of the partitions 9-11. The outer ends of the ropes 12 are electrically connected in the same way as the power connector 3 of the pipeline 1 "6291 4 with the power connector 3 of the pipeline 2. Since this power connector 3 in the pipeline 2 is identical to the power connector 3 of the pipeline 1, as shown in Figures 1 and 2 The ends of the ropes 12 are connected to the power connector 3 in such a way that the current collection of the pipelines 1 and 2 takes place as evenly as possible.

The flexible wires or ropes 12 are passed from one power connector 3 to another power connector 3 in a tightly bundled manner, as can be clearly seen in particular from Figures 3 and 4. The mutual distance of the flexible wires outside the power terminals 3 is 1-4 wire diameters. This distance in parallel flexible cables should not be less than the diameter of these flexible cables, because otherwise the individual flexible cables, e.g. ropes 12, can no longer transfer their heat dissipation to the environment without interference. In order to prevent mutual contact of flexible wires or ropes 12 at high currents, spacers 13 are designed, which consist of an insulating material. In order to prevent uneven current loading of the flexible wires or ropes 12, the flexible wires or ropes 12 can be led crosswise according to Figures 5 and 6. In this case, the flexible wires or ropes 12 can be coated with a shrink tubing to prevent mutual contact.

In the electrical connection of both pipelines 1 and 2, according to Figures 7 and 8, current connectors 14 are used, which also consist of two similarly formed halves 15 and 16, which are connected to pipelines 1 and 2 by tightening screws 17 and nuts 18. The halves 15 and 16 are provided with projections 19 in which the flexible wires or ropes 12 are placed and in which they are welded to the projections 19. Figures 7 and 8 show that always two adjacent ropes 12 intersect. The ropes 12 can then be coated with a shrink tubing.

Claims (8)

An electrically conductive current connection of two busbars with coaxial rails, consisting of two halves identical to each other, characterized in that each half (4) of the power connector (3) is provided on the outside with radial ribs (5-8) spaced apart in the axial direction. , of which always two adjacent radial ribs (5,6; 6,7; 7,8) are fixedly connected to each other by an axial transverse partition (9, 10, 11), that the transverse partitions are placed opposite each other in the circumferential direction and have a bore for the flexible cable (12) to receive. Connection according to Claim 1, characterized in that the flexible cable (12) is welded or pressed into the borehole. 3 · Connection according to one of the preceding claims, characterized in that a few flexible cables (12) are connected in parallel to the bundle. Connection according to one of the preceding claims, characterized in that the mutual distance of the flexible cables (12) outside the power terminals is 1 to 4 cable diameters. Connection according to one of the preceding claims, characterized in that the individual flexible cables (12) are connected to one another by an insulating spacer (13). 5 6291 4 Connection according to one of the preceding claims, characterized in that two adjacent flexible cables (12) intersect. 6,62914 Connection according to Claim 6, characterized in that the flexible cables (12) are insulated from one another when the spacer (13) is omitted. Connection according to Claim 7, characterized in that the flexible cables (12) are coated with a shrink tubing.