Arrangement structure for longitudinally arranging and transversely leading overhead outgoing lines of indoor power distribution device

Abstract

The invention belongs to the technical field of power transformation engineering, and particularly relates to an arrangement structure for longitudinally arranging and transversely leading overhead outgoing lines of an indoor power distribution device, which reduces the space occupied by the outgoing lines in the horizontal direction of a wall body. On one hand, the ground wire, the A-phase wire, the B-phase wire and the C-phase wire are arranged in a pairwise spaced mode from top to bottom and located in the same vertical plane, and a wire outlet vertical plane is formed. Therefore, the longitudinal arrangement of the ground wire, the A-phase wire, the B-phase wire and the C-phase wire in the wire outlet vertical plane is realized. On the other hand, the branch bus, the first outgoing line sleeve, the second outgoing line sleeve and the third outgoing line sleeve are located on the same side of the strain insulator string group, one end, far away from the branch bus, of the first outgoing line sleeve is connected with an A-phase line through an A-phase lead wire, and one end, far away from the branch bus, of the second outgoing line sleeve is connected with a B-phase line through a B-phase lead wire; and one end, far away from the branch bus, of the third wire outlet sleeve is connected with the C-phase wire through a C-phase lead wire, so that transverse lead connection is realized.

Description

Technical Field

[0001] The invention belongs to the technical field of power transformation engineering, and in particular relates to a layout structure in which overhead outgoing lines of an indoor power distribution device are arranged longitudinally and connected transversely. Background Art

[0002] Power engineering projects are divided into three major areas: power generation, transmission, and substation. Substations are classified into two categories: outdoor and indoor. Indoor substations are widely used in substation engineering due to their advantages, such as reduced floor space, short construction period, low project cost, and high power supply reliability. Take the GIS distribution device in an indoor substation as an example. In indoor substations, the outgoing wires of the GIS distribution device typically adopt the traditional "straight" arrangement. This means that the three outgoing wire bushings of the GIS distribution device are arranged horizontally along the wall, with spacing between adjacent outgoing wire bushings. The conductors are routed upward, and the overhead outgoing wires are located above the three outgoing wire bushings. This arrangement consumes a lot of horizontal space and limits the number of overhead outgoing wires. As a result, circuits without space for overhead outgoing wires must use cable outgoing wires, which is costly. Furthermore, this arrangement results in a long main busbar for the distribution device, which is expensive. Summary of the Invention

[0003] The technical problem to be solved by the present invention is to provide a layout structure in which the overhead outgoing lines of an indoor power distribution device are arranged longitudinally and connected laterally, thereby reducing the space occupied by the outgoing lines in the horizontal direction of the wall.

[0004] The technical solution adopted by the present invention to solve the technical problem is: an arrangement structure of an indoor power distribution device with overhead outgoing lines arranged longitudinally and connected transversely, comprising a first tension insulator string, a second tension insulator string, a third tension insulator string, a first outgoing line bushing, a second outgoing line bushing, a third outgoing line bushing, an A-phase lead-in connection, a B-phase lead-in connection, a C-phase lead-in connection, an A-phase line, a B-phase line, a C-phase line, and a ground wire;

[0005] One end of each of the first, second, and third tension insulator strings is mounted on a wall through a mounting base and is located outside the wall; the other ends of each of the first, second, and third tension insulator strings extend in a direction L1 away from the wall, and form a phase A hanging point, a phase B hanging point, and a phase C hanging point, respectively; the first, second, and third tension insulator strings are spaced apart from each other from top to bottom, and form a tension insulator string group;

[0006] One end of the ground wire is connected to the embedded grounding part in the wall, and the other end extends in a direction L1 away from the wall; one end of the A-phase wire, the B-phase wire, and the C-phase wire are connected to the A-phase hanging point, the B-phase hanging point, and the C-phase hanging point, respectively, and the other ends of the A-phase wire, the B-phase wire, and the C-phase wire all extend in a direction L1 away from the wall; the ground wire, the A-phase wire, the B-phase wire, and the C-phase wire are arranged in pairs from top to bottom and are located in the same vertical plane, forming a vertical surface for the outlet wires;

[0007] One end of each of the first, second, and third outlet bushings is connected to a branch busbar extending horizontally out of a wall of an indoor power distribution device, and the other end extends in a direction L1 away from the wall, forming a radial structure; the axes of the first, second, and third outlet bushings are located in the same vertical plane and form a bushing vertical surface; the branch busbar, first, second, and third outlet bushings are located on the same side of a tension insulator string; and a gap is provided between the outlet vertical surface and the bushing vertical surface.

[0008] One end of the first outgoing bushing away from the branch bus is connected to the A phase line through the A phase lead-in wire; one end of the second outgoing bushing away from the branch bus is connected to the B phase line through the B phase lead-in wire; one end of the third outgoing bushing away from the branch bus is connected to the C phase line through the C phase lead-in wire.

[0009] Furthermore, the first outlet bushing is arranged obliquely upward in a direction L1 away from the wall, and an end of the first outlet bushing away from the branch bus is located between the A-phase line and the B-phase line;

[0010] The second outlet bushing is arranged horizontally and is located on the side of the B phase line;

[0011] The third outlet bushing is arranged obliquely downward in a direction L1 away from the wall, and one end of the third outlet bushing away from the branch bus is located between the B-phase line and the C-phase line.

[0012] Furthermore, the end of the first outlet bushing away from the branch bus is close to the A phase line, the end of the second outlet bushing away from the branch bus is flush with the B phase line, and the end of the third outlet bushing away from the branch bus is close to the C phase line.

[0013] Furthermore, it also includes an oblique brace arranged below the branch busbar, the upper end of the oblique brace is connected to the tube of the branch busbar, and the lower end is connected to the wall.

[0014] Compared with existing technologies, the present invention offers the following advantages: It provides a layout structure for arranging overhead outgoing cables longitudinally and routing them laterally for indoor power distribution devices, reducing the space occupied by outgoing cables horizontally along the wall. This reduces the width of the outgoing cables, conserving space, reducing the lateral dimensions of the distribution device and the length of the main busbar, and efficiently utilizing the overhead outgoing cable channels, increasing the number of overhead outgoing cables and reducing outgoing cable investment. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural schematic diagram of the present invention;

[0016] Figure 2 It is a plan view schematic diagram of the present invention;

[0017] Figure 3 Schematic diagram of the connection of the A-phase lead wire, the B-phase lead wire, and the C-phase lead wire in the present invention;

[0018] Figure markings: 1-first tension insulator string; 101-A phase hanging point; 2-second tension insulator string; 201-B phase hanging point; 3-third tension insulator string; 301-C phase hanging point; 4-first outgoing bushing; 5-second outgoing bushing; 6-third outgoing bushing; 7-A phase lead-in connection; 8-B phase lead-in connection; 9-C phase lead-in connection; 10-A phase line; 11-B phase line; 12-C phase line; 13-indoor power distribution device; 14-bracing busbar; 15-bracing; 16-wall; 17-ground wire. DETAILED DESCRIPTION

[0019] The present invention will be further described below with reference to the accompanying drawings and examples.

[0020] The terms "first," "second," and "third" herein are distinguishing features of the technology. This solution is applicable to overhead outgoing lines for all types of distribution equipment at all voltage levels. Without departing from the spirit and substance of this patent, those skilled in the art may make various modifications and variations based on this patent, provided that such modifications and variations fall within the scope of protection of the claims appended to this patent.

[0021] The arrangement structure of the overhead outgoing line of the indoor power distribution device is arranged longitudinally and connected horizontally, including a first tension insulator string 1, a second tension insulator string 2, a third tension insulator string 3, a first outgoing line bushing 4, a second outgoing line bushing 5, a third outgoing line bushing 6, an A-phase lead-in connection 7, a B-phase lead-in connection 8, a C-phase lead-in connection 9, an A-phase line 10, a B-phase line 11, a C-phase line 12 and a ground line 17; one end of the first tension insulator string 1, the second tension insulator string 2 and the third tension insulator string 3 are all installed on the wall 16 through a mounting base and are all located outside the wall 16; the first tension insulator string 1, the second tension insulator string 2 and the third tension insulator string 3 are all installed on the wall 16 through a mounting base, ... The other ends of the tension insulator strings 3 extend in the direction L1 away from the wall 16, and form the A-phase hanging point 101, the B-phase hanging point 201 and the C-phase hanging point 301 respectively; the first tension insulator string 1, the second tension insulator string 2 and the third tension insulator string 3 are arranged in pairs from top to bottom, and form a tension insulator string group; one end of the ground wire 17 is connected to the grounding embedded part in the wall 16, and the other end extends in the direction L1 away from the wall 16; one end of the A-phase line 10, the B-phase line 11 and the C-phase line 12 are connected to the A-phase hanging point 101, the B-phase hanging point 201 and the C-phase hanging point respectively. The line point 301 is connected, and the other ends of the A phase line 10, the B phase line 11 and the C phase line 12 are extended in the direction L1 away from the wall 16; the ground line 17, the A phase line 10, the B phase line 11 and the C phase line 12 are arranged in pairs from top to bottom and are located in the same vertical plane to form an outlet vertical plane; one end of the first outlet bushing 4, the second outlet bushing 5 and the third outlet bushing 6 are connected to the branch bus 14 of the indoor power distribution device 13 extending horizontally out of the wall 16, and the other ends are extended in the direction L1 away from the wall 16 to form a radial structure; the first outlet bushing 4, the second outlet bushing The axes of the tube 5 and the third outlet bushing 6 are located in the same vertical plane and form a bushing vertical plane; the branch busbar 14, the first outlet bushing 4, the second outlet bushing 5 and the third outlet bushing 6 are located on the same side of the tension insulator string group; there is a distance between the outlet vertical plane and the bushing vertical plane; the end of the first outlet bushing 4 away from the branch busbar 14 is connected to the A phase line 10 through the A phase lead wire 7; the end of the second outlet bushing 5 away from the branch busbar 14 is connected to the B phase line 11 through the B phase lead wire 8; the end of the third outlet bushing 6 away from the branch busbar 14 is connected to the C phase line 12 through the C phase lead wire 9.

[0022] The indoor substation includes a wall 16 and an indoor power distribution device 13 disposed in the wall 16. The indoor power distribution device 13 may be a GIS power distribution device, an HGIS power distribution device, or the like.

[0023] The ground wire 17 is grounded through a grounding embedded part in the wall 16. The grounding embedded part can be a metal strip, which is a prior art.

[0024] On the one hand, ground wire 17, phase A wire 10, phase B wire 11, and phase C wire 12 are arranged in pairs from top to bottom and located in the same vertical plane, forming a vertical plane for outgoing cables. This ensures that ground wire 17, phase A wire 10, phase B wire 11, and phase C wire 12 are arranged longitudinally within the vertical plane for outgoing cables. The spacing between ground wire 17, phase A wire 10, phase B wire 11, and phase C wire 12 must meet electrical safety requirements.

[0025] On the other hand, the branch busbar 14, the first outgoing bushing 4, the second outgoing bushing 5, and the third outgoing bushing 6 are located on the same side of the tension insulator string. The end of the first outgoing bushing 4 away from the branch busbar 14 is connected to the A phase line 10 via the A phase lead 7. The end of the second outgoing bushing 5 away from the branch busbar 14 is connected to the B phase line 11 via the B phase lead 8. The end of the third outgoing bushing 6 away from the branch busbar 14 is connected to the C phase line 12 via the C phase lead 9. This achieves horizontal connection.

[0026] It should be ensured that the distance between the vertical surface of the outlet wire and the vertical surface of the bushing meets the electrical safety requirements.

[0027] Preferably, the first outlet bushing 4 is arranged obliquely upward in the direction L1 away from the wall 16, and the end of the first outlet bushing 4 away from the branch bus 14 is located between the A phase line 10 and the B phase line 11; the second outlet bushing 5 is arranged horizontally and is located on the side of the B phase line 11; the third outlet bushing 6 is arranged obliquely downward in the direction L1 away from the wall 16, and the end of the third outlet bushing 6 away from the branch bus 14 is located between the B phase line 11 and the C phase line 12.

[0028] Preferably, the end of the first outlet bushing 4 away from the branch busbar 14 is close to the A phase line 10, the end of the second outlet bushing 5 away from the branch busbar 14 is flush with the B phase line 11, and the end of the third outlet bushing 6 away from the branch busbar 14 is close to the C phase line 12.

[0029] To further improve structural stability, preferably, a diagonal brace 15 is provided below the branch busbar 14. The upper end of the diagonal brace 15 is connected to the tube of the branch busbar 14, and the lower end is connected to the wall 16. The upper end of the diagonal brace 15 is connected to the tube of the branch busbar 14 by bolts or welding, and the lower end of the diagonal brace 15 is connected to the wall 16 by bolts.

[0030] Preferably, the mounting base includes a connected mounting plate and a connector, and the mounting plate is mounted on the wall 16 by bolts. The connector is located on the side of the mounting plate opposite the wall 16. The connector can be a hook, a lock, etc. Specifically, one end of the first tension insulator string 1 is connected to the connector of the first mounting base. One end of the second tension insulator string 2 is connected to the connector of the second mounting base. One end of the third tension insulator string 3 is connected to the connector of the third mounting base.

[0031] The embodiments of the specific implementation are all preferred embodiments of the present invention and are not intended to limit the scope of protection of the present invention. Any equivalent changes made based on the structure, shape, and principle of the present invention should be included in the scope of protection of the present invention.

Claims

1. The layout structure of the indoor power distribution device overhead outgoing line is arranged longitudinally and connected horizontally, which is characterized by: The invention comprises a first tension insulator string (1), a second tension insulator string (2), a third tension insulator string (3), a first outlet bushing (4), a second outlet bushing (5), a third outlet bushing (6), an A-phase lead wire (7), a B-phase lead wire (8), a C-phase lead wire (9), an A-phase line (10), a B-phase line (11), a C-phase line (12), and a ground wire (17); One end of each of the first tension insulator string (1), the second tension insulator string (2) and the third tension insulator string (3) is mounted on the wall (16) through a mounting base and is located outside the wall (16); the other ends of each of the first tension insulator string (1), the second tension insulator string (2) and the third tension insulator string (3) extend in a direction L1 away from the wall (16) and form a phase A hanging point (101), a phase B hanging point (201) and a phase C hanging point (301) respectively; the first tension insulator string (1), the second tension insulator string (2) and the third tension insulator string (3) are arranged in pairs from top to bottom and form a tension insulator string group; One end of the ground wire (17) is connected to the grounding embedded part in the wall (16), and the other end extends in a direction L1 away from the wall (16); one end of the A-phase wire (10), the B-phase wire (11), and the C-phase wire (12) are respectively connected to the A-phase hanging point (101), the B-phase hanging point (201), and the C-phase hanging point (301), and the other ends of the A-phase wire (10), the B-phase wire (11), and the C-phase wire (12) all extend in a direction L1 away from the wall (16); the ground wire (17), the A-phase wire (10), the B-phase wire (11), and the C-phase wire (12) are arranged in pairs from top to bottom and are located in the same vertical plane, and form a vertical plane for the outlet wires; One end of the first outlet bushing (4), the second outlet bushing (5) and the third outlet bushing (6) are all connected to a branch busbar (14) extending horizontally out of a wall (16) of an indoor power distribution device (13), and the other ends extend in a direction L1 away from the wall (16) to form a radial structure; the axes of the first outlet bushing (4), the second outlet bushing (5) and the third outlet bushing (6) are located in the same vertical plane and form a bushing vertical surface; the branch busbar (14), the first outlet bushing (4), the second outlet bushing (5) and the third outlet bushing (6) are located on the same side of the tension insulator string group; there is a distance between the outlet vertical surface and the bushing vertical surface; One end of the first outlet bushing (4) away from the branch busbar (14) is connected to the A phase line (10) through the A phase lead wire (7); one end of the second outlet bushing (5) away from the branch busbar (14) is connected to the B phase line (11) through the B phase lead wire (8); and one end of the third outlet bushing (6) away from the branch busbar (14) is connected to the C phase line (12) through the C phase lead wire (9).

2. The arrangement structure of the indoor power distribution device with overhead outgoing lines arranged longitudinally and connected transversely as claimed in claim 1, characterized in that: The first outlet bushing (4) is arranged obliquely upward in the direction L1 away from the wall (16), and one end of the first outlet bushing (4) away from the branch busbar (14) is located between the A phase line (10) and the B phase line (11); The second outlet bushing (5) is arranged horizontally and is located on the side of the B phase line (11); The third outlet bushing (6) is arranged obliquely downward in a direction L1 away from the wall (16), and one end of the third outlet bushing (6) away from the branch busbar (14) is located between the B phase line (11) and the C phase line (12).

3. The arrangement structure of the indoor power distribution device with overhead outgoing lines arranged longitudinally and connected transversely as claimed in claim 1 or 2, characterized in that: The end of the first outlet bushing (4) away from the branch busbar (14) is close to the A phase line (10), the end of the second outlet bushing (5) away from the branch busbar (14) is flush with the B phase line (11), and the end of the third outlet bushing (6) away from the branch busbar (14) is close to the C phase line (12).

4. The arrangement structure of the indoor power distribution device with overhead outgoing lines arranged longitudinally and connected transversely as claimed in claim 1, characterized in that: It also includes an oblique brace (15) arranged below the branch busbar (14), wherein the upper end of the oblique brace (15) is connected to the tube of the branch busbar (14), and the lower end is connected to the wall (16).

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