Arrangement structure of indoor distribution device overhead outgoing line longitudinal arrangement transverse lead-in

Abstract

The utility model belongs to the substation engineering technical field, concretely relates to a kind of arrangement structure of indoor distribution device overhead line longitudinal arrangement horizontal lead, reduce the space occupied by the line along wall body horizontal direction. On the one hand, ground wire, A-phase line, B-phase line and C-phase line are arranged with a certain distance from top to bottom, and are located in the same vertical plane, and form the vertical surface of outgoing line. To realize the longitudinal arrangement of ground wire, A-phase line, B-phase line and C-phase line in the vertical surface of outgoing line. On the other hand, branch bus, first outgoing line bushing, second outgoing line bushing and third outgoing line bushing are located on the same side of strain insulator string group, the end of first outgoing line bushing away from branch bus is connected with A-phase line through A-phase lead-in wire, the end of second outgoing line bushing away from branch bus is connected with B-phase line through B-phase lead-in wire, the end of third outgoing line bushing away from branch bus is connected with C-phase line through C-phase lead-in wire, to realize horizontal lead-in.

Description

Technical Field

[0001] This utility model belongs to the field of power substation engineering technology, specifically relating to an arrangement structure for the longitudinal arrangement and transverse connection of overhead outgoing lines of indoor power distribution equipment. Background Technology

[0002] Power engineering is divided into three main parts: power generation, transmission, and substation. Substations include two main categories: outdoor substations and indoor substations. Indoor substations are widely used in the field of substation engineering technology due to their advantages such as saving land area, short construction period, low project cost, and high power supply reliability. Let's take the GIS (Gas Insulated Switchgear) distribution device in an indoor substation as an example. In indoor substations, the outgoing lines of the GIS distribution device typically adopt the traditional "I"-shaped outgoing line configuration. That is, the three outgoing bushings of the GIS distribution device are arranged horizontally in a straight line along the wall, with a gap between adjacent bushings. The conductors are led upwards, and the overhead outgoing lines are located above the three bushings. This method occupies a lot of horizontal space, and the number of overhead outgoing lines is limited. Circuits without space for overhead outgoing lines must use cable outgoing lines, resulting in high costs. At the same time, this type of distribution device has a longer main busbar, which is also expensive. Utility Model Content

[0003] The technical problem to be solved by this utility model is to provide an arrangement structure for the overhead outgoing lines of an indoor power distribution device that is arranged longitudinally and connected laterally, thereby reducing the space occupied by the outgoing lines along the horizontal direction of the wall.

[0004] The technical solution adopted by this utility model to solve its technical problem is: an arrangement structure of overhead outgoing lines of indoor power distribution equipment arranged longitudinally and connected laterally, including a first tension insulator string, a second tension insulator string, a third tension insulator string, a first outgoing bushing, a second outgoing bushing, a third outgoing bushing, an A-phase lead wire, a B-phase lead wire, a C-phase lead wire, 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 the wall via a mounting base and is located on the outside of the wall. The other ends of each string extend in a direction L1 away from the wall, forming phase A, phase B, and phase C hanging points, respectively. The first, second, and third tension insulator strings are arranged in pairs from top to bottom, forming a tension insulator string group.

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

[0007] One end of each of the first, second, and third outgoing bushings is connected to a branch busbar extending horizontally from the wall of the 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 outgoing bushings are located in the same vertical plane, forming a bushing vertical surface; the branch busbar, the first outgoing bushing, the second outgoing bushing, and the third outgoing bushing are located on the same side of the tension insulator string assembly; there is a gap between the outgoing vertical surface and the bushing vertical surface;

[0008] The end of the first outgoing bushing furthest from the branch busbar is connected to phase A via phase A lead wire; the end of the second outgoing bushing furthest from the branch busbar is connected to phase B via phase B lead wire; and the end of the third outgoing bushing furthest from the branch busbar is connected to phase C via phase C lead wire.

[0009] Furthermore, the first outgoing bushing is arranged inclined upward in a direction L1 away from the wall, and the end of the first outgoing bushing away from the branch bus is located between the A phase line and the B phase line.

[0010] The second outgoing bushing is arranged horizontally and is located to the side of phase B;

[0011] The third outgoing bushing is arranged inclined downwards in the direction L1 away from the wall, and the end of the third outgoing 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 outgoing bushing furthest from the branch busbar is close to the A-phase line, the end of the second outgoing bushing furthest from the branch busbar is flush with the B-phase line, and the end of the third outgoing bushing furthest from the branch busbar is close to the C-phase line.

[0013] Furthermore, it also includes a diagonal brace installed below the branch busbar, the upper end of which is connected to the pipe of the branch busbar, and the lower end of which is connected to the wall.

[0014] Compared with the prior art, the beneficial effects of this utility model are: This utility model provides an arrangement structure for the longitudinal arrangement and transverse connection of overhead outgoing lines in an indoor power distribution device, reducing the space occupied by outgoing lines in the horizontal direction along the wall. It compresses the width of the outgoing line interval, saves space, reduces the lateral dimensions of the power distribution device and the length of the main busbar, efficiently utilizes the overhead outgoing line channel, increases the number of overhead outgoing line cycles, and reduces outgoing line investment. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model;

[0016] Figure 2 This is a plan view of the present invention;

[0017] Figure 3 This is a schematic diagram of the connection of phase A, phase B, and phase C leads in this utility model;

[0018] Attached reference numerals: 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 wire; 8-B-phase lead wire; 9-C-phase lead wire; 10-A-phase wire; 11-B-phase wire; 12-C-phase wire; 13-Indoor power distribution equipment; 14-Branch busbar; 15-Diagonal brace; 16-Wall; 17-Ground wire. Detailed Implementation

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

[0020] The terms "first," "second," and "third" used in this document are distinguishing descriptions of the technical features. This solution is applicable to overhead outgoing lines of all voltage levels and types of power distribution equipment. Without departing from the spirit and substance of this patent, those skilled in the art can make various corresponding changes and modifications based on this patent, but all such changes and modifications should fall within the protection scope of the appended claims.

[0021] The indoor power distribution equipment has an overhead outgoing line arrangement with longitudinal and transverse leads, including a first tension insulator string 1, a second tension insulator string 2, a third tension insulator string 3, a first outgoing bushing 4, a second outgoing bushing 5, a third outgoing 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 a wall 16 via a mounting base, and all are located on the outside of the wall 16. The other end of each tension insulator string 3 extends in a direction L1 away from the wall 16, forming phase A hanging point 101, phase B hanging point 201, and 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, forming 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 phase A line 10, phase B line 11, and phase C line 12 are respectively connected to phase A hanging point 101, phase B hanging point 201, and phase C hanging point 301. The lines are connected at point 301. The other ends of phase A line 10, phase B line 11, and phase C line 12 all extend in a direction L1 away from the wall 16. The ground wire 17, phase A line 10, phase B line 11, and phase C line 12 are arranged in pairs from top to bottom, located in the same vertical plane, and form a vertical outgoing surface. One end of the first outgoing sleeve 4, the second outgoing sleeve 5, and the third outgoing sleeve 6 are all connected to the branch busbar 14 of the indoor power distribution device 13 extending horizontally out of the wall 16, and the other ends extend in a direction L1 away from the wall 16, forming a radial structure. The first outgoing sleeve 4, the second outgoing sleeve 5, and the third outgoing sleeve 6 are all connected in a radial structure. The axes of tube 5 and the third outgoing bushing 6 are located in the same vertical plane and form a vertical plane of the bushing; 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 group; there is a gap between the vertical plane of the outgoing line and the vertical plane of the bushing; the end of the first outgoing 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 outgoing 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 outgoing 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 installed within the wall 16. The indoor power distribution device 13 can be a GIS power distribution device, an HGIS power distribution device, etc.

[0023] 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 existing technology.

[0024] On one hand, the ground wire 17, phase A wire 10, phase B wire 11, and phase C wire 12 are arranged in pairs from top to bottom, spaced apart, and located in the same vertical plane, forming a vertical outgoing plane. This achieves the longitudinal arrangement of the ground wire 17, phase A wire 10, phase B wire 11, and phase C wire 12 within the vertical outgoing plane. The spacing between each pair of the ground wire 17, phase A wire 10, phase B wire 11, and phase C wire 12 should meet electrical safety requirements.

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

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

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

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

[0029] To further improve structural stability, preferably, a diagonal brace 15 is also included below the branch busbar 14. The upper end of the diagonal brace 15 is connected to the pipe 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 pipe 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. The mounting plate is bolted to the wall 16. The connector is located on the side of the mounting plate opposite to 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 specific embodiments described are preferred embodiments of this utility model and are not intended to limit the scope of protection of this utility model. All equivalent changes made to the structure, shape, and principle of this utility model should be included within the scope of protection of this utility model.

Claims

1. A layout structure for overhead power distribution equipment with longitudinal arrangement and transverse connection of outgoing lines, characterized in that: It includes the first tension insulator string (1), the second tension insulator string (2), the third tension insulator string (3), the first outgoing bushing (4), the second outgoing bushing (5), the third outgoing bushing (6), the A-phase lead wire (7), the B-phase lead wire (8), the C-phase lead wire (9), the A-phase line (10), the B-phase line (11), the C-phase line (12), and the ground wire (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 mounted on the wall (16) through mounting bases and are all located outside the wall (16); the other end of the first tension insulator string (1), the second tension insulator string (2), and the third tension insulator string (3) all extend in a direction L1 away from the wall (16) and form A-phase hanging point (101), B-phase hanging point (201), and 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 a direction L1 away from the wall (16); one end of the A phase wire (10), B phase wire (11) and C phase wire (12) is connected to the A phase hanging point (101), B phase hanging point (201) and C phase hanging point (301) respectively, and the other end of the A phase wire (10), B phase wire (11) and C phase wire (12) all extend in a direction L1 away from the wall (16); the ground wire (17), A phase wire (10), B phase wire (11) and C phase wire (12) are arranged in pairs from top to bottom and are located in the same vertical plane, forming a vertical plane for the wire to exit; One end of the first outgoing bushing (4), the second outgoing bushing (5), and the third outgoing bushing (6) are all connected to the branch busbar (14) of the indoor power distribution device (13) extending horizontally out of the wall (16), and the other end of each extends in a direction L1 away from the wall (16) and forms a radial structure; the axes of the first outgoing bushing (4), the second outgoing bushing (5), and the third outgoing bushing (6) are located in the same vertical plane and form a bushing vertical surface; 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 group; there is a gap between the outgoing vertical surface and the bushing vertical surface; The end of the first outgoing 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 outgoing 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 outgoing 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 overhead outgoing lines of the indoor power distribution device with longitudinal arrangement and transverse connection as described in claim 1, characterized in that: The first outgoing bushing (4) is arranged inclined upward in a direction L1 away from the wall (16), and the end of the first outgoing bushing (4) away from the branch bus (14) is located between the A phase line (10) and the B phase line (11); The second outgoing bushing (5) is arranged horizontally and is located to the side of phase B line (11); The third outgoing bushing (6) is arranged inclined downward in a direction L1 away from the wall (16), and the end of the third outgoing bushing (6) away from the branch bus (14) is located between the B phase line (11) and the C phase line (12).

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

4. The arrangement structure of the overhead outgoing line of the indoor power distribution device with longitudinal arrangement and transverse connection as described in claim 1, characterized in that: It also includes a diagonal brace (15) installed below the branch busbar (14), the upper end of which is connected to the pipe of the branch busbar (14), and the lower end is connected to the wall (16).

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