Arrangement structure of indoor distribution device overhead outgoing line triangular arrangement up and down lead-in

Abstract

The utility model belongs to the substation engineering technical field, concretely relates to a kind of indoor distribution device overhead line triangular arrangement upper and lower lead-in arrangement structure, reduce the space occupied by the line along the wall horizontal direction. On the one hand, A-phase line, B-phase line and C-phase line are triangularly arranged. On the other hand, when A-phase lead-in line and C-phase lead-in line are both upwardly lead-in, B-phase lead-in line is downwardly lead-in; when A-phase lead-in line and C-phase lead-in line are both downwardly lead-in, B-phase lead-in line is upwardly lead-in. The overhead line interval width is compressed, space is saved, the distribution device transverse dimension and main bus length are reduced, the overhead line channel is efficiently utilized, the number of overhead line is increased, and the cable mode overhead line investment is reduced.

Description

Technical Field

[0001] This utility model belongs to the field of power substation engineering technology, specifically relating to an arrangement structure for the upper and lower leads of the overhead outgoing lines of an indoor power distribution device in a triangular configuration. 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 overhead power distribution devices with triangular arrangement of upper and lower leads, which reduces 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 for the upper and lower leads of the overhead outgoing lines of the indoor power distribution device in a delta configuration, including an A-phase outgoing line lead-in mechanism, a B-phase outgoing line lead-in mechanism, a C-phase outgoing line lead-in mechanism, and a ground wire.

[0005] One end of the grounding wire is connected to the grounding embedded part in the wall, and the other end extends in a direction L1 away from the wall; the A-phase outgoing line leading mechanism, the B-phase outgoing line leading mechanism, and the C-phase outgoing line leading mechanism are all located below the grounding wire; the A-phase outgoing line leading mechanism and the C-phase outgoing line leading mechanism are both located above or below the B-phase outgoing line leading mechanism; the A-phase outgoing line leading mechanism and the C-phase outgoing line leading mechanism are arranged at a distance from each other along the horizontal direction L2 of the wall;

[0006] The branch busbar of the indoor power distribution device extends out of the wall and has a horizontal installation section parallel to the wall surface; the A-phase outgoing line lead-in mechanism, the B-phase outgoing line lead-in mechanism and the C-phase outgoing line lead-in mechanism are all connected to the horizontal installation section of the branch busbar.

[0007] Furthermore, the A-phase outgoing line connection mechanism includes a first tension insulator string, a first outgoing bushing, an A-phase lead wire, and an A-phase wire; the B-phase outgoing line connection mechanism includes a second tension insulator string, a second outgoing bushing, a B-phase lead wire, and a B-phase wire; and the C-phase outgoing line connection mechanism includes a third tension insulator string, a third outgoing bushing, a C-phase lead wire, and a C-phase wire.

[0008] One end of each of the first, second, and third tension insulator strings is mounted on the wall of the indoor substation via a mounting bracket, and all are located on the outside of 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 each has an A-phase hanging point, a B-phase hanging point, and a C-phase hanging point, respectively. One end of each A-phase line, B-phase line, and C-phase line is connected to the A-phase hanging point, B-phase hanging point, and C-phase hanging point, respectively, and the other ends of each A-phase line, B-phase line, and C-phase line extend in a direction L1 away from the wall.

[0009] One end of each of the first, second, and third outgoing bushings is connected to the horizontal installation section of the branch busbar. When the other ends of the first and third outgoing bushings extend upwards, and the other end of the second outgoing bushing extends in a direction L1 away from the wall, the first tension insulator string is positioned above the first outgoing bushing, the third tension insulator string is positioned above the third outgoing bushing, and the second tension insulator string is positioned below the second outgoing bushing. When the other ends of the first and third outgoing bushings extend in a direction L1 away from the wall, and the other end of the second outgoing bushing extends upwards, the first tension insulator string is positioned below the first outgoing bushing, the third tension insulator string is positioned below the third outgoing bushing, and the second tension insulator string is positioned above the second outgoing bushing.

[0010] One end of the horizontally installed section of the first outgoing bushing away from the branch busbar is spaced from phase A and is connected to phase A via a phase A lead wire; one end of the horizontally installed section of the second outgoing bushing away from the branch busbar is spaced from phase B and is connected to phase B via a phase B lead wire; one end of the horizontally installed section of the third outgoing bushing away from the branch busbar is spaced from phase C and is connected to phase C via a phase C lead wire.

[0011] Furthermore, the connection point between the A-phase lead wire and the A-phase line is located at the A-phase hanging point;

[0012] The connection point N between the B-phase lead wire and the B-phase line has a distance L1 from the B-phase hanging point in a direction away from the wall.

[0013] The connection point between the C-phase lead wire and the C-phase line is located at the C-phase hanging point.

[0014] Furthermore, the A-phase outgoing line connection mechanism is located on one side of the B-phase outgoing line connection mechanism, and the C-phase outgoing line connection mechanism is located on the other side of the B-phase outgoing line connection mechanism.

[0015] Furthermore, it also includes a support base installed on the wall, the support base being located below the branch busbar and outside the wall, and the pipe of the branch busbar being installed on the support base.

[0016] Furthermore, the support base is made of steel.

[0017] Compared with existing technologies, the beneficial effects of this utility model are as follows: This utility model provides an overhead power distribution device with a triangular arrangement of overhead lines leading upwards and downwards, reducing the space occupied by the horizontal lines along the wall. On one hand, the A-phase, B-phase, and C-phase lines are arranged in a triangular configuration. On the other hand, when both the A-phase and C-phase lines are led upwards, the B-phase line is led downwards; conversely, when both the A-phase and C-phase lines are led downwards, the B-phase line is led upwards. This reduces the width of the overhead line spacing, saves space, reduces the lateral dimensions of the power distribution device and the length of the main busbar, efficiently utilizes the overhead line channel, increases the number of overhead line loops, and reduces investment in cable-based outgoing lines. Attached Figure Description

[0018] Figure 1 This is a side view of the structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the cable exiting plane of this utility model;

[0020] Figure 3 This is a cross-sectional structural diagram of one embodiment of the present invention;

[0021] Figure 4 This is a cross-sectional schematic diagram of another embodiment of the present invention;

[0022] Figure label:

[0023] 1-A-phase outgoing line lead-in mechanism; 101-first tension insulator string; 102-first outgoing bushing; 103-A-phase lead-in wire; 104-A-phase line; 105-A-phase hanging point;

[0024] 2-Phase B outgoing line lead-in mechanism; 201-Second tension insulator string; 202-Second outgoing line bushing; 203-Phase B lead-in wire; 204-Phase B line; 205-Phase B hanging point;

[0025] 3-C phase outgoing line lead-in mechanism; 301-Third tension insulator string; 302-Third outgoing line bushing; 303-C phase lead-in wire; 304-C phase line; 305-C phase hanging point;

[0026] 4-Indoor power distribution equipment; 401-Branch busbar;

[0027] 5 - Ground wire;

[0028] 6-Support base;

[0029] 7-Walls. Detailed Implementation

[0030] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0031] 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.

[0032] The indoor power distribution device features a delta-shaped arrangement of overhead outgoing lines with vertical connections, including an A-phase outgoing line connection mechanism 1, a B-phase outgoing line connection mechanism 2, a C-phase outgoing line connection mechanism 3, and a ground wire 5. One end of the ground wire 5 is connected to a grounding embedded part in the wall 7, and the other end extends L1 away from the wall 7. The A-phase outgoing line connection mechanism 1, B-phase outgoing line connection mechanism 2, and C-phase outgoing line connection mechanism 3 are all located below the ground wire 5. The A-phase outgoing line connection mechanism 1 and C-phase outgoing line connection mechanism 3 are... Phase-out lead-in mechanism 3 is located above or below phase-B lead-out lead-in mechanism 2; phase-A lead-out lead-in mechanism 1 and phase-C lead-out lead-in mechanism 3 are arranged at a distance from each other along the horizontal direction L2 of the wall; the branch busbar 401 of the indoor power distribution device 4 extends out of the wall 7 and has a horizontal installation section 402 parallel to the wall surface; phase-A lead-out lead-in mechanism 1, phase-B lead-out lead-in mechanism 2 and phase-C lead-out lead-in mechanism 3 are all connected to the horizontal installation section 402 of the branch busbar 401.

[0033] The indoor substation includes a wall 7 and an indoor power distribution device 4 installed within the wall 7. The indoor power distribution device 4 can be a GIS power distribution device, an HGIS power distribution device, etc.

[0034] Ground wire 5 is grounded through a grounding embedded part inside wall 7. The grounding embedded part can be a metal strip, which is existing technology.

[0035] Specifically, the A-phase outgoing line lead-in mechanism 1 includes a first tension insulator string 101, a first outgoing bushing 102, an A-phase lead wire 103, and an A-phase line 104; the B-phase outgoing line lead-in mechanism 2 includes a second tension insulator string 201, a second outgoing bushing 202, a B-phase lead wire 203, and a B-phase line 204; and the C-phase outgoing line lead-in mechanism 3 includes a third tension insulator string 301, a third outgoing bushing 302, a C-phase lead wire 303, and a C-phase line 304.

[0036] One end of the first tension insulator string 101, the second tension insulator string 201, and the third tension insulator string 301 are all mounted on the wall 7 of the indoor substation via mounting brackets, and are all located on the outside of the wall 7; the other end of the first tension insulator string 101, the second tension insulator string 201, and the third tension insulator string 301 extends in a direction L1 away from the wall 7, and has an A-phase hanging point 105, a B-phase hanging point 205, and a C-phase hanging point 305 respectively; one end of the A-phase line 104, the B-phase line 204, and the C-phase line 304 is connected to the A-phase hanging point 105, the B-phase hanging point 205, and the C-phase hanging point 305 respectively, and the other end of the A-phase line 104, the B-phase line 204, and the C-phase line 304 extends in a direction L1 away from the wall 7.

[0037] One end of each of the first outgoing bushing 102, the second outgoing bushing 202, and the third outgoing bushing 302 is connected to the horizontal installation section 402 of the branch busbar 401. When the other ends of the first outgoing bushing 102 and the third outgoing bushing 302 extend upwards, and the other end of the second outgoing bushing 202 extends in a direction L1 away from the wall 7, the first tension insulator string 101 is positioned above the first outgoing bushing 102, and the third tension insulator string 301 is positioned above the third outgoing bushing 302. Two tension insulator strings 201 are positioned below the second outgoing bushing 202. When the other ends of the first outgoing bushing 102 and the third outgoing bushing 302 extend in a direction L1 away from the wall 7, and the other end of the second outgoing bushing 202 extends upward, the first tension insulator string 101 is positioned below the first outgoing bushing 102, the third tension insulator string 301 is positioned below the third outgoing bushing 302, and the second tension insulator string 201 is positioned above the second outgoing bushing 202.

[0038] One end of the horizontally installed section 402 of the first outgoing bushing 102 away from the branch busbar 401 is spaced from the A-phase line 104 and is connected to the A-phase line 104 through the A-phase lead wire 103; one end of the horizontally installed section 402 of the second outgoing bushing 202 away from the branch busbar 401 is spaced from the B-phase line 204 and is connected to the B-phase line 204 through the B-phase lead wire 203; one end of the horizontally installed section 402 of the third outgoing bushing 302 away from the branch busbar 401 is spaced from the C-phase line 304 and is connected to the C-phase line 304 through the C-phase lead wire 303.

[0039] Example 1

[0040] When both the A-phase outgoing line lead-in mechanism 1 and the C-phase outgoing line lead-in mechanism 3 are located above the B-phase outgoing line lead-in mechanism 2, the A-phase line 104, the first tension insulator string 101, the C-phase line 304, and the third tension insulator string 301 are all located above the horizontal installation section 402 of the branch busbar 401. The other ends of the first outgoing bushing 102 and the third outgoing bushing 302 away from the horizontal installation section 402 of the branch busbar 401 extend upwards, and the A-phase lead-in wire 103 and the C-phase lead-in wire 303 are both led upwards. The B-phase line 204 and the second tension insulator string 201 are both located below the horizontal installation section 402 of the branch busbar 401. The other end of the second outgoing bushing 202 away from the horizontal installation section 402 of the branch busbar 401 extends in a direction L1 away from the wall 7, and the B-phase lead-in wire 203 is led downwards.

[0041] Example 2

[0042] When both the A-phase outgoing line lead-in mechanism 1 and the C-phase outgoing line lead-in mechanism 3 are located below the B-phase outgoing line lead-in mechanism 2, the A-phase line 104, the first tension insulator string 101, the C-phase line 304, and the third tension insulator string 301 are all located below the horizontal installation section 402 of the branch busbar 401. The other ends of the horizontal installation section 402 of the first outgoing bushing 102 and the third outgoing bushing 302, away from the branch busbar 401, extend in a direction L1 away from the wall 7. The A-phase lead wire 103 and the C-phase lead wire 303 are both led downwards. The B-phase line 204 and the second tension insulator string 201 are located above the horizontal installation section 402 of the branch busbar 401. The other end of the horizontal installation section 402 of the second outgoing bushing 202, away from the branch busbar 401, extends upwards, and the B-phase lead wire 203 is led upwards.

[0043] On the one hand, phase A line 104, phase B line 204 and phase C line 304 are arranged in a triangular configuration.

[0044] On the other hand, when both phase A lead wire 103 and phase C lead wire 303 are connected upwards, phase B lead wire 203 is connected downwards; when both phase A lead wire 103 and phase C lead wire 303 are connected downwards, phase B lead wire 203 is connected upwards.

[0045] It must be ensured that the spacing between any two phases (A-phase 104, B-phase 204, C-phase 304, and ground wire 5) meets electrical safety requirements. The spacing between one end of the horizontally mounted section 402 of the first outgoing bushing 102 away from the branch busbar 401 and phase A 104 must meet electrical safety requirements. The spacing between one end of the horizontally mounted section 402 of the second outgoing bushing 202 away from the branch busbar 401 and phase B 204 must meet electrical safety requirements. The spacing between one end of the horizontally mounted section 402 of the third outgoing bushing 302 away from the branch busbar 401 and phase C 304 must meet electrical safety requirements.

[0046] Preferably, the connection point between the A-phase lead wire 103 and the A-phase line 104 is located at the A-phase hanging point 105; the connection point N between the B-phase lead wire 203 and the B-phase line 204 has a distance L1 from the B-phase hanging point 205 in a direction away from the wall 7; the connection point between the C-phase lead wire 303 and the C-phase line 304 is located at the C-phase hanging point 305.

[0047] Preferably, the A-phase outgoing line leading mechanism 1 is located on one side of the B-phase outgoing line leading mechanism 2, and the C-phase outgoing line leading mechanism 3 is located on the other side of the B-phase outgoing line leading mechanism 2.

[0048] Preferably, it also includes a support base 6 installed on the wall 7, the support base 6 being located below the branch busbar 401 and outside the wall 7, and the pipe of the branch busbar 401 being installed on the support base 6. The support base 6 can be a support plate, preferably a tripod.

[0049] The support base 6 can be made of hard metal. As a further preferred option, the support base 6 is made of steel.

[0050] Preferably, the mounting base includes a connected mounting plate and a connector. The mounting plate is bolted to the wall 7. The connector is located on the side of the mounting plate opposite to the wall 7. The connector can be a hook, a lock, etc. Specifically, one end of the first tension insulator string 101 is connected to the connector of the first mounting base. One end of the second tension insulator string 201 is connected to the connector of the second mounting base. One end of the third tension insulator string 301 is connected to the connector of the third mounting base.

[0051] 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 delta-connected upper and lower leads, characterized in that: It includes the A-phase outgoing line lead-in mechanism (1), the B-phase outgoing line lead-in mechanism (2), the C-phase outgoing line lead-in mechanism (3), and the ground wire (5); One end of the ground wire (5) is connected to the grounding embedded part in the wall (7), and the other end extends in a direction L1 away from the wall (7); the A-phase outgoing line connection mechanism (1), the B-phase outgoing line connection mechanism (2) and the C-phase outgoing line connection mechanism (3) are all located below the ground wire (5); the A-phase outgoing line connection mechanism (1) and the C-phase outgoing line connection mechanism (3) are both located above or below the B-phase outgoing line connection mechanism (2); the A-phase outgoing line connection mechanism (1) and the C-phase outgoing line connection mechanism (3) are arranged at a distance from each other along the horizontal direction L2 of the wall; The branch busbar (401) of the indoor power distribution device (4) extends out of the wall (7) and has a horizontal installation section (402) parallel to the wall surface; the A-phase outgoing line connection mechanism (1), the B-phase outgoing line connection mechanism (2) and the C-phase outgoing line connection mechanism (3) are all connected to the horizontal installation section (402) of the branch busbar (401).

2. The arrangement structure of the overhead outgoing lines of the indoor power distribution device with delta-shaped upper and lower leads as described in claim 1, characterized in that: The A-phase outgoing line connection mechanism (1) includes a first tension insulator string (101), a first outgoing bushing (102), an A-phase lead wire (103), and an A-phase line (104); the B-phase outgoing line connection mechanism (2) includes a second tension insulator string (201), a second outgoing bushing (202), a B-phase lead wire (203), and a B-phase line (204); the C-phase outgoing line connection mechanism (3) includes a third tension insulator string (301), a third outgoing bushing (302), a C-phase lead wire (303), and a C-phase line (304). One end of the first tension insulator string (101), the second tension insulator string (201), and the third tension insulator string (301) are all mounted on the wall (7) of the indoor substation via mounting brackets, and are all located on the outside of the wall (7); the other end of the first tension insulator string (101), the second tension insulator string (201), and the third tension insulator string (301) all extend in a direction L1 away from the wall (7), and each has an A phase. The A-phase line (105), the B-phase line (205), and the C-phase line (305) are connected at one end to the A-phase line (104), the B-phase line (204), and the C-phase line (304), respectively. The other ends of the A-phase line (104), the B-phase line (204), and the C-phase line (304) extend in a direction L1 away from the wall (7). One end of each of the first outgoing bushing (102), the second outgoing bushing (202), and the third outgoing bushing (302) is connected to the horizontal installation section (402) of the branch busbar (401); when the other ends of the first outgoing bushing (102) and the third outgoing bushing (302) extend upwards, and the other end of the second outgoing bushing (202) extends in a direction L1 away from the wall (7), the first tension insulator string (101) is positioned above the first outgoing bushing (102), and the third tension insulator string (301) is positioned above the third outgoing bushing (302). The second tension insulator string (201) is positioned below the second outgoing bushing (202); when the other ends of the first outgoing bushing (102) and the third outgoing bushing (302) extend in a direction L1 away from the wall (7) and the other end of the second outgoing bushing (202) extends upward, the first tension insulator string (101) is positioned below the first outgoing bushing (102), the third tension insulator string (301) is positioned below the third outgoing bushing (302), and the second tension insulator string (201) is positioned above the second outgoing bushing (202); One end of the horizontally installed section (402) of the first outgoing bushing (102) away from the branch busbar (401) is spaced from the A-phase line (104) and is connected to the A-phase line (104) through the A-phase lead wire (103); one end of the horizontally installed section (402) of the second outgoing bushing (202) away from the branch busbar (401) is spaced from the B-phase line (204) and is connected to the B-phase line (204) through the B-phase lead wire (203); one end of the horizontally installed section (402) of the third outgoing bushing (302) away from the branch busbar (401) is spaced from the C-phase line (304) and is connected to the C-phase line (304) through the C-phase lead wire (303).

3. The arrangement structure of the overhead outgoing lines of the indoor power distribution device with delta-shaped upper and lower leads as described in claim 2, characterized in that: The connection point between the A-phase lead wire (103) and the A-phase line (104) is located at the A-phase hanging point (105); The connection point N between the B-phase lead wire (203) and the B-phase line (204) has a distance L1 from the B-phase hanging point (205) in a direction away from the wall (7); The connection point between the C-phase lead wire (303) and the C-phase line (304) is located at the C-phase hanging point (305).

4. The arrangement structure of the overhead outgoing lines of the indoor power distribution device with delta-shaped upper and lower leads as described in any one of claims 1-3, characterized in that: The A-phase outgoing line connection mechanism (1) is located on one side of the B-phase outgoing line connection mechanism (2), and the C-phase outgoing line connection mechanism (3) is located on the other side of the B-phase outgoing line connection mechanism (2).

5. The arrangement structure of the overhead outgoing lines of the indoor power distribution device with delta-shaped upper and lower leads as described in claim 1, characterized in that: It also includes a support base (6) installed on the wall (7), the support base (6) being located below the branch busbar (401) and outside the wall (7), the tube of the branch busbar (401) being installed on the support base (6).

6. The arrangement structure of the overhead outgoing line of the indoor power distribution device with delta arrangement and upper and lower lead-in as described in claim 5, characterized in that: The support base (6) is made of steel.

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