Power distribution structure suitable for multidirectional overhead outgoing line corridor

Abstract

The utility model provides a power distribution structure suitable for a multidirectional overhead outgoing line corridor, which comprises a building, a GIS device is arranged in the building, the GIS device comprises a plurality of outgoing line interval devices, a plurality of main transformer interval devices, a plurality of bus devices, a plurality of bus couplings and a segmentation device, at least one of the outgoing line interval devices is a reverse overhead outgoing line, and at least one of the main transformer interval devices is a reverse overhead outgoing line. The outgoing line sleeve is arranged on one side opposite to the forward outgoing line interval, and climbs to the roof along the outer wall; at least one is a lateral overhead outgoing line, and the outgoing line sleeve of the lateral overhead outgoing line interval needs to extend to the side of the interval of the reverse outgoing line and the forward outgoing line; the utility model further comprises the power distribution structure in the scheme, and the power distribution structure is used for outgoing line of the outgoing line interval equipment of reverse overhead outgoing line and lateral overhead outgoing line. The utility model has the advantages that the wire outgoing scale is increased through double-layer overhead wire outgoing, and wire outgoing in different directions is met through multi-side wire outgoing, so that the cable utilization rate, the occupied area of a transformer substation and the number of line towers are reduced, and the wire outgoing corridor is expanded.

Description

Technical Field

[0001] The utility model designs a power distribution structure suitable for multi-directional overhead outgoing line corridors, which belongs to the technical field of electric power equipment and can effectively reduce the lateral size of the substation and the outgoing line structure with reduced floor space. Background Art

[0002] The design of the outgoing line of indoor GIS substation is usually single-layer single-side overhead outgoing line, or single-layer single-side overhead outgoing line + cable mixed outgoing line, or full cable outgoing line. However, in economically developed and densely populated areas, the power supply demand is large, and the outgoing line scale needs to be increased. It is also necessary to control the area occupied by the substation, reduce the project cost, and improve the reliability of equipment operation and maintenance. More and more substations choose the multi-side and double-layer overhead outgoing line structure according to the actual outgoing line direction and outgoing line scale. Utility Model Content

[0003] The technical problem to be solved by the utility model is: the technical problem that the existing indoor GIS substation construction site is limited, the outgoing line scale is large and it is difficult to use overhead outgoing lines.

[0004] The purpose of the utility model is to propose a multi-side, double-layer overhead outgoing line suitable for indoor GIS substations. The conception is based on the full utilization of the longitudinal space of the outgoing line interval, and the outgoing line scale is increased through the double-layer overhead outgoing line. The outgoing line is satisfied in different directions through the multi-side outgoing line, thereby reducing the cable utilization rate, the substation floor space, the number of line towers, and expanding the outgoing line corridor.

[0005] In order to solve the above technical problems, the technical solution adopted by the utility model is:

[0006] A power distribution structure for reverse overhead outgoing lines of indoor GIS equipment comprises a first frame and a second frame, wherein the first frame is installed above a building on the reverse outgoing line side, and the second frame is installed above a building on the forward outgoing line side, the first frame has a first crossbeam, the second frame has a second crossbeam, a support insulator is arranged above the second crossbeam, a cross-line tension insulator string is installed on the reverse outgoing line side of the first crossbeam, a cross-line tension insulator string is installed on the reverse outgoing line side of the second crossbeam, and an outgoing line tension insulator string is installed on the forward outgoing line side; the first The cross-line tension insulator string on the crossbeam and the cross-line tension insulator string on the second crossbeam are used to connect the cross-line of the reverse outgoing line interval, the support insulator on the second crossbeam is used to support the cross-line of the reverse outgoing line interval and the jumper of the overhead line, and the outgoing line tension insulator string is used to connect the overhead line; the wires led out from the reverse outgoing line bushing of the indoor GIS equipment are connected to the overhead line via the cross-line tension insulator string on the first crossbeam and the cross-line tension insulator string on the second crossbeam, the jumper supported by the support insulator on the second crossbeam, and the outgoing line tension insulator string.

[0007] It also includes a frame, on which a crossbeam is provided, a suspension insulator string is provided below the crossbeam, and an outlet line tension insulator string is provided on the side of the crossbeam; the suspension insulator string is used for leading outgoing lines from lateral outlet bushings, and the outlet line tension insulator string is used for connecting overhead lines; the conductors led out from the lateral outlet bushings of indoor GIS equipment are connected to the overhead lines via the suspension insulator string and the outlet line tension insulator string.

[0008] The first frame and the second frame are arranged on the roof of a building, and GIS equipment is arranged in the building.

[0009] The first frame and the second frame are provided with ground wire hanging points for leading the ground wire. The frame is arranged on the ground and on the side of the building. The frame is provided with ground wire hanging points for leading the ground wire.

[0010] The utility model adapts to the further development of the power grid, fully utilizes the upper and side spaces, realizes more overhead outgoing lines or even all overhead outgoing lines, reduces the cable usage rate, and improves the reliability of line operation. Moreover, without increasing the area occupied by the substation, the outgoing line scale is expanded to meet the requirements of future power grid development. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] The utility model will be further described below in conjunction with the accompanying drawings:

[0012] Figure 1 This is the plan layout of the indoor power distribution device of the indoor GIS substation of the utility model;

[0013] Figure 2 This is the plan layout of the rooftop power distribution device of the indoor GIS substation of the utility model;

[0014] Figure 3 This is a cross-sectional view of the reverse outlet interval in the utility model;

[0015] Figure 4 It is a cross-sectional view of the lateral outlet interval in the utility model.

[0016] In the figure: 1. GIS equipment, 2. Forward outlet bushing, 3. Reverse outlet bushing, 4. Side outlet bushing, 5. Lead wire, 6. Cross-over wire, 7. Jumper wire, 8. Cross-over strain insulator string, 9. Suspension insulator string, 10. Outgoing line strain insulator string, 11. Post insulator, 12. Ground wire hanging point, 13. First frame, 14. First beam, 15. Second frame, 16. Second beam, 17. Frame, 18. Upper beam of the frame. DETAILED DESCRIPTION

[0017] The present invention is described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0018] The utility model is applicable to 110kV and 220kV indoor GIS overhead outgoing lines. Example

[0019] This embodiment further illustrates the utility model by taking the application in 220kV indoor GIS overhead outgoing line as an example.

[0020] See attached Figure 1-2 A distribution structure suitable for multi-directional overhead outgoing line corridors includes a building with GIS equipment inside; the GIS equipment includes multiple outgoing line intervals L1-L16, multiple main transformer intervals Z1-Z4, multiple busbar intervals MS1-MS4, busbars M1-M2 and sections F1-F2. In the outgoing line intervals, L1, L5- L8, L10, L12, and L15 are arranged on one side of the building, using forward overhead outgoing lines, which are forward outgoing line intervals; L3-L4, L11, and L13 are arranged on the reverse side of the forward outgoing line interval, which are reverse outgoing line intervals; L2, L9, L14, and L16 are arranged on both sides of the forward and reverse outgoing lines, which are lateral outgoing line intervals. The outgoing line interval equipment of the reverse overhead outgoing line is arranged on the same side as the main transformer interval equipment, and the reverse outgoing line bushing climbs along the outer wall to the roof; the outgoing line interval equipment of the lateral overhead outgoing line is arranged on the same side as the forward outgoing line equipment, and the lateral outgoing line bushing extends to both sides of the forward and reverse outgoing lines. The outgoing line spacing device includes a forward outgoing line bushing 2, a reverse outgoing line bushing 3, and a lateral outgoing line bushing 4. Figure 3In the figure, the forward outgoing line bushing 2, the reverse outgoing line bushing 3, and the indoor GIS equipment 1 jointly constitute the indoor GIS equipment of the substation. It also includes a distribution structure applied to the reverse overhead outgoing line of the indoor GIS equipment, and the distribution structure is used for the outgoing line interval equipment outgoing line of the reverse overhead outgoing line. The distribution structure includes a first frame 13 and a second frame 15. The first frame 13 and the second frame 15 are arranged on the roof of a building with GIS equipment. The first frame 13 has a first beam 14, and the second frame 15 has a second beam 16. A support insulator 11 is arranged above the second beam 16. A cross-line tension insulator string 8 is installed on the reverse outgoing line side of the first beam 14, and a cross-line tension insulator string 8 is installed on the reverse outgoing line side of the second beam 16, and an outgoing line tension insulator string 10 is installed on the forward outgoing line side; the cross-line tension insulator string 8 on the first beam 14 and the second beam 16 are installed on the The cross-line tension insulator string 8 is used to connect the cross-line 6 of the reverse outgoing line interval, the support insulator 11 on the second crossbeam 16 is used to support the cross-line 6 of the reverse outgoing line interval and the jumper 7 of the overhead line, and the outgoing line tension insulator string 10 is used to connect the overhead line; the conductor 5 led out of the reverse outgoing line bushing 3 of the indoor GIS equipment 1 is connected to the overhead line via the cross-line tension insulator string 8 on the first crossbeam 14 and the cross-line tension insulator string 8 on the second crossbeam 16, the jumper 7 supported by the support insulator 11 on the second crossbeam 16, and the outgoing line tension insulator string 10, so as to realize the overhead outgoing line of the interval equipment. The first frame 13 and the second frame 15 are provided with a ground wire hanging point 12 for leading the ground wire. Figure 4 In the figure, the lateral outlet bushing 4 and the indoor GIS equipment 1 jointly constitute the indoor GIS equipment of the substation. It also includes a distribution structure applied to the lateral overhead outlet of the indoor GIS equipment, which is used for the outlet of the lateral overhead outlet of the outlet interval equipment. The distribution structure includes a frame 17, a crossbeam 18 is provided on the frame 17, a suspension insulator string 9 is provided below the crossbeam 18, and an outlet tension insulator string 10 is provided on the side of the crossbeam 18; the suspension insulator string 9 is used for the outlet lead-in of the lateral outlet bushing 4, and the outlet tension insulator string 10 is used to connect the overhead line; the conductor 5 led out of the lateral outlet bushing 4 of the indoor GIS equipment 1 is connected to the overhead line through the suspension insulator string 9 and the outlet tension insulator string 10, so as to realize the overhead outlet of the interval equipment. The frame 17 is set on the ground, on the side of the building. A ground wire hanging point 12 is provided on the top of the frame 17 for leading the ground wire.

[0021] The outgoing line bay equipment of the reverse overhead outgoing line is arranged on the same side as the main transformer bay equipment, but the outgoing line bushing of the reverse overhead outgoing line needs to climb to the roof, so the number of circuits of the reverse overhead outgoing line is not limited by the number of main transformer bays.

[0022] The reverse overhead line shares a line corridor with the forward overhead line, and the height of the reverse overhead line is higher than that of the forward overhead line.

[0023] The line spacing equipment for lateral overhead lines is arranged on the side of the positive and negative overhead lines, so as not to be affected by the positive and negative overhead lines.

[0024] As described above, although the present invention has been shown and described with reference to specific preferred embodiments, it should not be interpreted as limiting the present invention itself. Various changes can be made to it in form and detail without departing from the spirit and scope of the present invention defined in the appended claims.

Claims

1. A power distribution structure suitable for multi-directional overhead line corridors, characterized in that: It comprises a first frame and a second frame, wherein the first frame is installed above a building on the reverse outgoing line side, and the second frame is installed above a building on the forward outgoing line side. The first frame is provided with a first beam, and the second frame is provided with a second beam. A support insulator is provided above the second beam. A cross-line tension insulator string is installed on the reverse outgoing line side of the first beam, a cross-line tension insulator string is installed on the reverse outgoing line side of the second beam, and an outgoing line tension insulator string is installed on the forward outgoing line side. The cross-line tension insulator string on the first beam and the cross-line tension insulator string on the second beam are used to connect the cross-line of the reverse outgoing line interval, and the support insulator on the second beam is used to support the cross-line of the reverse outgoing line interval and the jumper of the overhead line, and the outgoing line tension insulator string is used to connect the overhead line. The wires led out from the reverse outgoing line bushing of the indoor GIS equipment are connected to the overhead line via the cross-line tension insulator string on the first beam, the cross-line tension insulator string on the second beam, the jumper supported by the support insulator on the second beam, and the outgoing line tension insulator string.

2. A power distribution structure suitable for multi-directional overhead line corridors according to claim 1, characterized in that: It also includes a frame, on which a crossbeam is provided, a suspension insulator string is provided below the crossbeam, and an outlet line tension insulator string is provided on the side of the crossbeam; the suspension insulator string is used for leading outgoing lines from lateral outlet bushings, and the outlet line tension insulator string is used for connecting overhead lines; the conductors led out from the lateral outlet bushings of indoor GIS equipment are connected to the overhead lines via the suspension insulator string and the outlet line tension insulator string.

3. A power distribution structure suitable for multi-directional overhead line corridors according to claim 1, characterized in that: The first frame and the second frame are arranged on the roof of a building, and GIS equipment is arranged in the building.

4. A power distribution structure suitable for multi-directional overhead line corridors according to claim 1, characterized in that: The first frame and the second frame are provided with ground wire hanging points for connecting the ground wires.

5. A power distribution structure suitable for multi-directional overhead line corridors according to claim 2, characterized in that: The frame is arranged on the ground, at the side of the building.

6. A power distribution structure suitable for multi-directional overhead line corridors according to claim 2, characterized in that: The frame is provided with a ground wire hanging point for leading the ground wire.

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