CN220909291U - Transmission line tower with strengthen lightning protection performance - Google Patents
Transmission line tower with strengthen lightning protection performance Download PDFInfo
- Publication number
- CN220909291U CN220909291U CN202322092167.2U CN202322092167U CN220909291U CN 220909291 U CN220909291 U CN 220909291U CN 202322092167 U CN202322092167 U CN 202322092167U CN 220909291 U CN220909291 U CN 220909291U
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- ground wire
- middle phase
- hanging point
- tower
- lightning protection
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- 230000005540 biological transmission Effects 0.000 title claims abstract description 16
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 24
- 229910052742 iron Inorganic materials 0.000 claims abstract description 12
- 239000012212 insulator Substances 0.000 claims description 47
- 239000011521 glass Substances 0.000 abstract description 5
- 230000009286 beneficial effect Effects 0.000 description 2
- 239000004020 conductor Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 230000009545 invasion Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Abstract
The utility model discloses a power transmission line tower with enhanced lightning protection performance, and relates to a power transmission line tower; the device comprises an iron tower body, wherein two sides of the iron tower body are respectively connected with a lower crank arm and an upper crank arm, and a medium-phase lead is connected between the upper crank arms at two sides; the upper crank arms on two sides are connected with cross arms, the end parts of the cross arms are connected with wires and a ground wire support, the ground wire support is connected with a ground wire, and the ground wire and the wires form lightning protection on two sides; a middle phase upper tower pane structure is connected between the upper crank arms on the two sides, a middle phase third ground wire support is connected to the upper part of the middle phase upper tower pane structure, a third ground wire is connected to the top end of the outer side of the middle phase third ground wire support, and the third ground wire is used for forming lightning protection on a middle phase lead; the utility model improves the lightning protection level of the line, prolongs the whole service life of the transmission line, and is suitable for 1000 kilovolt wine glass towers.
Description
Technical Field
The utility model relates to a transmission line tower, in particular to a transmission line tower with enhanced lightning protection performance.
Background
The 1000kV extra-high voltage alternating current line is the alternating current transmission line with the highest voltage class, when the 1000kV extra-high voltage transmission line is in lightning protection design, the 1000kV overhead transmission line design rule requires that lightning protection measures are properly enhanced on a 2km inlet and outlet line section of a transformer substation so as to prevent lightning from directly striking lightning invasion waves formed by wires in the inlet and outlet line section of the transformer substation to damage electrical equipment in the substation, and in the 2km inlet and outlet line section range of the transformer substation, a wine glass tower is frequently used, and the currently used wine glass tower adopts a double-ground wire lightning protection design. However, the arrangement of the double ground wires is a lightning protection design of a conventional line, and the double ground wires cannot meet the requirement of properly enhancing lightning protection measures when being used in a range of 2km in-out line segments.
Disclosure of utility model
The utility model overcomes the defects of the prior art and provides a power transmission line tower with enhanced lightning protection performance. So as to improve the lightning protection performance of 1000 kilovolt extra-high voltage alternating current lines.
In order to achieve the above purpose, the present utility model is realized by the following technical scheme.
The utility model provides a transmission line tower with strengthen lightning protection performance, includes the iron tower body, is connected with down crank arm respectively in iron tower body both sides, is connected with the upper crank arm in the upper portion of lower crank arm, is connected with V type insulator chain between the upper crank arm of both sides, and V type insulator chain lower extreme is connected with the mesophase wire; the upper crank arms on two sides are connected with cross arms, the end parts of the cross arms are connected with wires through insulator strings, the cross arms are connected with ground wire brackets, the ground wire brackets are connected with ground wires, and the ground wires and the wires form lightning protection on two sides; the upper crank arms on the two sides are connected with a middle phase upper tower window frame structure, the upper part of the middle phase upper tower window frame structure is connected with a middle phase third ground wire support, the top end of the outer side of the middle phase third ground wire support is connected with a third ground wire, and the third ground wire is used for forming lightning protection on a middle phase lead.
Further, a ground wire fitting hanging point is arranged at the top end of the outer side of the middle phase third ground wire support, and the lower part of the ground wire fitting hanging point is connected with the third ground wire through a fitting.
Furthermore, a ground wire hanging point is arranged at the top end of the outer side of the ground wire support, and the lower part of the ground wire hanging point is connected with the ground wire through a hardware fitting; the length of the overhanging cantilever of the ground wire fitting hanging point is the same as that of the overhanging cantilever of the ground wire hanging point.
Further, the upper crank arms on the two sides are provided with hanging points of the medium-phase V-shaped insulator string; the first insulator string and the second insulator string hung between the hanging points of the two middle-phase V-shaped insulator strings form a V-shaped insulator string with an included angle, and a middle-phase lead is arranged at the lower end of the V-shaped insulator string.
Further, the end part of the cross arm is connected with an I-shaped insulator string hanging point, the upper end of the insulator string is connected with the I-shaped insulator string hanging point, and the lower end of the insulator string is connected with a wire.
Further, the tower body of the iron tower is a 1000 kilovolt wine glass tower body.
Compared with the prior art, the utility model has the following beneficial effects:
According to the utility model, a third ground wire hanging bracket is added above the iron tower and is used for hanging a third ground wire. The third ground wire hanging bracket is newly added, so that the lightning protection level of the line can be improved, the electrical equipment in the station is protected, the later operation and maintenance cost is reduced, and the whole service life of the power transmission line is prolonged from the viewpoint of the cost of the whole life cycle.
Drawings
Fig. 1 is a schematic structural diagram of a transmission line tower with enhanced lightning protection performance according to the present utility model.
Fig. 2 is a front view of a third ground bracket of the mesophase.
FIG. 3 is a view in the A-A direction of FIG. 2;
FIG. 4 is a B-B view of FIG. 2;
FIG. 5 is a C-C view of FIG. 2;
FIG. 6 is a D-D view of FIG. 2;
FIG. 7 is an E-E view of FIG. 2;
FIG. 8 is a F-F view of FIG. 2;
In the figure: the tower body of the iron tower, the lower crank arm on the 2-right side, the upper crank arm on the 3-right side, the lower crank arm on the 4-left side, the upper crank arm on the 5-left side, the 6-right phase conducting wire, the 7-right side insulator chain, the 8-right phase I-shaped insulator chain hanging point, the 9-left phase conducting wire, the 10-left side insulator chain, the 11-left phase I-shaped insulator chain hanging point, the 12-middle phase V-shaped insulator chain hanging point, the 14-first insulator chain, the 15-second insulator chain, the 16-middle phase conducting wire, the 17-right side ground wire hanging point, the 18-right side ground wire bracket, the 19-left side ground wire hanging point, the 20-left side ground wire bracket, the 21-middle phase third ground wire bracket, the 22-ground wire hanging point, the 23-right side cross arm, the 24-left side cross arm, the 25-middle phase upper tower structure, the 26-second ground wire, the 27-first ground wire, the 28-third ground wire and the 29-fitting.
Detailed Description
In order to make the technical problems, technical schemes and beneficial effects to be solved more clear, the utility model is further described in detail by combining the embodiments and the drawings. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model. The following describes the technical scheme of the present utility model in detail with reference to examples and drawings, but the scope of protection is not limited thereto.
Referring to fig. 1, this embodiment proposes a 1000 kv wine glass tower with a third ground wire added by a lightning protection reinforcement measure, which includes a tower body 1, a right lower crank arm 2 above the tower body 1, a right upper crank arm 3 connected to the right lower crank arm 2, and a left lower crank arm 4 and a left upper crank arm 5 on the left side. The right upper crank arm 3 and the left upper crank arm 5 are respectively provided with a middle phase V-shaped insulator string hanging point 12. The first insulator string 14 and the second insulator string 15 hung between the two middle phase V-shaped insulator string hanging points 12 form a V-shaped insulator string with an included angle of a, and a middle phase lead 16 is arranged at the lower end of the V-shaped insulator string.
The right cross arm 23 is connected with the right upper crank arm 3, the right cross arm 23 end part is connected with a right phase I-shaped insulator string hanging point 8, the upper end of the right insulator string 7 is connected with the right phase I-shaped insulator string hanging point 8, and the lower end of the right insulator string 7 is connected with the right phase lead 6. The right ground wire bracket 18 is connected with the right cross arm 23, a right ground wire hanging point 17 is arranged at the top end of the outer side of the right ground wire bracket 18, a first ground wire 27 is connected below the right ground wire hanging point 17 through a hardware fitting 29, and the first ground wire 27 forms lightning protection for the right phase lead 6.
The left cross arm 24 is connected with the left upper crank arm 5, the end part of the left cross arm 24 is connected with a left phase I-shaped insulator string hanging point 11, the upper end of the left insulator string 10 is connected with the left phase I-shaped insulator string hanging point 11, and the lower end of the left insulator string 10 is connected with the left phase lead 9. The left ground wire bracket 20 is connected with the left cross arm 24, the top end of the outer side of the left ground wire bracket 20 is provided with a left ground wire hanging point 19, the lower part of the left ground wire hanging point 19 is connected with a second ground wire 26 through a hardware fitting 29, and the second ground wire 26 forms lightning protection for the left phase lead 9.
The upper right crank arm 3 is connected with the upper middle phase tower pane structure 25 between the upper left crank arms 5, the upper middle phase tower pane structure 25 is connected with the middle phase third ground wire support 21, the top end of the outer side of the middle phase third ground wire support 21 is provided with a ground wire hardware hanging point 22, the lower part of the ground wire hardware hanging point 22 is connected with a third ground wire 28 through a hardware 29, and the third ground wire 28 forms lightning protection on the middle phase lead 16.
Referring to fig. 1 to 8, the middle phase third ground wire holder 21 is constructed in such a manner that: firstly, determining the vertical height H1 from a ground wire fitting hanging point 22 to a right side cross arm 23 and a left side cross arm 24 and the opening width L1 of the ground wire fitting hanging point 22 along the line direction, wherein the overhanging cantilever length L2 of the ground wire fitting hanging point 22 is the same as that of the overhanging cantilever lengths of a right side ground wire hanging point 17 and a left side ground wire hanging point 19; secondly, the width L3 of the bottom of the middle phase third ground wire bracket 21 along the line direction is the same as the width of the middle phase upper tower lattice structure 25; finally, according to the above dimensions, the nodes are connected to form the outer contour of the intermediate phase third ground wire holder 21, and the cross section and the monoclinic section are arranged to form the final intermediate phase third ground wire holder 21. Thus, the third ground wire 28 suspended below the middle phase third ground wire bracket 21 forms a lightning protection for the middle phase conductor 16 below the middle phase V-shaped insulator string.
While the utility model has been described in detail in connection with specific preferred embodiments thereof, it is not to be construed as limited thereto, but rather as a result of a simple deduction or substitution by a person having ordinary skill in the art to which the utility model pertains without departing from the scope of the utility model defined by the appended claims.
Claims (2)
1. The utility model provides a transmission line tower with strengthen lightning protection performance, includes iron tower body (1), iron tower body (1) be 1000 kilovolt wineglass tower body; the two sides of the tower body (1) of the iron tower are respectively connected with a lower crank arm, and the upper part of the lower crank arm is connected with an upper crank arm; the upper crank arms on two sides are connected with cross arms, the end parts of the cross arms are connected with wires through insulator strings, the cross arms are connected with ground wire brackets, the ground wire brackets are connected with ground wires, and the ground wires and the wires form lightning protection on two sides; a middle phase upper tower pane structure (25) is connected between the upper crank arms on the two sides, a middle phase third ground wire support (21) is connected to the upper part of the middle phase upper tower pane structure (25), a third ground wire (28) is connected to the top end of the outer side of the middle phase third ground wire support (21), and the third ground wire (28) forms lightning protection for a middle phase lead (16);
A ground wire fitting hanging point (22) is arranged at the top end of the outer side of the middle phase third ground wire bracket (21), and the lower part of the ground wire fitting hanging point (22) is connected with a third ground wire (28) through a fitting (29); the connection point of the middle phase third ground wire bracket (21) and the middle phase upper tower pane structure (25) is positioned on the right side of the middle line of the iron tower body (1), and the ground wire fitting hanging point (22) is positioned on the left side of the middle line of the iron tower body (1);
The top end of the outer side of the ground wire support is provided with a ground wire hanging point, and the lower part of the ground wire hanging point is connected with a ground wire through a hardware fitting (29); the length of the overhanging cantilever of the ground wire fitting hanging point (22) is the same as that of the overhanging cantilever of the ground wire hanging point;
The upper crank arms on the two sides are provided with middle phase V-shaped insulator chain hanging points (12); a first insulator string (14) and a second insulator string (15) which are hung between two hanging points (12) of the middle-phase V-shaped insulator strings form a V-shaped insulator string with an included angle, and a middle-phase lead (16) is arranged at the lower end of the V-shaped insulator string;
The connection point of the hanging point (12) of the middle phase V-shaped insulator string and the upper crank arm is positioned below the connection point of the upper crank arm and the middle phase upper tower lattice structure (25).
2. The power transmission line tower with the enhanced lightning protection performance according to claim 1, wherein the end part of the cross arm is connected with an I-shaped insulator string hanging point, the upper end of the insulator string is connected with the I-shaped insulator string hanging point, and the lower end of the insulator string is connected with a wire.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322092167.2U CN220909291U (en) | 2023-08-04 | 2023-08-04 | Transmission line tower with strengthen lightning protection performance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322092167.2U CN220909291U (en) | 2023-08-04 | 2023-08-04 | Transmission line tower with strengthen lightning protection performance |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220909291U true CN220909291U (en) | 2024-05-07 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322092167.2U Active CN220909291U (en) | 2023-08-04 | 2023-08-04 | Transmission line tower with strengthen lightning protection performance |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220909291U (en) |
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2023
- 2023-08-04 CN CN202322092167.2U patent/CN220909291U/en active Active
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