CN217949929U - Pi-connection comb type strain tower of single-circuit line - Google Patents
Pi-connection comb type strain tower of single-circuit line Download PDFInfo
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- CN217949929U CN217949929U CN202221944291.6U CN202221944291U CN217949929U CN 217949929 U CN217949929 U CN 217949929U CN 202221944291 U CN202221944291 U CN 202221944291U CN 217949929 U CN217949929 U CN 217949929U
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Abstract
Single return circuit pi connects comb type strain insulator tower, including tower head and body of the tower, the tower head includes upper portion tower head and middle part tower head, upper portion tower head is equipped with ground wire cross arm, upper circuit three-phase wire cross arm, middle part tower head is equipped with return circuit three-phase wire cross arm down, ground wire cross arm, upper circuit three-phase wire cross arm and lower circuit three-phase wire cross arm 7 layers of cross arms altogether all arrange perpendicularly in one side of shaft tower. The utility model discloses only realize single return circuit line pi with a basic strain insulator tower and connect, the occasion advantage of selecting the difficulty at pi contact tower position is obvious, has good social and economic benefits.
Description
Technical Field
The utility model relates to a high-voltage tower field especially relates to single circuit line pi connects comb type strain insulator tower.
Background
With the rapid development of social economy, the corridor of the power transmission line is increasingly tense, the occupied area of the iron tower can be effectively reduced by adopting a base tower to realize the pi connection of a single-circuit line, and the method has good economic benefit and social benefit in the area with the limited local tower position of the power transmission line. For the pi connection of a single-circuit transmission line, a common method is to select two pi connection tower positions, transfer one side of a line to be subjected to pi connection to a transformer substation to be accessed through one basic pi connection tower, and transfer the other side of the line to be subjected to pi connection to the transformer substation to be accessed through the other basic pi connection tower.
Disclosure of Invention
The utility model aims to solve the technical problem that, overcome prior art not enough, provide one kind and adopt a basic pole tower can realize that the pi of single circuit connects strain insulator tower.
The utility model provides a technical scheme that its technical problem adopted is, single return circuit pi connects comb type strain insulator tower, including tower head and body of the tower, the tower head includes upper portion tower head and middle part tower head, upper portion tower head is equipped with the ground wire cross arm, goes up return circuit three-phase wire cross arm, middle part tower head is equipped with return circuit three-phase wire cross arm down, ground wire cross arm, go up return circuit three-phase wire cross arm and return circuit three-phase wire cross arm 7 layers of cross arms altogether all arrange perpendicularly in one side of shaft tower down.
Furthermore, the ground wire cross arm is arranged at the top of the upper tower head, the small-size side and the large-size side of the ground wire cross arm are respectively provided with a ground wire hanging point for hanging two ground wires of a pi-connection line, and the end part of the ground wire cross arm is also provided with 2 ground wire hanging points for hanging two ground wires of a pi-in line and a pi-out line.
Furthermore, the upper loop wire cross arm is provided with three layers, and comprises an upper phase wire cross arm, a middle phase wire cross arm and a lower phase wire cross arm, wherein the small side of each of the upper phase wire cross arm, the middle phase wire cross arm and the lower phase wire cross arm is provided with a wire strain hanging point for hanging the three-phase wire on the small side of the pi junction circuit, and the end parts of the upper phase wire cross arm, the middle phase wire cross arm and the lower phase wire cross arm are provided with wire strain hanging points for hanging the three-phase wire of the pi outlet circuit.
And furthermore, the lower loop wire cross arm is provided with three layers comprising an upper phase wire cross arm, a middle phase wire cross arm and a lower phase wire cross arm, wherein wire tension resisting hanging points are arranged on the large-size sides of the upper phase wire cross arm, the middle phase wire cross arm and the lower phase wire cross arm and are used for hanging three-phase wires on the large-size side of the pi-junction circuit, and wire tension resisting hanging points are arranged at the end parts of the upper phase wire cross arm, the middle phase wire cross arm and the lower phase wire cross arm and are used for hanging three-phase wires of the pi-junction circuit.
Furthermore, pi wiring circuits hung on the small-scale sides of the upper phase, middle phase and lower phase conductor cross arms of the upper loop and pi outgoing circuits hung on the end parts of the upper phase, middle phase and lower phase conductor cross arms of the upper loop are directly jumped through flexible conductors, and pi wiring circuits hung on the large-scale sides of the upper phase, middle phase and lower phase conductor cross arms of the lower loop and pi incoming circuits hung on the end parts of the upper phase, middle phase and lower phase conductor cross arms of the lower loop are directly jumped through flexible conductors.
Furthermore, the material of strain insulator tower is the angle steel.
The utility model has the advantages of following positive effect only needs to adopt a basic strain insulator tower, can realize that single circuit line pi connects, and the occasion advantage of selecting the difficulty at pi contact tower position is obvious, has good social and economic benefits.
Drawings
Fig. 1 is a front view of an embodiment of the present invention;
FIG. 2 is a diagram illustrating the upper loop conductor jumping-through in the embodiment of FIG. 1;
FIG. 3 is a diagram illustrating the tripping of the lower loop conductor in the embodiment of FIG. 1;
fig. 4 is a schematic diagram of the ground wire hanging in the embodiment shown in fig. 1.
In the figure: i, an upper tower head, 1, a ground wire cross arm, 1-1, a first ground wire hanging point, 1-2, a second ground wire hanging point and 1-3, a third ground wire hanging point; 2-upper loop upper phase conductor cross arm, 2-1-pi wiring circuit small size side upper phase conductor hanging point, 2-pi outgoing line side upper phase conductor hanging point, 3-upper loop middle phase conductor cross arm, 3-1-pi wiring circuit small size side middle phase conductor hanging point, 3-2-pi outgoing line side middle phase conductor hanging point, 4-upper loop lower phase conductor cross arm, 4-1-pi wiring circuit small size side lower phase conductor hanging point, 4-2-pi outgoing line side lower phase conductor hanging point, II-middle tower head, 5-lower loop upper phase conductor cross arm, 5-1-pi wiring circuit large size side upper phase conductor hanging point, 5-2-pi incoming line side upper phase conductor hanging point, 6-lower loop middle phase conductor cross arm, 6-1-pi wiring circuit large size side middle phase conductor hanging point, 6-2-pi incoming line side middle phase conductor hanging point, 7-lower loop lower phase conductor cross arm, 7-1-pi wiring circuit large size side lower phase conductor hanging point, 7-2-pi outgoing line large size side lower phase conductor hanging point, 7-2-pi outgoing line tower.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples.
Referring to fig. 1-4, the present embodiment includes a tower head and a tower body iii, the tower head includes an upper tower head I and a middle tower head ii,
the tower head comprises an upper tower head I and a middle tower head II, the tower head I comprises a ground wire cross arm 1, an upper loop upper phase cross arm 2, an upper loop middle phase cross arm 3 and an upper loop lower phase cross arm 4, and the tower head II comprises a lower loop upper phase cross arm 5, a lower loop middle phase cross arm 6 and a lower loop lower phase cross arm 7. The ground wire cross arm 1, the upper loop upper phase cross arm 2, the upper loop middle phase cross arm 3, the upper loop lower phase cross arm 4, the lower loop upper phase cross arm 5, the lower loop middle phase cross arm 6 and the lower loop lower phase cross arm 7 are vertically arranged on one side of the tower head, and the whole tower head is in a comb shape.
The ground wire cross arm 1 is arranged at the top of the upper tower head I, a first ground wire hanging point 1-1 and a second ground wire hanging point 1-2 are respectively arranged on the small-size side and the large-size side (the small-size side and the large-size side are general names in the industry and are used for numbering a plurality of iron towers which are sequentially connected, the iron tower with the small number is the small-size side, and the iron tower with the large number is the large-size side) of the ground wire cross arm 1, the first ground wire hanging point 1-1 and the second ground wire hanging point 1-2 are used for hanging two ground wires on the small-size side and the large-size side of a pi wiring line, and the third ground wire hanging point 1-3 (the number of the hanging points is 2) are arranged at the end of the ground wire cross arm 1 and are used for hanging two ground wires of the pi incoming line and the pi outgoing line, as shown in figure 4.
The upper loop wire cross arm of the upper tower head I is provided with three layers, including an upper phase wire cross arm 2, a middle phase wire cross arm 3 and a lower phase wire cross arm 4; the small-size side of an upper phase lead cross arm 2 is provided with an upper phase lead tension hanging point 2-1 on the small-size side of a pi wiring circuit, the end part of the upper phase lead cross arm 2 is provided with an upper phase lead hanging point 2-2 of a pi line, the upper phase lead of the small-size side of the pi wiring circuit is directly jumped through an upper phase lead of the pi line by a flexible lead, the small-size side of a middle phase lead cross arm 3 is provided with a middle phase lead tension hanging point 3-1 on the small-size side of the pi line, the end part of the middle phase lead cross arm 3 is provided with a middle phase lead hanging point 3-2 of the pi line, the middle phase lead of the small-size side of the pi line is directly jumped through a middle phase lead of the pi line by a flexible lead, the small-size side lower phase lead hanging point 4-1 of the pi line is provided with a lower phase lead hanging point 4-2 of the pi line, and the lower phase lead of the small-size side of the pi line is directly jumped through a flexible lead as shown in figure 2.
The lower loop wire cross arm of the middle tower head II is provided with three layers, and comprises an upper phase wire cross arm 5, a middle phase wire cross arm 6 and a lower phase wire cross arm 7; the large-size side of an upper phase lead cross arm 5 is provided with a pi-connection line large-size side upper phase lead tension hanging point 5-1, the end part of the upper phase lead cross arm 5 is provided with a pi-connection line upper phase lead hanging point 5-2, the large-size side upper phase lead of the pi-connection line is directly jumped through an upper phase lead of the pi-connection line through a flexible lead, the large-size side of a middle phase lead cross arm 6 is provided with a pi-connection line large-size side middle phase lead tension hanging point 6-1, the end part of the middle phase lead cross arm 6 is provided with a pi-connection line middle phase lead hanging point 6-2, the large-size side middle phase lead of the pi-connection line is directly jumped through a middle phase lead of the pi-connection line through a flexible lead, the small-size side of a lower phase lead tension hanging point 7-1 of the pi-connection line large-size side lower phase lead hanging point 7-2 is arranged at the end part of a lower phase lead cross arm 7, and the large-size side lower phase lead of the pi-connection line is directly jumped through a flexible lead as shown in figure 3.
The tension tower is made of angle steel.
The utility model has the advantages of following positive effect only needs to use a basic strain insulator tower to realize that single circuit line pi connects, and the occasion advantage of selecting the difficulty at pi contact tower position is obvious, has good social and economic benefits.
Various modifications and variations of the present invention may be made by those skilled in the art, and they are still within the scope of the present invention, provided they are within the scope of the claims and their equivalents.
What is not described in detail in the specification is prior art that is well known to those skilled in the art.
Claims (6)
1. Single circuit line pi connects comb type strain insulator tower, its characterized in that: including tower head and body of a tower, the tower head includes upper portion tower head and middle part tower head, upper portion tower head is equipped with ground wire cross arm, goes up return circuit three-phase wire cross arm, middle part tower head is equipped with return circuit three-phase wire cross arm down, ground wire cross arm, go up return circuit three-phase wire cross arm and return circuit three-phase wire cross arm 7 layers of cross arms altogether all arrange one side at the shaft tower perpendicularly down.
2. The single circuit line pi connects comb type strain insulator tower of claim 1, characterized in that: the ground wire cross arm is arranged at the top of the upper tower head, the small-size side and the large-size side of the ground wire cross arm are respectively provided with a ground wire hanging point for hanging two ground wires of a pi-connection line, and the end part of the ground wire cross arm is also provided with 2 ground wire hanging points for hanging two ground wires of a pi-in line and a pi-out line.
3. The single-circuit line pi-connection comb-type strain tower according to claim 1 or 2, wherein: the upper loop wire cross arm is provided with three layers, and comprises an upper phase wire cross arm, a middle phase wire cross arm and a lower phase wire cross arm, wherein wire tension resistant hanging points are arranged on the small side of each of the upper phase wire cross arm, the middle phase wire cross arm and the lower phase wire cross arm and are used for hanging three-phase wires on the small side of a pi-junction circuit, and wire tension resistant hanging points are arranged at the end parts of each of the upper phase wire cross arm, the middle phase wire cross arm and the lower phase wire cross arm and are used for hanging three-phase wires of the pi-junction circuit.
4. The single circuit line pi connects comb type strain insulator tower of claim 3, characterized by: the lower loop wire cross arm is provided with three layers, and comprises an upper phase wire cross arm, a middle phase wire cross arm and a lower phase wire cross arm, wherein wire strain hanging points are arranged on the large-size sides of the upper phase wire cross arm, the middle phase wire cross arm and the lower phase wire cross arm and used for hanging three-phase wires on the large-size side of the pi-junction circuit, and the wire strain hanging points are arranged at the end parts of the upper phase wire cross arm, the middle phase wire cross arm and the lower phase wire cross arm and used for hanging three-phase wires of the pi-junction circuit.
5. The single circuit line pi connects comb type strain tower of claim 4, characterized in that: the pi wiring circuits hung on the small-size sides of the upper phase, middle phase and lower phase conductor cross arms of the upper loop and the pi outgoing circuits hung on the end parts of the upper phase, middle phase and lower phase conductor cross arms of the upper loop are directly jumped through flexible conductors, and the pi wiring circuits hung on the large-size sides of the upper phase, middle phase and lower phase conductor cross arms of the lower loop and the pi incoming circuits hung on the end parts of the upper phase, middle phase and lower phase conductor cross arms of the lower loop are directly jumped through flexible conductors.
6. The single-circuit line pi-connection comb-type strain tower according to claim 1 or 2, wherein: the tension tower is made of angle steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221944291.6U CN217949929U (en) | 2022-07-25 | 2022-07-25 | Pi-connection comb type strain tower of single-circuit line |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221944291.6U CN217949929U (en) | 2022-07-25 | 2022-07-25 | Pi-connection comb type strain tower of single-circuit line |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217949929U true CN217949929U (en) | 2022-12-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221944291.6U Active CN217949929U (en) | 2022-07-25 | 2022-07-25 | Pi-connection comb type strain tower of single-circuit line |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217949929U (en) |
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2022
- 2022-07-25 CN CN202221944291.6U patent/CN217949929U/en active Active
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