CN218454609U - Double-loop pi-shaped connection tower for high-altitude power transmission line - Google Patents
Double-loop pi-shaped connection tower for high-altitude power transmission line Download PDFInfo
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- CN218454609U CN218454609U CN202222443370.5U CN202222443370U CN218454609U CN 218454609 U CN218454609 U CN 218454609U CN 202222443370 U CN202222443370 U CN 202222443370U CN 218454609 U CN218454609 U CN 218454609U
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Abstract
The utility model provides a two return circuit "pi" connects tower for transmission line suitable for high-altitude, relates to transmission line engineering technical field, and its structure is: the 'pi' connection tower is a strain-resistant iron tower, upper and lower layers of ground wire supports are arranged on the 'pi' connection tower in a crisscross mode, double ground wires are adopted as the ground wires, the 'pi' connection tower faces to the Z-axis direction, phase sequences from left to right are A, B and C, B-phase wires are hung on a tower body, the A-phase wires and the C-phase wires are hung on two sides of the upper side ground wire support in the X-axis direction respectively, the B-phase wires and the C-phase wires are led and connected through special 'T' connection clamps on the wires, the A-phase wires are transited to the lowest layer through the Z-axis direction ground wire supports and then are led and connected, and the wires on the two sides of the 'pi' connection tower are finally connected in a 'pi' mode in a vertical arrangement mode. The utility model has the advantages that: the utility model discloses a special "pi" connects the tower, compares in present typical transmission line "pi" and connects the scheme, has that the engineering volume is few, engineering cost is low and the circuit takes up an area of advantage such as few.
Description
Technical Field
The utility model relates to a transmission line engineering technical field especially relates to a transmission line connects tower with two return circuits "pi" suitable for high height above sea level.
Background
With the increasing demand of electric energy in China, in order to meet the demand of electricity for newly added loads, newly-built substations and transmission lines are increased continuously, and meanwhile, in view of the fact that the breadth of China is vast, energy distribution and economic development of all places are unbalanced, the country pays attention to western electric power delivery, and extra-high voltage transmission lines are continuously built, and matched power supply projects of the extra-high voltage transmission lines are implemented in succession, which means that large-scale power grid construction can be continuously carried out in a long period of time in the future, and the practicability of the transmission lines also becomes the subject of research. Therefore, the technical and economic advantages of power grid construction become key.
At present, in the practical application of power grid engineering, schemes of accessing a 'pi' open circuit to a newly-built transformer substation are continuously increased, while the traditional 'pi' open scheme at least needs 2 bases of tension towers, occupies more land and line galleries, cannot be implemented in some limited areas of power transmission corridors, only can reselect a 'pi' open point, and inevitably causes investment increase. The typical pi connection scheme has the defects of high manufacturing cost, low land utilization rate and the like, so that the design of a special tower type at the pi connection point is the key for solving the problems.
Disclosure of Invention
To prior art's not enough, the utility model provides a power transmission line connects tower type with double circuit "pi" suitable for high altitude, its structure is: the power transmission line grounding device comprises a power transmission line path, a 'pi' connection tower, a 'pi' open circuit path, a ground wire support and wire hanging points, wherein the 'pi' connection tower is a strain iron tower, the upper layer ground wire support and the lower layer ground wire support are arranged on the 'pi' connection tower in a crossed and staggered mode, the ground wires adopt double ground wires, the 'pi' connection tower faces to the Z-axis direction, phase sequences from left to right are A, B and C, the phase wires of the B phase are hung on the tower body, the phase wires of the A and the C are respectively hung on two sides of the upper side ground wire support in the X-axis direction, the phase wires of the B and the C phase are led through a special 'T' wiring clamp on the wire, the phase A is transited to the lowest layer through the ground wire support in the Z-axis direction and then led, and the wires on two sides of the 'pi' connection tower are finally led in a vertical arrangement mode.
Preferably, the pi-shaped connection tower is connected to a power transmission line path.
Preferably, the pi-junction tower is connected to the pi-open circuit path.
Preferably, a pi open circuit path is connected to the wire hanging point.
The utility model discloses a use method: the 'pi' -shaped tower-connecting type is a strain iron tower, the cross-shaped staggered arrangement of upper and lower layers of cross arms is adopted, and the ground wires adopt double ground wires so as to meet the requirements of communication and lightning protection of the current power grid engineering. The concrete circuit leading scheme of the tower type is as follows: facing to the Z-axis direction, the phase sequence from left to right is A, B and C, the B-phase lead is hung on the tower body, the A-phase lead and the C-phase lead are respectively hung on two sides of the upper side cross arm of the X-axis direction, the B-phase lead and the C-phase lead through special T-shaped jointing clamps on the leads, and the A-phase is transited to the lowest layer through the cross arm in the Z-axis direction and then is led. The wires on both sides of the tower are finally connected in a vertical arrangement in a pi mode.
The beneficial effects of the utility model reside in that: the corridor of the power transmission line can be effectively compressed when the line is connected by the 'pi', the land resource is saved, the high requirement on environmental protection is met, and the consumption of tower materials and land resources is saved compared with a typical 'pi' connection scheme. Simultaneously, this tower type has improved the utilization ratio in the transmission line space, and make full use of line corridor when satisfying the transmission capacity requirement, make full use of transmission line corridor reduces the waste of space distance in the corridor. The utility model embodies the characteristics of its advanced technique is suitable for, economical and reasonable, resource saving, the environment is good. The utility model discloses a special "pi" connects the tower, compares in present typical transmission line "pi" and connects the scheme, has that the engineering volume is few, engineering cost is low and the circuit takes up an area of advantage such as few.
Drawings
FIG. 1 is a schematic view of a "Pi" tower-connected structure of the present invention;
FIG. 2 is a schematic plan view of the "Pi" connection path of the present invention;
FIG. 3 is a schematic view of the structure of the "Pi" tower-connected wire hanging mode of the present invention;
in the figure: 1. a power transmission line path, 2, a 'pi' connection tower, 3, a 'pi' open circuit path, 4, a ground wire support, 5 and a wire hanging point.
Detailed Description
Embodiment 1, as shown in fig. 1-3, the utility model provides a power transmission line connects tower type with two return circuits "pi" suitable for high altitude, its structure is: the power transmission line comprises a power transmission line path 1, a 'pi' connection tower 2, a 'pi' open circuit path 3, a ground wire support 4 and a wire hanging point 5, wherein the 'pi' connection tower 2 is a strain iron tower, upper and lower layers of the ground wire support 4 are arranged on the 'pi' connection tower 2 in a cross-staggered mode, double ground wires are adopted as the ground wires, the 'pi' connection tower 2 faces the Z-axis direction, phase sequences from left to right are A, B and C, phase wires of the B phase are hung on a tower body, phase wires of the A and the C are hung on two sides of the upper side ground wire support 4 in the X-axis direction respectively, the phase wires of the B and the C phase wires are led through a special 'T' wiring clamp on the wire, the phase A is transited to the lowest layer through the ground wire support 4 in the Z-axis direction and then led, and the wires on two sides of the 'pi' connection tower 2 are finally led in a vertical arrangement mode.
Preferably, the pi-junction tower 2 is connected to the power transmission line path 1.
Preferably, said "pi" junction towers 2 are connected to the "pi" open circuit paths 3.
Preferably, a "pi" open circuit path 3 is connected to the wire hanging point 5.
Claims (4)
1. The utility model provides a double circuit "pi" connects tower for high-altitude transmission line, includes transmission line route (1), "pi" connects tower (2), "pi" open circuit route (3), ground wire support (4), wire hanging point (5), its characterized in that: the 'pi' connection tower (2) is a strain iron tower, an upper layer ground wire support (4) and a lower layer ground wire support (4) are arranged on the 'pi' connection tower (2) in a crossed and staggered mode, the ground wires are double ground wires, the 'pi' connection tower (2) faces the Z-axis direction, phase sequences from left to right are A, B and C, phase conductors of the B are hung on the tower body, the phase conductors of the A and C are hung on two sides of the upper side ground wire support (4) in the X-axis direction respectively, the phase conductors of the B and C are led through a special 'T' wiring clamp on the conductor, the phase A is transited to the lowest layer through the Z-axis ground wire support (4) and then led, and the conductors on two sides of the 'pi' connection tower (2) are finally led in a 'pi' connection mode in a vertical arrangement mode.
2. The double-loop pi-junction tower for high-altitude power transmission lines as claimed in claim 1, wherein: the pi-shaped connecting tower (2) is connected to the power transmission line path (1).
3. The double-loop pi-junction tower for high-altitude power transmission lines as claimed in claim 1, wherein: the pi-shaped connecting tower (2) is connected to the pi-shaped open circuit path (3).
4. The double-loop pi-junction tower for high-altitude power transmission lines as claimed in claim 1, wherein: the wire hanging point (5) is connected with a pi open circuit path (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222443370.5U CN218454609U (en) | 2022-09-15 | 2022-09-15 | Double-loop pi-shaped connection tower for high-altitude power transmission line |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222443370.5U CN218454609U (en) | 2022-09-15 | 2022-09-15 | Double-loop pi-shaped connection tower for high-altitude power transmission line |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218454609U true CN218454609U (en) | 2023-02-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222443370.5U Active CN218454609U (en) | 2022-09-15 | 2022-09-15 | Double-loop pi-shaped connection tower for high-altitude power transmission line |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218454609U (en) |
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2022
- 2022-09-15 CN CN202222443370.5U patent/CN218454609U/en active Active
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