CN202711873U - Duplex L type insulator string for +/- 500kV same tower double-circuit line - Google Patents
Duplex L type insulator string for +/- 500kV same tower double-circuit line Download PDFInfo
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- CN202711873U CN202711873U CN 201220263819 CN201220263819U CN202711873U CN 202711873 U CN202711873 U CN 202711873U CN 201220263819 CN201220263819 CN 201220263819 CN 201220263819 U CN201220263819 U CN 201220263819U CN 202711873 U CN202711873 U CN 202711873U
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Abstract
The utility model provides a duplex L type insulator string for a +/- 500kV same tower double-circuit line. The duplex L type insulator string comprises a four-split suspension association board which is provided with four wire clip connection holes which are uniformly distributed along a circumference. An outer side of a circle where the four wire clip connection holes are located on the four-split suspension association board is provided with two L string connection holes, distances between each of the two L string connection holes and a center of the circle where the four wire clip connection holes are located are equal. Suspension line clips are respectively connected with the four wire clip connection holes. Two single strings which are associated to form an L type suspension string are respectively connected with the two L string connection holes, an included angle between connecting lines is 94 degrees, and included angles between each of the connecting lines and a gravity line are 30 degrees and 64 degrees respectively. According to the duplex L type insulator string, requirements of strength, split number and split spaces for installing a four-split conducting wire are satisfied, under the condition that the weight of the conducting wire is raised, coated ice is increased and wind power in a horizontal direction is strengthened, the collision between the conducting wire and the association board can be prevented, and the collision between the line clips and the association board can be prevented too.
Description
Technical field
The utility model relates to a kind of for the electric armour clamp on the large capacity transmission circuit.
Background technology
Electric armour clamp will stand to ice on the transmission line of long-time running, the baptism of snow, storm, strong wind, sleet, icing easily cause the faults such as wire ice-shedding, phase fault, wire collision lightning conducter, so electric armour clamp must possess higher mechanical strength and enough coefficient of safetys.Suspension string is the important gold utensil in the transmission line, bear the wind-force on weight, icing weight and the horizontal direction of vertical direction wire, the suspension string of ± 500kV transmission line, mainly be applicable to conductors on quad bundled, need to guarantee sub-conductor division radical and spacing by hanging yoke plate, but existing suspension string is not considered hanging yoke plate and the suspension clamp problem that generation is collided when relative windage yaw.
Summary of the invention
That the utility model provides is a kind of ± and 500kV common-tower double-return circuit is with duplex L-type insulator string, adopt the double-linkage double-hanging-point form, by connection angle between quadripartion hanging yoke plate and the L-type suspension string being set so that unlikely collision when suspension clamp and the relative windage yaw of quadripartion hanging yoke plate.
For achieving the above object, the utility model is taked following technical scheme:
± 500kV common-tower double-return circuit duplex L-type insulator string, comprise the quadripartion hanging yoke plate, be provided with four wire clamp connecting holes that distribute along even circumferential at the quadripartion hanging yoke plate, the outside that is positioned at four wire clamp connecting hole place circles on the quadripartion hanging yoke plate is provided with two L string connecting holes, and these two L string connecting holes equate with the centre-to-centre spacing of four wire clamp connecting hole place circles, suspension clamp is connected with four wire clamp connecting holes respectively, two simply connected strings of the synthetic L-type suspension string of duplex are connected with two L string connecting holes respectively, the angle of place connecting line is 94 °, and the angle of this connecting line and line of gravity is respectively 30 °, 64 °.
The synthetic L-type suspension string of duplex adopts double-linkage double-hanging-point and shaft tower to install, and conductors on quad bundled passes respectively four suspension clamps.The synthetic L-type suspension string of duplex is 94 ° with the angle that L string connecting hole is connected the place connecting line, and the angle of this connecting line and line of gravity is respectively 30 °, 64 °, by being set, this connection angle guaranteed that the quadripartion hanging yoke plate reaches 67 ° of suspension clamp and quadripartion hanging yoke plate angles in side with the wind, 33 ° of leeward side angles, so that can not bump during the two relative windage yaw.
Two simply connected strings of the synthetic L-type suspension string of duplex include the insulator of two parallel connections, one end of every insulator all is formed by connecting by UL shape link, DB type adjustment plate, U-shaped link, EB type trunnion hanging panel successively, the other end of every insulator all is formed by connecting by the L string connecting hole of UL shape link, duplex plate, right angle link plate and quadripartion hanging yoke plate successively, wherein all is symmetrically installed with two grading rings on the duplex plate.The DB type is adjusted between plate and the U-shaped link and can also be connected by the PT link plate.Every insulator is all adjusted plate, the length of every insulator of capable of regulating with the DB type.
Suspension clamp comprises the wire clip body that is opening bag type, wire clamp pressing plate and U-shaped link plate are clipped in wire clip body inside, the wire clamp pressing plate is bolted and is pressed in wire clip body and the conglobate wire clamp outlet of shape, be provided with the preformed lines that protect in the wire clamp outlet, the bottom of U-shaped link plate is connected with the wire clip body bolt, and the top of U-shaped link plate is connected with wire clamp connecting hole bolt.
At the quadripartion hanging yoke plate heavy punch piece is installed.
The utility model has satisfied the requirement of intensity that conductors on quad bundled is installed, division quantity, heading spacing, can prevent the collision of wire and yoke plate under the condition that wire deadweight, icing, horizontal direction wind-force are strengthened, can prevent the collision of wire clamp and yoke plate again.
Description of drawings
Fig. 1 is the installation diagram of embodiment 1;
Fig. 2 is that the A of Fig. 1 is to schematic diagram;
Fig. 3 is the installation diagram of embodiment 2.
Description of reference numerals: 1-suspension clamp; The 11-wire clip body; 12-wire clamp pressing plate; 13-U type link plate; The outlet of 14-wire clamp; The preformed lines that protect of 15-; The 2-duplex is synthesized the L-type suspension string; 20-simply connected string; The 201-insulator; 202-UL shape link; The 203-DB type is adjusted plate; 204-U shape link; 205-EB type trunnion hanging panel; The 206-duplex plate; 207-right angle link plate; The 208-PT link plate; 3-quadripartion hanging yoke plate; 31-wire clamp connecting hole; 32-L goes here and there connecting hole; The 4-circle; The 5-connecting line; The 6-line of gravity; The 7-grading ring; The 8-heavy punch piece.
Embodiment
Below in conjunction with drawings and Examples the utility model content is described further.
Embodiment 1
As shown in Figure 1, the present embodiment is ± the 15mm ice formation wire of 500KV common-tower double-return DC transmission engineering is applicable to mutually inside and outside angle side and lower phase interior angle side on SZJ151, the SZJ101 with 4X400kN duplex L-type suspension insulator.This duplex L-type suspension insulator is by suspension clamp 1 and the synthetic L-type suspension string 2 of duplex and quadripartion hanging yoke plate 3 corresponding being formed by connecting.
As shown in Figure 1, 2, quadripartion hanging yoke plate 3 is provided with four wire clamp connecting holes 31 that distribute along even circumferential, the outside that is positioned at four wire clamp connecting hole 31 places circles 4 on the quadripartion hanging yoke plate 3 is provided with two L string connecting holes 32, and these two L string connecting holes 32 equate with the centre-to-centre spacing of four wire clamp connecting hole 31 places circles 4.Two simply connected strings 20 of the synthetic L-type suspension string 2 of duplex include the insulator 201 of two parallel connections, one end of every insulator 201 all is formed by connecting by UL shape link 202, DB type adjustment plate 203, U-shaped link 204, EB type trunnion hanging panel 205 successively, the other end of every insulator 201 all is formed by connecting with the L string connecting hole 32 of quadripartion hanging yoke plate 3 by UL shape link 202, duplex plate 206, right angle link plate 207 successively, wherein the angle of two L string connecting hole 32 place connecting lines 5 is 94 °, and the angle of connecting line 5 and line of gravity 6 is respectively 30 °, 64 °.On duplex plate 206, all be symmetrically installed with two grading rings 7.At quadripartion hanging yoke plate 3 heavy punch piece 8 is installed.Suspension clamp 1 comprises the wire clip body 11 that is opening bag type, wire clamp pressing plate 12 and U-shaped link plate 13 are clipped in wire clip body 11 inside, wire clamp pressing plate 12 is bolted and is pressed in wire clip body 11 and the conglobate wire clamp outlet 14 of shape, be provided with the preformed lines 15 that protect in the wire clamp outlet 14, the bottom of U-shaped link plate 13 is connected with wire clip body 11 bolts, and the top of U-shaped link plate 13 is connected with wire clamp connecting hole 31 bolts.
As shown in Figure 1, 2, two simply connected strings 20 of the synthetic L-type suspension string 2 of duplex articulate with shaft tower by the EB type trunnion hanging panel 205 of every insulator 201, form double-linkage double-hanging-point.Every insulator 201 is all adjusted plate 203, the length of every insulator of capable of regulating 201 with the DB type.Conductors on quad bundled passes respectively wire clamp outlet 14 and clamps under the interior preformed protective effect of protecting lines 15 of suspension clamp 1; conduct oneself with dignity at wire; under the wind-force effect on icing weight and the horizontal direction; because the synthetic L-type suspension string 2 of duplex is 94 ° with the angle that L string connecting hole 32 is connected place connecting line 5; and connecting line 5 is respectively 30 ° with the angle of line of gravity 6; 64 °; this connection angle has guaranteed that quadripartion hanging yoke plate 3 reaches suspension clamp 1 and 67 ° of quadripartion hanging yoke plate 3 angles in side with the wind; 33 ° of leeward side angles, so that can not bump during the two relative windage yaw.
Embodiment 2
As shown in Figure 3, the present embodiment is ± the 15mm ice formation wire of 500KV common-tower double-return DC transmission engineering is applicable to phase exterior angle side under SZJ151, the SZJ101 with 4X400kN duplex L-type suspension insulator.The present embodiment and the difference of embodiment 1 only are that the DB type is adjusted between plate 203 and the U-shaped link 204 and are connected by PT link plate 208.
Claims (5)
1. ± 500kV common-tower double-return circuit duplex L-type insulator string, it is characterized in that: comprise the quadripartion hanging yoke plate, described quadripartion hanging yoke plate is provided with four wire clamp connecting holes that distribute along even circumferential, the outside that is positioned at four wire clamp connecting hole place circles on the quadripartion hanging yoke plate is provided with two L string connecting holes, and these two L string connecting holes equate with the centre-to-centre spacing of four wire clamp connecting hole place circles, suspension clamp is connected with four wire clamp connecting holes respectively, two simply connected strings of the synthetic L-type suspension string of duplex are connected with two L string connecting holes respectively, the angle of place connecting line is 94 °, and the angle of this connecting line and line of gravity is respectively 30 °, 64 °.
2. as claimed in claim 1 ± 500kV common-tower double-return circuit is with duplex L-type insulator string, it is characterized in that: two simply connected strings of the synthetic L-type suspension string of described duplex include the insulator of two parallel connections, one end of every insulator all is formed by connecting by UL shape link, DB type adjustment plate, U-shaped link, EB type trunnion hanging panel successively, the other end of every insulator all is formed by connecting by the L string connecting hole of UL shape link, duplex plate, right angle link plate and quadripartion hanging yoke plate successively, all is symmetrically installed with two grading rings on the described duplex plate.
3. as claimed in claim 2 ± 500kV common-tower double-return circuit is characterized in that with duplex L-type insulator string: described DB type is adjusted between plate and the U-shaped link and is connected by the PT link plate.
4. as claimed in claim 1 ± 500kV common-tower double-return circuit is with duplex L-type insulator string, it is characterized in that: described suspension clamp comprises the wire clip body that is opening bag type, wire clamp pressing plate and U-shaped link plate are clipped in wire clip body inside, described wire clamp pressing plate is bolted and is pressed in wire clip body and the conglobate wire clamp outlet of shape, be provided with the preformed lines that protect in the described wire clamp outlet, the bottom of described U-shaped link plate is connected with the wire clip body bolt, and the top of U-shaped link plate is connected with wire clamp connecting hole bolt.
5. as claimed in claim 1 ± 500kV common-tower double-return circuit is characterized in that: on the described quadripartion hanging yoke plate heavy punch piece is installed with duplex L-type insulator string.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220263819 CN202711873U (en) | 2012-06-05 | 2012-06-05 | Duplex L type insulator string for +/- 500kV same tower double-circuit line |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220263819 CN202711873U (en) | 2012-06-05 | 2012-06-05 | Duplex L type insulator string for +/- 500kV same tower double-circuit line |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202711873U true CN202711873U (en) | 2013-01-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220263819 Expired - Fee Related CN202711873U (en) | 2012-06-05 | 2012-06-05 | Duplex L type insulator string for +/- 500kV same tower double-circuit line |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202711873U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102693789A (en) * | 2012-06-05 | 2012-09-26 | 中国南方电网有限责任公司超高压输电公司 | Twin L-type insulator string for +/- 500 kV double-circuit lines on same tower |
-
2012
- 2012-06-05 CN CN 201220263819 patent/CN202711873U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102693789A (en) * | 2012-06-05 | 2012-09-26 | 中国南方电网有限责任公司超高压输电公司 | Twin L-type insulator string for +/- 500 kV double-circuit lines on same tower |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130130 Termination date: 20130605 |