CN201478769U - Ultrahigh voltage power transmission line connecting plate - Google Patents
Ultrahigh voltage power transmission line connecting plate Download PDFInfo
- Publication number
- CN201478769U CN201478769U CN2009201610659U CN200920161065U CN201478769U CN 201478769 U CN201478769 U CN 201478769U CN 2009201610659 U CN2009201610659 U CN 2009201610659U CN 200920161065 U CN200920161065 U CN 200920161065U CN 201478769 U CN201478769 U CN 201478769U
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- China
- Prior art keywords
- transmission line
- yoke plate
- line yoke
- power transmission
- hanging wire
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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- 230000005540 biological transmission Effects 0.000 title claims abstract description 93
- 239000012212 insulator Substances 0.000 claims abstract description 32
- 229910045601 alloy Inorganic materials 0.000 claims description 5
- 239000000956 alloy Substances 0.000 claims description 5
- 229910000746 Structural steel Inorganic materials 0.000 claims description 4
- 238000009826 distribution Methods 0.000 claims description 4
- 230000002787 reinforcement Effects 0.000 claims description 4
- 239000004020 conductor Substances 0.000 description 24
- 239000000725 suspension Substances 0.000 description 16
- 230000000694 effects Effects 0.000 description 4
- 230000005484 gravity Effects 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000000465 moulding Methods 0.000 description 3
- 241000272165 Charadriidae Species 0.000 description 2
- 238000005452 bending Methods 0.000 description 2
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 2
- 239000010931 gold Substances 0.000 description 2
- 229910052737 gold Inorganic materials 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000003014 reinforcing effect Effects 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- 229910000851 Alloy steel Inorganic materials 0.000 description 1
- 241000883966 Astrophytum capricorne Species 0.000 description 1
- 241000282326 Felis catus Species 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000003044 adaptive effect Effects 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004995 multiple fission Effects 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
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- Insulators (AREA)
- Suspension Of Electric Lines Or Cables (AREA)
Abstract
The utility model discloses a power transmission line connecting plate used for a ultrahigh voltage power transmission line applied to V-shaped insulator strings; the middle part of the power transmission line connecting plate is symmetrically and inward concaved into a slender waist shape, the upper part is of an asymmetrical shape and the lower part is of a symmetrical shape; the power transmission line connecting plate comprises eight line hanging holes and two string hanging holes, wherein the two string hanging holes are positioned at the left side and the right side of the upper part of the power transmission line connecting plate, are distributed asymmetrically and are used for connecting the V-shaped insulator strings; in the eight line hanging holes, four line hanging holes are positioned at the upper part of the power transmission line connecting plate, and the other four line hanging holes are positioned at the lower part of the power transmission line connecting plate. The ultrahigh voltage power transmission line connecting plate can meet the requirements of 8-bundled leads of the ultrahigh voltage power transmission line, guarantee that the connecting plate is not influenced by the rotating angle of the power transmission line, and has reasonable stress and beautiful shape of the power transmission line.
Description
Technical field
The utility model relates to the ultra-high-tension power transmission line technical field, more particularly, relates to a kind of UHV transmission line yoke plate.
Background technology
Yoke plate be transmission line dangle the string in important component part, usually, yoke plate has bunch-hanged hole, is used for being connected and installed in the insulator string of high-tension line tower, and, hanging wire hole on the yoke plate is equipped with suspension clamp usually, be used for each built on stilts bar transmission pressure wire harness of clamping, make each bar wire harness division be the division shape, therefore, yoke plate mainly bears the weight of vertical direction sliver line conductor and the wind-force of horizontal direction, also will bear the weight of icing winter.
When transmission line adopts the V-type insulator string, and when needing to change direction by angle tower, the force-bearing situation of the yoke plate more complicated that will become, the bunch-hanged hole that yoke plate removes the upper end is subjected to the pulling force from the exterior angle insulator string, the hanging wire hole is subjected to outside the gravity from the suspension clamp of lead and fixing cord, produce when also being subjected to the lead corner for the longitudinal unbalance tension force effect of the lateral pull of yoke plate and suspension clamp to yoke plate, because existing yoke plate is generally eel-like figure shape structure, therefore, the eel-like figure place of yoke plate will be subjected to bigger torque influence, greatly reduce the tension of yoke plate, bending resistance and anti-twisting property, thus the job stability of whole transmission line influenced.
And building 1000kV UHV transmission network has at present become the vital task that China's power industry faces.Along with the rising of transmission voltage grade, lead number and lead are outer through corresponding increase, and existing transmission line yoke plate mainly is applicable to conductors on quad bundled, six-multiple conductor, can't adapt to the requirement of 1000kV UHV transmission line eight bundle conductors.
The utility model content
In view of this, the utility model provides a kind of transmission line yoke plate, is applicable to the UHV transmission line of using the V-type insulator string.
The utility model embodiment is achieved in that
A kind of transmission line yoke plate is used to use the UHV transmission line of V-type insulator string, and the symmetrical indent in described transmission line yoke plate middle part is that eel-like figure shape, top are that asymmetric shape and bottom are symmetric shape, comprises eight hanging wire holes, two bunch-hanged holes;
Described two bunch-hanged holes are positioned at the left and right sides on transmission line yoke plate top, are asymmetric distribution, connect described V-type insulator string;
Four hanging wire holes wherein, described eight hanging wire holes are positioned at transmission line yoke plate top, and four hanging wire holes are positioned at transmission line yoke plate bottom in addition.
Preferably, described four distributed number such as hanging wire hole that are positioned at transmission line yoke plate bottom are in the center line both sides, and described four hanging wire holes that are positioned at transmission line yoke plate top are along the line along described center line, etc. distributed number in along both side described.
Preferably, distributed number such as described is that eight hanging wire holes are positioned at a round week of division, and is octagon along round week of described division and evenly distributes.
Further, described transmission line yoke plate for monolithic devices design plate.
Further, reinforcement is adopted at described transmission line yoke plate middle part, and described reinforcement is selected low-alloy high-tensile structural steel for use.
Preferably, described transmission line yoke plate bottom is a hollow structure.
Preferably, the arc radius of the symmetrical indent in described transmission line yoke plate middle part is 250mm.
Preferably, described division circular diameter is 1045mm.
Further, described transmission line yoke plate is selected low-alloy high-tensile structural steel for use.
Further, also comprise on the described transmission line yoke plate and all press shading ring installing hole and weight sheet installing hole.
Compare with prior art, the technical scheme that the utility model provides has the following advantages and characteristics:
At first, eight hanging wire hole yoke plates are applicable to the UHV transmission line that adopts eight bundle conductors; By being asymmetric proterties with the yoke plate upper design, eight hanging wire holes are designed to distribute along the octagon of division circle, after making that yoke plate connects the V-type insulator string, can balance from the pulling force of exterior angle insulator string, from the gravity of the suspension clamp of lead and fixing cord, and the lateral pull that produces during the lead corner and from the longitudinal unbalance tension force effect of suspension clamp, guarantee that yoke plate is not subjected to the influence of transmission line corner angle, stressed reasonable; The hanging wire hole that octagon is arranged makes eight bundle conductors remain octagon and arranges that transmission line is shaped attractive in appearance;
In addition, whole plate yoke plate can guarantee the raising of yoke plate bulk strength, and simple in structure, easy for installation, be convenient to operating personnel and operate.
Description of drawings
Fig. 1 is the structural representation of a kind of UHV transmission line yoke plate of the utility model;
Structured flowchart when Fig. 2 is the use of Fig. 1 transmission line yoke plate connection V-type insulator string.
Embodiment
Below in conjunction with the accompanying drawing among the utility model embodiment, the technical scheme among the utility model embodiment is clearly and completely described.
Along with scale of power is more and more huger, electric pressure is more and more higher, and the continuous increase of carrying capacitance at present, disturbs in order to reduce corona loss and corona, and for the economy and the reliability of transmission line, transmission line extensively adopts multiple fission conductor simultaneously.For extra high voltage network, for suppressing corona discharge and reducing the common a kind of wire erection mode taked of line reactance be: the per minute lead is made up of several less intraphase conductors of diameter, and each intraphase conductor keeps at a certain distance away and arranges by symmetrical polygonal.The bundle conductor number of extra high voltage network generally is to choose 3～4 single condctors through a kind of fissionable lead that certain technology is manufactured in together, and perhaps claims bundle conductor.This bundle conductor is not only different with conventional wires in form, changes because bundle conductor can make the lead surrounding magnetic field distribute, thereby has increased the lead radius equivalently, has reduced the lead reactance; Also changed simultaneously lead Electric Field Distribution on every side, made the also corresponding increase of susceptance of lead, compared with the big lead that total cross section is identical, this bundle conductor is not easy to produce corona, improves the electric energy power of sending simultaneously.
At UHV transmission line, for example the transmission line of 1000kV needs to adopt eight conductor structures that divide, and transmission line yoke plate of the present utility model is applied in the UHV transmission line of eight divisions just.With reference to figure 1, show the structural representation of a kind of transmission line yoke plate of the utility model, be used for UHV transmission line V-type insulator string, specifically comprise:
Described transmission line yoke plate 1 middle part 12 symmetrical indents are that eel-like figure shape, top 11 are that asymmetric shape and bottom 13 are symmetric shape, comprise 14, two bunch-hanged holes 15 in eight hanging wire holes;
Described two bunch-hanged holes 15 are positioned at the left and right sides on transmission line yoke plate 1 top 11, are asymmetric distribution, are used to connect V-type insulator string (not shown);
Four hanging wire holes 14 wherein, described eight hanging wire holes 14 are positioned at transmission line yoke plate 1 top 11, and other four hanging wire holes 14 are positioned at 13, eight hanging wire holes 14, transmission line yoke plate 1 bottom and are separately installed with the suspension clamp (not shown).
Corresponding eight transmission pressure wire harness are furnished with eight hanging wire holes on the yoke plate.By eight suspension clamp (not shown)s are hung over the hanging wire hole by bolt, be used for eight built on stilts transmission pressure wire harness of clamping, make each bar wire harness be the division shape, support the weight of whole circuit.Clearly as seen, four distributed number such as hanging wire hole of yoke plate bottom promptly in the center line both sides of yoke plate bottom symmetric shape, respectively are distributed with two hanging wire holes in the center line both sides from Fig. 1; Remaining four hanging wire hole is along the line along described center line, is positioned at transmission line yoke plate top, and etc. distributed number in described center line along both side.And eight hanging wire holes are positioned at a round week of division, and are octagon along round week of described division and evenly distribute.Division circular diameter in the utility model is 1045mm, and the division length of side of octagon is 400mm.Usually, 1000kV transmission line 8 bundle conductors that adopt more, excursion is 6～10 divisions, and the intraphase conductor spacing is 400～450mm, and division vary in diameter scope is 1045～1176mm.As seen, the utility model satisfies the spacing requirement of transmission line.
The transmission line yoke plate that has in the prior art adopts split type assembling form, when this split type yoke plate is subjected to influencing of extraneous factor such as wind-force when using, occur being subjected to problems such as force unbalance, bundle conductor moulding are not attractive in appearance easily, especially be applied to the little corner high-tension line tower of straight line and when transmission line adopts the V-type insulator string.The little corner high-tension line tower of straight line is used in the little corner of transmission line usually, is particularly useful for the Ping Qiu area to avoid the house barrier.Design experiences according to existing 500kV circuit, generally there are 3 °～10 °, the drift angle of 3 °～15 ° (mountain area environment) and 3 °～20 ° (level land environment), take usually 3 °～15 ° more suitable, the every V-type insulator string that extremely all adopts of the little corner high-tension line tower of straight line.At this moment, little corner appears in the bundle conductor transmission line path, the bunch-hanged hole that supports the yoke plate upper end of whole transmission line is subjected to the gravity from the suspension clamp of lead and fixing cord except being subjected to pulling force, hanging wire hole from the exterior angle insulator string, produce when also being subjected to the lead corner for the longitudinal unbalance tension force effect of the lateral pull of yoke plate and suspension clamp to yoke plate, if adopt split type yoke plate this moment, because yoke plate separates up and down, the stressed unbalanced situation of yoke plate to very easily occur, also will influence the job stability of whole transmission line when serious.Occur for fear of such problem, the utility model is designed to yoke plate whole plate, to improve the yoke plate bulk strength.In order to adapt to the special force way of the little corner high-tension line tower of straight line, and in order to satisfy the requirement of V-type insulator string leveling, with the upper design of yoke plate is asymmetric shape, adopt centering type to arrange two bunch-hanged holes, when making the stressed deflection of V-type insulator string, the locus of eight bundle conductors basic with generic linear dangle go here and there consistent.When corner appears in transmission line, can balance exterior angle insulator string, from the gravity of the suspension clamp of lead and fixing cord to the longitudinal unbalance tension force effect of active force, lateral pull and the suspension clamp of yoke plate to yoke plate, guarantee that yoke plate is not subjected to the influence of corner angle, make eight bundle conductors remain octagon and arrange that the bundle conductor moulding is attractive in appearance.Many, the complex structure of assemble products from parts when simultaneously, having improved split-type design, installation is loaded down with trivial details and be difficult for the shortcoming that operating personnel operate.For the sake of clarity, the structural representation when having provided with the use of the utility model yoke plate connection V-type insulator string, as shown in Figure 2, wherein 21 for connecting the V-type insulator strings of yoke plate bunch-hanged hole.
Bunch-hanged hole on yoke plate top can be by adding the weldering sleeve pipe, to increase the intensity of bunch-hanged hole.In addition, the angular range of V-type insulator string is generally 90 °～110 °, those skilled in the art can do adaptive adjustment with the position that is positioned at two hanging holes on yoke plate top in the utility model according to the angle of concrete V-type insulator string, and this utility model is not done concrete restriction.
Described yoke plate middle part is the eel-like figure shape, yielding arc indent by two symmetries forms, in the utility model, in order to mate the design of the division length of side and division circular diameter, the radius of making a concession arc is chosen to be 250mm, guarantee that simultaneously yoke plate has enough spaces that bunch-hanged hole, hanging wire hole and other standby holes are set, and can effectively guarantee to be fitted in the radial and axial swing of the suspension clamp on the yoke plate.For the radial design of making a concession arc, the utility model is not done concrete restriction at this, and those skilled in the art can carry out specific design according to the practical application scene.
Because the middle part of yoke plate is stressed weakness, therefore, in order to increase the mechanical strength at eel-like figure place, middle part, the utility model has been taked strengthening measure, by reinforcing rib structure is installed, improve the stressing conditions of yoke plate, strengthened tension, bending resistance and anti-twisting property greatly, strengthened the stability of whole transmission line.
In the utility model, reinforcing rib structure and yoke plate flat board all adopt the manufacturing of low-alloy high-strength steel alloy, have both improved the mechanical strength of yoke plate integral body, have alleviated weight, have saved steel, are convenient to again install and carrying, have reduced labor intensity of operating personnel.In addition, suspension clamp can adopt the aluminium alloy manufacturing, to satisfy energy-conservation and anticorona requirement.The anticorona function of suspension clamp depends primarily on the size of external structure shape and some position fillets.When actual design, can solve by the mode of analogy and test.
Simultaneously, the dull and stereotyped structure that adopts hollow of yoke plate, the hollow structure of circle, runway shape (shown among Fig. 1 16), oval or other shapes has for example effectively reduced the resistance of wind, has cushioned the torsion of wind pendulum generation.
Also comprise on the described transmission line yoke plate and all press shading ring installing hole and weight sheet installing hole; all press shading ring high-tension line to be played the protective effect that prevents corona; all press the shading ring main body to adopt the manufacturing of aluminium matter tubing, its anticorona function depends primarily on pipe diameter and geomery.In case of necessity, the weight sheet is used to carry additionally counterweight, to increase the weight of yoke plate, guarantees the steadiness of yoke plate when bad weather such as strong wind, rain or snow.
During practical application, should be noted that the whole string that dangles all need satisfy all the requirement of pressing shielding, the gold utensil that promptly all press shading ring, suspension clamp, links to each other with bundle conductor, insulator string all should have anticorona function.The voltage that the noise that suspension insulator produces, radio interference and every insulator bear all is no more than setting.Because the content that this part technology is well known to those skilled in the art, the utility model is no longer given unnecessary details herein.
Yoke plate of the present utility model is applicable to the V-type insulator string, can be applied in the little corner high-tension line tower of straight line and reach the limit phase position mutually, also can be applicable to other forms of high-tension line tower in reach the limit phase position mutually, as goat's horn tower, cat head tower etc.
As seen, the whole plate yoke plate after the above-mentioned optimization, the stressed rigidity that is is equally spaced, and running tension evenly can be delivered on the insulator string insulator string stress equalization; Good integrity has avoided split type assembling gold utensil to be subjected to force unbalance, the inaesthetic drawback of bundle conductor moulding preferably simultaneously, and is easy to install; Again because it from great, can protect insulator string and high-tension line tower better.
To the above-mentioned explanation of the disclosed embodiments, make this area professional and technical personnel can realize or use the utility model.Multiple modification to these embodiment will be conspicuous concerning those skilled in the art, and defined herein General Principle can realize under the situation that does not break away from spirit or scope of the present utility model in other embodiments.Therefore, the utility model will can not be restricted to these embodiment shown in this article, but will meet and principle disclosed herein and features of novelty the wideest corresponding to scope.
Claims (10)
1. transmission line yoke plate, be used to use the UHV transmission line of V-type insulator string, it is characterized in that, the symmetrical indent in described transmission line yoke plate middle part is that eel-like figure shape, top are that asymmetric shape and bottom are symmetric shape, comprise eight hanging wire holes, two bunch-hanged holes;
Described two bunch-hanged holes are positioned at the left and right sides on transmission line yoke plate top, are asymmetric distribution, are used to connect described V-type insulator string;
Four hanging wire holes wherein, described eight hanging wire holes are positioned at transmission line yoke plate top, and four hanging wire holes are positioned at transmission line yoke plate bottom in addition.
2. transmission line yoke plate according to claim 1, it is characterized in that, described four distributed number such as hanging wire hole of transmission line yoke plate bottom that are positioned at are in the center line both sides, described four hanging wire holes that are positioned at transmission line yoke plate top are along the line along described center line, etc. distributed number in along both side described.
3. distributed number such as transmission line yoke plate according to claim 2 is characterized in that, and is described are that eight hanging wire holes are positioned at a round week of division, and are octagon along round week of described division and evenly distribute.
4. transmission line yoke plate according to claim 1 is characterized in that, described transmission line yoke plate for monolithic devices design plate.
5. transmission line yoke plate according to claim 1 is characterized in that, reinforcement is adopted at described transmission line yoke plate middle part, and described reinforcement is selected low-alloy high-tensile structural steel for use.
6. transmission line yoke plate according to claim 1 is characterized in that, described transmission line yoke plate bottom is a hollow structure.
7. transmission line yoke plate according to claim 1 is characterized in that, the arc radius of the symmetrical indent in described transmission line yoke plate middle part is 250mm.
8. transmission line yoke plate according to claim 3 is characterized in that, described division circular diameter is 1045mm.
9. according to each described transmission line yoke plate among the claim 1-8, it is characterized in that described transmission line yoke plate is selected low-alloy high-tensile structural steel for use.
10. according to each described transmission line yoke plate among the claim 1-8, it is characterized in that, also comprise on the described transmission line yoke plate and all press shading ring installing hole and weight sheet installing hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201610659U CN201478769U (en) | 2009-06-29 | 2009-06-29 | Ultrahigh voltage power transmission line connecting plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201610659U CN201478769U (en) | 2009-06-29 | 2009-06-29 | Ultrahigh voltage power transmission line connecting plate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201478769U true CN201478769U (en) | 2010-05-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009201610659U Expired - Lifetime CN201478769U (en) | 2009-06-29 | 2009-06-29 | Ultrahigh voltage power transmission line connecting plate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201478769U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102709856A (en) * | 2012-05-21 | 2012-10-03 | 中国电力科学研究院 | Cross-shaped linking plate for ultra-high voltage (UHV) transmission line |
-
2009
- 2009-06-29 CN CN2009201610659U patent/CN201478769U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102709856A (en) * | 2012-05-21 | 2012-10-03 | 中国电力科学研究院 | Cross-shaped linking plate for ultra-high voltage (UHV) transmission line |
| CN102709856B (en) * | 2012-05-21 | 2016-01-20 | 中国电力科学研究院 | A kind of UHV transmission line cross yoke plate |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: CENTRAL SOUTHERN CHINA ELECTRIC POWER DESIGN INSTI Free format text: FORMER OWNER: CENTRAL SOUTHERN CHINA ELECTRIC POWER DESIGN INSTITUTE, CHINA POWER ENGINEERING CONSULTING GROUP COR Effective date: 20150324 |
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| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20150324 Address after: 430071 No. 668, democracy Road, Wuchang District, Hubei, Wuhan Patentee after: Co., Ltd of Central Southern China Electric Power Design Institute, China Power Engineering Consulting Group Corporation Patentee after: State Grid Corporation of China Address before: 430071 No. 668, democracy Road, Wuhan, Hubei, Wuchang Patentee before: Central Southern China Electric Power Design Institute, China Power Engineering Consulting Group Cor Patentee before: State Grid Corporation of China |
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| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20100519 |