CN202094569U - Electrical tension tower using rigid jumper wires and stabilizing device for connecting jumper wire thereof - Google Patents
Electrical tension tower using rigid jumper wires and stabilizing device for connecting jumper wire thereof Download PDFInfo
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- CN202094569U CN202094569U CN 201020690253 CN201020690253U CN202094569U CN 202094569 U CN202094569 U CN 202094569U CN 201020690253 CN201020690253 CN 201020690253 CN 201020690253 U CN201020690253 U CN 201020690253U CN 202094569 U CN202094569 U CN 202094569U
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- jumper
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- electric power
- wire jumper
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- 230000000087 stabilizing effect Effects 0.000 title claims description 11
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 14
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 14
- 239000012212 insulator Substances 0.000 claims description 17
- 125000006850 spacer group Chemical group 0.000 abstract description 5
- 238000010276 construction Methods 0.000 abstract description 3
- 238000009434 installation Methods 0.000 abstract description 3
- 238000000034 method Methods 0.000 abstract 2
- 230000014509 gene expression Effects 0.000 description 6
- 239000004020 conductor Substances 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 238000012986 modification Methods 0.000 description 4
- 230000004048 modification Effects 0.000 description 4
- 241000282326 Felis catus Species 0.000 description 3
- 210000001503 joint Anatomy 0.000 description 3
- 238000007665 sagging Methods 0.000 description 3
- 230000001154 acute effect Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 238000002788 crimping Methods 0.000 description 2
- 230000009191 jumping Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 229910000861 Mg alloy Inorganic materials 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
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- 229910001092 metal group alloy Inorganic materials 0.000 description 1
- 230000011218 segmentation Effects 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
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Abstract
The utility model relates to an electrical tension tower using aluminum tube type rigid jumper wires. A middle section of a jumper wire string may sag during connecting process and the sag is difficult to accurately estimate, thus it is difficult to ensure that lengths of split sub-jumper wires are coordinate and consistent mutually during installing process, therefore, great inconveniences are brought to construction. The utility model provides an electrical tension tower using aluminum tube type rigid jumper wires. The electrical tension tower is characterized by comprising a cross-arm, wherein a plurality of split type jumper wires are respectively erected on two ends of the cross-arm, the plurality of split type jumper wires erected on two ends of the cross-arm are connected through rigid jumper wires, thus two sides of the electrical tension tower are electrically connected together through the plurality of split type jumper wires and the rigid jumper wires. By adopting the above technical scheme, the installation can be performed conveniently, the problem that the split sub-jumper wires of a soft squirrel-cage jumper wire are difficult to install coordinately can be solved, a better control for a safe distance of line crossing can be provided, and number of supporting spacer rods used among the jumper wires can be reduced.
Description
Technical field
The utility model relates to a kind of rigid jumper that is used in the electric power strain tower.
Background technology
A large amount of employings is squirrel-cage or cat ladder formula (rod-pulling type) wire jumper string on the southeast-Nanyang, 1000kV Shanxi-Jingmen jumping circuit of having built at present.Schematically illustrated as accompanying drawing 1, squirrel-cage wire jumper string comprises that the wire jumper 111 of many divisions (is generally 8, owing to the visual angle reason, there is shown wherein 4 in the side-looking of Fig. 1), these wire jumpers form cage type by a plurality of conductor spacer 112 each intervals, are called as squirrel-cage wire jumper string.This squirrel-cage wire jumper was ganged up pull bar 113 and was tiltedly hung on the wire jumper outside the strain insulator-string 114, formed support with this.This squirrel-cage wire jumper string is used for the both sides of electric connection electric power strain tower.
Yet, as shown in the figure, because the interlude of wire jumper string part has sagging when connecting and is difficult to accurately estimate sag.In addition, because every wire jumper 111 all is flexible and has different sags, therefore being difficult to assurance when mounted, respectively to divide the length of wire jumper 111 harmonious mutually.This has brought great inconvenience to construction.After the installation, the shaft tower outward appearance is not attractive in appearance.And cat ladder formula (rod-pulling type) wire jumper string is because stress point directly on the wire jumper outside strain clamp 114, and whole wire jumper string is very heavy, this makes the wire jumper of strain insulator-string outlet be subjected to a bigger centralized load, the unwrapping wire that has influenced whole strain section is installed (equally can't accurate Calculation unwrapping wire sag), thereby has brought certain potential safety hazard to circuit.
The utility model content
As mentioned above, need a kind of novel wire jumper to address the above problem.
According to one side of the present utility model, a kind of electric power strain tower that uses aluminum pipe formula rigid jumper is provided, it is characterized in that, comprise: cross-arm, many division formula wire jumpers are set up in the two ends of described cross-arm respectively, many division formula wire jumpers that are set up in described cross-arm two ends are connected by rigid jumper, and a plurality of division formula wire jumpers and described rigid jumper are electrically connected the both sides of described electric power strain tower.
According to one side of the present utility model, described rigid jumper is an aluminum pipe formula rigid jumper.
According to one side of the present utility model, described rigid jumper is interconnected to constitute by the many sub-wire jumpers of rigidity.
According to one side of the present utility model, grading ring is set at described many division formula wire jumpers and the interconnective position of described rigid jumper.
According to one side of the present utility model, have fluting on the periphery of described rigid jumper, described many division formula wire jumpers are connected respectively in the fluting on the described rigid jumper periphery.
According to one side of the present utility model, the number of the sub-wire jumper of described rigidity is the 2-4 root.
According to one side of the present utility model, the sub-wire jumper of described rigidity is interlaced with each other, joint is set in the staggered place guarantees firm connection between the sub-wire jumper of each rigidity.
According on the other hand of the present utility model, a kind of stabilizing arrangement for the tie jumper that uses in the electric power strain tower is provided, it is characterized in that, comprise: the wire jumper insulator string, one end hangs on the wire jumper cross-arm of electric power strain tower, the other end has line grabs, and described line is caught the tie jumper of sag.
According to one side of the present utility model, described wire jumper insulator string is perpendicular to horizontal direction.
According to one side of the present utility model, described wire jumper insulator string becomes 0-15 ° of angle with vertical direction.
According to one side of the present utility model, described tie jumper is a squirrel-cage oidiospore wire jumper.
According to one side of the present utility model, described tie jumper is a rigid jumper.
According to one side of the present utility model, an end of described wire jumper insulator string hangs over a side end of the close described electric power strain tower of described wire jumper cross-arm.
As mentioned above, inventor of the present utility model has creatively proposed a kind of aluminum pipe formula rigid jumper.In conjunction with engineering experience in the past, aluminum pipe formula rigid jumper can solve the shortcoming of above-mentioned two kinds of serial types.This aluminum pipe formula rigid jumper is attractive in appearance than squirrel-cage wire jumper string in appearance, the construction and installation facility; Do not influence simultaneously the sag characteristic of whole strain section, help the safe distance of control circuit scissors crossing, reduce since string heavily to the damage of wire jumper (gold utensil).Satisfy the requirement of 1000kV extra high voltage line electric clearance, electromagnetic environment requirement simultaneously.Guarantee the better operation of 1000kV jumping circuit.
Description of drawings
Below with reference to accompanying drawing the utility model is described, yet, should be appreciated that appended accompanying drawing only is that schematically each parts in the accompanying drawing are not to draw in proportion.Identical in the accompanying drawings Reference numeral is represented identical parts, wherein:
Fig. 1 schematically shows the schematic diagram according to the squirrel-cage wire jumper string of prior art and cat ladder formula (rod-pulling type) wire jumper string;
Fig. 2 A-2C schematically shows the schematic diagram according to the aluminum pipe formula rigid jumper of an embodiment of the present utility model; And
Fig. 3 schematically shows the stabilizing arrangement for the tie jumper that uses in the electric power strain tower according to another embodiment of the present utility model.
Embodiment
To describe preferred embodiment of the present utility model at this, please refer to the diagram of enclosing.In the appended diagram of the utility model, identical reference number is promptly represented identical structural element.
Shown in Fig. 2 A-2C, Reference numeral 212 expression grading rings, Reference numeral 213 expression conductor spacers, Reference numeral 214 expression rigid jumpers, Reference numeral 2141 and the sub-wire jumper of 2142 expressions, Reference numeral 215 expression joints, Reference numeral 216 expressions are support stick at interval.For the purpose of concise and to the point, structure and annexation with each parts that the utlity model has close relation have only been described, then give concise and to the point description or the descriptions thereof are omitted for miscellaneous part.
Among the embodiment shown in Fig. 2 A, adopted rigid jumper 214 to replace the squirrel-cage wire jumper.Shown in accompanying drawing 2A, on the cross-arm of both sides, use substantially the same division formula wire jumper, many division formula wire jumpers that are set up in described cross-arm two ends are connected by the rigid jumper between the two 214.Can adopt variety of way will divide the formula wire jumper and be connected to rigid jumper 214.For example, can slot equably, with each the root crimping in the division formula wire jumper or be welded to fluting on this rigid jumper periphery in the periphery of rigid jumper 214.In another embodiment, can adopt the mode of welding will divide the formula wire jumper and be connected to rigid jumper.In going back an embodiment, four column caps of lateral direction welding of every rigid jumper end utilize four column caps to connect 4 oidiospore wire jumpers respectively, and two aluminum pipes connect 8 root wire jumpers altogether, the column cap end is a hollow cylinder, can utilize special equipment (for example press-connection machine) that each wire jumper crimping is fixed.
In one embodiment, owing to exist rigid jumper to be connected, may cause the change in voltage of junction, therefore with the end that divides between the formula wire jumper, adopt grading ring 212 to connect rigid jumper and division formula wire jumper in the junction, make that the voltage between the two is substantially the same.Ultra high voltage for the 1000kV grade is used, and grading ring is important.
Accompanying drawing 2B shows the partial enlarged drawing of rigid jumper.Accompanying drawing 2C shows the enlarged drawing of looking from the B direction of accompanying drawing 2B.Fig. 2 B and 2C schematically show rigid jumper and divide being connected between the formula wire jumper.In accompanying drawing 2C, conductor spacer 213 is used to support division formula wire jumper, and auxiliary will divide wire jumper and rigid jumper interconnects.In one embodiment, two rigid jumpers 214 have been used.Shown in Fig. 2 B, between two rigid jumpers, adopt at interval support stick 216 with its spaced apart predetermined distance to guarantee electrical communications.Because the length of wire jumper may be very long.If use single rigid jumper to cross over whole electric power strain tower, then may cause rigid jumper because the weight of self is sagging, make electric transmission performance change.Therefore, preferred, each root rigid jumper can be made of the sub-wire jumper of a plurality of segmentations.For example, shown in Fig. 2 B, rigid jumper 214 is made of sub-wire jumper 2141 and 2142. Sub-wire jumper 2141 and 2142 is interlaced, and the firm connection that guarantees between each sub-wire jumper by a plurality of joint/anchor clamps 215 in the staggered place.Those skilled in the art can adopt other various suitable modes to guarantee firm connection between each minute cross-talk wire jumper.In addition, according to the requirement of the size and the electric power transfer of electric power strain tower, can adopt the branch cross-talk wire jumper of other numbers, for example, a rigid jumper divides the cross-talk wire jumper to constitute by the 2-4 section.
Do not limit the length of each cross-talk wire jumper herein.For example, in one embodiment, can adopt two root wire jumpers (for example sub-wire jumper 2141 is 7 meters, and the length of another sub-wire jumper 2142 is 9 meters) butt joint.In another embodiment, can adopt two 9 meters sub-wire jumper butt joint.
In one embodiment, can use the rigid jumper of aluminum pipe formula.Should be appreciated that, can adopt other the various materials and the rigid jumper of shape.Owing to need to dangle herein, it is preferred therefore using the metal of lightweight or its alloy.In one embodiment, can also adopt the material of the good light metal alloys of electric conductivity as rigid jumper, for example, magnesium alloy.In addition, the shape of cross section of rigid jumper is not must be hollow tubular type yet, and can adopt other form.
Owing to adopted rigid jumper, can install easily.Can design the rigid jumper of various models in advance easily for the electric power strain tower of various sizes, each the oidiospore wire jumper that has solved flexible squirrel-cage wire jumper is difficult to the problem coordinating to install.In addition, use rigid jumper very little, help the safe distance of control circuit scissors crossing for the sag properties influence of whole strain section.At last, use rigid jumper of the present utility model, can reduce and in the middle of wire jumper, use the number that supports conductor spacer, thereby reduce cost.
Below tell about second embodiment of the present utility model.
As is known to the person skilled in the art, when transferring electric power, the voltage that carries on the wire jumper may be very high, and be used for the length of the rigid jumper (rigidity aluminum pipe) of transferring electric power or flexible wire jumper (squirrel-cage division formula wire jumper string) may be longer, himself quality may be very big.After installing, above-mentioned rigid jumper or flexible wire jumper can certain sag occur owing to the weight of self.In engineering, need to consider such sag.This be because, for example, on the differing heights of electric power strain tower, can have a plurality of cross-arms, if sag when excessive, may cause the scissors crossing of the wire jumper that sets up on the cross-arm of differing heights, this has brought great hidden danger to safety.
Get back to accompanying drawing 1 and accompanying drawing 2A, in above-mentioned accompanying drawing, adopted pull bar 113 to stablize wire jumper as can be seen.With accompanying drawing 2A is example, and the wire jumper of pull bar 113 outside strain clamp 114 is connected to the rigid jumper (among Fig. 1 for flexible wire jumper) of sag, applies pulling force with this wire jumper to sag, controls and guarantees that wire jumper is unlikely to excessive sag.
Yet although adopted pull bar 113 to be used to apply pulling force, the wire jumper sole mass that is used for transferring electric power may be very big, and this makes its wire jumper that applies the strain insulator-string exit of pulling force is subjected to a bigger concentrfated load.When pull bar 113 hangs on the wire jumper in strain insulator-string exit, under for example owing to boisterous influences such as strong wind, the sag of transmission line still might have greatly changed, and might make adjacent wire jumper be in contact with one another or scissors crossing, and then influences the stability and the fail safe of electric power transfer.For this reason, need the stabilizing measures of wire jumper be improved.
As what above analyzed, the pull bar of prior art hangs on the outer wire jumper of strain clamp.Wire jumper self is flexible, and therefore, the deformation meeting when the outer wire jumper of strain clamp is subjected to external force brings very big difficulty for accurate Calculation unwrapping wire sag.To this, the inventor has proposed technical scheme as shown in Figure 3.As shown in the figure,, utilize wire jumper insulator string 311 to be hung on the wire jumper cross-arm 313 of strain tower, bear pulling force for wire jumper by the wire jumper cross-arm 313 of rigidity according to the utility model.In one embodiment, wire jumper insulator string 311 is mounted on the end of wire jumper cross-arm near tower one side.Because wire jumper cross-arm 313 is rigidity, therefore, when wire jumper being hung on the wire jumper cross-arm 313, can more easily calculate the sag of wire jumper with respect to wire jumper being hung on the outer flexible wire jumper of strain insulator-string.
Should be pointed out that second embodiment of the present utility model can be applied to flexible squirrel-cage division formula wire jumper, also can be applied to the aluminum pipe formula wire jumper of rigidity.
More specifically, see also accompanying drawing 3, wire jumper insulator string 311 has line and grabs 312, and it can " grab " many flexible division formula wire jumpers, perhaps can " grab " firmly rigidity aluminum pipe.Wire jumper insulator string 311 has the structure of well known to a person skilled in the art.In addition, after having read instruction herein, those skilled in the art can expect easily that the device of other replacements is used to replace wire jumper insulator string 311 herein.For example, can adopt push-and-pull rod and the combination that is respectively applied for wire jumper, cross-arm stationary device.
On the other hand, as shown in Figure 3, in one embodiment, wire jumper insulator string 311 has the acute angle angle theta with vertical direction.Be appreciated that when wire jumper insulator string 311 and vertical direction have the acute angle angle theta this is because if adopt the wire jumper insulator string of vertical direction, then for very long wire jumper, two distances between socketing a little are more approaching.This can make both sides still have very long wire jumper part not socketed, and might cause two wire jumper parts between socketing a little protruding, and two wire jumper parts that socket a both sides is sagging, and whole wire jumper has partly formed arch.If adopt certain angle from vertical direction, then can be so that two socket and a little are separated from each other farther distance, make the stressed more even of whole wire jumper, the degree of the change of hanging down is littler.In one embodiment, the scope of angle theta can be 0-15 °.In other words, in an embodiment of the present utility model, wire jumper insulator string 311 is can horizontal direction vertical.
Although described the utility model, should be appreciated that embodiment is exemplary, and scope of the present utility model is not limited to these embodiment with reference to specific embodiment.To the multiple modification of the foregoing description, modification, additional and to improve all be possible.Should expect these modification, modification, additional and improve and drop on as in the specifically described scope of the present utility model of following claim.
Claims (13)
1. an electric power strain tower that uses rigid jumper is characterized in that, comprising:
Cross-arm,
Many division formula wire jumpers are set up in the two ends of described cross-arm respectively,
Many division formula wire jumpers that are set up in described cross-arm two ends are connected by rigid jumper, and a plurality of division formula wire jumpers and described rigid jumper are electrically connected the both sides of described electric power strain tower.
2. electric power strain tower according to claim 1 is characterized in that, described rigid jumper is an aluminum pipe formula rigid jumper.
3. electric power strain tower according to claim 1 and 2 is characterized in that, described rigid jumper is interconnected to constitute by the many sub-wire jumpers of rigidity.
4. electric power strain tower according to claim 3 is characterized in that, the number of the sub-wire jumper of described rigidity is the 2-4 root.
5. electric power strain tower according to claim 1 is characterized in that, has fluting on the periphery of described rigid jumper, and described many division formula wire jumpers are connected respectively in the fluting on the described rigid jumper periphery.
6. electric power strain tower according to claim 1 and 2 is characterized in that, at described many division formula wire jumpers and the interconnective position of described rigid jumper grading ring is set.
7. electric power strain tower according to claim 3 is characterized in that the sub-wire jumper of described rigidity is interlaced with each other, joint is set in the staggered place guarantees firm connection between the sub-wire jumper of each rigidity.
8. the stabilizing arrangement for the tie jumper that uses in the electric power strain tower is characterized in that, comprising:
Wire jumper insulator string, an end hang on the wire jumper cross-arm of electric power strain tower, and the other end has line grabs, and described line is caught the tie jumper of sag.
9. stabilizing arrangement according to Claim 8 is characterized in that, described wire jumper insulator string is perpendicular to horizontal direction.
10. stabilizing arrangement according to Claim 8 is characterized in that, described wire jumper insulator string becomes 0-15 ° of angle with vertical direction.
11. stabilizing arrangement according to Claim 8 is characterized in that, described tie jumper is a squirrel-cage oidiospore wire jumper.
12. stabilizing arrangement according to Claim 8 is characterized in that, described tie jumper is a rigid jumper.
13. stabilizing arrangement according to Claim 8 is characterized in that, an end of described wire jumper insulator string hangs over a side end of the close described electric power strain tower of described wire jumper cross-arm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201020690253 CN202094569U (en) | 2010-12-30 | 2010-12-30 | Electrical tension tower using rigid jumper wires and stabilizing device for connecting jumper wire thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201020690253 CN202094569U (en) | 2010-12-30 | 2010-12-30 | Electrical tension tower using rigid jumper wires and stabilizing device for connecting jumper wire thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202094569U true CN202094569U (en) | 2011-12-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201020690253 Expired - Lifetime CN202094569U (en) | 2010-12-30 | 2010-12-30 | Electrical tension tower using rigid jumper wires and stabilizing device for connecting jumper wire thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202094569U (en) |
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2010
- 2010-12-30 CN CN 201020690253 patent/CN202094569U/en not_active Expired - Lifetime
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 100031 Xicheng District West Chang'an Avenue, No. 86, Beijing Patentee after: State Grid Corporation of China Patentee after: CHINA POWER ENGINEERING CONSULTING (GROUP) CORPORATION Patentee after: Co., Ltd of Huabei Power Design Inst., China Power Engineering Consulting Group Patentee after: Co., Ltd of Northeastern Electric Power Design Institute, China Power Engineering Consulting Group Corporation Patentee after: Co., Ltd of Central Southern China Electric Power Design Institute, China Power Engineering Consulting Group Corporation Patentee after: Northwest Electric Power Design Institute, China Power Engineering Consulting Group Corporation Patentee after: China Power Engineering Consulting Group Southwest Electric Power Design Institute Co., Ltd. Patentee after: NORTH CHINA POWER ENGINEERING CO., LTD. OF CHINA POWER ENGINEERING CONSULTING GROUP Address before: 100031 Xicheng District West Chang'an Avenue, No. 86, Beijing Patentee before: State Grid Corporation of China Patentee before: China Power Engineering Consulting Group Corporation Patentee before: Huabei Power Design Inst., China Power Engineering Consulting Group Patentee before: Northeastern Electric Power Design Institute, China Power Engineering Consulting Group Corporation Patentee before: Central Southern China Electric Power Design Institute, China Power Engineering Consulting Group Cor Patentee before: Northwest Electric Power Design Institute, China Power Engineering Consulting Group Corporation Patentee before: Southwest Electric Power Design Institute of China Power Engineering Consulting Group Corporation Patentee before: North China Electric Power Design Institute of China Power Engineering Consulting Group Corporation |
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| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20111228 |