CN204552239U - Exchange 500 KV transmission line steel towers - Google Patents
Exchange 500 KV transmission line steel towers Download PDFInfo
- Publication number
- CN204552239U CN204552239U CN201520206129.8U CN201520206129U CN204552239U CN 204552239 U CN204552239 U CN 204552239U CN 201520206129 U CN201520206129 U CN 201520206129U CN 204552239 U CN204552239 U CN 204552239U
- Authority
- CN
- China
- Prior art keywords
- lightning
- transmission line
- lightning conducter
- arm
- cross
- 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.)
- Withdrawn - After Issue
Links
- 230000005540 biological transmission Effects 0.000 title claims abstract description 36
- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 18
- 239000010959 steel Substances 0.000 title claims abstract description 18
- 239000012212 insulator Substances 0.000 claims abstract description 20
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 claims abstract description 18
- 239000010931 gold Substances 0.000 claims abstract description 18
- 229910052737 gold Inorganic materials 0.000 claims abstract description 18
- 239000004020 conductor Substances 0.000 claims abstract description 11
- 230000005611 electricity Effects 0.000 abstract description 17
- 230000000694 effects Effects 0.000 abstract description 10
- 230000007547 defect Effects 0.000 abstract description 6
- 208000025274 Lightning injury Diseases 0.000 abstract description 5
- 238000009434 installation Methods 0.000 abstract description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000009466 transformation Effects 0.000 description 2
- 241000557133 Hunnemannia fumariifolia Species 0.000 description 1
- 239000004411 aluminium Substances 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
- 238000005516 engineering process Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012876 topography Methods 0.000 description 1
- 239000005341 toughened glass Substances 0.000 description 1
Landscapes
- Suspension Of Electric Lines Or Cables (AREA)
Abstract
The utility model discloses a kind of interchange 500 KV transmission line steel towers, comprise the cross-arm on tower body and its top, the two ends, downside of cross-arm and middle part are connected to insulator, phase conductor during the insulator lower end difference fillet phase conductor at two ends, middle insulator lower end connect.The two ends, upside of cross-arm are symmetrically connected with lightning conducter support, lightning conducter support are connected to some lightning conducters and connect gold utensil.Can according to the actual change of lightening activity around steel tower and lightning parameter situation after transmission line of electricity puts into operation; the change installation site of lightning conducter on lightning conducter support realizes the flexible adjustment to earth-wire protection angle; to obtain the shielding protection effect of lightning conducter to wire the best; effectively reduce transmission line lightning stroke tripping operation number of times; realize differentiated lightning protection, avoiding earth-wire protection angle on prior art transmission line of electricity is the defect of a fixed value.It also avoid the tower head investment for trnasforming urban land of prior art and the defect of loss of outage simultaneously.
Description
Technical field
The utility model relates to a kind of interchange 500 KV transmission lines, is specifically related to the method at a kind of interchange 500 KV transmission line steel towers and adjustment earth-wire protection angle thereof.
Background technology
Rapidly, electrical network overlay area is more and more wider, and a lot of transmission line of electricity will cross over the region that some landform are changeable, thunder and lightning takes place frequently for China's power construction development.When meeting with Thunderstorm Weather, the transmission line of electricity in these regions is easy to lightning stroke flashover occurs and causes trip accident, and statistics shows, transmission line lightning stroke tripping operation number of times exceedes 50% of total tripping operation number of times, is the biggest threat factor of electric power netting safe running.
At present for power transmission line lightning shielding protection, it is the most basic a kind of measure that steel tower sets up lightning conducter.The Main Function of lightning conducter prevents thunder and lightning from attacking wire directly.Line between lightning conducter and its outboard wire protected and the angle between the vertical line of lightning conducter, be called shielding angle.Shielding angle can be determined according to the lightning parameter of transmission line of electricity region and topography and geomorphology, and for interchange 500 KV transmission line, regulations stipulate shielding angle is not more than 15 °.But the lightning conducter rack form of existing iron tower of power transmission line is fixed; article one, transmission line of electricity is once design and construction completes; earth-wire protection angle just becomes a fixed value, cannot adjust flexibly according to the postrun actual lightning protection situation change of circuit to earth-wire protection angle.If earth-wire protection angle will be adjusted after transmission line of electricity puts into operation, then need to carry out tower head transformation, there is the shortcoming that transformation difficulty is large and cost of investment is high.
Utility model content
The purpose of this utility model is the interchange 500 KV transmission line steel tower providing a kind of adjustable earth-wire protection angle, makes wire obtain best earth-wire protection angle, effectively reduces transmission line caused by lightning strike number of times, improves power supply reliability.
The utility model discloses a kind of interchange 500 KV transmission line steel towers, comprise the cross-arm on tower body and its top, the two ends, downside of cross-arm and middle part are connected to insulator, phase conductor during the insulator lower end difference fillet phase conductor at two ends, middle insulator lower end connect.The two ends, upside of cross-arm are symmetrically connected with lightning conducter support, lightning conducter support are connected to some lightning conducters and connect gold utensil.
Described lightning conducter support comprises the crossbeam of column and its upper end, the lower end of column is connected to the inner side of corresponding end insulator junction on cross-arm, the length direction of crossbeam extends toward the outer end of cross-arm, some lightning conducters connect the length direction of gold utensil on the downside of crossbeam and arrange, wherein the lightning conducter of outermost end connects gold utensil longitudinal centre line and the insulator longitudinal centre line conllinear fixing described limit phase conductor.
As preferably; the downside length direction of described lightning conducter rack beam is furnished with four lightning conducters and connects gold utensil, is 0 °, 5 °, 10 ° and 15 ° is as the criterion when the outer position connecting gold utensil toward interior each lightning conducter is determined to mount successively with lightning conducter to the shielding angle of corresponding side wire below it.
The thunder and lightning environment of every bar transmission line of electricity through region is different, and the best protection angle of lightning conducter also can corresponding difference.The utility model arranges lightning conducter support by two ends above cross-arm, lightning conducter support arranges multiple lightning conducter and connects gold utensil, can according to the actual change of lightening activity around steel tower and lightning parameter situation after transmission line of electricity puts into operation, the change installation site of lightning conducter on lightning conducter support realizes the flexible adjustment to earth-wire protection angle, to obtain the shielding protection effect of lightning conducter to wire the best, effectively reduce transmission line lightning stroke tripping operation number of times, realize differentiated lightning protection, make every bar transmission line of electricity all can obtain best lightning protection effect, improve power supply reliability.Avoiding earth-wire protection angle on prior art transmission line of electricity is a fixed value, every bar transmission line of electricity can not be made all to obtain the defect of best lightning protection effect difference, it also avoid the tower head investment for trnasforming urban land of prior art and the defect of loss of outage simultaneously.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model preferred embodiment.
Detailed description of the invention
Preferred embodiment, as shown in Figure 1, this interchange 500 KV transmission line steel tower disclosed in the utility model, comprise the cross-arm 2 on tower body 1 and its top, the two ends, downside of cross-arm 2 and middle part are connected to insulator 3, phase conductor 5 during the insulator 3 lower end difference fillet phase conductor 4 at two ends, middle insulator 3 lower end connect, the two ends, upside of cross-arm 2 are symmetrically connected with lightning conducter support 6.
Lightning conducter support 6 comprises the crossbeam 62 of column 61 and its upper end, the lower end of column 61 is connected to the inner side of corresponding end insulator junction on cross-arm 2, the length direction of crossbeam 62 extends toward the outer end of steel tower cross-arm 2, the downside of crossbeam 62 is furnished with four lightning conducters along its length and connects gold utensil 7, and wherein the lightning conducter of outermost end connects the insulator longitudinal centre line conllinear of gold utensil 7 longitudinal centre line and fixed edge phase conductor 4.
When the crossbeam 62 of same lightning conducter support 6 is determined mount successively with lightning conducter 8 from the outer position connecting gold utensil 7 toward interior each lightning conducter to the shielding angle of corresponding side wire below it be preferably 0 °, 5 °, 10 ° and 15 ° be as the criterion.
When making steel tower, tower body and cross-arm can adopt the Hunan China tower material that manufacture of steel structure company produces energetically to assemble.Lightning conducter support can adopt the Hunan China tower material that manufacture of steel structure company produces energetically to assemble, and lightning conducter connects the connection gold utensil that gold utensil can adopt Chinese Wenzhou Gulifa Electric Co., Ltd. to produce.Insulator can adopt Chinese Zi Gong to match the glass insulator of Deaville toughened glass insulator Co., Ltd production.The steel-cored aluminium strand that three-phase conducting wire can adopt Chinese golden cup electrician Hengyang Cable Co., Ltd to produce.
The thunder and lightning environment of every bar transmission line of electricity through region is different, and the best protection angle of lightning conducter also can corresponding difference.The utility model arranges lightning conducter support by two ends above cross-arm, lightning conducter support arranges multiple lightning conducter and connects gold utensil, can according to the actual change of lightening activity around steel tower and lightning parameter situation after transmission line of electricity puts into operation, the change installation site of lightning conducter on lightning conducter support realizes the flexible adjustment to earth-wire protection angle, to obtain the shielding protection effect of lightning conducter to wire the best, effectively reduce transmission line lightning stroke tripping operation number of times, realize differentiated lightning protection, make every bar transmission line of electricity all can obtain best lightning protection effect, improve power supply reliability.Avoiding earth-wire protection angle on prior art transmission line of electricity is a fixed value, every bar transmission line of electricity can not be made all to obtain the defect of best lightning protection effect difference, it also avoid the tower head investment for trnasforming urban land of prior art and the defect of loss of outage simultaneously.
Claims (3)
1. one kind exchanges 500 KV transmission line steel towers, comprise the cross-arm on tower body and its top, the two ends, downside of cross-arm and middle part are connected to insulator, phase conductor during the insulator lower end difference fillet phase conductor at two ends, middle insulator lower end connect, it is characterized in that: the two ends, upside of described cross-arm are symmetrically connected with lightning conducter support, lightning conducter support is connected to some lightning conducters and connects gold utensil.
2. interchange as claimed in claim 1 500 KV transmission line steel towers, it is characterized in that: described lightning conducter support comprises the crossbeam of column and its upper end, the lower end of column is connected to the inner side of corresponding end insulator junction on cross-arm, the length direction of crossbeam extends toward the outer end of cross-arm, some lightning conducters connect the length direction of gold utensil on the downside of crossbeam and arrange, wherein the lightning conducter of outermost end connects gold utensil longitudinal centre line and the insulator longitudinal centre line conllinear fixing described limit phase conductor.
3. interchange as claimed in claim 2 500 KV transmission line steel towers; it is characterized in that: the downside length direction of described lightning conducter rack beam is furnished with four lightning conducters and connects gold utensil, when the outer position connecting gold utensil toward interior each lightning conducter is determined to mount successively with lightning conducter, the shielding angle of corresponding side wire below it is 0 °, 5 °, 10 ° and 15 ° and is as the criterion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520206129.8U CN204552239U (en) | 2015-04-08 | 2015-04-08 | Exchange 500 KV transmission line steel towers |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520206129.8U CN204552239U (en) | 2015-04-08 | 2015-04-08 | Exchange 500 KV transmission line steel towers |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204552239U true CN204552239U (en) | 2015-08-12 |
Family
ID=53827368
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520206129.8U Withdrawn - After Issue CN204552239U (en) | 2015-04-08 | 2015-04-08 | Exchange 500 KV transmission line steel towers |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204552239U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104734103A (en) * | 2015-04-08 | 2015-06-24 | 国家电网公司 | Alternating current five hundred kilovolt transmission line iron tower and method for adjusting lightning conductor protection angle thereof |
| CN107905614A (en) * | 2017-12-08 | 2018-04-13 | 国家电网公司 | A kind of transmission line of alternation current single loop tangent tower with arrester |
-
2015
- 2015-04-08 CN CN201520206129.8U patent/CN204552239U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104734103A (en) * | 2015-04-08 | 2015-06-24 | 国家电网公司 | Alternating current five hundred kilovolt transmission line iron tower and method for adjusting lightning conductor protection angle thereof |
| CN104734103B (en) * | 2015-04-08 | 2016-02-10 | 国家电网公司 | Exchange the method at 500 KV transmission line steel towers and adjustment earth-wire protection angle thereof |
| CN107905614A (en) * | 2017-12-08 | 2018-04-13 | 国家电网公司 | A kind of transmission line of alternation current single loop tangent tower with arrester |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20150812 Effective date of abandoning: 20160210 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |