CN201256271Y - Dual change tri-connection board for tri-connection strain insulator-string - Google Patents
Dual change tri-connection board for tri-connection strain insulator-string Download PDFInfo
- Publication number
- CN201256271Y CN201256271Y CNU2008200646964U CN200820064696U CN201256271Y CN 201256271 Y CN201256271 Y CN 201256271Y CN U2008200646964 U CNU2008200646964 U CN U2008200646964U CN 200820064696 U CN200820064696 U CN 200820064696U CN 201256271 Y CN201256271 Y CN 201256271Y
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- China
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- string
- connection
- yoke plates
- plate
- yoke
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- Expired - Fee Related
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Abstract
The utility model relates to a combined link plate for a triple tension string on an ultrahigh voltage transmission line, which is used to lead three-point connection on a triple tensioning insulator string to transit to two-point connection. The self design can guarantee each connection of the insulator string to have even forcing, reliable connection and excellent integral property. The combined link plate is a single-plate structure, which is combined by a left link plate and a right link plate. One end which is connected with the insulator string is designed with three hanging holes to connect with a duplex bowl head, one end which is connected with a wire is designed with two hanging holes to connect with a parallel hanging plate, and mounting holes of equalizer rings are designed on the gravity centers of the two link plates. The combined link plate has safe and reliable integral structure intensity, which can effectively guarantee the safe and reliable operation of a transmission line.
Description
Affiliated technical field
The utility model relates to the ultra-high-tension power transmission line equipment, especially is particularly related to a kind of being applied on the UHV transmission line, and being used for connecting transition with 3 of triple strain insulator string is 2 connections, finishes being connected of insulator string and lead.
Background technology
The current power transmission circuit develops to big capacity direction, and the radical of phase bundle conductor and the cross section of sub-conductor be all in continuous increase, thereby requires the mechanical strength of strain insulator string also to improve thereupon.The intensity of monolithic insulator reaches 300kN, 400kN and 530kN at present, the strain insulator-string of selecting for use two insulators to be assembled into obviously is the easiest and reliable compound mode, yet because technology and economic dispatch are all multifactor, adopt three or the multi-joint strain insulator-string of tetrad be still engineering design essentially consider, particularly for the heavy icing area transmission line.
Summary of the invention
Given this, the purpose of this utility model just is to provide a kind of can be applicable to the UHV transmission line engineering, being used for connecting transition with 3 of triple strain insulator string is 2 connections, finishes being connected of insulator string and lead, and triple strain string rational in infrastructure is with two changes, three yoke plates.
The technical scheme in the invention for solving the technical problem is:
The triple strain string becomes three yoke plates with two and is single plate structure, adopts left and right two yoke plates to make up in centre extension string eyelet punishment two-stage and finishes connection.Top, three gold utensil strings adopt three hanging points (2), and each joins stressed equating.Left and right two yoke plate combinations place, the form that adopts grooved to connect is promptly slotted on the plate on the right, and left plate inserts the right panel splicing, sees accompanying drawing two, splicing back socket-clevis eye bolt.
This yoke plate has designed three hanging holes (2) and has linked to each other with duplex bowl head, and two hanging holes (1) connect special parallel link plate, designs the installing hole (3) of grading ring at the position of centre of gravity of two yoke plates.See accompanying drawing one.
Determining of two hanging hole points (1): three gold utensil strings adopt three hanging points, and each joins stressed equating, the twice connection spacing and following two ratios that connect the hole heart distance of gold utensil of three insulator strings are 1.5.
The beneficial effects of the utility model are:
1, the utility model, three hanging holes (2) that link to each other with duplex bowl head, stressed rationally with special two hanging holes of parallel link plate (1).
2, the utility model, the reasonable in design of left and right two yoke plate infalls is attractive in appearance, safe and reliable.
3, all press shading ring to be contained in installing hole (3), circuit is worked preventing the corona protective effect
Description of drawings
Fig. 1 is that triple strain string of the present utility model becomes three yoke plate structural representations with two.
Fig. 2 is the junction schematic diagram of left and right two yoke plates of combination yoke plate
Each icon among the figure: 1. suppending hole, 2. bunch-hanged hole, 3. grading ring installing hole.
Embodiment
A kind of triple strain string of the present utility model becomes three yoke plates with two, and model: LZ3-16824001600S as shown in Figure 1, is made up of left and right two yoke plates.
Above-mentioned triple strain string becomes three yoke plates with two, all according to the national standard design, is made by low-alloy high-tensile structural steel, and tensile strength is greater than 500MPa.
Present embodiment can be installed on ± 800 kilovolts of direct current UHV transmission line in; to all press shading ring to be contained in installing hole; circuit risen prevent the corona protective effect; be connected with insulator string by bunch-hanged hole; the weight of whole piece circuit has been passed to iron tower by insulator string, and whole yoke plate has played crucial connection effect.
Claims (4)
1. a triple strain string becomes three yoke plates with two, 3 connection transition that are used for triple strain insulator string are 2 connections, it is characterized in that: this combination yoke plate yoke plate is a single plate structure, adopts left and right two yoke plates to make up in centre extension string eyelet punishment two-stage and finishes connection.
2. triple strain string according to claim 1 becomes three yoke plates with two, it is characterized in that: left and right two yoke plates adopt grooved to connect.
3. triple strain string according to claim 1 becomes three yoke plates with two, and it is characterized in that: three gold utensil strings adopt three hanging points, and each joins stressed equating, the twice connection spacing and following two ratios that connect the hole heart distance of gold utensil of three insulator strings are 1.5.
4. triple strain string according to claim 1 becomes three yoke plates with two, it is characterized in that: the installing hole that designs grading ring at the position of centre of gravity of two yoke plates.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200646964U CN201256271Y (en) | 2008-08-14 | 2008-08-14 | Dual change tri-connection board for tri-connection strain insulator-string |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200646964U CN201256271Y (en) | 2008-08-14 | 2008-08-14 | Dual change tri-connection board for tri-connection strain insulator-string |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201256271Y true CN201256271Y (en) | 2009-06-10 |
Family
ID=40739598
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200646964U Expired - Fee Related CN201256271Y (en) | 2008-08-14 | 2008-08-14 | Dual change tri-connection board for tri-connection strain insulator-string |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201256271Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102709854A (en) * | 2012-05-24 | 2012-10-03 | 中国南方电网有限责任公司超高压输电公司 | Linked plate for +/-500kV line triple tension string |
-
2008
- 2008-08-14 CN CNU2008200646964U patent/CN201256271Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102709854A (en) * | 2012-05-24 | 2012-10-03 | 中国南方电网有限责任公司超高压输电公司 | Linked plate for +/-500kV line triple tension string |
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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: 20090610 Termination date: 20110814 |