CN104577923A - Quaternary fission type subspan oscillation preventing power transmission line spacer - Google Patents
Quaternary fission type subspan oscillation preventing power transmission line spacer Download PDFInfo
- Publication number
- CN104577923A CN104577923A CN201410780111.9A CN201410780111A CN104577923A CN 104577923 A CN104577923 A CN 104577923A CN 201410780111 A CN201410780111 A CN 201410780111A CN 104577923 A CN104577923 A CN 104577923A
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- CN
- China
- Prior art keywords
- transmission line
- power transmission
- short
- cable clamps
- subspan oscillation
- 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.)
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Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G7/00—Overhead installations of electric lines or cables
- H02G7/12—Devices for maintaining distance between parallel conductors, e.g. spacer
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G7/00—Overhead installations of electric lines or cables
- H02G7/14—Arrangements or devices for damping mechanical oscillations of lines, e.g. for reducing production of sound
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- Suspension Of Electric Lines Or Cables (AREA)
Abstract
The invention discloses a quaternary fission type subspan oscillation preventing power transmission line spacer. The quaternary fission type subspan oscillation preventing power transmission line spacer comprises a quadrangular frame and cable clamps, wherein the cable clips comprise two long cable clamps and two short cable clamps; the long cable clamps and the short cable clamps are respectively and alternately arranged at four vertex angles of the quadrangular frame; the four vertex angles of the quadrangular frame are respectively connected with the front ends of the cable clamps; clamping holes are formed in the rear ends of the cable clamps; rubber blankets are arranged on the inner walls of the clamping holes; the center lines of the two cable clamps arranged at the opposite angles of the quadrangular frame are positioned on the extension lines of the diagonal lines corresponding to the opposite angles. According to the quaternary fission type subspan oscillation preventing power transmission line spacer disclosed by the invention, the long cable clamps and the short cable clamps are sequentially and alternately arranged at the four vertex angles of the quadrangular frame; the long cable clamps and the short cable clamps with different lengths can be used for increasing the intervals of the divided conductors respectively fixed inside the clamping holes of the long cable clamps and the short cable clamps, so as to reduce the influence of the subspan oscillation on the operation security of the high-voltage grade power transmission line, and ensure the electric system to be operated safely and stably.
Description
Technical field
The present invention relates to the power transmission line spacer in ultra-high-tension power transmission line vibrationproof mitigation field, particularly relate to the power transmission line spacer of the anti-subspan oscillation of a kind of quadripartion formula.
Background technology
The hazard of vibration of transmission line under wind action is serious, greatly threatens the safe operation of voltage levels transmission line.Subspan oscillation is bundle conductor circuit distinctive a kind of vibration mode under wind action, is the vibration of a kind of bundle conductor that the wake galloping of wire causes.Subspan oscillation can cause knock against each other and the whiplash of sub-conductor, and wire is worn and torn, and can cause the accident such as wire strand breakage, short circuit time serious, the safe and stable operation of serious harm electric power system.
At present, the method for preventing and treating bundle conductor subspan oscillation mainly contains: improve time span and arrange, increase sub-conductor spacing distance and diameter of wire ratio, install vibrationproof gold utensil etc.Improve time span and arrange what the secondary span Unequal distance layout mainly passing through bundle conductor realized.The method avoids the situation that wire natural frequency in adjacent span is identical, improve the subspan oscillation of bundle conductor to a certain extent.The ratio increasing heading spacing and diameter of wire is mainly realized by the heading spacing increasing sub-conductor.This method can reduce the number being in sub-conductor in wake flow, and then reduces subspan oscillation, the cost but increase sub-conductor spacing can be increased input.Installation vibrationproof gold utensil is mainly realized by the method such as spacing, change wire profile of vibrationproof gold utensil stator wire.What this method effectively can improve transmission line waves characteristic, but not obvious for the prevention effect of subspan oscillation.
Summary of the invention
The object of this invention is to provide the power transmission line spacer of the anti-subspan oscillation of a kind of quadripartion formula, effectively can avoid the drawback of existing vibrationproof mode when preventing and treating subspan oscillation, reduce subspan oscillation to the impact of voltage levels transmission line security of operation, ensure the safe and stable operation of electric power system.
The present invention adopts following technical proposals:
The power transmission line spacer of the anti-subspan oscillation of a kind of quadripartion formula, comprise quadrilateral frame and wire clamp, wire clamp comprises two long wire clamps and two short-term folders, long wire clamp and short-term folder are disposed alternately on four drift angles of quadrilateral frame successively, the front end of four drift angles difference connecting clamps of quadrilateral frame, the rear end of wire clamp is provided with folder hole, and folder hole inwall is provided with rubber blanket; The center line of two wire clamps that quadrilateral frame diagonal angle is arranged is positioned on the cornerwise extended line corresponding to this diagonal angle.
The folder hole line of centres that adjacent long wire clamp and short-term press from both sides therewith long wire clamp and short-term press from both sides the rectangular frame be connected sideline formed by angle be greater than 0 °.
The length of two described long wire clamps is identical, and the length of two short-term folders is identical.
Described quadrilateral frame is two deckle board quadrilateral frames.
Described quadrilateral frame adopts rectangular frame.
Described rectangular frame is square frame.
The jaw face of described long wire clamp and short-term folder is circular arc.
Described quadrilateral frame and wire clamp are aluminum alloy materials.
Described rubber blanket is silicone rubber pad.
The present invention is by being arranged alternately long wire clamp and short-term folder successively at four drift angles of quadrilateral frame, the spacing of the bundle conductor being separately fixed at long wire clamp and short-term folder folder hole inside is increased by the long wire clamp of different length and short-term folder, to reduce the impact of subspan oscillation on voltage levels transmission line security of operation, ensure the safe and stable operation of electric power system.Further, the present invention by the folder hole line of centres that changes adjacent long wire clamp and short-term and press from both sides therewith long wire clamp and short-term press from both sides the rectangular frame be connected sideline formed by angle, when angle is larger, the distance of adjacent long wire clamp and the wire clamped by short-term folder is far away, the wake effect that the sub-conductor being in leeward side is subject to the sub-conductor being in windward side is less, more subspan oscillation is less likely to occur, ensures the safe and stable operation of electric power system further.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
Fig. 2 is Topological Simplification figure of the present invention;
Fig. 3 is the upward view of Fig. 1.
Embodiment
As depicted in figs. 1 and 2, the power transmission line spacer of the anti-subspan oscillation of quadripartion formula of the present invention, comprise quadrilateral frame 1 and wire clamp, wire clamp comprises two long wire clamps 2 and two short-term folders 3, long wire clamp 2 and short-term folder 3 are disposed alternately on four drift angles of quadrilateral frame 1 successively, the front end of four drift angles difference connecting clamps of quadrilateral frame 1, the rear end of wire clamp is provided with folder hole, and folder hole inwall is provided with rubber blanket 4; The center line of two wire clamps that quadrilateral frame 1 diagonal angle is arranged is positioned on the cornerwise extended line corresponding to this diagonal angle.The present invention utilizes the long wire clamp 2 that is arranged alternately and short-term folder 3, can increase and be separately fixed at the spacing that long wire clamp 2 and short-term press from both sides the bundle conductor of 3 folder hole inside.
In the present invention, the folder hole line of centres 5 of adjacent long wire clamp 2 and short-term folder 3 therewith angle α formed by the sideline 6 of rectangular frame that is connected of long wire clamp 2 and short-term folder 3 is greater than 0 °.By arranging the size of angle α, the relative position of adjacent long wire clamp 2 and the wire of short-term folder clamped by 3 can be changed, and angle α is larger, the distance of adjacent long wire clamp 2 and the wire of short-term folder clamped by 3 is far away, accordingly, the wake effect that the sub-conductor being in leeward side is subject to the sub-conductor being in windward side is less, more subspan oscillation is less likely to occur.
In the present embodiment, quadrilateral frame 1 is aluminum alloy materials.Quadrilateral frame 1 can adopt rectangular frame, also can adopt square frame.As shown in Figure 3, quadrilateral frame 1 is two frame plate structures, is bolted is formed by upper and lower two-layer template framework, and this structure rationally can alleviate the weight of conductor spacer under the prerequisite ensureing its mechanical property.Quadrilateral frame 1 is in the inside of bundle conductor, and this structure can reduce the corona loss of conductor spacer framework.
In the present embodiment, long wire clamp 2 and short-term folder 3 are aluminum alloy materials.The length of two long wire clamps 2 is identical, and the length of two short-term folders 3 is identical, and this structure can form symmetrical electric field in bundle conductor inside.The jaw face of long wire clamp 2 and short-term folder 3 all does orthodrome process, and the jaw face making long wire clamp 2 and short-term folder 3 is circular arc, and this structure can reduce the electric potential gradient of wire clamp head, and then reduces the chance that wire clamp head produces corona.
In the present embodiment, rubber blanket 4 adopts silicone rubber pad.The compressive deformation that rubber blanket 4 produces can produce normal pressure to the wire of wire clamp clamping, and the creep of compensating wire, can absorb the vibrational energy of wire in addition, thus reaches the effect suppressing conductor vibration.
One aspect of the present invention, by the long wire clamp 2 that is arranged alternately and short-term folder 3, increases and is fixed on the spacing that long wire clamp 2 and short-term press from both sides the bundle conductor of 3 folder hole inside; On the other hand, by changing the size of angle α, leeward side sub-conductor can be avoided directly to be among the wake flow of windward side sub-conductor.The present invention, by above-mentioned two aspect actings in conjunction, can reduce the wake effect of windward side sub-conductor to leeward side sub-conductor, reduces subspan oscillation to the impact of voltage levels transmission line security of operation, ensures the safe and stable operation of electric power system.
Claims (9)
1. the power transmission line spacer of the anti-subspan oscillation of quadripartion formula, it is characterized in that: comprise quadrilateral frame and wire clamp, wire clamp comprises two long wire clamps and two short-term folders, long wire clamp and short-term folder are disposed alternately on four drift angles of quadrilateral frame successively, the front end of four drift angles difference connecting clamps of quadrilateral frame, the rear end of wire clamp is provided with folder hole, and folder hole inwall is provided with rubber blanket; The center line of two wire clamps that quadrilateral frame diagonal angle is arranged is positioned on the cornerwise extended line corresponding to this diagonal angle.
2. the power transmission line spacer of the anti-subspan oscillation of quadripartion formula according to claim 1, is characterized in that: the folder hole line of centres that adjacent long wire clamp and short-term press from both sides therewith long wire clamp and short-term press from both sides the rectangular frame be connected sideline formed by angle be greater than 0 °.
3. the power transmission line spacer of the anti-subspan oscillation of quadripartion formula according to claim 2, is characterized in that: the length of two described long wire clamps is identical, and the length of two short-term folders is identical.
4. the power transmission line spacer of the anti-subspan oscillation of quadripartion formula according to claim 3, is characterized in that: described quadrilateral frame is two deckle board quadrilateral frame.
5. the power transmission line spacer of the anti-subspan oscillation of quadripartion formula according to claim 4, is characterized in that: described quadrilateral frame adopts rectangular frame.
6. the power transmission line spacer of the anti-subspan oscillation of quadripartion formula according to claim 5, is characterized in that: described rectangular frame is square frame.
7. the power transmission line spacer of the anti-subspan oscillation of quadripartion formula according to claim 6, is characterized in that: the jaw face of described long wire clamp and short-term folder is circular arc.
8. the power transmission line spacer of the anti-subspan oscillation of quadripartion formula according to claim 7, is characterized in that: described quadrilateral frame and wire clamp are aluminum alloy materials.
9. the power transmission line spacer of the anti-subspan oscillation of quadripartion formula according to claim 8, is characterized in that: described rubber blanket is silicone rubber pad.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410780111.9A CN104577923A (en) | 2014-12-17 | 2014-12-17 | Quaternary fission type subspan oscillation preventing power transmission line spacer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410780111.9A CN104577923A (en) | 2014-12-17 | 2014-12-17 | Quaternary fission type subspan oscillation preventing power transmission line spacer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104577923A true CN104577923A (en) | 2015-04-29 |
Family
ID=53093402
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410780111.9A Pending CN104577923A (en) | 2014-12-17 | 2014-12-17 | Quaternary fission type subspan oscillation preventing power transmission line spacer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104577923A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108347024A (en) * | 2018-05-21 | 2018-07-31 | 南京南瑞继保电气有限公司 | A kind of damping conductor spacer of unequal arm length |
| CN108879549A (en) * | 2018-08-03 | 2018-11-23 | 安徽恒华电力设备有限公司 | A kind of novel more divisions have the wire clamp of glue bead |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101931193A (en) * | 2010-08-24 | 2010-12-29 | 中国电力科学研究院 | Adjustable sub-lead spacer |
| CN102361308A (en) * | 2011-05-13 | 2012-02-22 | 山东电力集团公司烟台供电公司 | Double bundle conductor adjustable compound insulation interphase spacer |
| CN202712795U (en) * | 2012-05-09 | 2013-01-30 | 中国南方电网有限责任公司超高压输电公司 | Four-split spacer rod for +/- 500kV line steel-cored aluminium strand |
| CN203660472U (en) * | 2013-11-18 | 2014-06-18 | 国家电网公司 | Spacer |
| CN204258233U (en) * | 2014-12-17 | 2015-04-08 | 国网河南省电力公司电力科学研究院 | The power transmission line spacer of the anti-subspan oscillation of a kind of quadripartion formula |
-
2014
- 2014-12-17 CN CN201410780111.9A patent/CN104577923A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101931193A (en) * | 2010-08-24 | 2010-12-29 | 中国电力科学研究院 | Adjustable sub-lead spacer |
| CN102361308A (en) * | 2011-05-13 | 2012-02-22 | 山东电力集团公司烟台供电公司 | Double bundle conductor adjustable compound insulation interphase spacer |
| CN202712795U (en) * | 2012-05-09 | 2013-01-30 | 中国南方电网有限责任公司超高压输电公司 | Four-split spacer rod for +/- 500kV line steel-cored aluminium strand |
| CN203660472U (en) * | 2013-11-18 | 2014-06-18 | 国家电网公司 | Spacer |
| CN204258233U (en) * | 2014-12-17 | 2015-04-08 | 国网河南省电力公司电力科学研究院 | The power transmission line spacer of the anti-subspan oscillation of a kind of quadripartion formula |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108347024A (en) * | 2018-05-21 | 2018-07-31 | 南京南瑞继保电气有限公司 | A kind of damping conductor spacer of unequal arm length |
| CN108347024B (en) * | 2018-05-21 | 2024-03-15 | 南京南瑞继保电气有限公司 | Damping spacer with unequal arm lengths |
| CN108879549A (en) * | 2018-08-03 | 2018-11-23 | 安徽恒华电力设备有限公司 | A kind of novel more divisions have the wire clamp of glue bead |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
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| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20150429 |