CN104240866A - Anti-dance double-divided-conductor composite insulator strain insulator string - Google Patents
Anti-dance double-divided-conductor composite insulator strain insulator string Download PDFInfo
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- CN104240866A CN104240866A CN201410484107.8A CN201410484107A CN104240866A CN 104240866 A CN104240866 A CN 104240866A CN 201410484107 A CN201410484107 A CN 201410484107A CN 104240866 A CN104240866 A CN 104240866A
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Abstract
The invention discloses an anti-dance double-divided-conductor composite insulator strain insulator string. The strain insulator string comprises a tower connecting U-shaped hanging ring (1), an extending ring (2), a U-shaped hanging ring (3), a connecting plate (4), and two chains, wherein each chain is composed of two inner arc U-shaped rings (5) connected in a ring-ring mode, a screw hole structure composite insulator (6) and a right-angled hanging plate (7). The two chains are connected into one string through a connecting plate (8), and the strain insulator string further sequentially comprises two inner arc U-shaped rings (5) connected in a ring-ring mode, adjusting plates (9), U-shaped hanging rings (10) and reinforcing strain clamps (11). As the connecting modes between fittings are changed, the strain insulator string can rotate axially with the range of +/-10-20 degrees, it is avoided that the screw hole structure composite insulators are subjected to torsion axially under the conditions that lines covered with ice dance or a hurricane occurs, and then the mechanical strength of mandrils and the fittings at the ends is damaged, the phenomenon that in the past, balls and sockets of conventional composite insulators fall off under the conditions that the lines covered with ice dance is avoided, and the reliability of safe operation of the strain insulator string in the ice-covered dancing process.
Description
Technical field:
The present invention relates to a kind of 110 ~ 220kV overhead transmission line anti-dance type double bundle conductor Screw hole structure composite insulator tension string, belong to the design of electric power system overhead transmission line, operation, maintenance field, be suitable for circuit and easily wave region.
Background technology:
So far, the composite insulator tension string standard material of State Grid Corporation of China's competitive bidding is conventional type, and the syndeton of insulator string cannot make composite insulator axial rotation; At present, usually take the way of the strength grade improving composite insulator, successively change 100kN or 120kN into by 70kN changes 160kN into the specified mechanical load of such as standard material composite insulator.
Tsing-Hua University within 2002, carried out composite insulator ± research of 10 ° of tension-torsion dynamic loading experiments, think that inner inlaying type composite insulator can meet service requirement under various dynamic loads.(#1 ~ #15 is compression joint type to one group of 500kV Anti-tension composite insulator that Shandong Research Inst. of Electric Power carries out for 2005, #16 ~ #27 is inner inlaying type) ± 10 ° of tension-torsion pull and torsion test data show: test product mechanical damage after stretch-twisting combination test that end connects for compression joint type has reduction in various degree (on average reducing by 5%), and inner inlaying type test product mechanical failure load after stretch-twisting combination test raises (on average improving 6%) on the contrary.This is because the mechanical load of compression joint type test product is a process declined gradually, and inner inlaying type test product is carved the pulling force born block both sides and redistributed after stretch-twisting combination test, and mechanical failure load comparatively initial value wants high.Because inner inlaying type manufacture craft is not bery ripe, so far, mostly select crimp connection type composite insulator.And minimizing even avoids composite insulator axis to be the key realizing life-cycle theory by turning round.
Summary of the invention:
The object of the invention is to overcome the deficiency of above-mentioned prior art and provide one to impel wire icing even, reducing conductor galloping amplitude; Reduce mechanical load even brittle failure phenomenon, reach life cycle management, anti-dance type double bundle conductor composite insulator tension string safe and reliable to operation.
Object of the present invention can be reached by following measure: a kind of anti-dance type double bundle conductor composite insulator tension string, it is characterized in that it comprises connection tower inner arc U-loop, connection tower inner arc U-loop connects prolongation ring, extend ring and connect U-shaped link, U-shaped link connects yoke plate, the two ends of yoke plate connect the inner arc U-loop that 2 pairs of ring-rings connect respectively, often pay the inner arc U-loop that ring-ring connects and all connect a Screw hole structure composite insulator, often prop up Screw hole structure composite insulator and all connect a right angle link plate, right angle link plate is connected to the two ends of yoke plate, the two ends of yoke plate connect the inner arc U-loop that 2 pairs of ring-rings connect respectively, often pay the inner arc U-loop that ring-ring connects and all connect an adjustment plate, often pay adjustment plate and all connect a U-shaped link, often pay U-shaped link homogeneous reinforced strain clamp.
In order to realize object of the present invention further, the two ends of often propping up Screw hole structure composite insulator are equipped with bird-proof cover type grading ring.
The present invention can produce following good effect compared with the prior art: the present invention one designs at live end two inner arc U-loops that 2 pairs of ring-rings connect, and decreases the torsional rigidity of double bundle conductor, impels wire icing even, reduces conductor galloping amplitude; Two is two inner arc U-loops that the earth terminal end of composite insulator is connected with 2 pairs of ring-rings and connects, and can solve composite electric insulator core bar and be turned round, reduces mechanical load even brittle failure phenomenon, reach life cycle management design concept; Three are bulbs of composite insulator, socket arrangement changes single screw syndeton into, effectively can avoid bulb, ball-and-socket obscission, improve strain insulator-string waves safe operation in process reliability at icing, therefore, there is anti-dance feature.The present invention is by changing the connected mode between gold utensil, enable strain insulator-string ± 10 ~ 20 ° ground axial rotation, thus avoid Screw hole structure composite insulator wave at line ice coating or occur in hurricane situation axially to be turned round, destroy the mechanical strength of plug and its end metal fitting, it also avoid line ice coating in the past wave situation under bulb, the ball-and-socket obscission of conventional composite insulator.
Accompanying drawing illustrates:
Fig. 1 is structural representation of the present invention.
Embodiment: preferred forms of the present invention is elaborated below in conjunction with accompanying drawing:
Embodiment: a kind of anti-dance type double bundle conductor composite insulator tension string (see Fig. 1), it comprises to live end successively from earth terminal: 1 pair of U-32115 type connection tower inner arc U-loop 1, 1 pair of PH-25120 type extends ring 2, 1 pair of U-25110 type U-shaped link 3, 1 piece of L-25-110/400 type yoke plate 4, be divided into two again, often join the U-12H type inner arc U-loop 5 connected by 2 pairs of ring-rings, 1 FXBW-220/160-3 type Screw hole structure composite insulator 6, 1 pair of Z-12100 type right angle link plate 7 forms, then 1 string is combined into by LF-25-120/400 type yoke plate 8, then the U-12H type inner arc U-loop 5 that 2 pairs of ring-rings connect is followed successively by, 1 pair of DB-12100-240 type adjustment plate 9, 1 pair of U-1290 type U-shaped link 10 and the reinforced strain clamp 11 of NY-400/35 (J) type.Above-mentioned parts can select other models as required.Connection tower inner arc U-loop 1 connects prolongation ring 2, extend ring 2 and connect U-shaped link 3, U-shaped link 3 connects yoke plate 4, the two ends of yoke plate 4 connect the inner arc U-loop 5 that 2 pairs of ring-rings connect respectively, often pay the inner arc U-loop 5 that ring-ring connects and all connect a Screw hole structure composite insulator 6, the two ends of often propping up composite insulator 6 are equipped with bird-proof cover type grading ring 12, often prop up Screw hole structure composite insulator 6 and all connect a right angle link plate 7, right angle link plate 7 is connected to the two ends of yoke plate 8, the two ends of yoke plate 8 connect the inner arc U-loop 5 that 2 pairs of ring-rings connect respectively, often pay the inner arc U-loop 5 that ring-ring connects and all connect an adjustment plate 9, often pay adjustment plate 9 and all connect a U-shaped link 10, often pay U-shaped link 10 homogeneous reinforced strain clamp 11.
Claims (2)
1. an anti-dance type double bundle conductor composite insulator tension string, it is characterized in that it comprises connection tower inner arc U-loop (1), connection tower inner arc U-loop (1) connects prolongation ring (2), extend ring (2) and connect U-shaped link (3), U-shaped link (3) connects yoke plate (4), the two ends of yoke plate (4) connect the inner arc U-loop (5) that 2 pairs of ring-rings connect respectively, often pay the inner arc U-loop (5) that ring-ring connects and all connect a Screw hole structure composite insulator (6), often prop up Screw hole structure composite insulator (6) and all connect a right angle link plate (7), right angle link plate (7) is connected to the two ends of yoke plate (8), the two ends of yoke plate (8) connect the inner arc U-loop (5) that 2 pairs of ring-rings connect respectively, often pay the inner arc U-loop (5) that ring-ring connects and all connect adjustment plate (9), often pay adjustment plate (9) and all connect a U-shaped link (10), often pay U-shaped link (10) homogeneous reinforced strain clamp (11).
2. one according to claim 1 anti-dance type double bundle conductor composite insulator tension string, is characterized in that the described two ends of often propping up Screw hole structure composite insulator (6) are equipped with bird-proof cover type grading ring (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410484107.8A CN104240866A (en) | 2014-09-22 | 2014-09-22 | Anti-dance double-divided-conductor composite insulator strain insulator string |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410484107.8A CN104240866A (en) | 2014-09-22 | 2014-09-22 | Anti-dance double-divided-conductor composite insulator strain insulator string |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104240866A true CN104240866A (en) | 2014-12-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410484107.8A Pending CN104240866A (en) | 2014-09-22 | 2014-09-22 | Anti-dance double-divided-conductor composite insulator strain insulator string |
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| CN (1) | CN104240866A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111430089A (en) * | 2020-01-21 | 2020-07-17 | 国网浙江省电力有限公司湖州供电公司 | Perpendicular two strain insulator string that hang some pair and hang and establish device |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5019675Y2 (en) * | 1971-06-07 | 1975-06-14 | ||
| CN102280227A (en) * | 2011-07-15 | 2011-12-14 | 山东电力集团公司烟台供电公司 | Composite insulator tension string of overhead transmission line |
| CN204204523U (en) * | 2014-09-22 | 2015-03-11 | 国家电网公司 | A kind of anti-dance type double bundle conductor composite insulator tension string |
-
2014
- 2014-09-22 CN CN201410484107.8A patent/CN104240866A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5019675Y2 (en) * | 1971-06-07 | 1975-06-14 | ||
| CN102280227A (en) * | 2011-07-15 | 2011-12-14 | 山东电力集团公司烟台供电公司 | Composite insulator tension string of overhead transmission line |
| CN204204523U (en) * | 2014-09-22 | 2015-03-11 | 国家电网公司 | A kind of anti-dance type double bundle conductor composite insulator tension string |
Non-Patent Citations (1)
| Title |
|---|
| 王茂成: "输电线路复合绝缘子和金具串的优化设计", 《电力建设》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111430089A (en) * | 2020-01-21 | 2020-07-17 | 国网浙江省电力有限公司湖州供电公司 | Perpendicular two strain insulator string that hang some pair and hang and establish device |
| CN111430089B (en) * | 2020-01-21 | 2021-11-09 | 国网浙江省电力有限公司湖州供电公司 | Perpendicular two strain insulator string that hang some pair and hang and establish device |
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Application publication date: 20141224 |