CN201251964Y - Strain string hardware fittings with three-connection horizontal arrangement for a super-high voltage direct current transmission line - Google Patents
Strain string hardware fittings with three-connection horizontal arrangement for a super-high voltage direct current transmission line Download PDFInfo
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- CN201251964Y CN201251964Y CNU2008201857695U CN200820185769U CN201251964Y CN 201251964 Y CN201251964 Y CN 201251964Y CN U2008201857695 U CNU2008201857695 U CN U2008201857695U CN 200820185769 U CN200820185769 U CN 200820185769U CN 201251964 Y CN201251964 Y CN 201251964Y
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- yoke
- gold utensil
- link plate
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Abstract
The utility model discloses a strain string hardware fitting with three-connection horizontal arrangement for a super-high voltage direct current transmission line, which comprises a yoke plate assembly. Tower head connecting hardware fittings are connected with the upper end of the yoke plate assembly through insulators, and sub-conductor hardware fittings are connected with the lower end of the yoke plate assembly. The number of the insulators is three, and one tower head connecting hardware fitting is respectively connected through the three insulators. The number of the sub-conductors is six. The yoke plate assembly comprises a three-in-two yoke plate, a first parallel hanging plate, a LV yoke plate, a second parallel hanging plate and a LS yoke plate. The three insulators are connected with the upper end of the three-in-two yoke plate through a bowl head hanging plate, and the lower end of the LS yoke plate is connected with the sub-conductor hardware fittings. The strain string hardware fitting has the advantages that the distance between the tower head hanging points can be adjusted according to the electric gap requirements, so the electric gap between the insulators can be effectively ensured; a voltage-equalizing ring and a shielding ring are arranged on the string, the voltage of the insulators is equalized, the hardware fittings are shielded, so the corona discharge under rated voltage is not generated. The strain string hardware fitting has the characteristics of simple structure, reasonable arrangement, reliable connection, and the like.
Description
Technical field
The utility model belongs to power transmission line equipment field, particularly is applied to the wide DC power transmission line strain insulator-string of ultra high voltage 800 clouds gold utensil.
Background technology
Serial type during the power circuit operation mainly contains strain insulator-string and dangles string.In transmission line, strain insulator-string bears the main tension force of circuit operation, and the reliability of its bulk strength directly influences the safe operation of circuit.± 500kV DC power transmission line, strain insulator string adopts the conductors on quad bundled scheme, double hanging point, lead is arranged in squares.In the wide DC power transmission line research and development program element of ultra high voltage ± 800kV cloud, the wire tension-resistant insulator string adopts the six-multiple conductor scheme, and six-multiple conductor is distributed on the circumference of φ 900mm, adopts 6 * LGJ-630/45 lead.
Summary of the invention
Technical problem to be solved in the utility model is: at ultra high voltage ± wide DC power transmission line of 800kV cloud, provide 2 good * 530kN of a kind of performance simple in structure, anticorona three horizontal strain insulator-string gold utensils.
Technical solution of the present utility model is as follows: a kind of extra high voltage direct current transmission line three horizontal strain insulator-string gold utensils, comprise steering stem comp, connect tower head in the steering stem comp upper end by insulator and connect gold utensil, at steering stem comp lower end connexon lead gold utensil, described insulator is 3, and respectively connect a tower head by 3 insulators and connect gold utensil, described sub-conductor gold utensil is 6.
Described steering stem comp comprises that three become two yoke plates, the first parallel link plate, LV yoke plate, the second parallel link plate and LS yoke plate, described 3 insulators are connected with three upper ends that become two yoke plates by socket-clevis eye, the three lower end ends that become two yoke plates connect the first parallel link plate, LV yoke plate, the second parallel link plate and LS yoke plate successively, and the lower end of LS yoke plate connects described sub-conductor and connects gold utensil.
Also comprise a grading ring, this grading ring and socket-clevis eye are fixedly linked; On described sub-conductor gold utensil, also be provided with shading ring.
Described tower head connects gold utensil and comprises gudgeon link plate, U type link, the first adjustment plate, parallel link plate, towing plate, ball-eye, and a U type link, the first adjustment plate, parallel link plate, towing plate are arranged between gudgeon link plate and the ball-eye; Described sub-conductor gold utensil comprises: the first sub-conductor gold utensil and the second sub-conductor gold utensil, the described first sub-conductor gold utensil comprise upper end and the first right angle link plate that is fixedly linked of LS yoke plate and first prolong pull bar, the second right angle link plate, second adjustment plate, the 2nd U type link and first strain clamp with the first right angle link plate links to each other successively; The described second sub-conductor gold utensil comprises upper end and LS yoke plate) the 3rd right angle link plate that is fixedly linked, the 4th right angle link plate, the 3rd adjustment plate, the 3rd U type link, second strain clamp that is connected two yoke plates in link plate lower end, the 3rd right angle and is arranged on two yoke plates, first side, the 5th right angle link plate, the 4th that is arranged on two yoke plates, second side is adjusted plate, the 6th right angle link plate, second prolongs pull bar, the 4th U type link and the 3rd strain clamp, and described shading ring is arranged on two yoke plates.
Compared with prior art, the utlity model has following advantage:
1, strain insulator serial type of the present utility model adopts three horizontal strain insulator-strings, and simple in structure, connection and reasonable arrangement, connection are reliable.
2, the feeder number of ultra high voltage ± 800kV cloud wide DC line transmission of electricity not only can minimizing transmission line is saved the circuit corridor, and helps solving the excessive problem that surpasses the contact capacity limit of short circuit current.
3, the utility model good electric property.Tower head hanging point distance can be regulated according to the electric clearance needs, can effectively guarantee the electric clearance between the insulator.On string, grading ring and shading ring have been installed, insulator has been carried out all pressing, gold utensil has been shielded, guaranteed under rated voltage, not produce corona.
4, the utility model can guarantee the safe operation of circuit, and particularly insulator list string is disconnected under special circumstances goes here and there, and guarantees the reliable connection of whole string gold utensil.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Fig. 2 is the end view of Fig. 1.
Fig. 3 is the structural representation that the utility model tower head connects gold utensil.
Fig. 4 is that the utility model first sub-conductor connects the gold utensil structural representation.
Fig. 5 is that the utility model second sub-conductor connects the gold utensil structural representation.
Embodiment
Below in conjunction with accompanying drawing, the utility model is elaborated, referring to figs. 1 to Fig. 5.
The utility model 2 * 530kN three horizontal strain insulator-strings are made up of following product, and steering stem comp 2, tower head connect gold utensil 1 and sub-conductor connects gold utensil 4, and concrete connected mode is:
Steering stem comp 2 comprises that three become two yoke plates 21, connect the first parallel link plate 22, LV yoke plate 23, second parallel link plate 24 and the LS yoke plate 25 successively at the three lower end ends that become two yoke plates 21, three change two yoke plates, 21, the first parallel link plates 21 and 23 3 product mixes of LV yoke plate become an integral body, when fortuitous event takes place, when insulator list string breaks string, can guarantee that the connection of whole string gold utensil does not come off, and guarantees the safety of circuit.
It is 3 that tower head connects gold utensil 1, its spacing is 1000mm, tower head connects gold utensil 1 and comprises successively: upper end and gudgeon link plate 11, U type link 12, first that tower head connects adjust plate 13, parallel link plate 14, towing plate 15, ball-eye 16, be connected between the gold utensil 1 with tower head at three changes, two yoke plates 21 and also be connected with insulator 3 by socket-clevis eye 17, the quantity of insulator 3 also is 3, on socket-clevis eye 17, also be installed with grading ring 5, grading ring 5 is used for insulator 3 is played all pressure effects, reduces the voltage ratio of monolithic insulator.
Sub-conductor connects gold utensil 4 and is divided into two kinds, the first sub-conductor gold utensil 41 and the second sub-conductor gold utensil 42, the first sub-conductor gold utensil 41 is 2 groups, each connects a root lead, it order be: the first right angle link plate 411, first prolongs pull bar 412, the second right angle link plate 413, second is adjusted plate 414, the second type link 415 and first strain clamp 416; It is 2 groups that second sub-conductor connects gold utensil 42, every group connects 2 root leads, it order be: the 3rd right angle link plate 421, two yoke plates 422, shading ring 6, each side of two yoke plates 422 connects a root lead, first side of two yoke plates 422 is followed successively by the 4th right angle link plate 423, the 3rd adjusts plate 424, the 3rd U type link 425 and second strain clamp 426, second side of two yoke plates 422 is followed successively by: the 5th right angle link plate 427, the 4th adjusts plate 428, the 6th right angle link plate 429, second prolongs pull bar 430, the 4th U type link 431 and the 3rd strain clamp 432, shading ring 6 is fixedly mounted on the LS yoke plate 25, gold utensil is played shielding action, guarantee whole string gold utensil corona not under rated voltage.
Claims (4)
1, a kind of extra high voltage direct current transmission line three horizontal strain insulator-string gold utensils, comprise steering stem comp (2), connect tower head in steering stem comp (2) upper end by insulator (3) and connect gold utensil (1), at steering stem comp (2) lower end connexon lead gold utensil (4), it is characterized in that: described insulator (3) is 3, and respectively connect a tower head by 3 insulators (3) and connect gold utensil (1), described sub-conductor gold utensil (4) is 6.
2, extra high voltage direct current transmission line three horizontal strain insulator-string gold utensils according to claim 1 is characterized in that: also comprise a grading ring (5), this grading ring (5) is fixedly linked with steering stem comp (2); On described sub-conductor gold utensil (4), also be provided with shading ring (6).
3, extra high voltage direct current transmission line three horizontal strain insulator-string gold utensils according to claim 1 and 2, it is characterized in that: described steering stem comp (2) comprises that three become two yoke plates (21), the first parallel link plate (22), LV yoke plate (23), the second parallel link plate (24) and LS yoke plate (25), described 3 insulators (3) are connected with three upper ends that become two yoke plates (21) by socket-clevis eye (17), the three lower end ends that become two yoke plates (21) connect the first parallel link plate (22) successively, LV yoke plate (23), the second parallel link plate (24) and LS yoke plate (25), the lower end of LS yoke plate (25) connect described sub-conductor and connect gold utensil (4).
4, extra high voltage direct current transmission line three horizontal strain insulator-string gold utensils according to claim 3, it is characterized in that: described tower head connects gold utensil (1) and comprises gudgeon link plate (11), U type link (12), the first adjustment plate (13), parallel link plate (14), towing plate (15), ball-eye (16), and a U type link (12), the first adjustment plate (13), parallel link plate (14), towing plate (15) are arranged between gudgeon link plate (11) and the ball-eye (16); Described sub-conductor gold utensil (4) comprising: the first sub-conductor gold utensil (41) and the second sub-conductor gold utensil (42), the described first sub-conductor gold utensil (41) comprise the first right angle link plate (411) that the upper end is fixedly linked with LS yoke plate (25) and the first prolongation pull bar (412) that links to each other successively with the first right angle link plate (411), the second right angle link plate (413), second adjustment plate (414), the 2nd U type link (415) and first strain clamp (416); The described second sub-conductor gold utensil (42) comprises the 3rd right angle link plate (421) that upper end and LS yoke plate (25) are fixedly linked, the 4th right angle link plate (423) that connects two yoke plates (422) and be arranged on two yoke plates (422) first sides in the 3rd right angle link plate (421) lower end, the 3rd adjusts plate (424), the 3rd U type link (425), second strain clamp (426), be arranged on the 5th right angle link plate (427) of two yoke plates (422) second sides, the 4th adjusts plate (428), the 6th right angle link plate (429), second prolongs pull bar (430), the 4th U type link (431) and the 3rd strain clamp (432), described shading ring (6) is arranged on two yoke plates (422).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201857695U CN201251964Y (en) | 2008-09-09 | 2008-09-09 | Strain string hardware fittings with three-connection horizontal arrangement for a super-high voltage direct current transmission line |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201857695U CN201251964Y (en) | 2008-09-09 | 2008-09-09 | Strain string hardware fittings with three-connection horizontal arrangement for a super-high voltage direct current transmission line |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201251964Y true CN201251964Y (en) | 2009-06-03 |
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ID=40747637
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201857695U Expired - Lifetime CN201251964Y (en) | 2008-09-09 | 2008-09-09 | Strain string hardware fittings with three-connection horizontal arrangement for a super-high voltage direct current transmission line |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201251964Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104361958A (en) * | 2014-11-20 | 2015-02-18 | 国家电网公司 | Quintuplet double-hanging-point strain insulator string |
-
2008
- 2008-09-09 CN CNU2008201857695U patent/CN201251964Y/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104361958A (en) * | 2014-11-20 | 2015-02-18 | 国家电网公司 | Quintuplet double-hanging-point strain insulator string |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20090603 |
|
| CX01 | Expiry of patent term |