CN201289768Y - Duplex horizontal arrangement strain tolerance string hardware fittings for UHV DC transmission line - Google Patents
Duplex horizontal arrangement strain tolerance string hardware fittings for UHV DC transmission line Download PDFInfo
- Publication number
- CN201289768Y CN201289768Y CNU2008201857708U CN200820185770U CN201289768Y CN 201289768 Y CN201289768 Y CN 201289768Y CN U2008201857708 U CNU2008201857708 U CN U2008201857708U CN 200820185770 U CN200820185770 U CN 200820185770U CN 201289768 Y CN201289768 Y CN 201289768Y
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- CN
- China
- Prior art keywords
- plate
- gold utensil
- link plate
- right angle
- yoke
- Prior art date
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- Expired - Fee Related
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Abstract
The utility model discloses a duplex horizontally arranged tension string hardware fitting of an ultra-high voltage DC transmission line. The tension string hardware fitting comprises an LS link plate; the upper end of the LS link plate is connected with tower head connected hardware fittings through two insulators, and the lower end of the LS link plate is connected to branch conducting wire hardware fittings; each of the two insulators is connected with one tower head connected hardware fitting; and the number of the branch conducting wire hardware fittings is six. The tension string hardware fitting further comprises a grading ring fixedly connected with the LS link plate. Shielding rings are further arranged on the branch conducting wire hardware fittings. Compared with the prior art, the tower head hanging point distance can be adjusted according to the need of an electrical gap, so as to effectively guarantee the electrical gap between the insulators; the grading ring and the shielding rings are mounted in the string, so that pressure equalizing is applied to the insulators, the hardware fittings are shielded, corona is prevented from generating under a rated voltage, and the tension string hardware fitting has the characteristics of simple structure, reasonable arrangement, reliable connection, etc.
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 a kind of performance simple in structure, anticorona the good horizontal strain insulator-string gold utensil of 2 * 530kN duplex.
Technical solution of the present utility model is as follows: the horizontal strain insulator-string gold utensil of a kind of extra high voltage direct current transmission line duplex, comprise the LS yoke plate, connect tower head in LS yoke plate upper end by insulator and connect gold utensil, at LS yoke plate lower end connexon lead gold utensil, described insulator is 2, and respectively connect a tower head by 2 insulators and connect gold utensil, described sub-conductor gold utensil is 6.
Also comprise a grading ring, this grading ring and LS yoke plate 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 the 3rd right angle link plate that the upper end is fixedly linked with the LS yoke plate, the 4th right angle link plate, the 3rd adjustment plate, the 3rd U type link, second strain clamp that is connected two yoke plates and is arranged on two yoke plates, first side in link plate lower end, the 3rd right angle, 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 the horizontal strain insulator-string of duplex, 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.
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 horizontal strain insulator-string of the utility model 2 * 530kN duplex is made up of following product, and concrete connected mode is:
The first, being connected gold utensil 1 by tower head between LS yoke plate 2 and the iron tower links to each other, it is 2 that tower head connects gold utensil 1, its spacing is 1000mm, comprise successively: the upper end is adjusted plate 13, parallel link plate 14, towing plate 15, ball-eye 16, is connected connection insulator 3 between the gold utensil 1 with tower head at LS yoke plate 2 with gudgeon link plate 11, U type link 12, first that tower head connects, the quantity of insulator 3 also is 2, insulator 3 is connected on the LS yoke plate 2, also is installed with grading ring 5 on LS yoke plate 2 by socket-clevis eye 17, and grading ring 5 is used for insulator 3 is played all pressure effects.
The second, being connected gold utensil 4 by sub-conductor between LS yoke plate 2 and the lead connects, this sub-conductor connects gold utensil 4 and comprises two kinds, the first sub-conductor gold utensil and the second sub-conductor gold utensil, the first sub-conductor gold utensil 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, 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 two yoke plates 422, gold utensil is played shielding action, guarantee whole string gold utensil corona not under rated voltage.
Claims (3)
1, the horizontal strain insulator-string gold utensil of a kind of extra high voltage direct current transmission line duplex, comprise LS yoke plate (2), connect tower head in LS yoke plate (2) upper end by insulator (3) and connect gold utensil (1), at LS yoke plate (2) lower end connexon lead gold utensil (4), it is characterized in that: described insulator (3) is 2, and respectively connect a tower head by 2 insulators (3) and connect gold utensil (1), described sub-conductor gold utensil (4) is 6.
2, the horizontal strain insulator-string gold utensil of extra high voltage direct current transmission line duplex according to claim 1 is characterized in that: also comprise a grading ring (5), this grading ring (5) is fixedly linked with LS yoke plate (2); On described sub-conductor gold utensil (4), also be provided with shading ring (6).
3, the horizontal strain insulator-string gold utensil of extra high voltage direct current transmission line duplex according to claim 1, 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 and the second sub-conductor gold utensil, the described first sub-conductor gold utensil comprise the first right angle link plate (411) that the upper end is fixedly linked with LS yoke plate (2) 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 comprises the 3rd right angle link plate (421) that upper end and LS yoke plate (2) 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 |
|---|---|---|---|
| CNU2008201857708U CN201289768Y (en) | 2008-09-09 | 2008-09-09 | Duplex horizontal arrangement strain tolerance string hardware fittings for UHV DC transmission line |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201857708U CN201289768Y (en) | 2008-09-09 | 2008-09-09 | Duplex horizontal arrangement strain tolerance string hardware fittings for UHV DC transmission line |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201289768Y true CN201289768Y (en) | 2009-08-12 |
Family
ID=40981449
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201857708U Expired - Fee Related CN201289768Y (en) | 2008-09-09 | 2008-09-09 | Duplex horizontal arrangement strain tolerance string hardware fittings for UHV DC transmission line |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201289768Y (en) |
-
2008
- 2008-09-09 CN CNU2008201857708U patent/CN201289768Y/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090812 Termination date: 20140909 |
|
| EXPY | Termination of patent right or utility model |