CN203366866U - Ultra-high pressure DC line anti-off string composite insulator segmented single V type suspension string - Google Patents
Ultra-high pressure DC line anti-off string composite insulator segmented single V type suspension string Download PDFInfo
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- CN203366866U CN203366866U CN 201320293889 CN201320293889U CN203366866U CN 203366866 U CN203366866 U CN 203366866U CN 201320293889 CN201320293889 CN 201320293889 CN 201320293889 U CN201320293889 U CN 201320293889U CN 203366866 U CN203366866 U CN 203366866U
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Abstract
An ultra-high pressure DC line anti-off string composite insulator segmented single V type suspension string, which belongs to the technical field of electric power. The V type suspension string comprises two suspension strings, each suspension string comprises two composite insulators which are connected with an unbalanced slice by liner type closed bowl heads; the upper end of each suspension string is respectively connected with a liner type closed bowl head, the upper end of the liner type closed bowl head is connected with an EB suspension-head anchor clamp by a rectangular suspension plate; the lower end of each suspension string is connected with the liner type closed bowl head, the other end of the liner type closed bowl head is connected with a same suspension connection plate by the rectangular suspension plate; an equalizing ring is respectively mounted on a ball head rod of each suspension string, and a suspension clamp is connected on the suspension connection plate. The ultra-high pressure DC line anti-off string composite insulator segmented single V type suspension string has features of higher flexibility, utilization of closed ball, cavity connection ways on the two ends of the suspension string, improvement in the reliability on the hinge part of the ball and cavity, and increased stability.
Description
Technical field
The utility model relates to the power technology field, particularly the technical field of structures of UHVDC Transmission Lines string falling prevention synthetic insulator merogenesis simply connected V-type suspension string.
Background technology
In recent years, along with the develop rapidly of China's power grid construction and the continuous lifting of technical merit, the V-type insulator string day by day is widely applied on transmission line.Particularly in ± 800kV extra-high voltage direct-current engineering, the advantage of V-type composite insulation substring is very remarkable, is conducive to reduce the accidents such as wire windage yaw, pollution flashover on the one hand, has improved the operation of power networks reliability; Be conducive on the other hand dwindle the circuit width of corridor, economize the land resource.
But because variation has occurred V-type composite insulation substring stress, under new service condition, also brought new problem, especially on compact line, repeatedly at strong wind, wave under condition, composite insulation substring steel pin has occurred deviate from the situation of string from socket-clevis eye.
In addition, along with the raising of transmission line electric pressure, the reinforcement of external insulator level, insulator string length constantly lengthens, and has increased the difficulty that the synthetic insulator product is manufactured and transported.
Therefore, in order to guarantee the operation of electrical network long-term safety and to meet the needs that power grid construction develops, optimize and improve traditional " bulb-bowl head " the end metal fitting bind mode of synthetic insulator, very urgent.
The utility model content
The purpose of this utility model is in order to overcome the deficiencies in the prior art, and a kind of UHVDC Transmission Lines string falling prevention synthetic insulator merogenesis simply connected V-type suspension string is provided.
The utility model comprises two suspension insulators, and every suspension insulator comprises two synthetic insulators, lays particular stress on sheet by lining type sealed socket and same respectively between two synthetic insulators and is connected; The upper end of every suspension insulator is connected with respectively lining type sealed socket, in the upper end of lining type sealed socket, by the right angle link plate, with the EB hardware, is connected; The lower end of every suspension insulator is connected on lining type sealed socket, and the other end of lining type sealed socket is connected on same hanging yoke plate by the right angle link plate; The V-shaped arrangement on hanging yoke plate of described two suspension insulators is installed respectively grading ring on the bulb rod of described each suspension insulator, on described hanging yoke plate, is connected with suspension clamp.
Due to the stressed particularity of the suspension insulator of V-shaped arrangement, if pressurized is seriously inconsistent under the strong wind operating mode, can cause locking pin distortion ball-and-socket Joint failure, composite insulation substring steel pin deviates from the string accident from socket-clevis eye.For guaranteeing the safe and reliable of design, gold utensil is connected on overall structure and can forms soft chain except considering, has especially guaranteed the closure of gold utensil insulator string in ball, bowl hinged place.Above-mentioned suspension insulator is the composite insulation substring, reliable for guaranteeing line security, when the gold utensil type selecting, stress in particular ball, nest gold utensil on the fair line road, all there is the flexibility of rotation perpendicular to line direction, therefore above-mentioned every suspension insulator comprises two synthetic insulators, and two synthetic insulators are laid particular stress on sheet by lining type sealed socket and one respectively and connected into a whole piece suspension insulator.After every suspension insulator upper end adopts lining type sealed socket to connect the right angle link plate, be connected on hardware, lower end also adopts lining type sealed socket to connect right angle link plate, hanging yoke plate.Compare traditional V-type insulator string and connect, there is higher flexibility, and adopt closed ball, nest connected mode at the suspension insulator two ends, improved the reliability of ball, nest hinged place, strengthened the stability under various operating modes.
Technique scheme can also be done following improvement: hanging yoke plate can install heavy punch piece additional as required.
The accompanying drawing explanation
Fig. 1 is a kind of structural representation of the present utility model.
Embodiment
As shown in Figure 1, the utility model comprises two suspension insulators 1, and every suspension insulator 1 comprises that laying particular stress on sheet 3 by lining type sealed socket 4 and same respectively between 2, two synthetic insulators 2 of two synthetic insulators is connected; The upper end of every suspension insulator 1 is connected with respectively lining type sealed socket 4, in the upper end of lining type sealed socket 4, by right angle link plate 5, with EB hardware 6, is connected; The lower end of every suspension insulator 1 is connected on lining type sealed socket 4, and the other end of lining type sealed socket 4 is connected on same hanging yoke plate 8 by right angle link plate 5; Article two, suspension insulator 1 V-shaped arrangement on hanging yoke plate 8.
On the bulb rod of each suspension insulator 1, grading ring 7 is installed respectively, is connected with symmetrically respectively suspension clamp 9 and heavy punch piece 10 on hanging yoke plate 8.
Claims (2)
1. UHVDC Transmission Lines string falling prevention synthetic insulator merogenesis simply connected V-type suspension string, comprise two suspension insulators, it is characterized in that: every suspension insulator comprises two synthetic insulators, lays particular stress on sheet by lining type sealed socket and same respectively between two synthetic insulators and is connected; The upper end of every suspension insulator is connected with respectively lining type sealed socket, in the upper end of lining type sealed socket, by the right angle link plate, with the EB hardware, is connected; The lower end of every suspension insulator is connected on lining type sealed socket, and the other end of lining type sealed socket is connected on same hanging yoke plate by the right angle link plate; The V-shaped arrangement on hanging yoke plate of described two suspension insulators is installed respectively grading ring on the bulb rod of described each suspension insulator, on described hanging yoke plate, is connected with suspension clamp.
2. UHVDC Transmission Lines string falling prevention synthetic insulator merogenesis simply connected V-type suspension string according to claim 1, is characterized in that: on described hanging yoke plate, be connected with heavy punch piece.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320293889 CN203366866U (en) | 2013-05-27 | 2013-05-27 | Ultra-high pressure DC line anti-off string composite insulator segmented single V type suspension string |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320293889 CN203366866U (en) | 2013-05-27 | 2013-05-27 | Ultra-high pressure DC line anti-off string composite insulator segmented single V type suspension string |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203366866U true CN203366866U (en) | 2013-12-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320293889 Expired - Fee Related CN203366866U (en) | 2013-05-27 | 2013-05-27 | Ultra-high pressure DC line anti-off string composite insulator segmented single V type suspension string |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203366866U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109961618A (en) * | 2019-03-22 | 2019-07-02 | 国网湖南省电力有限公司 | Composite insulator V-type arranges string falling prevention improvement and alarming method for power |
-
2013
- 2013-05-27 CN CN 201320293889 patent/CN203366866U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109961618A (en) * | 2019-03-22 | 2019-07-02 | 国网湖南省电力有限公司 | Composite insulator V-type arranges string falling prevention improvement and alarming method for power |
| CN109961618B (en) * | 2019-03-22 | 2020-09-01 | 国网湖南省电力有限公司 | Composite insulator V-shaped arrangement anti-string-falling treatment and warning method |
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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: 20131225 Termination date: 20210527 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |