CN202711878U - Singly connected V-shaped porcelain insulator string for +/-500 kV double-circuit lines on same tower - Google Patents
Singly connected V-shaped porcelain insulator string for +/-500 kV double-circuit lines on same tower Download PDFInfo
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- CN202711878U CN202711878U CN 201220378278 CN201220378278U CN202711878U CN 202711878 U CN202711878 U CN 202711878U CN 201220378278 CN201220378278 CN 201220378278 CN 201220378278 U CN201220378278 U CN 201220378278U CN 202711878 U CN202711878 U CN 202711878U
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Abstract
The utility model provides a singly connected V-shaped porcelain insulator string for +/-500 kV double-circuit lines on a same tower, and relates to an insulator suspension string for a large-capacity transmission line. Ball and bowl hardware fittings of the singly connected V-shaped porcelain insulator string for the +/-500 kV double-circuit lines on the same tower have rotation flexibility in the direction along the lines or perpendicular to the lines. The singly connected V-shaped porcelain insulator string for the +/-500 kV double-circuit lines on the same tower comprises two suspension insulator strings arranged in a V-shaped manner. One end of each suspension insulator string is sequentially connected with a ball head hanging loop, a U-shaped hanging loop, a DB type adjusting plate, U-shaped hanging loops and an EB hanging point hardware fitting. The other ends of the suspension insulator strings are connected with a same suspension link plate through bowl head hanging loops and UL-shaped hanging loops. Equalizer rings are installed on both of the bowl head hanging loops. Suspension wire clamps are installed on the suspension link plate. The singly connected V-shaped porcelain insulator string for the +/-500 kV double-circuit lines on the same tower is safe and reliable under a variety of working conditions, the ball and bowl hardware fittings have good connection flexibility and are flexible to rotate, and that a ball head falls off from a bowl head is avoided.
Description
Technical field
The utility model relates to a kind of for the insulator suspension string on the large capacity transmission circuit.
Background technology
Electric armour clamp will stand to ice on the transmission line of long-time running, the baptism of snow, storm, strong wind, sleet, icing easily cause the faults such as wire ice-shedding, phase fault, wire collision lightning conducter, so electric armour clamp must possess higher mechanical strength and enough coefficient of safetys.The V-type suspension string is the important gold utensil in the transmission line, bear the wind-force on weight, icing weight and the horizontal direction of vertical direction wire, because the stressed particularity of V-type suspension string, need to guarantee that the gold utensil insulator string is in the flexibility of ball, bowl hinged place, because under the strong wind operating mode, the serious inconsistent meeting of pressurized causes bulb to deviate from accident from the bowl head, and also there is certain problem in the V-type suspension string of existing ± 500kV transmission line aspect the connection of the soft chain gold utensil of formation.
Summary of the invention
That the utility model provides is a kind of ± and 500kV common-tower double-return circuit all has the flexibility of rotation with simply connected V-type porcelain insulating substring, its ball, bowl gold utensil on the fair line road, perpendicular to line direction.
For achieving the above object, the utility model is taked following technical scheme:
± 500kV common-tower double-return circuit simply connected V-type porcelain insulating substring, comprise two V-shaped suspension insulators, one end of every suspension insulator successively connecting ball head link, U-shaped link, DB type is adjusted plate, U-shaped link and EB hardware, the other end is connected with same hanging yoke plate by bowl bulb hanging ring, UL shape link successively, at the bowl bulb hanging ring grading ring is installed, at hanging yoke plate suspension clamp is installed.
Because the stressed particularity of V-type suspension insulator is if the serious inconsistent meeting of pressurized causes bulb to deviate from accident from the bowl head under the strong wind operating mode.For guaranteeing the safe and reliable of design, gold utensil connects structurally to be considered emphatically to form soft chain, guarantees that especially the gold utensil insulator string is in the flexibility of ball, bowl hinged place.Above-mentioned suspension insulator is the porcelain insulating substring, reliable for guaranteeing line security, when porcelain insulating substring gold utensil type selecting, stress ball in particular, the bowl gold utensil is on the fair line road, the flexibility that all has rotation perpendicular to line direction, after therefore above-mentioned suspension insulator upper end adopts the ball-eye of oval ring to connect the U-shaped link, be connected on the hardware by other gold utensil again, after the lower end adopts the bowl bulb hanging ring of oval ring to connect UL shape link, be connected with the hanging hole of hanging yoke plate again, comparing traditional V-type suspension insulator connects, ball-eye at the suspension insulator two ends has respectively increased a ring-ring connecting hinge contact with bowl bulb hanging ring junction, improved ball, the flexibility of bowl hinged place, thereby formed the soft chain that gold utensil connects, also strengthen simultaneously ball-eye and bowl bulb hanging ring on the fair line road and perpendicular to the flexibility that line direction rotates, improved the stability under the various operating modes.
Above-mentioned bowl bulb hanging ring replaces with WH type bowl bulb hanging ring with traditional WS type socket-clevis eye, has increased the degree of freedom of rotating between bowl bulb hanging ring and the hanging yoke plate, has improved the connection reliability under the various operating modes.WS type socket-clevis eye is connected with the grooved that is connected to of hanging yoke plate, only can be along freely rotating perpendicular to line direction, fair line road direction then can't be rotated, after adopting WH type bowl bulb hanging ring, on the fair line road, all can freely rotate perpendicular to line direction, consisted of soft chain structure, under the strong wind operating mode, can effectively discharge the energy at ball bowl pin joint place, the accident of avoiding the wearing and tearing of R pin, bulb to deviate from from the bowl head.
Technique scheme can also be done following improvement: hanging yoke plate can install heavy punch piece additional as required, also is provided with the preformed lines that protect in the wire folder hole of suspension clamp.
The utility model is safe and reliable under various operating modes, and the connection of ball, bowl gold utensil is flexible, rotate flexibly, has prevented that bulb from deviating from the generation of accident from the bowl head.
Description of drawings
Fig. 1 is the structural representation of embodiment.
Description of reference numerals: 1-suspension insulator; The 101-suspension insulator; The 2-ball-eye; 3-U shape link; The 4-DB type is adjusted plate; The 5-EB hardware; 6-UL shape link; The 7-hanging yoke plate; The 8-heavy punch piece; 9-WH type bowl bulb hanging ring; The 10-grading ring; The 11-suspension clamp; The preformed lines that protect of 12-.
Embodiment
Below in conjunction with drawings and Examples the utility model content is described further.
Embodiment 1
Present embodiment is ± mountain region, the 20mm ice formation JL/G1A-900/75 wire of 500KV common-tower double-return DC transmission engineering is with 2X420kN simply connected V-type suspension insulator.When height above sea level is 1000m, it is several 40 that every suspension insulator 1 comprises the suspension insulator sheet, and when height above sea level is 1500m, every suspension insulator 1 comprises suspension insulator sheet several 42, when height above sea level is 2000m, every suspension insulator 1 comprises suspension insulator sheet several 43.
As shown in Figure 1, present embodiment comprises two V-shaped suspension insulators 1, and suspension insulator 1 is comprised of suspension insulator 101.One end of every suspension insulator 1 successively connecting ball head link 2, U-shaped link 3, DB type is adjusted plate 4, U-shaped link 3 and EB hardware 5, the other end is connected with hanging yoke plate 7 by bowl bulb hanging ring, UL shape link 6 successively, hanging yoke plate 7 installs heavy punch piece 8 additional, the bowl bulb hanging ring is WH type bowl bulb hanging ring 9, at WH type bowl bulb hanging ring 9 grading ring 10 is installed, at hanging yoke plate 7 suspension clamp 11 is installed.Be provided with the preformed lines 12 that protect in the wire folder hole of suspension clamp 11.
Embodiment 2
Present embodiment is ± mountain region, the 20mm ice formation JL/G1A-900/75 wire of 500KV common-tower double-return DC transmission engineering is with 2X300kN simply connected V-type suspension insulator.When height above sea level is 1000m, it is several 40 that every suspension insulator 1 comprises the suspension insulator sheet, and when height above sea level is 1500m, every suspension insulator 1 comprises suspension insulator sheet several 41, when height above sea level is 2000m, every suspension insulator 1 comprises suspension insulator sheet several 43.
As shown in Figure 1, the structure of present embodiment is identical with embodiment 1.
Claims (4)
1. ± 500kV common-tower double-return circuit simply connected V-type porcelain insulating substring, comprise two V-shaped suspension insulators, it is characterized in that: an end of every suspension insulator successively connecting ball head link, U-shaped link, DB type is adjusted plate, U-shaped link and EB hardware, the other end is connected with same hanging yoke plate by bowl bulb hanging ring, UL shape link successively, at the bowl bulb hanging ring grading ring is installed, at hanging yoke plate suspension clamp is installed.
2. as claimed in claim 1 ± 500kV common-tower double-return circuit is with simply connected V-type porcelain insulating substring, and it is characterized in that: described bowl bulb hanging ring is WH type bowl bulb hanging ring.
3. as claimed in claim 1 ± 500kV common-tower double-return circuit is characterized in that: on the described hanging yoke plate heavy punch piece is housed with simply connected V-type porcelain insulating substring.
4. as claimed in claim 1 ± 500kV common-tower double-return circuit is characterized in that: be provided with the preformed lines that protect in the wire folder hole of described suspension clamp with simply connected V-type porcelain insulating substring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220378278 CN202711878U (en) | 2012-07-30 | 2012-07-30 | Singly connected V-shaped porcelain insulator string for +/-500 kV double-circuit lines on same tower |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220378278 CN202711878U (en) | 2012-07-30 | 2012-07-30 | Singly connected V-shaped porcelain insulator string for +/-500 kV double-circuit lines on same tower |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202711878U true CN202711878U (en) | 2013-01-30 |
Family
ID=47592158
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220378278 Expired - Fee Related CN202711878U (en) | 2012-07-30 | 2012-07-30 | Singly connected V-shaped porcelain insulator string for +/-500 kV double-circuit lines on same tower |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202711878U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113783152A (en) * | 2021-09-24 | 2021-12-10 | 何林轩 | Pin-free special connection hardware fitting for power transmission line |
-
2012
- 2012-07-30 CN CN 201220378278 patent/CN202711878U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113783152A (en) * | 2021-09-24 | 2021-12-10 | 何林轩 | Pin-free special connection hardware fitting for power transmission line |
| CN113783152B (en) * | 2021-09-24 | 2024-03-19 | 何林轩 | Pin-free special connecting fitting for power transmission line |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130130 Termination date: 20130730 |