CN206099227U - Special high voltage direct current wall bushing - Google Patents
Special high voltage direct current wall bushing Download PDFInfo
- Publication number
- CN206099227U CN206099227U CN201620921150.0U CN201620921150U CN206099227U CN 206099227 U CN206099227 U CN 206099227U CN 201620921150 U CN201620921150 U CN 201620921150U CN 206099227 U CN206099227 U CN 206099227U
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- CN
- China
- Prior art keywords
- wall bushing
- direct current
- voltage direct
- current wall
- ultrahigh voltage
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Abstract
The utility model relates to a special high voltage direct current wall bushing, include: be fixed in the insulation part of ground connection section of thick bamboo both sides, run through insulation part's high voltage electrode and fix the telluric electricity field at ground connection section of thick bamboo inner wall, insulation part has two adjacent sub - sleeve pipes at least, and it is fixed as an organic whole to pass through the cab apron between the adjacent sub - sleeve pipe, and the wall bushing is inside to be provided with the target between telluric electricity field and high voltage electrode, the both ends of target are crossed the cab apron through two respectively and are fixed. Compare with traditional direct current wall bushing, the utility model discloses the sleeve pipe has that production cycle weak point, light in weight, low in manufacturing cost, bending strength are high, operation safe and reliable and showing advantage such as improvement electric property.
Description
Technical field
This utility model is related to a kind of extra-high voltage sleeve pipe, specifically a kind of new structure extra-high voltage direct-current set through walls
Pipe.
Background technology
With the development of national economy, the surge of resident and industrial electricity, transportion wire road electric pressure is to supertension
Develop with extra-high voltage direction, the country starts to build extra-high voltage 1100kV exchange transportion wire road and ± 800kV direct current conveying circuits,
And planning construction ± 1100kV direct current conveying circuits, therefore the extra-high voltage direct-current sleeve pipe matched with transportion wire road has wide
Market prospect.
Direct-current wall bushing adopts glue impregnated paper condenser type both at home and abroad now, general using two glue impregnated paper condenser-type terminal connection
Knot composition, lower insulation position fill SF6 gas-insulateds.This casing wt weight, long the production cycle, price are high, and DC bushing is due to outer
Portion's voltage's distribiuting is uneven, and sleeve pipe maker generally increases external insulation dry arcing distance to solve, and which not only adds product
Cost, also increases the manufacture difficulty of product.
The content of the invention
Technical problem to be solved in the utility model is to overcome the deficiencies in the prior art, there is provided a kind of extra-high voltage direct-current
Wall bushing, the sleeve pipe is with short production cycle, lightweight, low cost of manufacture, bending strength are high, safe and reliable to operation, significantly improves
Electric property.
In order to solve above technical problem, the ultrahigh voltage direct current wall bushing that this utility model is provided, including：It is fixed on and connects
The insulated part of ground cylinder both sides, through the high-field electrode of the insulated part, and is fixed on the ground electrode for being grounded cylinder inwall, its
It is characterised by：The insulated part at least has two adjacent sub-set pipes, is fixed as by rebound between adjacent sub-set pipe
Integrally, the wall bushing is internally provided with the target between ground electrode and high-field electrode, the target
Two ends fixed by two rebounds respectively, sub-set pipe internal surface uniform winding enamel-cover resistance wire.
In order to further solve above technical problem, this utility model also has following feature：
1st, the insulated part outer end is provided with end plate.
2nd, the sub-set pipe surface has silicon rubber umbrella.
3rd, it is grounded at cylinder equipped with end shield measurement terminal, current transformer and for the flange arrangement installed in body of wall.
4th, the sub-set pipe is glass steel material.
5th, the sub-set pipe is fixedly connected with mucilage binding between rebound and end plate.
6th, high-field electrode and upper head plate and bottom plate short circuit, target and upper end rebound and lower end rebound short circuit.
7th, it is insulation gas filled in sleeve pipe.
8th, the insulating gas is sulfur hexafluoride.
This utility model two ends insulated part is divided into two or more sub-set pipes, middle to be connected by rebound, sub-set pipe
Material is fiberglass, and outer surface has silicon rubber umbrella, is to solve the uneven situation of outer surface voltage caused by sub-set pipe, in son
Internal surface of casing uniform winding enamel-cover resistance wire, this layer of enamel-cover resistance wire can make sub-set pipe surface distribution of resistance more uniform,
When having space charge to occur at the high pressure, can be discharged by enamel-cover resistance wire, performance is put in the office for greatly improving product.Each zero
Part directly adopts mucilage binding structure, increased the bulk strength of product, and the production cycle shortens, weight（Only paper condenser
The a quarter of wall bushing weight）, manufacturing cost is reduced, bending strength is high and safe and reliable to operation.
High-field electrode carries ballast current conductor as sleeve pipe, in high potential.Target and the connection of two ends rebound, three
Isoelectric level, is calculated by designing, and makes voltage at target be about the half of terminal voltage.Ground electrode and ground connection cylinder connect
Connect, in ground potential.Ensure the piece electrical performance of sleeve pipe.
Description of the drawings
Fig. 1 is this utility model ultrahigh voltage direct current wall bushing structural representation.
In figure, label is schematically as follows：
1- high-field electrodes, 2- targets, 3- ground electrodes, 4- rebounds, 6- ground connection cylinders, 7- spring structures, 81- are exhausted
Save on edge, 82- insulation is lower to be saved, 83- silicon rubber umbrellas, 9- enamel-cover resistance wires；10- insulating gas, 11- end plates.
Specific embodiment
This utility model is described in further detail with reference to embodiment.But this utility model is not limited to given
Example.
As shown in figure 1, the present embodiment ultrahigh voltage direct current wall bushing, including：The insulated part of ground connection cylinder both sides is fixed on,
Through the high-field electrode of insulated part, and the ground electrode for being fixed on ground connection cylinder inwall.Ground connection cylinder at equipped with end shield measurement terminal,
Current transformer and the flange arrangement for being arranged on body of wall.Sleeve pipe passes through spring structure 7 and sealing member ensures cannula tip
Sealing, fills SF6 insulating gas 10 in sleeve pipe.Insulated part outer end is provided with end plate.In to scheme as a example by the insulated part of top（Connect
Ground cylinder both sides insulation system is identical）, insulated part is with two sub- sleeve pipes：Save in insulation and the lower section of insulation, save in insulation and exhausted
It is fixed as one by rebound between saving under edge.Lower section surface is saved and is insulated in insulation with silicon rubber umbrella, is saved in insulation
With the lower section inner surface uniform winding enamel-cover resistance wire of insulation, uniformly external insulation sheet resistance can be distributed, the harmful sky of release in time
Between electric charge.Wall bushing is internally provided with the target between ground electrode and high-field electrode, the two ends of target
Fixed by two rebounds respectively.In the present embodiment, the lower section that saves in insulation and insulate is glass steel material, on end plate, insulation
Section, rebound, the lower section mucilage binding of insulation are fixedly connected.As illustrated, the wall bushing of this example is provided with shading ring in the outer end of end plate.
High-field electrode 1 carries ballast current conductor, and end plate short circuit, in high potential as sleeve pipe.Ground electrode 3 and ground connection cylinder
6 connections, in ground potential.Target 2 and the rebound short circuit at two ends, three's isoelectric level are calculated by designing, can make electricity
Pressure is about high voltage half.Ensure the piece electrical performance of sleeve pipe.
In addition to the implementation, this utility model can also have other embodiment.Such as this utility model structure is used
In the technical scheme that electroceramics external insulation wall bushing, all employing equivalents or equivalent transformation are formed, this utility model is all fallen within
The protection domain of requirement.
Claims (9)
1. a kind of ultrahigh voltage direct current wall bushing, including：The insulated part of ground connection cylinder both sides is fixed on, through the insulated part
High-field electrode, and be fixed on ground connection cylinder inwall ground electrode, it is characterised in that：The insulated part at least has two phases
Adjacent sub-set pipe, is fixed as one by rebound between adjacent sub-set pipe, and the wall bushing is internally provided between ground connection
Target between electrode and high-field electrode, the two ends of the target are fixed by two rebounds respectively, sub-set pipe
Inner surface uniform winding enamel-cover resistance wire.
2. ultrahigh voltage direct current wall bushing according to claim 1, it is characterised in that：The insulated part outer end is provided with
End plate.
3. ultrahigh voltage direct current wall bushing according to claim 1, it is characterised in that：The sub-set pipe surface has silicon rubber
Glue umbrella cover.
4. ultrahigh voltage direct current wall bushing according to claim 1, it is characterised in that：End shield measurement end is housed at ground connection cylinder
Son, current transformer and the flange arrangement for being arranged on body of wall.
5. ultrahigh voltage direct current wall bushing according to claim 1, it is characterised in that：The sub-set pipe is glass steel
Matter.
6. ultrahigh voltage direct current wall bushing according to claim 1, it is characterised in that：The sub-set pipe and rebound and end
Between plate, mucilage binding is fixedly connected.
7. ultrahigh voltage direct current wall bushing according to claim 1, it is characterised in that：High-field electrode and upper head plate and lower end
Plate short circuit, target and upper end rebound and lower end rebound short circuit.
8. the ultrahigh voltage direct current wall bushing according to any one of claim 1-7, it is characterised in that：Filled with insulation in sleeve pipe
Gas.
9. ultrahigh voltage direct current wall bushing according to claim 8, it is characterised in that：The insulating gas is lithium
Sulfur.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620921150.0U CN206099227U (en) | 2016-08-22 | 2016-08-22 | Special high voltage direct current wall bushing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620921150.0U CN206099227U (en) | 2016-08-22 | 2016-08-22 | Special high voltage direct current wall bushing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206099227U true CN206099227U (en) | 2017-04-12 |
Family
ID=58469974
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620921150.0U Expired - Fee Related CN206099227U (en) | 2016-08-22 | 2016-08-22 | Special high voltage direct current wall bushing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206099227U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106099794A (en) * | 2016-08-22 | 2016-11-09 | 江苏智达高压电气有限公司 | A kind of ultrahigh voltage direct current wall bushing |
| CN110098583A (en) * | 2019-05-14 | 2019-08-06 | 云南电网有限责任公司电力科学研究院 | A kind of wall bushing and preparation method thereof |
-
2016
- 2016-08-22 CN CN201620921150.0U patent/CN206099227U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106099794A (en) * | 2016-08-22 | 2016-11-09 | 江苏智达高压电气有限公司 | A kind of ultrahigh voltage direct current wall bushing |
| CN110098583A (en) * | 2019-05-14 | 2019-08-06 | 云南电网有限责任公司电力科学研究院 | A kind of wall bushing and preparation method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170412 Termination date: 20210822 |