CN202473432U - Insulator preventing flashover discharge - Google Patents
Insulator preventing flashover discharge Download PDFInfo
- Publication number
- CN202473432U CN202473432U CN201220074020XU CN201220074020U CN202473432U CN 202473432 U CN202473432 U CN 202473432U CN 201220074020X U CN201220074020X U CN 201220074020XU CN 201220074020 U CN201220074020 U CN 201220074020U CN 202473432 U CN202473432 U CN 202473432U
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- Prior art keywords
- insulator
- low pressure
- prevents
- flashover discharge
- shielding cover
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Abstract
The utility model relates to the field of an electric power device, in particular to an insulator. The insulator preventing the flashover discharge comprises an insulator main body which is made of an insulation material, wherein the insulator main body comprises an inner insulation pipe body with a through center and an outer insulation body which is sleeved outside the inner insulation pipe body; and the inner wall of the inner insulation pipe body is provided with a high-voltage shielding cover for realizing the high-voltage shielding, and a low-voltage shielding cover which is grounded is arranged between the inner insulation pipe body and the outer insulation body. The shielding layer wraps inside the insulator main body, so that the distribution of an electric field is improved, the electric stress of the electric field for the insulation material is reduced, the corona discharge can be reduced or eliminated, the service life of the insulator main body is prolonged, and the reliable running of an electric grid system can be ensured.
Description
Technical field
The utility model relates to field of electrical equipment, relates in particular to a kind of insulator.
Background technology
Insulator is to supply to be in electric equipment or the conductor electric insulation of different potentials and the device that mechanical fixation is used, and is the important components and parts in the equipment for power transmission and distribution.Wherein composite insulator is little, in light weight and mechanical strength is high because of its size, brings great convenience for transportation, safety and maintenance, and good condition is provided for the development of simplifying tower structure and compact line.Yet insulator is easy to produce flashover under high-tension effect, influences the life-span of insulator and the reliability service of network system.
The utility model content
The purpose of the utility model is to provide a kind of insulator that prevents the flashover discharge, solves above technical problem.
The technical problem that the utility model solved can adopt following technical scheme to realize:
Prevent the insulator of flashover discharge, comprise the insulator main body that an insulating material is processed, it is characterized in that, said insulator main body comprises the interior insulation body that the center connects and is sleeved on the outer insulator of external of interior insulated tube;
The inwall of insulation body is provided with the high-tension shielding cover of realizing high-tension shielding in said, and the centre of said interior insulation body and said outer insulator is provided with the low pressure radome of a ground connection.
The interior insulation body processed by fiberglass reinforced plastics of insulation body in said is born the function of built-in electrical insulation and mechanical load; The outer insulator that said outer insulator adopts silicon rubber to process, outer insulator adopt the silicon rubber with hydrophobicity and resistance to soiling to process.
The two ends of said insulator main body are provided with end accessory, the end accessory that said end accessory adopts aluminium alloy to process.
Insulation body, said outer insulator, said high-tension shielding cover and said low pressure radome are integral through poured with epoxy resin in said.Epoxy resin is a kind of organic insulating material with good electrical insulation property and good Thermocurable.
The utility model improves Electric Field Distribution through coating screen in the insulator body interior, reduces the electric stress of electric field to insulating material, reduces or eliminates corona discharge, prolongs the useful life of insulator main body, guarantees the reliability service of network system.
Said high-tension shielding cover is provided with at least two binding posts that adopt soldering to draw, and said binding post is electrically connected with the bus that passes said insulator main body.
The tubular shielding new cover that said high-tension shielding cover adopts copper mesh to process.Said high-tension shielding cover adopts the stretching copper mesh, the tubular shielding new cover that also can process for aluminium net, aluminium alloy net, stainless (steel) wire.
The two ends up and down of the said shielding new cover of said high-tension shielding cover are provided with flange, so that eliminate burr.
Said high-tension shielding cover is provided with diamond hole, and the length of side of said diamond hole is 2-3mm.Said high-tension shielding cover is provided with other passes, like hexangle type, circular hole, triangular form, fish scale hole.
Said low pressure radome comprises an annular stent, is wound in the screen that the semi-conducting material on the said annular stent is processed, and is provided with lead in the said screen, the lead that said lead adopts the coiling of tin-coated copper conductor to form.
Said low pressure radome is provided with four grounded at least terminal, and at least one said earth terminal is connected with lead.Said low pressure radome reliably is connected with ground, guarantees can not cause the discharge that suspends.
Because the low pressure radome is provided with the screen that semi-conducting material is processed; The residing high voltage electric field of each point position is different; There is potential difference in point-to-point transmission, might form internal current, so low pressure radome diverse location each point is necessary reliably to connect with conductor or conductive materials; Force ground connection then, change internal electric field and distribute.
The inboard of said low pressure radome is provided with the insulating barrier that electrician's paper roll is processed.The outside of said low pressure radome is provided with the enhancement layer that fiberglass gridding cloth is processed, to strengthen the epoxy resin interface strength of injection moulding.
Beneficial effect: owing to adopt technique scheme; The utility model is through coating screen in the insulator body interior; Improve Electric Field Distribution, reduce the electric stress of electric field, reduce or eliminate corona discharge insulating material; Prolong the useful life of insulator main body, guarantee the reliability service of network system.
Description of drawings
Fig. 1 is the structural representation of the utility model;
Fig. 2 is the structural representation of the high-tension shielding cover of the utility model;
Fig. 3 is the structural representation of the low pressure radome of the utility model.
Embodiment
For technological means, creation characteristic that the utility model is realized, reach purpose and be easy to understand with effect and understand, below in conjunction with the further elaboration the utility model of concrete diagram.
With reference to Fig. 1, prevent the insulator of flashover discharge, comprise the insulator main body 1 that an insulating material is processed, insulator main body 1 comprises the interior insulation body 11 that the center connects and is sleeved on the outer insulator 12 of interior insulation body 11 outsides.The inwall of interior insulation body 11 is provided with the high-tension shielding cover 2 of realizing high-tension shielding, and the centre of interior insulation body 11 and outer insulator 12 is provided with the low pressure radome 3 of a ground connection.In insulation body 11, outer insulator 12, high-tension shielding cover 2 and low pressure radome 3 be integral through poured with epoxy resin.
The utility model is through coating high-tension shielding cover 2 and low pressure radome 3 in insulator main body 1 inside; Improve Electric Field Distribution, reduce the electric stress of electric field, reduce or eliminate corona discharge insulating material; Prolong the useful life of insulator main body 1, guarantee the reliability service of network system.
In the interior insulation body 11 processed by fiberglass reinforced plastics of insulation body 11, bear the function of built-in electrical insulation and mechanical load.The outer insulator 12 that outer insulator 12 adopts silicon rubber to process, outer insulator 12 adopts the silicon rubber with hydrophobicity and resistance to soiling to process.The two ends of insulator main body 1 are provided with end accessory, the end accessory that end accessory adopts aluminium alloy to process.
With reference to Fig. 2, high-tension shielding cover 2 is provided with at least two binding posts 21 that adopt soldering to draw, and binding post 21 is electrically connected with the bus that passes insulator main body 1.The tubular shielding new cover that high-tension shielding cover 2 adopts copper mesh to process.High-tension shielding cover 2 adopts the stretching copper mesh, the shielding new cover that also can process for aluminium net, aluminium alloy net, stainless (steel) wire.The two ends up and down of high-tension shielding cover 2 are provided with flange, so that eliminate burr.High-tension shielding cover 2 is provided with diamond hole, the length of side 2-3mm of diamond hole.Also can be provided with other passes on the high-tension shielding cover 2, like hexangle type, circular hole, triangular form, fish scale hole.
With reference to Fig. 3, low pressure radome 3 comprises an annular stent, is wound in the screen that the semi-conducting material on the annular stent is processed, and is provided with lead in the screen, the lead that lead adopts the coiling of tin-coated copper conductor to form.
Low pressure radome 3 is provided with four grounded at least terminal 33, and at least one earth terminal 33 is connected with lead.Low pressure radome 3 reliably is connected with ground, guarantees can not cause the discharge that suspends.
Because low pressure radome 3 is provided with the screen that semi-conducting material is processed; The residing high voltage electric field of each point position is different; There is potential difference in point-to-point transmission, might form internal current, so low pressure radome 3 diverse location each points are necessary reliably to connect with conductor or conductive materials; Force ground connection then, change internal electric field and distribute.
The inboard of low pressure radome 3 is provided with the insulating barrier 31 that electrician's paper roll is processed.The outside of low pressure radome 3 is provided with the enhancement layer 32 that fiberglass gridding cloth is processed, to strengthen the epoxy resin interface strength of injection moulding.
More than show and described basic principle of the utility model and the advantage of principal character and the utility model.The technical staff of the industry should understand; The utility model is not restricted to the described embodiments; The principle of describing in the foregoing description and the specification that the utility model just is described; Under the prerequisite that does not break away from the utility model spirit and scope, the utility model also has various changes and modifications, and these variations and improvement all fall in the utility model scope that requires protection.The utility model requires protection range to be defined by appending claims and equivalent thereof.
Claims (8)
1. prevent the insulator of flashover discharge, comprise the insulator main body that an insulating material is processed, it is characterized in that, said insulator main body comprises the interior insulation body that the center connects and is sleeved on the outer insulator of external of interior insulated tube;
The inwall of insulation body is provided with the high-tension shielding cover of realizing high-tension shielding in said, and the centre of said interior insulation body and said outer insulator is provided with the low pressure radome of a ground connection.
2. the insulator that prevents the flashover discharge according to claim 1 is characterized in that, the interior insulation body that said interior insulation body is processed by fiberglass reinforced plastics, the outer insulator that said outer insulator adopts silicon rubber to process.
3. the insulator that prevents the flashover discharge according to claim 1 is characterized in that, said high-tension shielding cover is provided with at least two binding posts that adopt soldering to draw, and said binding post is electrically connected with the bus that passes said insulator main body.
4. the insulator that prevents the flashover discharge according to claim 3 is characterized in that, the tubular shielding new cover that said high-tension shielding cover adopts copper mesh to process; The two ends up and down of said high-tension shielding cover are provided with flange.
5. the insulator that prevents the flashover discharge according to claim 4 is characterized in that said high-tension shielding cover is provided with diamond hole, and the length of side of said diamond hole is 2-3mm.
6. the insulator that prevents the flashover discharge according to claim 1; It is characterized in that; Said low pressure radome comprises an annular stent; Be wound in the screen that the semi-conducting material on the said annular stent is processed, be provided with lead in the said screen, the lead that said lead adopts the coiling of tin-coated copper conductor to form.
7. the insulator that prevents the flashover discharge according to claim 6 is characterized in that said low pressure radome is provided with four grounded at least terminal, and at least one said earth terminal is connected with lead.
8. the insulator that prevents the flashover discharge according to claim 7 is characterized in that the inboard of said low pressure radome is provided with the insulating barrier that electrician's paper roll is processed; The outside of said low pressure radome is provided with the enhancement layer that fiberglass gridding cloth is processed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220074020XU CN202473432U (en) | 2012-03-01 | 2012-03-01 | Insulator preventing flashover discharge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220074020XU CN202473432U (en) | 2012-03-01 | 2012-03-01 | Insulator preventing flashover discharge |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202473432U true CN202473432U (en) | 2012-10-03 |
Family
ID=46921576
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201220074020XU Expired - Fee Related CN202473432U (en) | 2012-03-01 | 2012-03-01 | Insulator preventing flashover discharge |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202473432U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105743053A (en) * | 2014-12-08 | 2016-07-06 | 北京瑞恒新源投资有限公司 | Capacitive cable terminal without insulating medium filling |
| CN111834056A (en) * | 2020-07-30 | 2020-10-27 | 江西利华电瓷制造有限公司 | High-strength column type electric porcelain insulator for high-voltage line |
-
2012
- 2012-03-01 CN CN201220074020XU patent/CN202473432U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105743053A (en) * | 2014-12-08 | 2016-07-06 | 北京瑞恒新源投资有限公司 | Capacitive cable terminal without insulating medium filling |
| CN105743053B (en) * | 2014-12-08 | 2019-02-05 | 北京瑞恒新源投资有限公司 | A kind of capacitance type cable terminal being not filled with dielectric |
| CN111834056A (en) * | 2020-07-30 | 2020-10-27 | 江西利华电瓷制造有限公司 | High-strength column type electric porcelain insulator for high-voltage line |
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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: 20121003 Termination date: 20150301 |
|
| EXPY | Termination of patent right or utility model |