CN103296620A - Wall feed-through sleeve with high-low voltage shielding - Google Patents
Wall feed-through sleeve with high-low voltage shielding Download PDFInfo
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- CN103296620A CN103296620A CN2012100521495A CN201210052149A CN103296620A CN 103296620 A CN103296620 A CN 103296620A CN 2012100521495 A CN2012100521495 A CN 2012100521495A CN 201210052149 A CN201210052149 A CN 201210052149A CN 103296620 A CN103296620 A CN 103296620A
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- wall bushing
- low pressure
- shielding
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Abstract
The invention relates to the field of electrical equipment, in particular to a wall feed-through sleeve. The wall feed-through sleeve with high-low voltage shielding comprises a wall feed-through sleeve body made of insulating materials. A flange used for installing and fixing the wall feed-through sleeve body is arranged on the wall feed-through sleeve body. A shielding layer wraps the interior of the position of the flange on the wall feed-through sleeve body. The shielding layer comprises a high-voltage shielding cover and a grounded low-voltage shielding cover, wherein the high-voltage shielding cover is used for achieving high-voltage shielding. The high-voltage shielding cover is located on the inner wall of the wall feed-through sleeve body. Insulating materials are arranged between the high-voltage shielding cover and the low-voltage shielding cover. Due to the fact that the shielding layer wraps the interior of the position of the flange of the wall feed-through sleeve body, electric field distribution is improved, electric stress on the insulating materials by an electric field is reduced, corona discharge is reduced or eliminated, the service life of the wall feed-through sleeve is prolonged, and reliable operation of a network system is ensured.
Description
Technical field
The present invention relates to field of electrical equipment, relate in particular to a kind of wall bushing.
Background technology
High-voltage wall bushing is the common configuration of electric power system, the indoor outer high-voltage wall bushing of using on three-phase alternating current system power station and the electric substation's power distribution equipment is under action of high voltage, edge at flange is easy to produce corona discharge, can produce heavy damage to insulating barrier, influence the reliability service of network system.
Summary of the invention
The object of the present invention is to provide a kind of wall bushing with the high-low pressure shielding, solve above technical problem.
Technical problem solved by the invention can realize by the following technical solutions:
The wall bushing of band high-low pressure shielding, comprise the wall bushing main body that an insulating material is made, described wall bushing main body is provided with the flange that installs and fixes described wall bushing main body, it is characterized in that, the inside, position of described the above flange of wall bushing main body is coated with screen;
Described screen comprises that one realizes the high-tension shielding cover of high-tension shielding and the low pressure radome of ground connection, and described high-tension shielding cover is positioned at the inwall of described wall bushing main body, is provided with insulating material between described high-tension shielding cover and the described low pressure radome.
The wall bushing main body that described wall bushing main body adopts epoxy resin to make.Epoxy resin is a kind of organic insulating material with good electrical insulation property and good Thermocurable.
The wall bushing main body that described wall bushing main body adopts epoxy resin poured body to make.
The wall bushing main body that described wall bushing main body adopts epoxide resin automatic pressure gel (APG) moulding to make, epoxide resin automatic pressure gel (APG) moulding process is compared with traditional poured with epoxy resin moulding, has the good advantage of the high part performance of production efficiency.
The present invention improves Electric Field Distribution by the inner screen that coats in the position of wall bushing main flange, reduces electric field to the electric stress of insulating material, reduces or eliminates corona discharge, prolongs the useful life of wall bushing main body, guarantees the reliability service of network system.
Described high-tension shielding cover is provided with at least two binding posts that adopt soldering to draw, and described binding post is electrically connected with the bus that passes described wall bushing main body.
The tubular shielding new cover that described high-tension shielding cover adopts copper mesh to make.Described shielding new cover adopts the stretching copper mesh, also the shielding new cover that can make for aluminium net, aluminium alloy net, stainless (steel) wire.
The two ends up and down of described shielding new cover are provided with flange, in order to eliminate burr.
Described shielding new cover is provided with diamond hole, and the length of side of described diamond hole is 2-3mm.Described shielding new cover is provided with other passes, as hexangle type, circular hole, triangular form, fish scale hole.
Described low pressure radome comprises an annular stent, is wound in the screen that the semi-conducting material on the described annular stent is made, and is provided with lead in the described screen, the lead that described lead adopts the coiling of tin-coated copper conductor to form.
Described low pressure radome is provided with four grounded at least terminal, and at least one described earth terminal is connected with lead.Described 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 made, 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, therefore 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 described low pressure radome is provided with the insulating barrier that electrician's paper roll is made.The outside of described low pressure radome is provided with the enhancement layer that fiberglass gridding cloth is made, to strengthen the epoxy resin interface strength of injection moulding.
The rated voltage of described wall bushing main body is a kind of among 10KV, 20KV, the 35KV.
Beneficial effect: owing to adopt technique scheme, the present invention is by the inner screen that coats in the position of wall bushing main flange, improve Electric Field Distribution, reduce electric field to the electric stress of insulating material, reduce or eliminate corona discharge, prolong the useful life of wall bushing, guarantee the reliability service of network system.
Description of drawings
Fig. 1 is structural representation of the present invention;
Fig. 2 is the end view of Fig. 1;
Fig. 3 is the structural representation of high-tension shielding cover of the present invention;
Fig. 4 is the structural representation of low pressure radome of the present invention.
Embodiment
For technological means, creation characteristic that the present invention is realized, reach purpose and effect is easy to understand, further set forth the present invention below in conjunction with concrete diagram.
With reference to Fig. 1, Fig. 2, the wall bushing of band high-low pressure shielding, comprise the wall bushing main body 1 that an insulating material is made, wall bushing main body 1 is provided with the flange 4 that installs and fixes wall bushing main body 1, and the inside, position of wall bushing main body 1 upper flange 4 is coated with screen.Screen comprises that one realizes the high-tension shielding cover 2 of high-tension shielding and the low pressure radome 3 of ground connection, and high-tension shielding cover 2 is positioned at the inwall of wall bushing main body 1, is provided with insulating material between high-tension shielding cover 2 and the low pressure radome 3.The wall bushing main body 1 that wall bushing main body 1 adopts epoxy resin poured body to make.
The present invention improves Electric Field Distribution by the inner screen that coats in the position of wall bushing main body 1 flange 4, reduces electric field to the electric stress of insulating material, reduces or eliminates corona discharge, prolongs the useful life of wall bushing, guarantees the reliability service of network system.
With reference to Fig. 3, 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 wall bushing main body 1.The tubular shielding new cover that high-tension shielding cover 2 adopts copper mesh to make.Shielding new cover adopts the stretching copper mesh, also the shielding new cover that can make for aluminium net, aluminium alloy net, stainless (steel) wire.The two ends up and down of shielding new cover are provided with flange, in order to eliminate burr.
Shielding new cover is provided with diamond hole, the length of side 2-3mm of diamond hole.Shielding new cover is provided with other passes, as hexangle type, circular hole, triangular form, fish scale hole.
With reference to Fig. 4, low pressure radome 3 comprises an annular stent, is wound in the screen that the semi-conducting material on the annular stent is made, and is provided with lead in the screen, the lead that lead adopts the coiling of tin-coated copper conductor to form.
Because low pressure radome 3 is provided with the screen that semi-conducting material is made, 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, therefore 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 made.The outside of low pressure radome 3 is provided with the enhancement layer 32 that fiberglass gridding cloth is made, to strengthen the epoxy resin interface strength of injection moulding.
The rated voltage of wall bushing main body 1 is a kind of among 10KV, 20KV, the 35KV.
More than show and described basic principle of the present invention and principal character and advantage of the present invention.The technical staff of the industry should understand; the present invention is not restricted to the described embodiments; that describes in above-described embodiment and the specification just illustrates principle of the present invention; without departing from the spirit and scope of the present invention; the present invention also has various changes and modifications, and these changes and improvements all fall in the claimed scope of the invention.The claimed scope of the present invention is defined by appending claims and equivalent thereof.
Claims (7)
1. be with the wall bushing of high-low pressure shielding, comprise the wall bushing main body that an insulating material is made, described wall bushing main body is provided with the flange that installs and fixes described wall bushing main body, it is characterized in that, the inside, position of described the above flange of wall bushing main body is coated with screen;
Described screen comprises that one realizes the high-tension shielding cover of high-tension shielding and the low pressure radome of ground connection, and described high-tension shielding cover is positioned at the inwall of described wall bushing main body, is provided with insulating material between described high-tension shielding cover and the described low pressure radome;
Described high-tension shielding cover is provided with at least two binding posts that adopt soldering to draw, and described binding post is electrically connected with the bus that passes described wall bushing main body;
Described low pressure radome comprises an annular stent, is wound in the screen that the semi-conducting material on the described annular stent is made, and is provided with lead in the described screen, the lead that described lead adopts the coiling of tin-coated copper conductor to form.
2. the wall bushing of band high-low pressure shielding according to claim 1 is characterized in that, the wall bushing main body that described wall bushing main body adopts epoxy resin poured body to make.
3. the wall bushing of band high-low pressure shielding according to claim 1 is characterized in that, the tubular shielding new cover that described high-tension shielding cover adopts the stretching copper mesh to make.
4. the wall bushing of band high-low pressure shielding according to claim 3 is characterized in that the two ends up and down of described shielding new cover are provided with flange.
5. the wall bushing of band high-low pressure shielding according to claim 4 is characterized in that described shielding new cover is provided with diamond hole, and the length of side of described diamond hole is 2-3mm.
6. the wall bushing of band high-low pressure shielding according to claim 1 is characterized in that described low pressure radome is provided with four grounded at least terminal, and at least one described earth terminal is connected with lead.
7. the wall bushing of band high-low pressure shielding according to claim 6 is characterized in that the inboard of described low pressure radome is provided with the insulating barrier that electrician's paper roll is made; The outside of described low pressure radome is provided with the enhancement layer that fiberglass gridding cloth is made.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100521495A CN103296620A (en) | 2012-03-01 | 2012-03-01 | Wall feed-through sleeve with high-low voltage shielding |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100521495A CN103296620A (en) | 2012-03-01 | 2012-03-01 | Wall feed-through sleeve with high-low voltage shielding |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103296620A true CN103296620A (en) | 2013-09-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012100521495A Pending CN103296620A (en) | 2012-03-01 | 2012-03-01 | Wall feed-through sleeve with high-low voltage shielding |
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| CN (1) | CN103296620A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105514892A (en) * | 2016-01-27 | 2016-04-20 | 云南电网有限责任公司电力科学研究院 | Wall bushing provided with shielding structure |
| CN109342901A (en) * | 2018-11-27 | 2019-02-15 | 福州天宇电气股份有限公司 | Wall bushing and its working method with state of insulation on-line monitoring function |
| CN110010315A (en) * | 2019-05-10 | 2019-07-12 | 厦门耐德电气有限公司 | A kind of casing |
| CN111327069A (en) * | 2020-04-21 | 2020-06-23 | 中国电建集团福建省电力勘测设计院有限公司 | Alternating current energy consumption device in gentle straight engineering |
| CN112002463A (en) * | 2020-07-17 | 2020-11-27 | 清华大学 | High-voltage AC/DC wall bushing and preparation method thereof |
| CN112018686A (en) * | 2020-07-17 | 2020-12-01 | 清华大学 | Low-voltage AC/DC wall bushing and preparation method thereof |
| CN112858848A (en) * | 2021-01-06 | 2021-05-28 | 浙江大有实业有限公司电缆工程分公司 | Repairable type test overline device capable of penetrating through narrow door or narrow window |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE29707899U1 (en) * | 1997-05-05 | 1998-09-17 | HSP Hochspannungsgeräte Porz GmbH, 51145 Köln | Wall bushing |
| CN201178008Y (en) * | 2008-03-28 | 2009-01-07 | 宁波天互电器有限公司 | Anti-flashover through-wall sleeve |
| US20090047815A1 (en) * | 2006-01-26 | 2009-02-19 | Schlumberger Technology Corporation | Contact pin assembly for a high voltage electrical connection |
| CN201466610U (en) * | 2009-08-14 | 2010-05-12 | 中国西电电气股份有限公司 | Wall bushing with double-shield structure |
-
2012
- 2012-03-01 CN CN2012100521495A patent/CN103296620A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE29707899U1 (en) * | 1997-05-05 | 1998-09-17 | HSP Hochspannungsgeräte Porz GmbH, 51145 Köln | Wall bushing |
| US20090047815A1 (en) * | 2006-01-26 | 2009-02-19 | Schlumberger Technology Corporation | Contact pin assembly for a high voltage electrical connection |
| CN201178008Y (en) * | 2008-03-28 | 2009-01-07 | 宁波天互电器有限公司 | Anti-flashover through-wall sleeve |
| CN201466610U (en) * | 2009-08-14 | 2010-05-12 | 中国西电电气股份有限公司 | Wall bushing with double-shield structure |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105514892A (en) * | 2016-01-27 | 2016-04-20 | 云南电网有限责任公司电力科学研究院 | Wall bushing provided with shielding structure |
| CN109342901A (en) * | 2018-11-27 | 2019-02-15 | 福州天宇电气股份有限公司 | Wall bushing and its working method with state of insulation on-line monitoring function |
| CN109342901B (en) * | 2018-11-27 | 2024-02-09 | 福州天宇电气股份有限公司 | Wall bushing with insulation state on-line monitoring function and working method thereof |
| CN110010315A (en) * | 2019-05-10 | 2019-07-12 | 厦门耐德电气有限公司 | A kind of casing |
| CN110010315B (en) * | 2019-05-10 | 2024-02-02 | 厦门耐德电气有限公司 | Sleeve pipe |
| CN111327069A (en) * | 2020-04-21 | 2020-06-23 | 中国电建集团福建省电力勘测设计院有限公司 | Alternating current energy consumption device in gentle straight engineering |
| CN111327069B (en) * | 2020-04-21 | 2024-04-02 | 中国电建集团福建省电力勘测设计院有限公司 | Alternating current energy consumption device in flexible-direct engineering |
| CN112002463A (en) * | 2020-07-17 | 2020-11-27 | 清华大学 | High-voltage AC/DC wall bushing and preparation method thereof |
| CN112018686A (en) * | 2020-07-17 | 2020-12-01 | 清华大学 | Low-voltage AC/DC wall bushing and preparation method thereof |
| CN112002463B (en) * | 2020-07-17 | 2021-11-19 | 清华大学 | High-voltage AC/DC wall bushing of more than 35kV and preparation method thereof |
| CN112018686B (en) * | 2020-07-17 | 2022-04-01 | 清华大学 | High-voltage AC/DC wall bushing of 35kV or below and preparation method thereof |
| CN112858848A (en) * | 2021-01-06 | 2021-05-28 | 浙江大有实业有限公司电缆工程分公司 | Repairable type test overline device capable of penetrating through narrow door or narrow window |
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Application publication date: 20130911 |