CN107170539A - A kind of 800kV sleeve pipes with apical ring shielding construction - Google Patents
A kind of 800kV sleeve pipes with apical ring shielding construction Download PDFInfo
- Publication number
- CN107170539A CN107170539A CN201710173701.9A CN201710173701A CN107170539A CN 107170539 A CN107170539 A CN 107170539A CN 201710173701 A CN201710173701 A CN 201710173701A CN 107170539 A CN107170539 A CN 107170539A
- Authority
- CN
- China
- Prior art keywords
- apical ring
- band
- sleeve pipes
- shielding construction
- contact tube
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B17/00—Insulators or insulating bodies characterised by their form
- H01B17/56—Insulating bodies
- H01B17/58—Tubes, sleeves, beads, or bobbins through which the conductor passes
- H01B17/583—Grommets; Bushings
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B17/00—Insulators or insulating bodies characterised by their form
- H01B17/42—Means for obtaining improved distribution of voltage; Protection against arc discharges
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Details Of Aerials (AREA)
Abstract
The invention discloses a kind of band apical ring shielding construction 800kV sleeve pipes, it is characterised in that including the contact tube in Hollow Compound insulating cylinder, contact tube top is connected with terminal plate；Band apical ring ground shield is provided with Hollow Compound insulating cylinder, it includes radome main body, radome body top connects apical ring overlapping above and below multiple by many support bars, and contact tube is arranged in apical ring.The present invention increases apical ring in radome body top, significantly improve the problem of the corresponding sleeve pipe Hollow Compound insulating cylinder inwall in band apical ring ground shield upper end and excessively intensive outer wall equipotential line, optimize and reduce electric field intensity value at this, equipotential line is overall to the passage of sleeve pipe top, while reaching the purpose for making full use of sleeve pipe insulation distance and improving sleeve pipe integral insulation performance, in the case where ensureing that insulating properties remain basically stable, the simple in construction of sleeve pipe, manufacture and easy for installation, quick, production cost is set to be significantly reduced.
Description
Technical field
The present invention relates to a kind of 800kV sleeve pipes with apical ring shielding construction being used in AC high-voltage switchgear, belong to
Electrical equipment technical field.
Background technology
Patent No. CN 202550379《Single radome of 550kV sleeve pipes》In introduce a kind of 550kV and cover effective single screen and cover cover,
Radome including tubular, it is characterized in that radome is made up of upper outlet body and lower cover two parts, upper lower cover diameter it is identical and
Coaxially.Single shielding case structure can meet technical requirements using the insulating properties on 550kV voltage class sleeve pipes, if but should
Single shielding case structure is used on 800kV voltage class sleeve pipes, will there is the corresponding sleeve pipe Hollow Compound in single radome upper end
Insulating cylinder inwall and the problem of outer wall equipotential line is excessively concentrated, electric field intensity value is too high, this will cause its insulating properties not expire
Sufficient technical requirements.
At present, the 800kV sleeve pipes of in the market can not be used in order that Electric Field Distribution is more reasonable, also and mentioned in above-mentioned patent
Single screen shield structure, but use intermediate potential and earthing potential dual shield structure, i.e., using two coaxial cannon tube shields,
Wherein, intermediate potential radome also needs to just be fixed on casing flange by insulation supporting cylinder.This double shield cover knot
The sleeve pipe of structure has that parts are excessive, complicated, technological requirement is high, assembly difficulty is big, cost is high and economy is bad etc. and lacked
Point.
The content of the invention
It is to be solved by this invention be existing 800kV sleeve pipes radome parts are excessive, complicated, technological requirement
It is high, the problem of assembly difficulty is big, cost is high and less economical.
In order to solve the above problems, the technical scheme is that there is provided a kind of band apical ring shielding construction 800kV sleeve pipes,
It is characterised in that it includes the contact tube in Hollow Compound insulating cylinder, contact tube top is connected with terminal plate；Hollow Compound is exhausted
Band apical ring ground shield is provided with edge cylinder, it includes radome main body, and radome body top is connected by many support bars
Overlapping apical ring above and below multiple, contact tube is arranged in apical ring.
Preferably, it is provided with grading ring at the top of the Hollow Compound insulating cylinder.
Preferably, the Hollow Compound insulating cylinder bottom connection transitional shell.
Preferably, the radome main body is tubular.
Preferably, the apical ring uses aluminium ring；The support bar uses aluminium bar；The contact tube uses aluminum pipe.
Preferably, the external diameter of the apical ring is 40-60mm；The distance between two neighboring apical ring is 200-600mm.
Preferably, the quantity of the support bar is 3-7 roots.
Preferably, two ends of the contact tube and the portion faces of other component contacts are silver-plated.
The present invention increases apical ring in radome body top, significantly improves set corresponding in band apical ring ground shield upper end
The problem of pipe Hollow Compound insulating cylinder inwall and excessively intensive outer wall equipotential line, optimize and reduce electric field intensity value at this, by electricity
Bit line is overall to be elapsed to sleeve pipe top, reaches the purpose for making full use of sleeve pipe insulation distance and improving sleeve pipe integral insulation performance.
Meanwhile, relative to traditional double shield structure, in the case that the structure can remain basically stable ensureing insulating properties, make the knot of sleeve pipe
Structure is simple, manufacture and easy for installation, quick, production cost are significantly reduced.
Brief description of the drawings
The sectional view with apical ring shielding construction 800kV sleeve pipes that Fig. 1 provides for the present invention；
Fig. 2 is the sectional view with apical ring ground shield.
Embodiment
To become apparent the present invention, hereby with preferred embodiment, and accompanying drawing is coordinated to be described in detail below.
Embodiment
As shown in figure 1, a kind of band apical ring shielding construction 800kV sleeve pipes provided for the present embodiment, it is included located at hollow
Contact tube 30 in compound inslation cylinder 50, two ends of contact tube 30 and the portion faces of other component contacts are silver-plated, the knot
Structure can greatly reduce electric current kelvin effect and reduction contact resistance, significantly improve the overall through-current capability of sleeve pipe.Contact tube 30 is pushed up
End is bolted on the metal end on the top of Hollow Compound insulating cylinder 50, and the top of Hollow Compound insulating cylinder 50, which is provided with, presses
Ring 10, grading ring 10 and terminal plate 20 are also by being bolted on the metal end on the top of Hollow Compound insulating cylinder 50；It is hollow
50 bottoms of compound inslation cylinder are bolted connection transitional shell 60.Grading ring 10 is that the aluminum of a Large Diameter Pipeline is monocyclic, its
Cannula tip Electric Field Distribution can be made uniform, reasonable.Coaxially arranged band apical ring earth shield is provided with Hollow Compound insulating cylinder 50
Cover 40, it includes the radome main body 41 (as shown in Figure 2) of tubular, and the top of radome main body 41 is welded by many support bars 43
About three overlapping apical rings 42, contact tube 3 is arranged in apical ring 42.Band apical ring ground shield 40 is bolted in mistake
On the flange for crossing housing 60.
The apical ring 42 uses solid aluminium ring, and its external diameter r is electric field intensity value mistake on 50mm, the too small then apical ring 42 of external diameter
Height, the preponderance of the excessive then apical ring 42 of external diameter；The distance between two neighboring apical ring 42 L is 400mm, is not had apart from too small
The effect of electric field is homogenized, electric field intensity value is too high on excessive then apical ring 42.The support bar 43 uses solid aluminium bar, overall
Uniform on circumference, the quantity of support bar 43 is 4, and radical is very few can not to meet gentle support, and radical, which is crossed, does not have homogenizing at most
The effect of electric field.The contact tube 30 uses aluminum pipe.
Claims (8)
1. a kind of band apical ring shielding construction 800kV sleeve pipes, it is characterised in that including leading in Hollow Compound insulating cylinder (50)
Fulgurite (30), contact tube (30) top is connected with terminal plate (20)；Band apical ring earthing is provided with Hollow Compound insulating cylinder (50)
Cover (40) is covered, it includes radome main body (41), radome main body (41) top is connected on multiple by many support bars (43)
Under overlapping apical ring (42), contact tube (3) is arranged in apical ring (42).
2. band apical ring shielding construction 800kV sleeve pipes as claimed in claim 1, it is characterised in that the Hollow Compound insulating cylinder
(50) top is provided with grading ring (10).
3. band apical ring shielding construction 800kV sleeve pipes as claimed in claim 1, it is characterised in that the Hollow Compound insulating cylinder
(50) bottom connection transitional shell (60).
4. band apical ring shielding construction 800kV sleeve pipes as claimed in claim 1, it is characterised in that the radome main body (41)
For tubular.
5. band apical ring shielding construction 800kV sleeve pipes as claimed in claim 1, it is characterised in that the apical ring (42) uses aluminium
Ring；The support bar (43) uses aluminium bar；The contact tube (30) uses aluminum pipe.
6. the band apical ring shielding construction 800kV sleeve pipes as described in claim 1 or 5, it is characterised in that outside the apical ring (42)
Footpath (r) is 40-60mm；The distance between two neighboring apical ring (42) (L) is 200-600mm.
7. band apical ring shielding construction 800kV sleeve pipes as claimed in claim 1, it is characterised in that the number of the support bar (43)
Measure as 3-7 roots.
8. the band apical ring shielding construction 800kV sleeve pipes as described in claim 1 or 5, it is characterised in that the contact tube (30)
Two ends and the portion faces of other component contacts are silver-plated.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710173701.9A CN107170539A (en) | 2017-03-22 | 2017-03-22 | A kind of 800kV sleeve pipes with apical ring shielding construction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710173701.9A CN107170539A (en) | 2017-03-22 | 2017-03-22 | A kind of 800kV sleeve pipes with apical ring shielding construction |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107170539A true CN107170539A (en) | 2017-09-15 |
Family
ID=59849872
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710173701.9A Pending CN107170539A (en) | 2017-03-22 | 2017-03-22 | A kind of 800kV sleeve pipes with apical ring shielding construction |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107170539A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113674975A (en) * | 2021-08-23 | 2021-11-19 | 国网四川省电力公司电力科学研究院 | Environment-friendly mixed gas mutual inductor |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6218627B1 (en) * | 1998-02-04 | 2001-04-17 | Hitachi, Ltd. | Bushing |
| CN102969096A (en) * | 2012-12-06 | 2013-03-13 | 山东彼岸电力科技有限公司 | High-voltage outgoing line composite bushing |
| CN203013426U (en) * | 2011-12-06 | 2013-06-19 | 江苏神马电力股份有限公司 | 550kV low-pressure SF6 gas insulation composite bushing |
| CN103824663A (en) * | 2014-03-04 | 2014-05-28 | 上海思源高压开关有限公司 | High-tension bushing and shield body thereof |
-
2017
- 2017-03-22 CN CN201710173701.9A patent/CN107170539A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6218627B1 (en) * | 1998-02-04 | 2001-04-17 | Hitachi, Ltd. | Bushing |
| CN203013426U (en) * | 2011-12-06 | 2013-06-19 | 江苏神马电力股份有限公司 | 550kV low-pressure SF6 gas insulation composite bushing |
| CN102969096A (en) * | 2012-12-06 | 2013-03-13 | 山东彼岸电力科技有限公司 | High-voltage outgoing line composite bushing |
| CN103824663A (en) * | 2014-03-04 | 2014-05-28 | 上海思源高压开关有限公司 | High-tension bushing and shield body thereof |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113674975A (en) * | 2021-08-23 | 2021-11-19 | 国网四川省电力公司电力科学研究院 | Environment-friendly mixed gas mutual inductor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170915 |