CN104979056A - High-voltage balancing sleeve structure used in 40.5kV sleeve and contact box - Google Patents
High-voltage balancing sleeve structure used in 40.5kV sleeve and contact box Download PDFInfo
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- CN104979056A CN104979056A CN201510401059.6A CN201510401059A CN104979056A CN 104979056 A CN104979056 A CN 104979056A CN 201510401059 A CN201510401059 A CN 201510401059A CN 104979056 A CN104979056 A CN 104979056A
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- voltage
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- contact box
- balancing
- high pressure
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Abstract
The invention discloses a high-voltage balancing sleeve structure used in a 40.5kV sleeve and a contact box. The high-voltage average-voltage sleeve structure comprises a voltage-balancing body sleeve and an end portion voltage-balancing ring, wherein the voltage-balancing body sleeve is moulded with a die, and the end portion voltage-balancing ring is made of a stainless steel thin plate. The high-voltage balancing sleeve structure is casted in a wall-passing sleeve or a contact box. Since the integral structure of the high-voltage balancing sleeve is of a cylindrical and sealed structure, a live-line high-voltage primary conduct may exist. Two inward bending structures are arranged on the end portion and a R-shaped smooth arc ring is arranged in the center. The electric field distribution surrounding the primary conduct is effectively optimized. The defects that may affect the insulating properties such as nonuniform electric field distribution, easily occurrence of corona and breakdown of insulation media and are caused by factors including the shape, protruding corners and burrs of the primary conduct can be overcome.
Description
Technical field
The invention belongs to high voltage protective cover technical field, be specifically related to a kind of for the equal gland structure of the high pressure in 40.5kV sleeve pipe and contact box.
Background technology
Along with China's electric power and the manufacturing develop rapidly of switchgear, design, the manufacture level of 40.5kV switch cubicle are largely increased, and the profile of switch cubicle reduces greatly, and switch cubicle develops into the frame mode based on compound inslation by air insulation mode completely.Meanwhile, due to reducing of switch cubicle profile, the stable problem of dielectric strength and insulation property is following, in the 40.5kV switch cubicle product that each manufacturer manufactures, the dielectric strength of contact box and wall bushing and the stability problem of insulation property particularly outstanding.For an above-mentioned difficult problem, market generally adopts the equal gland of high pressure for improving and strengthen the dielectric strength of contact box, wall bushing, but due to the project organization limitation of equal gland, the dielectric strength of contact box and wall bushing and the stability of insulation property fail thoroughly to solve.Just in order to solve the deficiency of current 40.5kV contact box and the equal gland of wall bushing mesohigh, have developed the equal gland of the high pressure with special construction specially.
Summary of the invention
The invention provides a kind of for the equal gland structure of the high pressure in 40.5kV sleeve pipe and contact box, with the technical problem of the less stable of the dielectric strength and insulation property that solve existing contact box and wall bushing.
In order to solve above technical problem, the technical scheme that the present invention takes is:
A kind of for the equal gland structure of the high pressure in 40.5kV sleeve pipe and contact box, described for the equal gland structure of the high pressure in 40.5kV sleeve pipe and contact box by all press main body overlap and end grading ring form, described all pressures main body puts and is provided with multiple R shape circular arc ring, and described main body cover of all pressing is compressing by mould; The material of described end grading ring is stainless sheet steel.
Be preferably, described end grading ring is compressing by mould.
Be preferably, described material of all pressing main body cover is stainless sheet steel.
Be preferably, described end grading ring is provided with two double-bending structures.
After employing technique scheme, in the wall bushing of moulding by casting or contact box, when exist high pressure Primary Conductor charged be due to the equal gland of high pressure in design overall be cylinder enclosed structure, and the structure of two double-bendings is to the inside used in end, and have the smooth circular arc ring of R shape at medium design, so the Electric Field Distribution around Primary Conductor effectively can be optimized, remove the non-uniform electric because Primary Conductor shape and the factor such as salient angle, burr cause, easily corona and dielectric occur and the shortcoming affecting insulation property such as to puncture.Thus the stable dielectric strength that improve 40.5kV wall bushing or contact box, ensure the operational reliability of 40.5kV switch cubicle.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the cutaway view of the present invention for the equal gland structure of the high pressure in 40.5kV sleeve pipe and contact box;
Fig. 2 is the topology view of the present invention for the equal gland structure of the high pressure in 40.5kV sleeve pipe and contact box.
Embodiment
For making the object of the embodiment of the present invention, technical scheme and advantage clearly, below in conjunction with the accompanying drawing in the embodiment of the present invention, technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making other embodiments all obtained under creative work prerequisite, belong to the scope of protection of the invention.
As shown in Figure 1 to Figure 2, all pressure main body cover 1 and end grading ring 2 is comprised for the equal gland structure of the high pressure in 40.5kV sleeve pipe and contact box.Wherein all pressing main body to overlap 1 material is stainless sheet steel, all presses on main body cover 1 and is provided with multiple R shape circular arc ring, all presses main body cover 1 compressing by mould; The material of end grading ring 2 is stainless sheet steel, and end grading ring 2 is provided with two double-bending structures, and end grading ring 2 is compressing by mould.
In the process of assembling, all press main body cover 1 and two end grading rings 2 to assemble by one, place on request and be fixed in the casting mold of contact box or sleeve pipe processing, after the molding for epoxy resin of cast, the equal gland of high pressure is just fixed on contact box or inside pipe casing.
In the wall bushing of moulding by casting or contact box, when exist high pressure Primary Conductor charged be due to the equal gland of high pressure in design overall be cylinder enclosed structure, and the structure of two double-bendings is to the inside used in end, and have the smooth circular arc ring of R shape at medium design, so the Electric Field Distribution around Primary Conductor effectively can be optimized, remove the non-uniform electric because Primary Conductor shape and the factor such as salient angle, burr cause, easily corona and dielectric occur and the shortcoming affecting insulation property such as to puncture.Thus the stable dielectric strength that improve 40.5kV wall bushing or contact box, ensure the operational reliability of 40.5kV switch cubicle.
Last it is noted that above embodiment only illustrates technical scheme of the present invention, be not intended to limit; Although with reference to previous embodiment to invention has been detailed description, those of ordinary skill in the art is to be understood that: it still can be modified to the technical scheme described in foregoing embodiments, or carries out equivalent replacement to wherein portion of techniques feature; And these amendments or replacement, do not make the essence of appropriate technical solution depart from the spirit and scope of various embodiments of the present invention technical scheme.
Claims (4)
1. one kind for the equal gland structure of the high pressure in 40.5kV sleeve pipe and contact box, it is characterized in that, described for the equal gland structure of the high pressure in 40.5kV sleeve pipe and contact box by all press main body overlap and end grading ring form, described all pressures main body puts and is provided with multiple R shape circular arc ring, and described main body cover of all pressing is compressing by mould; The material of described end grading ring is stainless sheet steel.
2. according to claim 1ly it is characterized in that for the equal gland structure of the high pressure in 40.5kV sleeve pipe and contact box, described end grading ring is compressing by mould.
3. according to claim 2ly it is characterized in that for the equal gland structure of the high pressure in 40.5kV sleeve pipe and contact box, described material of all pressing main body cover is stainless sheet steel.
4. according to claim 3ly it is characterized in that for the equal gland structure of the high pressure in 40.5kV sleeve pipe and contact box, described end grading ring is provided with two double-bending structures.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510401059.6A CN104979056A (en) | 2015-07-09 | 2015-07-09 | High-voltage balancing sleeve structure used in 40.5kV sleeve and contact box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510401059.6A CN104979056A (en) | 2015-07-09 | 2015-07-09 | High-voltage balancing sleeve structure used in 40.5kV sleeve and contact box |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104979056A true CN104979056A (en) | 2015-10-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510401059.6A Pending CN104979056A (en) | 2015-07-09 | 2015-07-09 | High-voltage balancing sleeve structure used in 40.5kV sleeve and contact box |
Country Status (1)
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| CN (1) | CN104979056A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2008027008A1 (en) * | 2006-08-31 | 2008-03-06 | Abb Research Ltd | High voltage bushing |
| CN201340770Y (en) * | 2008-11-28 | 2009-11-04 | 天水长城开关厂有限公司 | Wall bushing |
| CN201397713Y (en) * | 2009-01-20 | 2010-02-03 | 江苏大全封闭母线有限公司 | Shielding insulation sleeve for tube busbar |
| US20100294562A1 (en) * | 2009-05-25 | 2010-11-25 | Abb Technology Ag | Electrical conductor for a high-current bushing |
| CN202473442U (en) * | 2012-02-29 | 2012-10-03 | 山东泰开高压开关有限公司 | Voltage equalizing shielding cylinder of porcelain bushing conductor |
| CN203014180U (en) * | 2012-12-28 | 2013-06-19 | 上海雷博司电气股份有限公司 | Busbar bushing used for switch cabinet |
-
2015
- 2015-07-09 CN CN201510401059.6A patent/CN104979056A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2008027008A1 (en) * | 2006-08-31 | 2008-03-06 | Abb Research Ltd | High voltage bushing |
| CN201340770Y (en) * | 2008-11-28 | 2009-11-04 | 天水长城开关厂有限公司 | Wall bushing |
| CN201397713Y (en) * | 2009-01-20 | 2010-02-03 | 江苏大全封闭母线有限公司 | Shielding insulation sleeve for tube busbar |
| US20100294562A1 (en) * | 2009-05-25 | 2010-11-25 | Abb Technology Ag | Electrical conductor for a high-current bushing |
| CN202473442U (en) * | 2012-02-29 | 2012-10-03 | 山东泰开高压开关有限公司 | Voltage equalizing shielding cylinder of porcelain bushing conductor |
| CN203014180U (en) * | 2012-12-28 | 2013-06-19 | 上海雷博司电气股份有限公司 | Busbar bushing used for switch cabinet |
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20151014 |
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| RJ01 | Rejection of invention patent application after publication |