CN202796282U - Elliptoid bus insulated sleeve - Google Patents
Elliptoid bus insulated sleeve Download PDFInfo
- Publication number
- CN202796282U CN202796282U CN 201220375067 CN201220375067U CN202796282U CN 202796282 U CN202796282 U CN 202796282U CN 201220375067 CN201220375067 CN 201220375067 CN 201220375067 U CN201220375067 U CN 201220375067U CN 202796282 U CN202796282 U CN 202796282U
- Authority
- CN
- China
- Prior art keywords
- epoxy resin
- low pressure
- bus
- gauze screen
- shielding mesh
- 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.)
- Expired - Fee Related
Links
- 239000003822 epoxy resin Substances 0.000 claims abstract description 43
- 229920000647 polyepoxide Polymers 0.000 claims abstract description 43
- 239000002184 metal Substances 0.000 claims abstract description 27
- LNEPOXFFQSENCJ-UHFFFAOYSA-N haloperidol Chemical compound C1CC(O)(C=2C=CC(Cl)=CC=2)CCN1CCCC(=O)C1=CC=C(F)C=C1 LNEPOXFFQSENCJ-UHFFFAOYSA-N 0.000 claims description 13
- 229910001369 Brass Inorganic materials 0.000 claims description 5
- 229910000831 Steel Inorganic materials 0.000 claims description 5
- 239000010951 brass Substances 0.000 claims description 5
- 239000010959 steel Substances 0.000 claims description 5
- 230000005684 electric field Effects 0.000 abstract description 8
- 238000009826 distribution Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000005266 casting Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 239000004065 semiconductor Substances 0.000 description 2
- 241000271480 Lachesis muta Species 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000004922 lacquer Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- NHDHVHZZCFYRSB-UHFFFAOYSA-N pyriproxyfen Chemical compound C=1C=CC=NC=1OC(C)COC(C=C1)=CC=C1OC1=CC=CC=C1 NHDHVHZZCFYRSB-UHFFFAOYSA-N 0.000 description 1
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- Insulators (AREA)
- Insulating Bodies (AREA)
Abstract
The utility model relates to an elliptoid bus insulated sleeve comprising an epoxy resin sleeve body, a low-voltage shielding mesh and a high-voltage shielding mesh sleeved inside the low-voltage shielding mesh. The low-voltage shielding mesh and the high-voltage shielding mesh are poured in the epoxy resin sleeve body; the epoxy resin sleeve body is in an elliptoid shape and a rectangular bus through hole for passing through of a rectangular bus is arranged at the middle portion of the epoxy resin sleeve body; and the cross sections of the low-voltage shielding mesh and the high-voltage shielding mesh are in elliptoid shapes. Besides, the low-voltage shielding mesh is connected with a low-voltage metal insert arranged at the periphery of the epoxy resin sleeve body by a connecting wire; and the high-voltage shielding mesh is connected with a high-voltage metal insert arranged in the inner cavity of the epoxy resin sleeve body by a connecting wire. According to the elliptoid bus insulated sleeve provided by the utility model, the electric field between a high-voltage bus and a ground potential becomes uniform. Moreover, the external dimension of the bus sleeve can be substantially reduced; the volume of the sleeve is small; the weight is light; and the performances of the sleeve are stable.
Description
Technical field
The utility model relates to a kind of bus insulating bush, especially a kind of ellipticity bus insulating bush.
Background technology
Present domestic 35kV miniaturization switch cubicle is most to adopt the rectangle isolated bus, and bus casing mostly is circular, and overall dimension is larger, and the non-uniform electric of its high pressure above earth potential causes electric field distortion easily, produces electric discharge phenomena.Some producers adopts on the insulating part surface and is coated with the purpose that reaching of semiconductor resistor lacquer reduced near the voltage drop the casing seat, and this scheme is along with passage of time and such environmental effects semi-conductor electricity resistance have great changes, and sleeve pipe is Discharge Phenomena still.Therefore adopt the oval metallic screen sleeve consistent with the bus profile that the high-tension shielding wire is connected with the high pressure rectangular bus bar, low pressure metal down spare reliable ground, will obviously improve Electric Field Distribution during the energising operation, improve insulation property and stability, prolong the useful life of bus insulating bush and switchgear.
Summary of the invention
The purpose of this utility model is to provide a kind of ellipticity bus insulating bush, this ellipticity bus insulating bush can make the electric field of high voltage bus and earth connection become even, and can greatly dwindle the overall dimension of bus casing, volume is little, lightweight, stable performance.
The technical solution of the utility model is: a kind of ellipticity bus insulating bush, comprise the epoxy resin bushing body, low pressure gauze screen and the high-tension shielding net that is nested with in the low pressure gauze screen, described low pressure gauze screen and high-tension shielding net are cast in the epoxy resin bushing body, described epoxy resin bushing body is vesica piscis epoxy resins union body, and its middle part is provided with the rectangular bus bar that passes through for rectangular bus bar and passes through the hole, the cross section of described low pressure gauze screen and high-tension shielding net is ellipse, described low pressure gauze screen is connected with the low pressure metal inserts that is arranged on external week of epoxy resin bushing through connecting line, and described high-tension shielding net is connected with high-pressure metal inserts in being arranged on the epoxy resin bushing intracoelomic cavity through connecting line.
In one embodiment, the outer middle side part of described vesica piscis epoxy resins union body is provided with for the full skirt that increases creepage distance, described vesica piscis epoxy resins union body inner chamber middle part is oval-shaped passageway, its inner chamber both ends are the truncated cone passage, and described rectangular bus bar passes through on the inward flange that the hole is arranged on oval-shaped passageway.
In one embodiment, described low pressure metal inserts is distributed in external week of epoxy resin bushing symmetrically, and described high-pressure metal inserts is distributed in the oval-shaped passageway symmetrically.
In one embodiment, described connecting line is brass wire.
In one embodiment, described low pressure gauze screen and high-tension shielding net are stainless (steel) wire.
The manufacture method of above-mentioned ellipticity bus insulating bush, carry out according to the following steps:
(1) oval-shaped high-tension shielding net and rectangular bus bar being passed through the high-pressure metal inserts of locating in the hole is connected with connecting line;
(2) oval-shaped low pressure gauze screen is linked to each other with connecting line with low pressure metal inserts on being positioned at installed surface;
(3) by the high and low pressure metal insert high-tension shielding net and low pressure gauze screen are fixed in the casting mold;
(4) pour into a mould through solidifying aftershaping with epoxide resin vacuum.
In one embodiment, the outer middle side part of described vesica piscis epoxy resins union body is provided with for the full skirt that increases creepage distance, described vesica piscis epoxy resins union body inner chamber middle part is oval-shaped passageway, its inner chamber both ends are the truncated cone passage, and described rectangular bus bar passes through on the inward flange that the hole is arranged on oval-shaped passageway.
In one embodiment, described low pressure metal inserts is distributed in external week of epoxy resin bushing symmetrically, and described high-pressure metal inserts is distributed in the oval-shaped passageway symmetrically.
In one embodiment, described connecting line is brass wire.
In one embodiment, described low pressure gauze screen and high-tension shielding net are stainless (steel) wire.
The utility model has the advantage of: the electric field between high voltage bus and earthing potential becomes evenly, and can greatly dwindle the overall dimension of bus casing, and volume is little, lightweight, stable performance.The dielectric strength of product is high, rational in infrastructure, convenient and flexible installation.Test data is better than the product of domestic well-known producer, and product is because the uniform electric field ability is strong, so office's exoergic reaches 10pc following (general producer is 20-50pc), and the withstand voltage 95kV/2min that reaches, the integral insulation performance is better.
Description of drawings
Fig. 1 is ellipticity bus insulating bush master TV structure schematic diagram of the present utility model.
Fig. 2 is the A-A cutaway view among Fig. 1.
Fig. 3 is the B-B cutaway view among Fig. 1.
Fig. 4 is high and low pressure shielding host TV structure schematic diagram.
Fig. 5 is high and low pressure gauze screen side-looking structural representation.
Fig. 6 is over the ground Electric Field Distribution front view of ellipticity bus insulating bush high pressure.
Fig. 7 is over the ground distribution map of the electric field of circular busbar insulating sleeve high pressure.
Fig. 8 is the C-C cutaway view among Fig. 6.
Fig. 9 is the D-D cutaway view among Fig. 6.
Label declaration: 1-epoxy resin bushing body 2-low pressure gauze screen 3-high-tension shielding net 4-rectangular bus bar 5-rectangular bus bar passes through hole 6-connecting line 7-low pressure metal inserts 8-connecting line 9-high-pressure metal inserts 10-full skirt 11-oval-shaped passageway 12-truncated cone passage 13-high-tension shielding wire 14-switch cabinet body.
Embodiment
For above-mentioned feature and advantage of the present utility model can be become apparent, embodiment cited below particularly, and cooperation accompanying drawing be described in detail below, but the utility model are not limited to this.
Ellipticity bus insulating bush of the present utility model comprises epoxy resin bushing body 1, low pressure gauze screen 2 and the high-tension shielding net 3 that is nested with in low pressure gauze screen 2, described low pressure gauze screen 2 and high-tension shielding net 3 are cast in the epoxy resin bushing body 1, described epoxy resin bushing body 1 is vesica piscis epoxy resins union body, the profile that is described epoxy resin bushing body is racetrack, and its middle part is provided with the rectangular bus bar that passes through for rectangular bus bar 4 and passes through hole 5, the cross section of described low pressure gauze screen 2 and high-tension shielding net 3 is ellipse, ellipse described here is racetrack, described low pressure gauze screen 2 is connected with the low pressure metal inserts 7 that is arranged on epoxy resin bushing body 1 periphery through connecting line 6, and described high-tension shielding net 3 is connected with high-pressure metal inserts 9 in being arranged on the epoxy resin bushing intracoelomic cavity through connecting line 8.
In the present embodiment, described vesica piscis epoxy resins union body 1 outer middle side part is provided with for the full skirt 10 that increases creepage distance, described vesica piscis epoxy resins union body 1 inner chamber middle part is oval-shaped passageway 11, its inner chamber both ends are truncated cone passage 12, and described rectangular bus bar passes through on the inward flange that the hole is arranged on oval-shaped passageway.
In the present embodiment, described low pressure metal inserts 7 is distributed in epoxy resin bushing body 1 periphery symmetrically, and described high-pressure metal inserts 9 is distributed in the oval-shaped passageway 11 symmetrically.
In the present embodiment, described connecting line 6 and 8 is brass wire.
In the present embodiment, described low pressure gauze screen 2 and high-tension shielding net 3 are stainless (steel) wire.
The manufacture method of above-mentioned ellipticity bus insulating bush, carry out according to the following steps:
(1) the high-pressure metal inserts 9 usefulness connecting lines 8 that oval-shaped high-tension shielding net 3 and rectangular bus bar passed through hole place 5 are connected;
(2) oval-shaped low pressure gauze screen 2 is linked to each other with low pressure metal inserts 7 usefulness connecting lines 6 on being positioned at installed surface;
(3) by the high and low pressure metal insert high-tension shielding net 3 and low pressure gauze screen 2 are fixed in the casting mold;
(4) pour into a mould through solidifying aftershaping with epoxide resin vacuum.
For what above-mentioned manufacture method need to remark additionally be: described vesica piscis epoxy resins union body 1 outer middle side part is provided with for the full skirt 10 that increases creepage distance, described vesica piscis epoxy resins union body 1 inner chamber middle part is oval-shaped passageway 11, its inner chamber both ends are truncated cone passage 12, and described rectangular bus bar passes through on the inward flange that the hole is arranged on oval-shaped passageway.Described low pressure metal inserts 7 is distributed in epoxy resin bushing body 1 periphery symmetrically, and described high-pressure metal inserts 9 is distributed in the oval-shaped passageway 11 symmetrically.Described connecting line 6 and 8 is brass wire.Described low pressure gauze screen 2 and high-tension shielding net 3 are stainless (steel) wire.
Although the utility model discloses as above with execution mode; so it is not to limit the utility model; anyly have the knack of this skill person; within not breaking away from spirit and scope of the present utility model; when being used for a variety of modifications and variations, therefore protection range of the present utility model is as the criterion when looking accompanying the claim person of defining.
Claims (5)
1. ellipticity bus insulating bush, comprise the epoxy resin bushing body, low pressure gauze screen and the high-tension shielding net that is nested with in the low pressure gauze screen, described low pressure gauze screen and high-tension shielding net are cast in the epoxy resin bushing body, it is characterized in that, described epoxy resin bushing body is vesica piscis epoxy resins union body, and its middle part is provided with the rectangular bus bar that passes through for rectangular bus bar and passes through the hole, the cross section of described low pressure gauze screen and high-tension shielding net is ellipse, described low pressure gauze screen is connected with the low pressure metal inserts that is arranged on external week of epoxy resin bushing through connecting line, and described high-tension shielding net is connected with high-pressure metal inserts in being arranged on the epoxy resin bushing intracoelomic cavity through connecting line.
2. ellipticity bus insulating bush according to claim 1, it is characterized in that, the outer middle side part of described vesica piscis epoxy resins union body is provided with for the full skirt that increases creepage distance, described vesica piscis epoxy resins union body inner chamber middle part is oval-shaped passageway, its inner chamber both ends are the truncated cone passage, and described rectangular bus bar passes through on the inward flange that the hole is arranged on oval-shaped passageway.
3. ellipticity bus insulating bush according to claim 1 and 2 is characterized in that, described low pressure metal inserts is distributed in external week of epoxy resin bushing symmetrically, and described high-pressure metal inserts is distributed in the oval-shaped passageway symmetrically.
4. ellipticity bus insulating bush according to claim 1 is characterized in that, described connecting line is brass wire.
5. ellipticity bus insulating bush according to claim 1 is characterized in that, described low pressure gauze screen and high-tension shielding net are stainless (steel) wire.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220375067 CN202796282U (en) | 2012-07-31 | 2012-07-31 | Elliptoid bus insulated sleeve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220375067 CN202796282U (en) | 2012-07-31 | 2012-07-31 | Elliptoid bus insulated sleeve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202796282U true CN202796282U (en) | 2013-03-13 |
Family
ID=47823495
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220375067 Expired - Fee Related CN202796282U (en) | 2012-07-31 | 2012-07-31 | Elliptoid bus insulated sleeve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202796282U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102768887A (en) * | 2012-07-31 | 2012-11-07 | 福州天宇电气股份有限公司 | Elliptic bus insulation sleeve pipe and manufacturing method thereof |
| CN105655046A (en) * | 2016-03-12 | 2016-06-08 | 江苏士林电气设备有限公司 | Prefabricated type high-voltage full-insulation tubular busbar gas cabinet connection insulating main component |
-
2012
- 2012-07-31 CN CN 201220375067 patent/CN202796282U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102768887A (en) * | 2012-07-31 | 2012-11-07 | 福州天宇电气股份有限公司 | Elliptic bus insulation sleeve pipe and manufacturing method thereof |
| CN105655046A (en) * | 2016-03-12 | 2016-06-08 | 江苏士林电气设备有限公司 | Prefabricated type high-voltage full-insulation tubular busbar gas cabinet connection insulating main component |
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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: 20130313 Termination date: 20200731 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |