CN201754358U - Bus insulating bush - Google Patents
Bus insulating bush Download PDFInfo
- Publication number
- CN201754358U CN201754358U CN2010202255021U CN201020225502U CN201754358U CN 201754358 U CN201754358 U CN 201754358U CN 2010202255021 U CN2010202255021 U CN 2010202255021U CN 201020225502 U CN201020225502 U CN 201020225502U CN 201754358 U CN201754358 U CN 201754358U
- Authority
- CN
- China
- Prior art keywords
- bus
- sleeve pipe
- insulation sleeve
- ring
- shielding ring
- 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 - Lifetime
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- Installation Of Bus-Bars (AREA)
Abstract
The utility model provides a bus insulating bush. A conductive first shielding ring and a conductive second shielding ring are embedded in the insulating pipe body of the bus insulating bush; the first shielding ring and the second shielding ring are coaxially sheathed at interval; the first shielding ring is electrically connected with a bus penetrating through the bus insulating bush; and the second shielding ring is earthed. As the first shielding ring and the second shielding ring are embedded in the insulating pipe body of the bus insulating bush, the strength of the electric field in the bus insulating bush is uniformly distributed, thereby effectively solving the problem of reducing the insulating performance of the bush due to the discharge of local air gaps, so as to improve the service life and the using safety of the bus insulating bush.
Description
Technical field
The utility model relates to bus insulation sleeve pipe field, in particular to a kind of bus insulation sleeve pipe that is used to pass the high-pressure metal sealing switch equipment.
Background technology
In present 35kV switch cubicle system, bus is when passing the high-pressure metal sealing switch equipment, must use the bus insulation sleeve pipe, and existing bus insulation sleeve pipe is simple molding for epoxy resin structure, though can play certain buffer action, in sleeve pipe, local electric field strength is very inhomogeneous, cause the local air gap discharge easily, discharge can cause the reduction of sleeve pipe insulation property for a long time, life-span and fail safe that influence is used.
The utility model content
Technical problem to be solved in the utility model provides a kind of bus insulation sleeve pipe of safe in utilization and long service life.
In order to solve the problems of the technologies described above, the utility model provides a kind of bus insulation sleeve pipe, embedded first shading ring and the secondary shielding ring that is equipped with conduction of the insulation body of bus insulation sleeve pipe, first shading ring and the sheathed and space of secondary shielding ring concentric, first shading ring is electrically connected with the bus that passes the bus insulation sleeve pipe, secondary shielding articulating ground.
Further, the stage casing of insulation body is provided with mounting flange.
Further, the stage casing inwall of insulation body is provided with the dividing plate that radially extends, and dividing plate is provided with the through hole that passes through for bus.
Further, also be provided with equipotential line on the dividing plate, equipotential line is connected between the bus and first shading ring.
Further, the secondary shielding ring is connected with embedded nut on the mounting flange and by this embedded nut ground connection.
Further, the tube wall of insulation body is provided with to increase and climbs cluster parachute.
Further, first shading ring is positioned at the nearly inwall place of insulation body, and the secondary shielding ring is positioned at the nearly outer wall place of insulation body.
Further, the spacing between first shading ring and the secondary shielding ring is 33mm.
Further, first shading ring and secondary shielding ring are the net metal cylinder.
Adopt the bus insulation sleeve pipe of said structure to have following beneficial effect: by at the embedded double shield ring of putting of the insulation body of bus insulation sleeve pipe, make bus insulation sleeve pipe internal electric field intensity distributions even, thereby the problem that the sleeve pipe insulation property that solved the local air gap discharge effectively and caused reduce, and then the useful life and the safety in utilization of bus insulation sleeve pipe have been improved.
Description of drawings
Accompanying drawing described herein is used to provide further understanding of the present utility model, constitutes the application's a part, and illustrative examples of the present utility model and explanation thereof are used to explain the utility model, do not constitute improper qualification of the present utility model.In the accompanying drawings:
Fig. 1 shows the bus insulation sleeve pipe vertical structure schematic diagram of the utility model preferred embodiment; And
Fig. 2 shows the schematic cross-section of the mounting flange section of bus insulation sleeve pipe shown in Figure 1.
Embodiment
Below with reference to the accompanying drawings and in conjunction with the embodiments, describe the utility model in detail.
As depicted in figs. 1 and 2, this bus insulation sleeve pipe has the insulation body of a ring-type, the hole 7 of the hollow space of this insulation body for passing through for bus.Interlude longitudinally at the insulation body has one to be used for the mounting flange 3 that the bus insulation sleeve pipe is fixing, and the bus insulation sleeve pipe is that symmetry axis is symmetrical with mounting flange 3.Mounting flange 3 is provided with fixing hole 8.
The insulation body has to increase climbs cluster parachute 5, is used to increase the creep distance of bus insulation sleeve pipe.The inwall that the mounting flange of bus insulation sleeve pipe is 3 sections is provided with an insulating barrier 4, is provided with on dividing plate 4 and a corresponding through hole of the shape of generatrix of wearing, and when bus passed this through hole, dividing plate 4 was played a supporting role.
In the tube wall of insulation body, be equipped with one group of metallic shield net, be divided into high-tension shielding net 1 and low pressure gauze screen 2.High-tension shielding net 1 is sheathed with low pressure gauze screen 2 concentrics, and the longitudinal extension of edge insulation body.High-tension shielding net 1 is positioned at ring, and low pressure gauze screen 2 is positioned at outer shroud, and the thickness of the insulator between high-tension shielding net 1 and the low pressure gauze screen 2 is 33mm.
High-tension shielding net 1 links to each other with bus by the equipotential line 6 on the dividing plate 4, makes bus equate with the current potential of high-tension shielding net 1, and electrode shape is regular more; Low pressure gauze screen 2 ground connection like this, are just guided to electric field between two metallic shield nets, make the electric field strength in the bus insulation sleeve pipe more even.
When the bus insulation sleeve pipe was installed, equipotential line 6 one ends were fixed by the embedded nut of the high-tension shielding net 1 in bolt and the insulation body, and the other end is fixed by bolt and bus, connects more reliable like this.Low pressure gauze screen 2 is communicated with the metallic plate and the ground of switch cubicle by the embedded nut on the mounting flange, reaches the purpose of reliable ground.
The above is a preferred embodiment of the present utility model only, is not limited to the utility model, and for a person skilled in the art, the utility model can have various changes and variation.All within spirit of the present utility model and principle, any modification of being done, be equal to replacement, improvement etc., all should be included within the protection range of the present utility model.
Claims (9)
1. bus insulation sleeve pipe, it is characterized in that, embedded first shading ring and the secondary shielding ring that is equipped with conduction of the insulation body of described bus insulation sleeve pipe, described first shading ring and the sheathed and space of described secondary shielding ring concentric, described first shading ring is electrically connected with the bus that passes described bus insulation sleeve pipe, described secondary shielding articulating ground.
2. bus insulation sleeve pipe according to claim 1 is characterized in that the stage casing of described insulation body is provided with mounting flange.
3. bus insulation sleeve pipe according to claim 1 is characterized in that, the stage casing inwall of described insulation body is provided with the dividing plate that radially extends, and described dividing plate is provided with the through hole that passes through for described bus.
4. bus insulation sleeve pipe according to claim 3 is characterized in that, also is provided with equipotential line on the described dividing plate, and described equipotential line is connected between described bus and described first shading ring.
5. bus insulation sleeve pipe according to claim 2 is characterized in that, described secondary shielding ring is connected with embedded nut on the described mounting flange and by this embedded nut ground connection.
6. bus insulation sleeve pipe according to claim 1 is characterized in that, the tube wall of described insulation body is provided with to increase climbs cluster parachute.
7. bus insulation sleeve pipe according to claim 1 is characterized in that, described first shading ring is positioned at the nearly inwall place of described insulation body, and described secondary shielding ring is positioned at the nearly outer wall place of described insulation body.
8. bus insulation sleeve pipe according to claim 1 is characterized in that, the spacing between described first shading ring and the described secondary shielding ring is 33mm.
9. according to the arbitrary described bus insulation sleeve pipe of claim 1 to 8, it is characterized in that described first shading ring and described secondary shielding ring are the net metal cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202255021U CN201754358U (en) | 2010-06-09 | 2010-06-09 | Bus insulating bush |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202255021U CN201754358U (en) | 2010-06-09 | 2010-06-09 | Bus insulating bush |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201754358U true CN201754358U (en) | 2011-03-02 |
Family
ID=43622090
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202255021U Expired - Lifetime CN201754358U (en) | 2010-06-09 | 2010-06-09 | Bus insulating bush |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201754358U (en) |
Cited By (4)
| 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 |
| CN105575560A (en) * | 2016-03-02 | 2016-05-11 | 南通东源协力电器有限公司 | 12kV shielding casing |
| CN107633929A (en) * | 2017-10-25 | 2018-01-26 | 镇江市益宝电气科技有限公司 | One kind insulation high fire-retardance bus insulating bush and its production technology |
| CN112701786A (en) * | 2020-12-21 | 2021-04-23 | 盘锦广利达电气有限公司 | 220kV and below electric voltage class skid-mounted electronic control integrated transformer substation |
-
2010
- 2010-06-09 CN CN2010202255021U patent/CN201754358U/en not_active Expired - Lifetime
Cited By (4)
| 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 |
| CN105575560A (en) * | 2016-03-02 | 2016-05-11 | 南通东源协力电器有限公司 | 12kV shielding casing |
| CN107633929A (en) * | 2017-10-25 | 2018-01-26 | 镇江市益宝电气科技有限公司 | One kind insulation high fire-retardance bus insulating bush and its production technology |
| CN112701786A (en) * | 2020-12-21 | 2021-04-23 | 盘锦广利达电气有限公司 | 220kV and below electric voltage class skid-mounted electronic control integrated transformer substation |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110302 |