CN201340968Y - Insulating cylinder applicable to 24KV high voltage switch cabinet - Google Patents
Insulating cylinder applicable to 24KV high voltage switch cabinet Download PDFInfo
- Publication number
- CN201340968Y CN201340968Y CNU2008201699723U CN200820169972U CN201340968Y CN 201340968 Y CN201340968 Y CN 201340968Y CN U2008201699723 U CNU2008201699723 U CN U2008201699723U CN 200820169972 U CN200820169972 U CN 200820169972U CN 201340968 Y CN201340968 Y CN 201340968Y
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- cylinder
- wall
- insulating cylinder
- cylindrical shell
- insulating
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Abstract
The utility model relates to an insulating cylinder applicable to a 24KV high voltage switch cabinet, comprising a cylinder body. Two wire outlet openings are arranged on the cylinder body and protrude from the outer wall on one side of the cylinder body; the centre lines of the wire outlet openings are parallel to each other; and the wire outlet openings adopt a two-ring cylinder structure. The insulating cylinder has the advantages in that: 1. the wire outlet openings adopt the two-ring structure, thereby not only being inserted into protective sleeves simply, conveniently and firmly but also extending the creepage distance; 2. sheds are arranged on the inner wall and the outer wall of the cylinder body for extending the creepage distance so that the insulating cylinder is applicable to high altitude areas; 3. the space between the wire outlet openings is 3,100 mm, thus fully satisfying the needs of matching installation of an upper outlet wire, a lower outlet wire and the contact box, and the inside of the cylinder body is more suitable for a vacuum arc extinction chamber breaker and a support seat to be installed; 4. an insulating cap fastener is adopted as a cover to be fastened on the upper cylinder opening for preventing dust from polluting the vacuum arc extinction chamber, thus reducing the repair rate and preventing the electric arc generated by the on and off of the breaker from affecting a cabinet body simultaneously.
Description
Technical field
The utility model belongs to the accessory manufacturing technology field of high-tension switch cabinet, particularly a kind of insulating cylinder that is applicable to the 24KV high-tension switch cabinet.
Background technology
Insulating cylinder is one of main accessory of switch cubicle, and it is the protection mechanism of circuit breaker.The insulating cylinder of user mode is under the forceful electric power pressure.Therefore, electrical insulation capability, installation capability, temperature and thermal stability, mechanical performance etc. are its major technology parameters, and these performances must reach certain parameter request, just can guarantee to move safely and reliably.
According to the regulation of GB156-2003 " normal voltage ", when the nominal voltage of network system was 20KV, then the corresponding equipment rated voltage was 24KV.Generally use at present the grid power transmission of 10KV, compare, adopt the 20KV grid power transmission can reduce line loss greatly with the 10KV grid power transmission.So the 20KV electric pressure is a development in future trend.
The line outlet of existing insulating cylinder all is the monocycle cylindrical structural, discloses a kind of 10KV high-pressure vacuum breaker insulating cylinder as China Patent No. ZL200720175022.7, its line outlet be employing be the monocycle cylindrical configuration.And the shortcoming that the columniform line outlet of monocycle exists is: at first, the instrumentation operations between line outlet and the protective sleeve is not easy, and grafting between the two is also insecure; Secondly, creepage distance is short, is punctured by highfield easily.Therefore, be necessary existing insulating cylinder structure is done some improvement and innovation, so that it overcomes above-mentioned shortcoming.
Summary of the invention
The utility model discloses a kind of insulating cylinder, in its high-tension switch cabinet applicable to 24KV, it has solved the above-mentioned technical problem that existing insulating cylinder exists.
For solving the problems of the technologies described above, technical solution adopted in the utility model: the insulating cylinder that is applicable to the 24KV high-tension switch cabinet, comprise cylindrical shell, cylindrical shell is provided with two line outlets, two line outlets protrude in the homonymy outer wall of cylindrical shell, the central axis of two line outlets parallels, and two line outlets adopt the dicyclo column structure.
Described insulating cylinder, two line outlets are in the top and the middle and lower part of cylindrical shell respectively, and the central axis of two line outlets is at a distance of 310mm.
Described insulating cylinder, the cylinder body outer wall between two line outlets is provided with reinforcement, also establishes reinforcement with the cylinder body outer wall of this reinforcement opposite side.
Described insulating cylinder, two line outlets are respectively over against the location hole of cylinder inboard wall.
Described insulating cylinder, the cylinder body outer wall in two line outlet inside are provided with a pair of outlet location inserts.
Described insulating cylinder, the inside and outside wall of cylindrical shell forms diffusing skirt respectively.
Described insulating cylinder, the outer diffusing skirt of cylindrical shell are provided with 7 circles altogether.
Described insulating cylinder, the bottom surface of cylindrical shell has annular groove, embedded sealing ring in the annular groove.
Described insulating cylinder, the external wall of upper portion of cylindrical shell is provided with cap and buckles.
The utility model insulating cylinder has the following advantages:
1, the line outlet of this insulating cylinder adopts twin nuclei, both can be easy and firmly and the protective sleeve plug-in mounting, can increase creepage distance again, and prevent that insulating cylinder from being punctured by highfield.
2, all be provided with diffusing skirt in the cylindrical shell inside and outside wall,, make the creepage distance lengthening, the insulation property requirement that has improved insulating cylinder to increase corresponding creep distance; Through analysis of electric field, this insulating cylinder is suitable for the high altitude localities and uses.
3, the spacing between this insulating cylinder two line outlets is 3100mm, and this spacing fully satisfies between upper and lower outlet and contact box and cooperates installation; And inner barrel is more suitable for the installation of vacuum interrupter circuit breaker and bearing.
4, adopt insulator cap button snapping lid in last nozzle,, reduce maintenance rate, reduce maintenance cost to prevent the pollution of dust to arc control device; Simultaneously, can prevent the influence of electric arc that circuit breaker produced when cut-offfing to cabinet.
Description of drawings
Fig. 1 is a perspective view of the present utility model.
Fig. 2 is a longitudinal sectional view of the present utility model.
Fig. 3 is that the A of Fig. 2 is to view.
Fig. 4 is that the B of Fig. 2 is to view.
Embodiment
Below in conjunction with accompanying drawing the utility model is elaborated.
Shown in Fig. 1-4, this insulating cylinder adopts epoxy resin to make, and it comprises columned hollow cylinder 14, and cylindrical shell bottom surface 12 has annular groove, embedded sealing ring 13 in the annular groove, and bottom surface 12 is uniformly distributed along the circumference five inserts 9 is installed.
The bottom inside and outside wall of cylindrical shell 14 forms the skirt 15,1 that looses respectively, and the skirt 1 that looses outward is provided with 7 circles altogether.In the cylindrical shell inside and outside wall diffusing skirt is set all, prolongs creepage distance to increase corresponding creep distance, thereby improved the insulation property of product.Through analysis of electric field, it is applicable to the high altitude localities.
The barrel of cylindrical shell 14 is offered line outlet 4, following line outlet 3, and last line outlet 4 is in the top of cylindrical shell 14, and following line outlet 3 is in the middle and lower part of cylindrical shell 14, and the central axis of two line outlets parallels, and at a distance of 310mm.The spacing of 310mm fully satisfies upper and lower line outlet and cooperates installation with contact box, the installation of inner barrel vacuum interrupter circuit breaker preferably and bearing between two line outlets.Cylindrical shell 14 outer walls in 3,4 of line outlets up and down are provided with reinforcement 11, with cylindrical shell 14 outer walls of these reinforcement 11 opposite sides reinforcement 11 are arranged also, to strengthen the intensity of cylindrical shell.
Following line outlet 3 protrudes in 14 ones of cylindrical shells and is cylindric, and this protuberance adopts twin nuclei, and promptly this protuberance has two hollow shape cylinders, is respectively interior cylinder 31, outside cylinder 32, leaves one section space between the inwall of the outer wall of interior cylinder 31 and outside cylinder 32.Following line outlet 3 is over against the following location hole 6 of cylinder inboard wall 2, and the cylinder body outer wall in following line outlet 3 inside is provided with a pair of outlet down location inserts 8.Last line outlet 4 protrudes in 14 ones of cylindrical shells and is cylindric, and this protuberance also adopts twin nuclei, and promptly this protuberance has two hollow shape cylinders, is respectively interior cylinder 41, outside cylinder 42, leaves one section space between the inwall of the outer wall of interior cylinder 41 and outside cylinder 42.Last line outlet 4 is over against the last location hole 5 of cylinder inboard wall 2, and the cylinder body outer wall in last line outlet 4 inside is provided with a pair of outlet location inserts 7 of going up.Two line outlets adopt twin nuclei, can with the direct socket of protection sleeve, with easy and mounting insulation tube securely, more increased creepage distance, improved insulation property, prevent to insulate barrel and punctured by highfield.
Be provided with cap in the external wall of upper portion of cylindrical shell 14 and buckle 10, cap snapping lid.The last nozzle of cylindrical shell adopts cap snapping lid, to prevent the pollution of dust to arc control device, reduces maintenance rate, reduces maintenance cost, and can prevent the influence to cabinet of electric arc that circuit breaker produced when cut-offfing.
The basic mechanical design feature index of the utility model insulating cylinder: vitrification point (Tg): 90～100 ℃; Industrial frequency withstand voltage: 65KV/1min; Partial discharge is not more than 5pC; Lightning impulse voltage: 125KV; Hot strength 70～90Mpa; Bending strength 110～130Mpa.
Insulating cylinder of the present utility model can satisfy the user demand of 24KV high-tension switch cabinet, guarantees that electric equipment moves safely and reliably.
Claims (9)
1, be applicable to the insulating cylinder of 24KV high-tension switch cabinet, comprise cylindrical shell, cylindrical shell is provided with two line outlets, and two line outlets protrude in the homonymy outer wall of cylindrical shell, and the central axis of two line outlets parallels, and it is characterized in that: two line outlets adopt the dicyclo column structure.
2, insulating cylinder as claimed in claim 1 is characterized in that: two line outlets are in the top and the middle and lower part of cylindrical shell respectively, and the central axis of two line outlets is at a distance of 310mm.
3, insulating cylinder as claimed in claim 1 or 2 is characterized in that: the cylinder body outer wall between two line outlets is provided with reinforcement, also establishes reinforcement with the cylinder body outer wall of this reinforcement opposite side.
4, insulating cylinder as claimed in claim 3 is characterized in that: two line outlets are respectively over against the location hole of cylinder inboard wall.
5, insulating cylinder as claimed in claim 4 is characterized in that: the cylinder body outer wall in two line outlet inside is provided with a pair of outlet location inserts.
6, insulating cylinder as claimed in claim 1 is characterized in that: the inside and outside wall of described cylindrical shell forms diffusing skirt respectively.
7, insulating cylinder as claimed in claim 6 is characterized in that: the outer diffusing skirt of described cylindrical shell is provided with 7 circles altogether.
8, as claim 1 or 6 described insulating cylinders, it is characterized in that: the bottom surface of described cylindrical shell has annular groove, embedded sealing ring in the annular groove.
9, as claim 1 or 6 or 7 described insulating cylinders, it is characterized in that: the external wall of upper portion of described cylindrical shell is provided with cap and buckles.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201699723U CN201340968Y (en) | 2008-12-15 | 2008-12-15 | Insulating cylinder applicable to 24KV high voltage switch cabinet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201699723U CN201340968Y (en) | 2008-12-15 | 2008-12-15 | Insulating cylinder applicable to 24KV high voltage switch cabinet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201340968Y true CN201340968Y (en) | 2009-11-04 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201699723U Expired - Fee Related CN201340968Y (en) | 2008-12-15 | 2008-12-15 | Insulating cylinder applicable to 24KV high voltage switch cabinet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201340968Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102856039A (en) * | 2011-06-30 | 2013-01-02 | 汉中新环干式变压器有限责任公司 | 69kv dry type transformer core |
| CN104795284A (en) * | 2015-05-05 | 2015-07-22 | 正泰电气股份有限公司 | Insulating cylinder applicable to circuit breakers at 3.6kV rated voltage and below |
| CN116544031A (en) * | 2023-05-31 | 2023-08-04 | 广东电网有限责任公司佛山供电局 | Protective device for protecting wiring terminal of high-voltage capacitor and application method of protective device |
| CN116544031B (en) * | 2023-05-31 | 2024-04-19 | 广东电网有限责任公司佛山供电局 | Protective device for protecting wiring terminal of high-voltage capacitor and application method of protective device |
-
2008
- 2008-12-15 CN CNU2008201699723U patent/CN201340968Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102856039A (en) * | 2011-06-30 | 2013-01-02 | 汉中新环干式变压器有限责任公司 | 69kv dry type transformer core |
| CN104795284A (en) * | 2015-05-05 | 2015-07-22 | 正泰电气股份有限公司 | Insulating cylinder applicable to circuit breakers at 3.6kV rated voltage and below |
| CN116544031A (en) * | 2023-05-31 | 2023-08-04 | 广东电网有限责任公司佛山供电局 | Protective device for protecting wiring terminal of high-voltage capacitor and application method of protective device |
| CN116544031B (en) * | 2023-05-31 | 2024-04-19 | 广东电网有限责任公司佛山供电局 | Protective device for protecting wiring terminal of high-voltage capacitor and application method of protective device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: ZHEJIANG LEIAN ELECTRIC CO., LTD. Free format text: FORMER OWNER: ZHEJIANG ROXZ ELECTRIC APPLIANCE CO., LTD. Effective date: 20101227 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20101227 Address after: 317605 Zhejiang province Yuhuan County Truman Zhen Nan Xing Road No. 190 Patentee after: Zhejiang Leian Electric Co., Ltd. Address before: 317605 Zhejiang province Yuhuan County Truman Zhen Nan Xing Road No. 190 Patentee before: Zhejiang ROXZ Electric Appliance Co., Ltd. |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20091104 Termination date: 20131215 |