CN201877773U - Branch joint for high voltage power cable - Google Patents
Branch joint for high voltage power cable Download PDFInfo
- Publication number
- CN201877773U CN201877773U CN2010206444501U CN201020644450U CN201877773U CN 201877773 U CN201877773 U CN 201877773U CN 2010206444501 U CN2010206444501 U CN 2010206444501U CN 201020644450 U CN201020644450 U CN 201020644450U CN 201877773 U CN201877773 U CN 201877773U
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- branch
- casing
- high voltage
- voltage power
- power cable
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- Expired - Lifetime
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Abstract
The utility model discloses a branch joint for a high voltage power cable, which is characterized in that one end of a cylindrical branch box body is provided with a box cover, the other end of the branch box body is provided with three dry insulating global information system (GIS) terminals of insertion and withdrawal type, the three GIS terminals are connected in the branch box body through soft copper bars and the branch box body is filled with insulating gas. The branch joint for the high voltage power cable has better insulation performance and can branch and connect the high voltage power cable flexibly and conveniently.
Description
Technical field
The utility model relates to a kind of high voltage power cable branch joint, is used for the branch and the connection of high voltage power cable supply line.
Background technology
Power industry is an important component part of national economy, and it has reflected the industrial level of a country, and along with the development of China's power construction, the continuous of electricity needs risen, and more and more to the demand of electric cable fitting, kind also is tending towards diversification.Simultaneously the electric power system cable is carried out branch, connection and installation form and get more and more, be used for satisfying branch and the connection and the constantly requirement of variation of electricity market of electric power system cable under the varying environment.
So research and development high voltage power cable branch joint, the electric power system cable is carried out branch and connection has crucial effects.
The utility model content
Technical problem to be solved in the utility model is to propose a kind of high voltage power cable branch joint, and this branch joint insulation effect is good, can carry out branch and connection to power cable flexibly and easily.
Technical solution of the present utility model is as follows:
A kind of high voltage power cable branch joint, an end of branch cylindraceous casing is provided with case lid, and the other end of branch's casing is provided with 3 plug-in dry insulation GIS terminals, and 3 dry insulation GIS terminals connect by soft copper row in branch's casing; Feeder pillar is filled with insulating gas.
One end of branch's casing also is provided with underframe, and underframe and dry insulation GIS terminal are positioned at the same end of branch's casing.
Described branch casing is provided with density monitor device, explosion-protection equipment and damp-proof device.
Described high voltage power cable branch joint, can realize that at most three branches connect, when the cable branch circuit is not ready, can special-purpose plug be installed at corresponding plug seat, need carry out branch and plug be pulled down when connecting, load onto the cable connect-disconnect plug of handling well the operation of can switching on.
Beneficial effect:
1, branch joint branch casing adopts stainless steel to be welded, three groups of general plug seats (GIS cable end) of inherent factory's Installation and Debugging in advance of case and good seal.In airtight branch casing, fill SF6 gas then, with cable plug seat and branch's casing insulation.
2, explosion-protection equipment, density monitor device (explosion-protection equipment and density monitor device are existing mature technology) and moistureproof adsorbent riding position have been designed in branch's casing both sides, can be effective anti-cold wave, hot excess pressure explosion-proof, and the SF6 gas density is monitored.
3, branch's casing top, both sides are explosion-proof and the moistureproof adsorbent place of laying all adopts case lid to add O type circle sealing means, and are for convenience detach during repair and maintenance, are beneficial to the maintenance or the replacing of inner member.
4, select plug-in dry insulation GIS terminal for use, concrete model is: YJZGG.GIS:gas insulated substation is that the English of gas-insulating and fully-enclosed combined electrical apparatus is called for short, and need not to fill or put SF6 gas during installation, installs more convenient than other cable end.
Adopt the branch joint of technique scheme exploitation, entire product has following characteristics:
1, branch's casing and base are connected as a single entity, whole white paint, and product is elegant in appearance, fills out SF6 gas in the case, and insulation and arc extinguishing ability are strong, and while three groups of prefabricated plug-in cable ends and SF6 gas are isolated fully, and cable need not to fill, puts SF6 gas when installing;
2, the branch joint connect-disconnect plug is the dry type structure partly, need not to add any insulation, waterproof pouring agent, does not exist because of prefabricated stress cone is immersed in to accelerate in the insulation pouring agent the aging of stress cone, the useful life of improving stress cone; And related defects such as leakage of oil have been stopped to occur in the running.
3, can install on branch's casing explosion-protection equipment, density monitor device, moistureproof adsorbent and fill, device such as vent valve, can understand case internal gas pressure size and SF6 gas density immediately, anti-cold wave improves the fail safe of branch joint operation.
4, to have all insulation, hermetically sealed, easy care, volume little for whole branch joint, and compact conformation, the connect-disconnect plug that be easy to installation, maintenance, only needs to handle well when installing insert arbitrary plug, and fastening related components gets final product;
5, the flexible active force of the spring of the awl of the spring in GIS terminal support mechanism acts on the stress cone lastingly reliably, guaranteed that stress cone contacts closely with cable, epoxy cover inner conical surface, overcome the elastic relaxation that stress cone material heat ageing brings and caused drawbacks such as stress cone and the loose contact of cable semi-conductive layer;
6, the cable connected mode is flexible, can realize any two or three kind of different cross section crosslinked cable branch connect; Branch joint can realize that at most three branches connect, and when the cable branch circuit is not ready, can special-purpose plug be installed at corresponding plug seat, in the time of need carrying out branch's connection plug is folded down, and loads onto the cable connect-disconnect plug of handling well the operation of can switching on.
7, parts can be changed.When electric network reconstruction or when changing cable, connect-disconnect plug can be extracted or case lid is opened, its related components is changed, have characteristics such as be easy to installations, maintenance, can significantly reduce the loss that causes owing to interruption duration length.
8, the stress cone of cable end adopts the import ethylene propylene diene monomer (EPDM) material, annotates the manufacturing of rubber apparatus processing through import, and electric property is superior.
In sum, the utility model is a kind of simple installation, superior electrical property, safe and reliable to operation, appearance looks elegant, generous, realizes the electric cable accessories device that electric power system single-core cable branch connects.
Description of drawings
Fig. 1 is the general structure schematic diagram of high voltage power cable with branch joint.
Fig. 2 is the A-A view of Fig. 1.
Label declaration: 1-explosion-protection equipment, 2-SF6 gas-insulated medium, 3-soft copper row, 4-branch casing, 5-plug-in GIS terminal (cable end), 6-underframe, 7-density monitor device, 8-case lid, 9-damp-proof device.
Embodiment
Below with reference to the drawings and specific embodiments the utility model is described in further details:
Embodiment 1:
Shown in Fig. 1-2, branch joint is a high-voltage cross-linking polythene insulated power cable branch joint, is made up of branch's casing and underframe, branch's casing is cylindric, and stainless steel material is welded, and underframe is welded by steel, comprise 4 root posts, the integral body of underframe is cube shaped.Branch's casing is connected with bolt with underframe and is integrated.Branch's casing comprises spare and accessory parts such as plug-in GIS terminal, electric component and forms.By charge valve feeder pillar is filled SF6 gas (also can be other insulating gas), realize the insulation of cable plug seat and branch's casing, finally realize the connection of the reliable branch of electric power system cable.
Branch joint is installed and used: prefabricated branch joint is installed and fixed, and the mounting process of plug-in GIS terminal (being cable end) routinely carries out branch or connection processing to cable.
Claims (3)
1. high voltage power cable branch joint, it is characterized in that, one end of branch cylindraceous casing is provided with case lid, and the other end of branch's casing is provided with 3 plug-in dry insulation GIS terminals, and 3 dry insulation GIS terminals connect by soft copper row in branch's casing; Feeder pillar is filled with insulating gas.
2. high voltage power cable branch joint according to claim 1 is characterized in that, an end of branch's casing also is provided with underframe, and underframe and dry insulation GIS terminal are positioned at the same end of branch's casing.
3. high voltage power cable branch joint according to claim 1 and 2 is characterized in that, described branch casing is provided with density monitor device, explosion-protection equipment and damp-proof device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206444501U CN201877773U (en) | 2010-12-06 | 2010-12-06 | Branch joint for high voltage power cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206444501U CN201877773U (en) | 2010-12-06 | 2010-12-06 | Branch joint for high voltage power cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201877773U true CN201877773U (en) | 2011-06-22 |
Family
ID=44165682
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206444501U Expired - Lifetime CN201877773U (en) | 2010-12-06 | 2010-12-06 | Branch joint for high voltage power cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201877773U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018069651A1 (en) | 2016-10-14 | 2018-04-19 | Supergrid Institute | Underwater electrical connection system |
| CN111181013A (en) * | 2019-12-20 | 2020-05-19 | 河南平高电气股份有限公司 | GIS cover plate assembly and GIS |
-
2010
- 2010-12-06 CN CN2010206444501U patent/CN201877773U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018069651A1 (en) | 2016-10-14 | 2018-04-19 | Supergrid Institute | Underwater electrical connection system |
| US10756529B2 (en) | 2016-10-14 | 2020-08-25 | Supergrid Institute | Underwater electrical connection system |
| CN111181013A (en) * | 2019-12-20 | 2020-05-19 | 河南平高电气股份有限公司 | GIS cover plate assembly and GIS |
| CN111181013B (en) * | 2019-12-20 | 2022-04-05 | 河南平高电气股份有限公司 | GIS cover plate assembly and GIS |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: CHANGLAN ELECTRICAL TECHNOLOGY CO., LTD. Free format text: FORMER NAME: CHANGSHA CABLE ACCESSORY CO., LTD. |
|
| CP01 | Change in the name or title of a patent holder |
Address after: 410205 Hunan province Changsha City Lugu high tech Industrial Park District Tongzi Po Road No. 223 Patentee after: Changlan Cable Accessories Co., Ltd. Address before: 410205 Hunan province Changsha City Lugu high tech Industrial Park District Tongzi Po Road No. 223 Patentee before: Changsha Cable Accessory CO., Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110622 |