CN102231488B - High-voltage gas insulated termination mounting and positioning structure - Google Patents
High-voltage gas insulated termination mounting and positioning structure Download PDFInfo
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- CN102231488B CN102231488B CN201110100854.3A CN201110100854A CN102231488B CN 102231488 B CN102231488 B CN 102231488B CN 201110100854 A CN201110100854 A CN 201110100854A CN 102231488 B CN102231488 B CN 102231488B
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Abstract
The invention discloses a high-voltage gas immersed termination mounting and positioning structure. A pluggable high-voltage gas immersed termination (GIS) comprises a high-voltage cable, an epoxy sleeve, an inner insulator and a plugging and unplugging mechanism. The structure is characterized in that: three groups of sliding pins and springs are radially uniformly distributed on the end part of a moving contact in the plugging and unplugging mechanism; three sliding chutes are axially formed on the inner hole sidewall of an upper electrode of the epoxy sleeve; the roots of the three sliding chutes are radially provided with a positioning groove respectively; and the three groups of sliding pins and springs of the end part of the moving contact are assembled, disassembled, moved and positioned by the three corresponding sliding chutes and the corresponding positioning grooves. The structure realizes the function of plugging and unplugging the cable relative to the epoxy sleeve, improves the positioning accuracy of the cable, simplifies a mounting process and improves the construction efficiency.
Description
Technical field
The present invention relates to the mounting structure of a kind of gas insulated terminal (GIS terminal), particularly disclose a kind of installation and positioning structure of gases at high pressure insulation terminal, be applicable to the installation location of 110kV and above GIS terminal.
Background technology
Gas insulated terminal (gas immersed termination, be called for short GIS terminal), is arranged on the inner cable termination of take the gas-insulated part that sulphur hexafluoride (SF6) gas is external insulation of gas insulating enclosed switch equipment (GIS).High pressure GIS terminal is mainly comprised of high-tension cable, epoxy bushing, interior insulation system, by mounting means, is mainly divided into common GIS terminal and plug-in GIS terminal.
Common GIS terminal, can only be by after whole terminal installation, and then in the whole GIS of insertion cylindrical shell, sealing is installed.
Plug-in GIS terminal, can realize first epoxy bushing and the sealing of GIS cylindrical shell are installed, and even epoxy bushing can installation before GIS switch dispatches from the factory, like this, in erecting bed, without opening again GIS cylindrical shell, reduce the possibility of polluting GIS inside, and reduce a large amount of vacuum processing time.
Current plug-in GIS terminal generally adopts moving contact, and as watchband-shaped contactor, the plug realizing on electric connects.But cable and epoxy bushing still unrealized machinery are fixed, can only be to rely on the cable anchor ear of terminal afterbody to realize axial restraint (seeing figure mono-).This fixing and unreliable, once the inner generation of cable axial displacement, the interior insulation of terminal inevitable occurrence positions changes, and the performance of terminal cannot guarantee.The cable location of this structure is that after inserting epoxy bushing by control cables, exposed parts length L is determined, cable is decided to be accurate not, and installation process and fixed form are also comparatively loaded down with trivial details.
Summary of the invention
The object of the invention is to address the deficiencies of the prior art, a kind of installation and positioning structure of gases at high pressure insulation terminal is disclosed, it is a kind of installation and positioning structure of fast simple high pressure GIS terminal, realized the plug function of cable with respect to epoxy bushing, improve the accuracy of cable location, simplify installation process, improve efficiency of construction.
The present invention is achieved in that a kind of installation and positioning structure of gases at high pressure insulation terminal, and plug-in gases at high pressure insulation terminals (GIS terminal) comprise high-tension cable, epoxy bushing, interior insulation and push-pull structure, the top electrode of epoxy bushing is provided with endoporus, the endoporus of described top electrode is blind hole, moving contact coordinates in the endoporus of described top electrode, moving contact and outlet rod are connected as a single entity, outlet rod adopts mechanical crimping to be connected with high-tension cable core, the structure of this part of outlet rod is barrel shell structure, it is characterized in that: described push-pull structure is for to be provided with 3 groups of sliding pins and spring at moving contact end radial equipartition, at described top electrode endoporus sidewall, be axially arranged with 3 chutes, root at described 3 chutes radially arranges location notch, 3 groups of sliding pins of moving contact end and spring are respectively by realizing mounting or dismounting running fix in corresponding 3 chutes and location notch.The radial angle of 3 chutes on the endoporus sidewall of 3 groups of sliding pins of described moving contact end and spring radial angle and top electrode is identical.
The invention has the beneficial effects as follows: realized the plug function of cable with respect to epoxy bushing, make the location of cable more accurate, also guaranteed the long-term reliability of cable location simultaneously, improve site operation efficiency, save the cable anchor ear structure of terminal afterbody, make product more succinctly attractive in appearance.
Accompanying drawing explanation
Fig. 1 is the plug-in GIS terminal structure schematic diagram of prior art.
Fig. 2 is high pressure GIS terminal installation and positioning structure schematic diagram of the present invention.
Fig. 3 is that the A-A of Fig. 2 is to cutaway view.
Embodiment
With reference to the accompanying drawings 1,2 and 3, a kind of installation and positioning structure of gases at high pressure insulation terminal, plug-in gases at high pressure insulation terminals (GIS terminal) comprise high-tension cable 10, GIS cylindrical shell 8, epoxy bushing 7, interior insulation and push-pull structure.The top electrode 4 of epoxy bushing 7 is provided with endoporus, the endoporus of top electrode 4 is blind hole, and moving contact 6 coordinates in the endoporus of top electrode 4, and moving contact 6 is connected as a single entity with outlet rod 3, outlet rod 3 adopts mechanical crimping to be connected with high-tension cable core 9, and the structure of outlet rod 3 these parts is barrel shell structure.Push-pull structure is for to install in advance 3 groups of sliding pins and spring 1 at moving contact 6 end radial equipartitions, top electrode 4 endoporus side-wall shafts to processing 3 chutes 2, root at 3 chutes 2 radially arranges location notch 5, and 3 groups of sliding pins of moving contact 6 ends and spring 1 are respectively by realizing mounting or dismounting running fix in corresponding 3 chutes 2 and location notch 5.The radial angle of 3 chutes 2 on the endoporus sidewall of 3 groups of sliding pins of moving contact 6 ends and spring radial angle and top electrode 4 is identical.
When the 9 location crimping of outlet rod 3 and core, by the relative angle α that staggers of 3 chutes 2 on 3 groups of sliding pins on outlet rod 3 and the relative top electrode 4 of spring.At cable 10, insert in epoxy bushing 7 processes, 3 groups of sliding pins and spring on outlet rod 3 are radially stepped down and reset along with top electrode 4 variations in endoporus aperture and the effect of spring produce, and finally slip into and in location notch 5 set on top electrode 4 endoporus, realize cable location.
When product needed is dismantled, first remove GIS cylindrical shell 8, unclamp connecting of epoxy bushing 7 and interior insulation, then epoxy bushing 7 is rotated to an angle [alpha] relative to cable 10, make 3 groups of sliding pins and spring on the outlet rod 3 of interior 3 chutes of top electrode 4 and cable 10 corresponding, remove epoxy bushing 7, realize the separated of epoxy bushing 7 and cable 10.Because this structure adopts location notch location, make the location between cable and epoxy bushing more accurate, convenient, reliable.
Claims (2)
1. an installation and positioning structure for gases at high pressure insulation terminal, plug-in gases at high pressure insulation terminal comprises high-tension cable, epoxy bushing, interior insulation and push-pull structure, the top electrode of epoxy bushing is provided with endoporus, the endoporus of described top electrode is blind hole, moving contact coordinates in the endoporus of described top electrode, moving contact and outlet rod are connected as a single entity, outlet rod adopts mechanical crimping to be connected with high-tension cable core, the structure of this part of outlet rod is barrel shell structure, it is characterized in that: described push-pull structure is for to be provided with 3 groups of sliding pins and spring at moving contact end radial equipartition, top electrode endoporus sidewall at described epoxy bushing is axially arranged with 3 chutes, root at described 3 chutes radially arranges location notch, when outlet rod and the crimping of core location, by the relative angle that staggers of 3 chutes on 3 groups of sliding pins on outlet rod and the relative top electrode of spring, at cable, insert in the process of epoxy bushing, 3 groups of sliding pins on outlet rod and spring are radially stepped down and reset along with the variation in top electrode endoporus aperture and the effect of spring produce, finally slip into and in location notch set on top electrode endoporus, realize cable location, when needs are dismantled, first remove GIS cylindrical shell, unclamp connecting of epoxy bushing and interior insulation, then by relative electric cable rotary one angle of epoxy bushing, make in top electrode 3 groups of sliding pins and spring on the outlet rod of 3 chutes and cable corresponding, remove epoxy bushing, realize the separated of epoxy bushing and cable.
2. according to the installation and positioning structure of a kind of gases at high pressure insulation terminal described in claim 1, it is characterized in that: the radial angle of 3 chutes on the endoporus sidewall of 3 groups of sliding pins of described moving contact end and spring radial angle and top electrode is identical.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110100854.3A CN102231488B (en) | 2011-04-21 | 2011-04-21 | High-voltage gas insulated termination mounting and positioning structure |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110100854.3A CN102231488B (en) | 2011-04-21 | 2011-04-21 | High-voltage gas insulated termination mounting and positioning structure |
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| Publication Number | Publication Date |
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| CN102231488A CN102231488A (en) | 2011-11-02 |
| CN102231488B true CN102231488B (en) | 2014-02-19 |
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| CN201110100854.3A Active CN102231488B (en) | 2011-04-21 | 2011-04-21 | High-voltage gas insulated termination mounting and positioning structure |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102377154A (en) * | 2011-11-14 | 2012-03-14 | 申环电缆科技有限公司 | Dry type pluggable geographic information system (GIS) terminal |
| WO2013104412A1 (en) * | 2012-01-09 | 2013-07-18 | Alstom Technology Ltd | Plug and socket pure gas insulated wall bushing for hvdc and uhv |
| CN103050930A (en) * | 2012-12-21 | 2013-04-17 | 江苏普朗克电力科技有限公司 | GIS (Gas Insulated Switchgear) terminal contact |
| CN104440756B (en) * | 2014-12-09 | 2017-02-01 | 国家电网公司 | Lifting mounting device |
| CN110176745A (en) * | 2019-07-04 | 2019-08-27 | 中车青岛四方车辆研究所有限公司 | A kind of pulling/inserting structure for EMU hv cable termination |
| CN113572125A (en) * | 2021-04-08 | 2021-10-29 | 杭州富通电工有限公司 | GIS terminal mounting and positioning device and GIS terminal |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101707343A (en) * | 2009-10-30 | 2010-05-12 | 上海波汇通信科技有限公司 | GIS terminal and method for leading optical fibers in high-voltage electric power cable to exterior of terminal |
| CN202050172U (en) * | 2011-04-21 | 2011-11-23 | 上海三原电缆附件有限公司 | Mounting and positioning structure of high pressure gas immersed termination |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP3903296B2 (en) * | 2000-02-21 | 2007-04-11 | 清水建設株式会社 | Climbing cubicle |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101707343A (en) * | 2009-10-30 | 2010-05-12 | 上海波汇通信科技有限公司 | GIS terminal and method for leading optical fibers in high-voltage electric power cable to exterior of terminal |
| CN202050172U (en) * | 2011-04-21 | 2011-11-23 | 上海三原电缆附件有限公司 | Mounting and positioning structure of high pressure gas immersed termination |
Non-Patent Citations (1)
| Title |
|---|
| JP特开2001-238311A 2001.08.31 |
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| CN102231488A (en) | 2011-11-02 |
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