CN204989402U - Whole prefabricated formula ac voltage withstand test test device in cable GIS terminal - Google Patents
Whole prefabricated formula ac voltage withstand test test device in cable GIS terminal Download PDFInfo
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- CN204989402U CN204989402U CN201520584309.XU CN201520584309U CN204989402U CN 204989402 U CN204989402 U CN 204989402U CN 201520584309 U CN201520584309 U CN 201520584309U CN 204989402 U CN204989402 U CN 204989402U
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- gis terminal
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- test device
- insulating cylinder
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- 238000012360 testing method Methods 0.000 title claims abstract description 49
- 238000007789 sealing Methods 0.000 claims abstract description 12
- 238000005266 casting Methods 0.000 claims abstract description 6
- 239000003292 glue Substances 0.000 claims abstract description 6
- 230000008878 coupling Effects 0.000 claims abstract description 4
- 238000010168 coupling process Methods 0.000 claims abstract description 4
- 238000005859 coupling reaction Methods 0.000 claims abstract description 4
- 238000009413 insulation Methods 0.000 claims description 17
- 239000011810 insulating material Substances 0.000 claims description 5
- 239000007769 metal material Substances 0.000 claims description 5
- 238000009434 installation Methods 0.000 abstract description 13
- 238000000034 method Methods 0.000 abstract description 3
- 238000005516 engineering process Methods 0.000 abstract description 2
- 230000007423 decrease Effects 0.000 description 7
- 239000002184 metal Substances 0.000 description 3
- 230000007704 transition Effects 0.000 description 3
- 238000007493 shaping process Methods 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000004132 cross linking Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
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Abstract
The utility model relates to an ac voltage withstand test test device, specific whole prefabricated formula ac voltage withstand test test device in cable GIS terminal that says so belongs to the ac voltage withstand test testing technique field. It includes flange, insulating barrel, insulating lid and the pole of being qualified for the next round of competitions, and the flange front end is inboard through the insulating barrel of glue rigid coupling, and insulating lid is connected to insulating barrel front end, and insulating lid center is equipped with the pole of being qualified for the next round of competitions, flange rear end face and is equipped with the screw hole, and threaded hole can connecting bolt, becomes an organic whole with the flange with GIS terminal connection through the bolt. The utility model has the advantages of simple and compact structure, rationally, satisfy requirement electric, mechanical properties, have dependable performance, design nargin characteristics such as reasonable, insulating barrel, insulating lid and the pole of being qualified for the next round of competitions have reduced the installation steps between parts through casting technology integrated into one piece, have reduced the bearing seal between parts, have practiced thrift installation time, can improve the sealing reliability of device again.
Description
Technical field
The utility model relates to a kind of alternating-current voltage resistance test device, and a kind of cable GIS terminal Integral prefabricated type alternating-current voltage resistance test device, belongs to AC voltage withstand test technical field specifically.
Background technology
Current cable passage resource intensivism becomes trend, i.e. the application of cable GIS terminal equipment one of main trend becoming cable termination.Land resource has been saved in the popularization and application of this cable line greatly, but thing followed problem is part electric substation GIS cable air chamber is directly connected to that pressure becomes, lightning arrester (without plug-in strip separation) or cable two ends make conventional test methods cannot meet total head withstand voltage test requirement into GIS sealed terminal end.According to incomplete statistics, 2002-2013 add up national developed regions after by withstand voltage test in 24 hours reached compared with the case that equipment failure occurred in the short period 20 multinomial, therefore can say that full-scale test is the most direct, effective detection means, there is irreplaceable effect.
For the problem cannot carrying out full-scale test above, now domesticly have developed a kind of cable GIS terminal completion test device, the high-pressure cross-linking cable between the switchyard that can be GIS terminal for two ends and the verifying attachment of corresponding accessory.The successful exploitation of this kind of test unit, has solved the problem cannot carrying out total head withstand voltage test in part transformer station, has improve the power supply reliability of GIS terminal cable.But because this kind of test unit volume is comparatively large, heavier-weight, and need certain safe operation space just can carry out completion test.Therefore this kind of device is only applicable to conventional transformer station, and for the switchyard that operating space is little, in some 110kV gas-insulated switch station domestic, operating space is less than 1 meter, and even less, existing test unit cannot meet the demands.
Summary of the invention
The purpose of this utility model is to overcome above-mentioned weak point, thus a kind of cable GIS terminal Integral prefabricated type alternating-current voltage resistance test device is provided, its simple and compact for structure, lightweight, on-the-spot strong adaptability, simple to operate, the GIS terminal cable line that can meet in site operative space is little, safe distance is not enough switchyard carries out the request for utilization of AC voltage withstand test.
According to the technical scheme that the utility model provides, cable GIS terminal Integral prefabricated type alternating-current voltage resistance test device comprises flange, insulating cylinder body, insulation lid and outlet rod, it is characterized in that: flange leading inside is by the affixed insulating cylinder body of glue, insulating cylinder body front end connects insulation lid, and insulation lid center is provided with outlet rod; Flange rear end face is provided with threaded hole, can coupling bolt in threaded hole, flange and GIS terminal is linked into an integrated entity by bolt; Flange side is provided with vacuum port; Outlet rod rear end connects outlet rod connecting link, and outlet rod connecting link rear end can the GIS terminal of connecting test; Be provided with grounded shield electrode inside insulating cylinder body, grounded shield electrode is fixed on flange.
Further, insulating cylinder body and insulation lid adopt insulating material to make.
Further, be provided with annular seal space inside flange rear end face, in annular seal space, be provided with O-ring seal, the sealing of flange rear end face can be realized by O-ring seal.
Further, flange adopts metal material to make, and flange and grounded shield electrode are connected to form earth terminal.
Further, insulating cylinder body, insulation lid and outlet rod are one-body molded by casting process.
Compared with the prior art the utility model has the following advantages:
The utility model structure is simple, compact, reasonable, and the utility model meets electrically, the requirement of mechanical property, has the features such as dependable performance, design margin be reasonable; Insulating cylinder body of the present utility model, insulation lid and outlet rod are one-body molded by casting process, decrease the installation steps between parts, decrease the shaft seal between parts, saved the set-up time, can improve again the sealing reliability of device; Flange adopts metal material to make, and is fixed together by glue with insulating cylinder body, reduces transition structure.Grounded shield electrode is arranged on metal flange, has both met the validity of test, can reduce installation steps again; Insulating cylinder body adopts insulating material to make, and excellent electrical properties, general assembly (TW) are light, installation and transportation are convenient, and this shaping sealing property that prevents is more reliable; The gas filled in process of the test is SF6, pressure is 0.1 ~ 0.2Mpa, lower than minimum pressure during existing test unit test, the design of the test unit of low pressure avoids because improving the increase of cost and the increase of insulating sleeve wall thickness that integral sealing brings, reduce the weight of test unit, make installation more convenient.
Accompanying drawing explanation
Fig. 1 is the utility model front view.
Description of reference numerals: 1-flange, 2-insulating cylinder body, 3-grounded shield electrode, 4-insulate lid, 5-outlet rod, 6-outlet rod connecting link, 7-vacuum port, 8-threaded hole, 9-O-ring seal, 10-bolt, 11-GIS terminal.
Embodiment
Embodiment in is by reference to the accompanying drawings further described by the utility model below:
As shown in Figure 1, the utility model mainly comprises flange 1, insulating cylinder body 2, insulation lid 4 and outlet rod 5, and flange 1 leading inside, by the affixed insulating cylinder body 2 of glue, decreases transition structure.Insulating cylinder body 2 front end connects insulation lid 4, and insulation lid 4 center is provided with outlet rod 5.Insulating cylinder body 2 and insulation lid 4 adopt insulating material to make, and excellent electrical properties, general assembly (TW) are light, installation and transportation are convenient, and sealing property is more reliable.
Flange 1 rear end face is provided with threaded hole 8, can coupling bolt 10 in threaded hole 8, flange 1 and GIS terminal 11 is linked into an integrated entity by bolt 10.Be provided with annular seal space inside flange 1 rear end face, in annular seal space, be provided with O-ring seal 9, the sealing of flange 1 rear end face can be realized by O-ring seal 9.
Flange 1 side is provided with vacuum port 7, the cavity vacuum state that insulating cylinder body 2 and GIS terminal 11 can be formed by vacuum port 7.
Outlet rod 5 rear end connects outlet rod connecting link 6, and outlet rod connecting link 6 rear end can the GIS terminal 11 of connecting test.
Be provided with grounded shield electrode 3 inside insulating cylinder body 2, grounded shield electrode 3 is fixed on flange 1.Described flange 1 adopts metal material to make, and flange 1 and grounded shield electrode 3 are connected to form earth terminal.
Described insulating cylinder body 2, insulation lid 4 and outlet rod 5 are one-body molded by casting process, decrease the installation steps between parts, decrease the shaft seal between parts, saved the set-up time, can improve again the sealing reliability of device.
It is outside that the utility model can be arranged on tested GIS terminal as high pressure introducing device, carries out AC voltage withstand test by applying voltage to the utility model to whole loop.In use, first outlet rod connecting link is connected in GIS terminal, then flange is bolted in tested GIS terminal.The utility model and tested GIS terminal, by the metal threaded formation seal chamber that is tightly connected, after installation is complete, will test cavity vacuum state by vacuum port, and in test cavity, inject the SF6 gas of certain pressure by vacuum port.Finally, apply trial voltage and carry out AC voltage withstand test.
The utility model meets electrically, the requirement of mechanical property, has the features such as dependable performance, design margin be reasonable.Insulating cylinder body of the present utility model, insulation lid and outlet rod are one-body molded by casting process, decrease the installation steps between parts, decrease the shaft seal between parts, saved the set-up time, can improve again the sealing reliability of device.Flange adopts metal material to make, and is fixed together by glue with insulating cylinder body, reduces transition structure.Grounded shield electrode is arranged on metal flange, has both met the validity of test, can reduce installation steps again.Insulating cylinder body adopts insulating material to make, and excellent electrical properties, general assembly (TW) are light, installation and transportation are convenient, and this shaping sealing property that prevents is more reliable.The gas filled in process of the test is SF6, pressure is 0.1 ~ 0.2Mpa, lower than minimum pressure during existing test unit test, the design of the test unit of low pressure avoids because improving the increase of cost and the increase of insulating sleeve wall thickness that integral sealing brings, reduce the weight of test unit, make installation more convenient.
Claims (5)
1. a cable GIS terminal Integral prefabricated type alternating-current voltage resistance test device, comprise flange (1), insulating cylinder body (2), insulation lid (4) and outlet rod (5), it is characterized in that: flange (1) leading inside is by the affixed insulating cylinder body of glue (2), insulating cylinder body (2) front end connects insulation lid (4), and insulation lid (4) center is provided with outlet rod (5); Flange (1) rear end face is provided with threaded hole (8), can coupling bolt (10) in threaded hole (8), flange (1) and GIS terminal (11) is linked into an integrated entity by bolt (10); Flange (1) side is provided with vacuum port (7); Outlet rod (5) rear end connects outlet rod connecting link (6), and outlet rod connecting link (6) rear end can the GIS terminal (11) of connecting test; Insulating cylinder body (2) inner side is provided with grounded shield electrode (3), and grounded shield electrode (3) is fixed on flange (1).
2. cable GIS terminal Integral prefabricated type alternating-current voltage resistance test device as claimed in claim 1, is characterized in that: described insulating cylinder body (2) and insulation lid (4) adopt insulating material to make.
3. cable GIS terminal Integral prefabricated type alternating-current voltage resistance test device as claimed in claim 1, it is characterized in that: inside described flange (1) rear end face, be provided with annular seal space, be provided with O-ring seal (9) in annular seal space, the sealing of flange (1) rear end face can be realized by O-ring seal (9).
4. cable GIS terminal Integral prefabricated type alternating-current voltage resistance test device as claimed in claim 1, is characterized in that: described flange (1) adopts metal material to make, and flange (1) and grounded shield electrode (3) are connected to form earth terminal.
5. cable GIS terminal Integral prefabricated type alternating-current voltage resistance test device as claimed in claim 1, is characterized in that: described insulating cylinder body (2), insulation lid (4) and outlet rod (5) are one-body molded by casting process.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520584309.XU CN204989402U (en) | 2015-08-05 | 2015-08-05 | Whole prefabricated formula ac voltage withstand test test device in cable GIS terminal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520584309.XU CN204989402U (en) | 2015-08-05 | 2015-08-05 | Whole prefabricated formula ac voltage withstand test test device in cable GIS terminal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204989402U true CN204989402U (en) | 2016-01-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520584309.XU Active CN204989402U (en) | 2015-08-05 | 2015-08-05 | Whole prefabricated formula ac voltage withstand test test device in cable GIS terminal |
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| CN (1) | CN204989402U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105067976A (en) * | 2015-08-05 | 2015-11-18 | 国家电网公司 | Cable GIS terminal integral prefabricated AC withstand voltage testing device |
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2015
- 2015-08-05 CN CN201520584309.XU patent/CN204989402U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105067976A (en) * | 2015-08-05 | 2015-11-18 | 国家电网公司 | Cable GIS terminal integral prefabricated AC withstand voltage testing device |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |