CN207282278U - Condenser bushing end shield earthing or grounding means - Google Patents
Condenser bushing end shield earthing or grounding means Download PDFInfo
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- CN207282278U CN207282278U CN201721020081.7U CN201721020081U CN207282278U CN 207282278 U CN207282278 U CN 207282278U CN 201721020081 U CN201721020081 U CN 201721020081U CN 207282278 U CN207282278 U CN 207282278U
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- end shield
- metal cap
- grounded metal
- hole
- earthing
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Abstract
The utility model discloses a kind of condenser bushing end shield earthing or grounding means,It is related to end shield grounding technology field,Insecure technical problem is grounded for there is technology end shield,Using offering limit hole in end shield stem on the basis of existing technology,Grounded metal cap offers through hole corresponding with limit hole,Fastener is equipped with limit hole and through hole,End shield stem solves the problems, such as by way of copper conductor is connected with grounded metal cap,The utility model ensures the close contact between grounded metal cap and ground connection flange using the elastic force of spring,The position of grounded metal cap is fixed on end shield stem at the same time and is connected using copper conductor,So that it is broken in spring,Defect,During deformation,Remain and crimped with the close of ground connection flange,Spring and fastener cooperate,Dual fail-safe causes end shield reliable ground,Since its is ingenious in design,It is simple in structure,Securely and reliably,It can guarantee that casing safety stable operation,Reducing rate of breakdown has extensive market prospects.
Description
Technical field
End shield grounding technology field is the utility model is related to, more particularly to a kind of condenser bushing end shield earthing or grounding means.
Background technology
The built-in ground connection extensive use in end shield earthing or grounding means of bottom shielding of bushing.The built-in ground connection of bottom shielding of bushing is from small porcelain
The lead-out wire of built-in end shield ground connection is pierced by set, by the extraction of stem, stem is being drawn the state for keeping insulating
There is the grounded metal for carrying a spring assembly cap outside terminal.In normal course of operation, grounded metal cap is subject to contained spring
A degree of pressure, understands the ground connection flange inside connecting sleeve, finally realizes that bottom shielding of bushing keeps the state of ground connection.To set
When pipe end shield is tested and checked, first deenergization is first had to, staff presses inward against grounded metal cap, makes itself and casing
Inner side ground connection flange completely disengages, and is then injected with metallic pin in the hole of stem, disconnects ground connection flange and stem
Connection, makes transformer end shield be in the state of hanging insulation against ground, and be no longer on ground state, then connecting test line with draw
Terminal, starts to test.
Built-in end shield earthing mode has the function of automatic earthing, can be largely avoided the carelessness of staff
Situations such as causing end shield not to be grounded, but if between stem and ground sleeve exist friction or spring force reduce when,
Grounded metal cap cannot eject completely under the action of the spring, and it is unreliable or even earth-free to ultimately cause end shield ground connection.
The content of the invention
The utility model provides a kind of condenser bushing end shield earthing or grounding means, can not to solve prior art end shield ground connection
The technical problem leaned on.
Realized to solve the above problems, the utility model adopts the following technical solution：
A kind of condenser bushing end shield earthing or grounding means, including head cover, grounded metal cap, ground connection flange, spring, end shield lead
Column, sealant rubber ring, fixed insulating stand, seal washer, ground connection base, the end shield stem offer limit hole, grounded metal
Cap offers through hole corresponding with the limit hole, and fastener is equipped with the limit hole and through hole；
The end shield stem is connected by copper conductor with the grounded metal cap.
Preferably, the fastener includes bolt, nut, spring shim, packing ring, and bolt is through through hole and limit hole and leads to
Cross nut, spring shim, packing ring grounded metal cap is fixed on end shield stem.
Preferably, the copper conductor both ends are connected with two screws respectively, and a screw is fixed on end shield stem
On, another screw is fixed on grounded metal cap.
Preferably, the copper conductor is the flat woven copper conductor of no shielded layer.
Further, the screw is made of the good metal material of electric conductivity.
Further, the good metal of the electric conductivity is copper product.
The utility model has the advantages that：
1st, the close contact between grounded metal cap and ground connection flange is ensured using the elastic force of spring, while will ground connection gold
The position for belonging to cap is fixed on end shield stem and is connected using copper conductor so that when fracture, defect, deformation occur for spring,
Remain and crimped with the close of ground connection flange, spring and fastener cooperate, and dual fail-safe causes end shield reliable ground.
2nd, it is ingenious in design, simple in structure, easy to manufacture, safe and reliable, earthing effect is good, can guarantee that casing safety stablize
Operation, reduce rate of breakdown.
Brief description of the drawings
Fig. 1 is embodiment schematic diagram provided by the utility model；
Fig. 2 is limit hole in embodiment provided by the utility model, through hole and fastener locations relation schematic diagram；
Fig. 3 is grounded metal cap and stem wire connection diagram in embodiment provided by the utility model；
In figure, 1：Head cover；2：Fastener；3：Grounded metal cap；4：It is grounded flange；5：Spring；6：End shield stem；7：It is close
Sealing rubber ring；8：Fixed insulating stand；9：Seal washer；10：It is grounded base；11：Screw；12：Copper conductor；21：Bolt；22：Spiral shell
It is female；23：Spring shim；24：Packing ring；31：Through hole；61：Limit hole.
Embodiment
To make the purpose of this utility model, technical solution and advantage clearer, implement below in conjunction with the utility model
Fig. 1-3 in example, the technical scheme in the utility model embodiment is clearly and completely described, it is clear that described reality
It is the utility model part of the embodiment to apply example, instead of all the embodiments.Usually it is described and illustrated herein in the accompanying drawings
The detailed description of the embodiment of the utility model is not intended to limit claimed the scope of the utility model, but only table
Show the selected embodiment of the utility model.Based on the embodiment in the utility model, those of ordinary skill in the art are not doing
Go out all other embodiments obtained under the premise of creative work, shall fall within the protection scope of the present invention.
Fig. 1 is embodiment schematic diagram provided by the utility model, and Fig. 2 is spacing in embodiment provided by the utility model
Hole, through hole and fastener locations relation schematic diagram, Fig. 3 are grounded metal cap and stem in embodiment provided by the utility model
Wire connection diagram, as shown in Figs. 1-3, a kind of condenser bushing end shield earthing or grounding means, head cover 1 is with being grounded 10 coaxial spiral shell of base
Line connects, and is sealed by sealant rubber ring 9, and fixed insulating stand 8 is fixedly mounted by seal washer 9 and ground connection base 10, is grounded bottom
10 tops of seat are equipped with ground connection flange 4, are grounded among flange and are provided with circular hole, and above technology is realized using the prior art, Ke Yizhi
It is connected on existing apparatus and is processed；
End shield stem 6 offers limit hole 61, and grounded metal cap 3 offers through hole 31 corresponding with limit hole 61, limit
Fastener 2 is equipped with position hole 61 and through hole 3, fastener 2 includes bolt 21, nut 22, spring shim 23, packing ring 24, bolt
Grounded metal cap 3 through through hole 31 and limit hole 61 and is fixed on end shield by nut 22, spring shim 23, packing ring 24 and draws by 21
On terminal 6；
End shield stem 6 is connected by copper conductor 12 with grounded metal cap 3, and copper conductor 12 is the flat volume of no shielded layer
Knit copper conductor.
For the ease of the dismounting of copper conductor, 12 both ends of copper conductor are connected with two screws 11 respectively, and a screw is consolidated
It is scheduled on end shield stem 6, another screw is fixed on grounded metal cap 3, and the length of copper conductor 12 meets grounded metal
Cap is free from limiting, and leaves certain nargin.
Now condenser bushing end shield earthing or grounding means application method provided by the utility model is described below：（1）Normal work
Make under state, end shield ground connection, through hole 31 and fastener 2 are installed, and grounded metal cap 3 is in close contact with ground connection flange 4,5 He of spring
Fastener 2 cooperates, and dual fail-safe causes end shield reliable ground.（2）When end shield needs to disconnect, pressing grounded metal cap 3, makes it
Ground connection flange completely disengages, then with the through hole of bolt insertion stem, you can the connection of ground connection flange and stem is disconnected,
Transformer end shield is set to be in the state of hanging insulation against ground.
Claims (6)
1. a kind of condenser bushing end shield earthing or grounding means, including head cover（1）, grounded metal cap（3）, ground connection flange（4）, spring
（5）, end shield stem（6）, sealant rubber ring（7）, fixed insulating stand（8）, seal washer（9）, ground connection base（10）, its feature exists
In the end shield stem（6）Offer limit hole（61）, grounded metal cap（3）Offer and the limit hole（61）It is corresponding
Through hole（31）, the limit hole（61）And through hole（31）Inside it is equipped with fastener（2）；
The end shield stem（6）Pass through copper conductor（12）With the grounded metal cap（3）Connection.
2. earthing or grounding means according to claim 1, it is characterised in that the fastener（2）Including bolt（21）, nut
（22）, spring shim（23）, packing ring（24）, bolt（21）Through through hole（31）And limit hole（61）And pass through nut（22）, bullet
Spring gasket（23）, packing ring（24）By grounded metal cap（3）It is fixed on end shield stem（6）On.
3. earthing or grounding means according to claim 1, it is characterised in that
The copper conductor（12）Both ends respectively with two screws（11）Connection, a screw are fixed on end shield stem（6）
On, another screw is fixed on grounded metal cap（3）On.
4. earthing or grounding means according to claim 1, it is characterised in that
The copper conductor（12）For the flat woven copper conductor of no shielded layer.
5. earthing or grounding means according to claim 3, it is characterised in that
The screw（11）It is made of the good metal material of electric conductivity.
6. earthing or grounding means according to claim 5, it is characterised in that
The good metal of the electric conductivity is copper product.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721020081.7U CN207282278U (en) | 2017-08-15 | 2017-08-15 | Condenser bushing end shield earthing or grounding means |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721020081.7U CN207282278U (en) | 2017-08-15 | 2017-08-15 | Condenser bushing end shield earthing or grounding means |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207282278U true CN207282278U (en) | 2018-04-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721020081.7U Active CN207282278U (en) | 2017-08-15 | 2017-08-15 | Condenser bushing end shield earthing or grounding means |
Country Status (1)
| Country | Link |
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| CN (1) | CN207282278U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110398660A (en) * | 2019-08-01 | 2019-11-01 | 中国大唐集团科学技术研究院有限公司西北电力试验研究院 | A kind of end shield of high-voltage bushing earthing detection and on-Line Monitor Device |
| CN111599584A (en) * | 2020-07-20 | 2020-08-28 | 广东电网有限责任公司东莞供电局 | High-voltage bushing end screen device |
| CN113917199A (en) * | 2021-10-22 | 2022-01-11 | 广东电网有限责任公司 | Safe and quick connecting device |
| WO2023029128A1 (en) * | 2021-09-06 | 2023-03-09 | 中国南方电网有限责任公司超高压输电公司贵阳局 | Tap terminal having dual-point grounding |
-
2017
- 2017-08-15 CN CN201721020081.7U patent/CN207282278U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110398660A (en) * | 2019-08-01 | 2019-11-01 | 中国大唐集团科学技术研究院有限公司西北电力试验研究院 | A kind of end shield of high-voltage bushing earthing detection and on-Line Monitor Device |
| CN111599584A (en) * | 2020-07-20 | 2020-08-28 | 广东电网有限责任公司东莞供电局 | High-voltage bushing end screen device |
| WO2023029128A1 (en) * | 2021-09-06 | 2023-03-09 | 中国南方电网有限责任公司超高压输电公司贵阳局 | Tap terminal having dual-point grounding |
| CN113917199A (en) * | 2021-10-22 | 2022-01-11 | 广东电网有限责任公司 | Safe and quick connecting device |
| CN113917199B (en) * | 2021-10-22 | 2024-02-13 | 广东电网有限责任公司 | Safe and quick connecting device |
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