CN204991981U - Reliable transformer high -tension bushing end screen earthing device - Google Patents
Reliable transformer high -tension bushing end screen earthing device Download PDFInfo
- Publication number
- CN204991981U CN204991981U CN201520545250.3U CN201520545250U CN204991981U CN 204991981 U CN204991981 U CN 204991981U CN 201520545250 U CN201520545250 U CN 201520545250U CN 204991981 U CN204991981 U CN 204991981U
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- CN
- China
- Prior art keywords
- stem
- base
- bushing end
- end screen
- earthing device
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 239000002184 metal Substances 0.000 abstract description 8
- 229910052751 metal Inorganic materials 0.000 abstract description 8
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 229910001220 stainless steel Inorganic materials 0.000 description 8
- 239000010935 stainless steel Substances 0.000 description 8
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 230000015556 catabolic process Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
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Abstract
The utility model discloses a transformer high -tension bushing end screen earthing device, it comprises base, the stem of connecting transformer bushing end screen ground lead and metal ground connection lid. Compared with the prior art: moreover, the steam generator is simple in structure, convenient for use and operation, easy manufacture, and it guarantees the last reliable ground of shielding with " the stem of connecting transformer bushing end screen ground lead by metal ground connection lid in drum bars arch jump ring centre gripping " and " the round tapered groove and the metal ground connection lid relative protruding in close contact with of radius frustum shape who sets up in cylindrical inner chamber top that connect end face centre on transformer bushing end screen ground lead's the stem " two measures when operation, high reliability, therefore its reasonable in design, a reliable transformer high -tension bushing end screen earthing device.
Description
Technical field
The utility model relates to a kind of power equipment earthing device, particularly a kind of transformer high-voltage bushing end shield earthing device reliably.
Background technology
Existing Transformer Bushing Tap earthing device by base, connection transformer bottom shielding of bushing ground lead stem, be sleeved on spring on stem and metallic ground overlap with bushing shell for transformer inside grounded metal flange form, the stem insulation against ground of connection transformer bottom shielding of bushing ground lead, be sleeved on the metallic ground cover on stem and stem close contact, and configure protecting cover.During operation, metallic ground cover is connected with grounded metal flange inside bushing shell for transformer by the support of contained spring, end shield reliable ground; First protecting cover is opened during test, then by the pressure of metallic ground cover, getting a metallic pin inserts in the horizontal aperture that stem is arranged, unclamp the metallic ground cover of pressure again, metallic ground only recoils to metallic pin position under being enclosed within the effect of spring, now metallic ground cover with bushing shell for transformer inside grounded metal flange depart from, end shield stem is earth-free, can test stem connecting test line.Such earthing device shortcoming is: inside support metal ground sleeve connection transformer sleeve pipe, the spring of grounded metal flange is often in pressured state, along with the prolongation of service time, spring performance degradation, when spring force reduces or metallic ground overlaps and have bite between stem, metallic ground cover can not be ejected completely by spring, can cause end shield can not reliable ground, bring huge potential risk hidden danger to the safe and stable operation of transformer.
Summary of the invention
Technical problem to be solved in the utility model overcomes above-mentioned the deficiencies in the prior art, and provide a kind of reasonable in design, structure device that is simple, transformer high-voltage bushing end shield reliable ground when using easy and simple to handle, easy manufacture and can ensure to run, i.e. the reliable transformer high-voltage bushing end shield earthing device of one.
The technical scheme in the invention for solving the technical problem is: this reliable transformer high-voltage bushing end shield earthing device, it is made up of the stem of base, connection transformer bottom shielding of bushing ground lead and metallic ground lid, described base has columniform cylinder chamber, and the upside mouth in this cylindrical tube chamber is shaped with internal thread; The stem of described connection transformer bottom shielding of bushing ground lead, the center of upper surface is shaped with cone-shaped groove, bottom by insulating element with shaft fixing device in the cylindrical tube chamber of base; Described metallic ground lid is post shapes, lower edge is shaped with engages with mouth internal thread on the upside of base cylindrical shape cylinder chamber the external screw thread installed, inside has the cylindrical cavity coaxial with base cylindrical shape cylinder chamber, this cylindrical cavity under shed, be made up of the circular cylindrical cavity of up big and down small two sections of different-diameters, in the large diameter cylinder type cavity of top, device has cylinder grid arch jump ring, and arranges the rounding taper type projection corresponding with stem upper surface center cone connected in star at the top of this metallic ground lid cylindrical cavity.Such earthing device, screws off metallic ground lid during test, can test stem connecting test line; After test, remove the p-wire of connecting lead wire post, then the stem cylinder grid arch jump ring in metallic ground lid being aimed at connection transformer bottom shielding of bushing ground lead is pressed, after determining that the cylinder grid arch jump ring in metallic ground lid clamps stem, screw metallic ground lid again, now the stem of connection transformer bottom shielding of bushing ground lead is not only clamped by the cylinder grid arch jump ring in metallic ground lid, the rounding taper type projection close contact that the cone-shaped groove at its center, upper surface is also oppositely arranged with metallic ground lid cylindrical cavity top.
This transformer high-voltage bushing end shield earthing device provided by the utility model is compared with prior art: structure is simple, use easy and simple to handle, easy manufacture, and when running it with " stem of connection transformer bottom shielding of bushing ground lead is clamped by the cylinder grid arch jump ring in metallic ground lid " and " the rounding taper type projection close contact that the cone-shaped groove at the center, stem upper surface of connection transformer bottom shielding of bushing ground lead and metallic ground lid cylindrical cavity top are oppositely arranged " two measure to ensure end shield reliable ground, reliability is higher, thus it is reasonable in design, it is a kind of transformer high-voltage bushing end shield earthing device reliably.
Accompanying drawing explanation
The structural representation of the transformer high-voltage bushing end shield earthing device that Fig. 1 provides for the utility model embodiment;
Mark in figure: 1, base, 2, stem, 3, sealing ring, 4, metallic ground lid, 5, the rounding taper type projection that arranges of metallic ground lid cylindrical cavity top, 6, cylinder grid arch jump ring, 7, insulating element.
Embodiment
Below in conjunction with embodiment, the utility model is described in further detail, but do not limit protection range of the present utility model.
With reference to accompanying drawing, this reliable transformer high-voltage bushing end shield earthing device that the utility model embodiment provides, it covers (metallic ground lid) 4 by the copper stem 2 of stainless steel base 1, connection transformer bottom shielding of bushing ground lead and stainless steel ground connection and rubber seal 3 is formed, described stainless steel base 1 has columniform cylinder chamber, and the upside mouth in this cylindrical tube chamber is shaped with internal thread; The copper stem 2 of described connection transformer bottom shielding of bushing ground lead, the center of upper surface is shaped with cone-shaped groove, bottom by insulating element 7 with shaft fixing device in the cylindrical tube chamber of stainless steel base 1; Described stainless steel ground connection lid 4 is in hexagonal prism shape, lower edge is shaped with engages with mouth internal thread on the upside of base cylindrical shape cylinder chamber the external screw thread installed, inside has the cylindrical cavity coaxial with base cylindrical shape cylinder chamber, this cylindrical cavity under shed, be made up of the circular cylindrical cavity of up big and down small two sections of different-diameters, in the large diameter cylinder type cavity of top, device has cylinder grid arch jump ring 6, and arranges the rounding taper type projection 5 corresponding with stem 2 upper surface center cone connected in star at the top of this stainless steel ground connection lid cylindrical cavity; And rubber seal 3 is set seals between stainless steel ground connection lid 4 and stainless steel base 1.
Claims (2)
1. a reliable transformer high-voltage bushing end shield earthing device, it is characterized in that: it is made up of the stem (2) of base (1), connection transformer bottom shielding of bushing ground lead and metallic ground lid (4), described base (1) has columniform cylinder chamber, and the upside mouth in this cylindrical tube chamber is shaped with internal thread; The stem (2) of described connection transformer bottom shielding of bushing ground lead, the center of upper surface is shaped with cone-shaped groove, bottom by insulating element (7) with shaft fixing device in the cylindrical tube chamber of base (1); Described metallic ground lid (4) is in post shapes, lower edge is shaped with engages with mouth internal thread on the upside of base cylindrical shape cylinder chamber the external screw thread installed, inside has the cylindrical cavity coaxial with base cylindrical shape cylinder chamber, this cylindrical cavity under shed, be made up of the circular cylindrical cavity of up big and down small two sections of different-diameters, in the large diameter cylinder type cavity of top, device has cylinder grid arch jump ring (6), and arranges the rounding taper type projection (5) corresponding with stem (2) upper surface center cone connected in star at the top of this metallic ground lid cylindrical cavity.
2. reliable transformer high-voltage bushing end shield earthing device according to claim 1, it is characterized in that: described metallic ground lid (4) in hexagonal prism shape, and arranges rubber seal (3) and seals between metallic ground lid (4) and base (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520545250.3U CN204991981U (en) | 2015-07-26 | 2015-07-26 | Reliable transformer high -tension bushing end screen earthing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520545250.3U CN204991981U (en) | 2015-07-26 | 2015-07-26 | Reliable transformer high -tension bushing end screen earthing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204991981U true CN204991981U (en) | 2016-01-20 |
Family
ID=55126312
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520545250.3U Active CN204991981U (en) | 2015-07-26 | 2015-07-26 | Reliable transformer high -tension bushing end screen earthing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204991981U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109149159A (en) * | 2018-09-04 | 2019-01-04 | 国网湖南省电力有限公司 | Overvoltage test Transformer Bushing Tap wiring protection device and its application method |
| CN109817432A (en) * | 2019-04-01 | 2019-05-28 | 江苏神马电力股份有限公司 | End shield connector and bushing shell for transformer |
| 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 |
| CN110426023A (en) * | 2019-07-20 | 2019-11-08 | 徐建国 | A kind of benchmark correction instrument for spraying operation equipment |
| CN112041945A (en) * | 2018-03-22 | 2020-12-04 | Abb电网瑞士股份公司 | Bushing with end shield assembly |
-
2015
- 2015-07-26 CN CN201520545250.3U patent/CN204991981U/en active Active
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112041945A (en) * | 2018-03-22 | 2020-12-04 | Abb电网瑞士股份公司 | Bushing with end shield assembly |
| US11270817B2 (en) | 2018-03-22 | 2022-03-08 | Hitachi Energy Switzerland Ag | Bushing with a tap assembly |
| CN109149159A (en) * | 2018-09-04 | 2019-01-04 | 国网湖南省电力有限公司 | Overvoltage test Transformer Bushing Tap wiring protection device and its application method |
| CN109149159B (en) * | 2018-09-04 | 2023-08-04 | 国网湖南省电力有限公司 | Transformer bushing end screen wiring protection device for overvoltage test and application method thereof |
| CN109817432A (en) * | 2019-04-01 | 2019-05-28 | 江苏神马电力股份有限公司 | End shield connector and bushing shell for transformer |
| CN110426023A (en) * | 2019-07-20 | 2019-11-08 | 徐建国 | A kind of benchmark correction instrument for spraying operation equipment |
| 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 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |