CN114204289A - Capacitive bushing end screen grounding device - Google Patents
Capacitive bushing end screen grounding device Download PDFInfo
- Publication number
- CN114204289A CN114204289A CN202111383864.2A CN202111383864A CN114204289A CN 114204289 A CN114204289 A CN 114204289A CN 202111383864 A CN202111383864 A CN 202111383864A CN 114204289 A CN114204289 A CN 114204289A
- Authority
- CN
- China
- Prior art keywords
- end screen
- grounding
- insulating
- connecting rod
- cap
- 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.)
- Granted
Links
- 238000007789 sealing Methods 0.000 claims abstract description 20
- 230000002146 bilateral effect Effects 0.000 claims abstract description 4
- 238000009413 insulation Methods 0.000 claims description 12
- 238000010276 construction Methods 0.000 abstract description 2
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 description 3
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- ZZUFCTLCJUWOSV-UHFFFAOYSA-N furosemide Chemical group C1=C(Cl)C(S(=O)(=O)N)=CC(C(O)=O)=C1NCC1=CC=CO1 ZZUFCTLCJUWOSV-UHFFFAOYSA-N 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 229910052573 porcelain Inorganic materials 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 238000004078 waterproofing Methods 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
- H01R4/58—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation characterised by the form or material of the contacting members
- H01R4/66—Connections with the terrestrial mass, e.g. earth plate, earth pin
Landscapes
- Insulators (AREA)
Abstract
The invention belongs to the technical field of electric power construction equipment, and particularly relates to a capacitive bushing end screen grounding device; the technical scheme is as follows: the end screen lead penetrates through the end screen insulating sleeve, and one end of the end screen lead extends into the cavity; an inverted concave wiring terminal is arranged above the end screen lead, the upper end of the wiring terminal is connected with a connecting rod, the connecting rod penetrates through the upper end face of the grounding cap, an insulating assembly is arranged in the circumferential direction of the connecting rod, and a plurality of sealing bearings are sequentially embedded in the insulating assembly from top to bottom; terminal circumference bilateral symmetry is provided with the collets, and ground connection cap inner wall is provided with horizontal arch, and horizontal arch and collets one-to-one just contradict the setting.
Description
Technical Field
The invention belongs to the technical field of electric power construction equipment, and particularly relates to a capacitive bushing end screen grounding device.
Background
Many power equipment in the power system are capacitive equipment, such as high-voltage bushing, porcelain bushing formula current transformer etc. and these capacitive equipment all are equipped with the end screen, require end screen ground connection operation when normal work, when carrying out high-voltage test, need open end screen ground connection, introduce it into test instrument and test, but, present capacitive bushing end screen earthing device mainly has two kinds: one is fixed on a flange by bolts for grounding, and the grounding end screen cap needs to be disconnected or unscrewed when in use, and then the grounding state is switched, so that the time and labor are wasted, the operation is inconvenient, and the thread damage is easily caused by repeated disassembly, so that the adverse accident of grounding of the end screen is caused; the other type is that the grounding column is arranged in the grounding cap, the end screen lead is connected with the grounding cap through the grounding column, the upper end of the end screen lead is abutted against the grounding column, the end screen lead is stressed for a long time, and the wiring column is stressed tangentially when rotating, so that the end screen lead is easily influenced by the grounding column to be stressed and damaged, and the service life of the grounding device is shortened.
Disclosure of Invention
The invention overcomes the defects in the prior art and provides a capacitive bushing end screen grounding device.
In order to solve the technical problems, the invention adopts the technical scheme that: a capacitive bushing end screen grounding device comprises an end screen base, a grounding cap, an end screen insulating sleeve and an end screen lead wire, wherein the grounding cap is connected to the end screen base in a threaded mode, a cavity is formed between the grounding cap and the end screen base, the end screen insulating sleeve is arranged in an inner hole of the end screen base, and the end screen lead wire penetrates through the end screen insulating sleeve and one end of the end screen lead wire extends into the cavity;
an inverted concave wiring terminal is arranged above the end screen lead, the upper end of the wiring terminal is connected with a connecting rod, the connecting rod penetrates through the upper end face of the grounding cap, an insulating assembly is arranged in the circumferential direction of the connecting rod, and a plurality of sealing bearings are sequentially embedded in the insulating assembly from top to bottom;
terminal circumference bilateral symmetry is provided with the collets, ground connection cap inner wall is provided with horizontal arch, horizontal arch and collets one-to-one and conflict the setting.
The insulating assembly comprises an insulating bush and an insulating disc, the insulating disc is arranged on the upper end face of the insulating bush, and the upper end face of the insulating disc is flush with the upper end face of the grounding cap.
The sealing bearing is arranged in the insulating bush and sleeved on the connecting rod.
The upper portion of connecting rod is discoid structure, the upper end of connecting rod sets up the twist grip, the twist grip is used for controlling the rotation of connecting rod and terminal.
And a grounding elastic sheet is arranged on the abutting side of the horizontal protrusion and the insulating block.
And a spring ring is arranged in the groove of the binding post, and the outer surface of the end screen lead is in contact with the spring ring.
And an insulating sealing ring is arranged between the grounding cap and the end screen base.
The upper end face of the binding post is provided with an annular insulating gasket, and the annular insulating gasket is used for preventing the grounding post and the grounding cap from being electrified.
And an insulating sealing ring is arranged between the grounding cap and the lower end face of the insulating disc.
The connecting rod and the binding post are made of metal materials.
The wiring terminal, the connecting rod and the insulating disc are integrally arranged.
Compared with the prior art, the invention has the beneficial effects that:
1. the invention adopts the technical scheme that the insulating disc is arranged in the grounding cap, the binding post and the connecting rod which are integrally arranged with the insulating disc rotate in the grounding cap by rotating the handle, and the grounding post is supported to be fixed in the vertical direction of the grounding post.
2. The connecting rod is sleeved with the sealing bearing, so that the connecting rod and the grounding column are not jammed in the rotating process when the handle is rotated, and meanwhile, the insulating sealing ring is arranged between the grounding cap and the lower end face of the insulating disc, is a horizontal annular sealing ring, is made of wear-resistant insulating materials and is embedded in the grounding cap, and the good sealing of the inside of the grounding cap is ensured.
3. According to the invention, the grounding column is arranged in the grounding cap, the end screen lead is connected with the grounding cap through the grounding column, the two insulating blocks are symmetrically arranged on the two sides of the outer wall of the grounding column, when the capacitive bushing grounding device is used, the grounding state can be switched by rotating the grounding column 90 degrees along the axis, the capacitive bushing grounding device is not required to be disassembled and is convenient to operate, and the phenomenon that the end screen grounding device of the capacitive bushing is damaged easily due to repeated disassembly is avoided.
Drawings
The invention is further described below with reference to the accompanying drawings.
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is an enlarged view of FIG. 1A of the present invention;
FIG. 3 is a schematic view of A-A of FIG. 1 according to the present invention.
In the figure: the device comprises a base 1, a grounding cap 2, a cavity 3, a tail screen insulating sleeve 4, a tail screen lead 5, a binding post 6, a connecting rod 7, a sealing bearing 8, an insulating block 9, a horizontal bulge 10, an insulating bush 11, an insulating disc 12, a rotating handle 13, a grounding elastic sheet 14, a spring ring 15, an insulating sealing ring 16, an annular insulating gasket 17 and an insulating sealing ring 18.
Detailed Description
As shown in fig. 1 to 3, in the first embodiment: a capacitive bushing end screen grounding device comprises an end screen base 1, a grounding cap 2, an end screen insulating sleeve 4 and an end screen lead 5, wherein the grounding cap 2 is connected to the end screen base 1 in a threaded mode, a cavity 3 is formed between the grounding cap 2 and the end screen base 1, the end screen insulating sleeve 4 is arranged in an inner hole of the end screen base 1, and the end screen lead 5 penetrates through the end screen insulating sleeve 4 and one end of the end screen lead 5 extends into the cavity 3;
an inverted concave wiring terminal 6 is arranged above the end screen lead 5, the upper end of the wiring terminal 6 is connected with a connecting rod 7, the connecting rod 7 penetrates through the upper end face of the grounding cap 2, an insulating assembly is arranged in the circumferential direction of the connecting rod 7, and a plurality of sealing bearings 8 are sequentially embedded in the insulating assembly from top to bottom;
6 circumference bilateral symmetry of terminal is provided with insulating block 9, 2 inner walls of ground connection cap are provided with horizontal protrusion 10, horizontal protrusion 10 and insulating block 9 one-to-one and conflict the setting.
Preferably, the insulation assembly comprises an insulation bushing 11 and an insulation disc 12, the insulation disc 12 is arranged on the upper end face of the insulation bushing 11, and the upper end face of the insulation disc 12 is flush with the upper end face of the grounding cap 2.
Preferably, the sealing bearing 8 is disposed in the insulating bush 11 and sleeved on the connecting rod 7.
Preferably, the upper portion of the connecting rod 7 is a disc-shaped structure to ensure the connection with the insulating disc 12, and a rotating handle 13 is arranged at the upper end of the connecting rod 7, and the rotating handle 13 is used for controlling the rotation of the connecting rod 7 and the binding post 6.
Preferably, the contact side of the horizontal protrusion 10 and the insulating block 9 is provided with a grounding elastic sheet 14.
Preferably, a spring ring 15 is arranged in the groove of the terminal 6, and the outer surface of the end screen lead 5 is arranged in contact with the spring ring 15.
Preferably, an insulating sealing ring 16 is arranged between the grounding cap 2 and the end screen base 1.
Preferably, the upper end face of the terminal post 6 is provided with an annular insulating gasket 17, and the annular insulating gasket 17 is used for preventing the terminal post 6 and the grounding cap 2 from being electrified.
Preferably, an insulating sealing ring 18 is arranged between the grounding cap 2 and the lower end face of the insulating disk 12.
Preferably, the terminal 6, the connecting rod 7 and the insulating disk 12 are integrally arranged.
Preferably, the post 6 and the connecting rod 7 are made of metal.
Example two:
as shown in fig. 1, an insulating seal ring 16 is arranged between the grounding cap 2 and the end screen base 1, is placed on the end screen base 1, and is fixed between the grounding cap 2 and the end screen base 1 when the grounding cap 2 is screwed, so as to play a role of sealing and water proofing, and prevent the grounding cap 2 and the end screen base 1 from being corroded in screw threads and affecting the insulating property of the end screen lead 5 after water enters.
Set up the twist grip 36 in connecting rod 7 upper end to make things convenient for rotatory connecting rod 7 and terminal 6, carry out the conversion between ground connection and the ungrounded state, improve the operability and the security of device, (connecting rod 7 and terminal 6 formula as an organic whole set up).
In a normal operation state, the two horizontal protrusions 10 are in contact with the outer wall of the binding post 6, which is not provided with the insulating block 9, through the grounding elastic sheet 14, so that a grounding state is maintained;
in a high-voltage test, the binding post 6 is rotated by 90 degrees, so that the two horizontal protrusions 10 of the grounding cap are in contact with the insulating block 9 of the binding post 6 through the grounding elastic sheet 14, and the non-grounding state is realized.
The above embodiments are merely illustrative of the principles of the present invention and its effects, and do not limit the present invention. It will be apparent to those skilled in the art that modifications and improvements can be made to the above-described embodiments without departing from the spirit and scope of the invention. Accordingly, it is intended that all equivalent modifications or changes be made by those skilled in the art without departing from the spirit and technical spirit of the present invention, and be covered by the claims of the present invention.
Claims (9)
1. A capacitive bushing end screen grounding device is characterized by comprising an end screen base (1), a grounding cap (2), an end screen insulating sleeve (4) and an end screen lead (5), wherein the grounding cap (2) is in threaded connection with the end screen base (1), a cavity (3) is formed between the grounding cap (2) and the end screen base (1), the end screen insulating sleeve (4) is arranged in an inner hole of the end screen base (1), the end screen lead (5) penetrates through the end screen insulating sleeve (4), and one end of the end screen lead extends into the cavity (3);
an inverted concave wiring terminal (6) is arranged above the end screen lead (5), the upper end of the wiring terminal (6) is connected with a connecting rod (7), the connecting rod (7) penetrates through the upper end face of the grounding cap (2), an insulating assembly is arranged in the circumferential direction of the connecting rod (7), and a plurality of sealing bearings (8) are sequentially embedded in the insulating assembly from top to bottom;
terminal (6) circumference bilateral symmetry is provided with insulating block (9), ground connection cap (2) inner wall is provided with horizontal arch (10), horizontal arch (10) and insulating block (9) one-to-one and conflict the setting.
2. A condenser bushing end screen grounding device according to claim 1, characterized in that the insulation assembly comprises an insulation bushing (11) and an insulation disc (12), the insulation disc (12) is arranged on the upper end face of the insulation bushing (11), and the upper end face of the insulation disc (12) is flush with the upper end face of the grounding cap (2).
3. A condenser bushing end screen grounding arrangement according to claim 2, characterized in that said sealed bearing (8) is arranged in an insulating bush (11) and sleeved on said connecting rod (7).
4. A condenser bushing end screen grounding device according to any one of claims 1-3, characterized in that the upper portion of the connecting rod (7) is a disk-shaped structure, and the upper end of the connecting rod (7) is provided with a turning handle (13), and the turning handle (13) is used for controlling the rotation of the connecting rod (7) and the terminal post (6).
5. A condenser bushing end screen grounding device according to claim 1, characterized in that the contact side of the horizontal protrusion (10) and the insulating block (9) is provided with a grounding elastic sheet (14).
6. A condenser bushing end screen grounding device according to claim 1, characterized in that a spring ring (15) is arranged in the groove of the terminal post (6), and the outer surface of the end screen lead (5) is arranged in contact with the spring ring (15).
7. A condenser bushing end screen grounding device according to claim 1, characterized in that an insulating sealing ring (16) is arranged between the grounding cap (2) and the end screen base (1).
8. A condenser bushing end screen grounding device according to claim 1, characterized in that the upper end face of the terminal stud (6) is provided with an annular insulating gasket (17), and the annular insulating gasket (17) is used for preventing the current from being conducted between the terminal stud (6) and the grounding cap (2).
9. A condenser bushing end screen grounding device according to claim 1, characterized in that an insulating sealing ring (18) is arranged between the grounding cap (2) and the lower end face of the insulating disc (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111383864.2A CN114204289B (en) | 2021-11-19 | 2021-11-19 | Capacitive bushing end screen grounding device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111383864.2A CN114204289B (en) | 2021-11-19 | 2021-11-19 | Capacitive bushing end screen grounding device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114204289A true CN114204289A (en) | 2022-03-18 |
| CN114204289B CN114204289B (en) | 2024-04-26 |
Family
ID=80648296
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111383864.2A Active CN114204289B (en) | 2021-11-19 | 2021-11-19 | Capacitive bushing end screen grounding device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114204289B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117612810A (en) * | 2024-01-22 | 2024-02-27 | 搏世因（北京）高压电气有限公司 | Umbrella skirt climbing structure of capacitive sleeve and flange mounting method |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202353011U (en) * | 2011-12-08 | 2012-07-25 | 辽宁省电力有限公司沈阳超高压分公司 | End shield grounding device for high-voltage capacitive equipment |
| CN202443837U (en) * | 2012-02-08 | 2012-09-19 | 广西电网公司南宁供电局 | Leading-out device for bushing end shield of transformer |
| CN202661488U (en) * | 2012-05-22 | 2013-01-09 | 山东电力集团公司济南供电公司 | Special end screen leading out structure for online monitoring |
| CN203850447U (en) * | 2014-05-29 | 2014-09-24 | 国网山西省电力公司电力科学研究院 | Condenser bushing end shield grounding device |
| CN204614584U (en) * | 2015-05-15 | 2015-09-02 | 深圳供电局有限公司 | A kind of end shield earthing device for oily formula sleeve pipe |
| CN104965128A (en) * | 2015-06-29 | 2015-10-07 | 国网天津市电力公司 | Multifunctional auxiliary test tool for bushing tap grounding device |
| CN204925278U (en) * | 2015-08-21 | 2015-12-30 | 华北电力大学 | Multi -functional transformer bushing on -line monitoring sensor |
| CN205049600U (en) * | 2015-07-23 | 2016-02-24 | 广东电网有限责任公司珠海供电局 | Transformer bushing end screen wiring auxiliary device and transformer bushing end screen connection structure |
| CN105469934A (en) * | 2015-12-24 | 2016-04-06 | 江苏神马电力股份有限公司 | Tap grounding apparatus and transformer bushing with same |
| CN207181463U (en) * | 2017-09-24 | 2018-04-03 | 许红燕 | A kind of bushing shell for transformer prerun wiring special auxiliary device |
| CN210775584U (en) * | 2019-08-08 | 2020-06-16 | 国网福建省电力有限公司 | Transformer end screen auxiliary test device |
-
2021
- 2021-11-19 CN CN202111383864.2A patent/CN114204289B/en active Active
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202353011U (en) * | 2011-12-08 | 2012-07-25 | 辽宁省电力有限公司沈阳超高压分公司 | End shield grounding device for high-voltage capacitive equipment |
| CN202443837U (en) * | 2012-02-08 | 2012-09-19 | 广西电网公司南宁供电局 | Leading-out device for bushing end shield of transformer |
| CN202661488U (en) * | 2012-05-22 | 2013-01-09 | 山东电力集团公司济南供电公司 | Special end screen leading out structure for online monitoring |
| CN203850447U (en) * | 2014-05-29 | 2014-09-24 | 国网山西省电力公司电力科学研究院 | Condenser bushing end shield grounding device |
| CN204614584U (en) * | 2015-05-15 | 2015-09-02 | 深圳供电局有限公司 | A kind of end shield earthing device for oily formula sleeve pipe |
| CN104965128A (en) * | 2015-06-29 | 2015-10-07 | 国网天津市电力公司 | Multifunctional auxiliary test tool for bushing tap grounding device |
| CN205049600U (en) * | 2015-07-23 | 2016-02-24 | 广东电网有限责任公司珠海供电局 | Transformer bushing end screen wiring auxiliary device and transformer bushing end screen connection structure |
| CN204925278U (en) * | 2015-08-21 | 2015-12-30 | 华北电力大学 | Multi -functional transformer bushing on -line monitoring sensor |
| CN105469934A (en) * | 2015-12-24 | 2016-04-06 | 江苏神马电力股份有限公司 | Tap grounding apparatus and transformer bushing with same |
| CN207181463U (en) * | 2017-09-24 | 2018-04-03 | 许红燕 | A kind of bushing shell for transformer prerun wiring special auxiliary device |
| CN210775584U (en) * | 2019-08-08 | 2020-06-16 | 国网福建省电力有限公司 | Transformer end screen auxiliary test device |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117612810A (en) * | 2024-01-22 | 2024-02-27 | 搏世因（北京）高压电气有限公司 | Umbrella skirt climbing structure of capacitive sleeve and flange mounting method |
| CN117612810B (en) * | 2024-01-22 | 2024-04-09 | 搏世因（北京）高压电气有限公司 | Umbrella skirt climbing structure of capacitive sleeve and flange mounting method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN114204289B (en) | 2024-04-26 |
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