CN114204289B - Capacitive bushing end screen grounding device - Google Patents
Capacitive bushing end screen grounding device Download PDFInfo
- Publication number
- CN114204289B CN114204289B CN202111383864.2A CN202111383864A CN114204289B CN 114204289 B CN114204289 B CN 114204289B CN 202111383864 A CN202111383864 A CN 202111383864A CN 114204289 B CN114204289 B CN 114204289B
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- China
- Prior art keywords
- insulating
- grounding
- connecting rod
- end screen
- 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.)
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Links
- 238000007789 sealing Methods 0.000 claims abstract description 21
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 claims abstract description 15
- 238000009413 insulation Methods 0.000 claims description 20
- 125000006850 spacer group Chemical group 0.000 claims description 4
- 230000000694 effects Effects 0.000 claims description 3
- 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 claims description 2
- 238000010276 construction Methods 0.000 abstract description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 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
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 adopted is as follows: the device comprises a terminal screen base, a grounding cap, a terminal screen insulating sleeve and a terminal screen lead wire, wherein the grounding cap is in threaded connection with the terminal screen base, a cavity is formed between the grounding cap and the terminal screen base, the terminal screen insulating sleeve is arranged in an inner hole of the terminal screen base, and one end of the terminal screen lead wire penetrates through the terminal screen insulating sleeve and extends into the cavity; the upper part of the end screen lead is provided with an inverted concave binding post, the upper end of the binding post is connected with a connecting rod, the connecting rod penetrates through the upper end face of the grounding cap, the circumference of the connecting rod is provided with an insulating assembly, and a plurality of sealing bearings are sequentially embedded in the insulating assembly from top to bottom; the terminal circumference both sides symmetry is provided with the insulating block, and the earth cap inner wall is provided with horizontal protrusion, and horizontal protrusion and insulating block one-to-one and conflict set up.
Description
Technical Field
The invention belongs to the technical field of power construction equipment, and particularly relates to a capacitive bushing end screen grounding device.
Background
Many electric power equipment in the electric power system are capacitive equipment, such as equipment of high-voltage bushing, porcelain bushing type current transformer, and these capacitive equipment all are equipped with the end screen, require end screen ground connection operation in normal operating, when carrying out high-voltage test, need open end screen ground connection, introduce test instrument and carry out the test with it, but current capacitive bushing end screen earthing device mainly has two kinds: the grounding end shield cap is fixed on the flange by bolts to be grounded, and the grounding end shield cap is required to be disconnected or unscrewed when in use, and then the grounding state is switched, so that the operation is time-consuming and labor-consuming, inconvenient, screw thread damage is easy to cause due to repeated disassembly, and bad grounding accidents of the end shield are caused; the other is that the grounding post is arranged inside the grounding cap, the end screen lead wire is connected with the grounding cap through the grounding post, the upper end of the end screen lead wire is abutted against the grounding post, the end screen lead wire is stressed for a long time, and the binding post is subjected to tangential stress during rotation, so that the end screen lead wire is easily affected by the grounding post to cause stress damage, and the service life of the grounding device is reduced.
Disclosure of Invention
The invention overcomes the defects existing in the prior art and provides the capacitive bushing end screen grounding device.
In order to solve the technical problems, the invention adopts the following technical scheme: the 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 in threaded connection with the end screen base, 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 one end of the end screen lead wire penetrates through the end screen insulating sleeve and extends into the cavity;
The upper part of the end screen lead is provided with an inverted concave binding post, the upper end of the binding post is connected with a connecting rod, the connecting rod penetrates through the upper end face of the grounding cap, the circumference of the connecting rod is provided with an insulating assembly, and a plurality of sealing bearings are sequentially embedded in the insulating assembly from top to bottom;
The wiring terminal circumference both sides symmetry is provided with the insulating piece, the earthing cap inner wall is provided with horizontal protrusion, horizontal protrusion and insulating piece one-to-one and conflict setting.
The insulation assembly comprises an insulation bushing and an insulation disc, wherein the insulation disc is arranged on the upper end face of the insulation bushing, and the upper end face of the insulation 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 twist grip, twist grip is used for controlling the rotation of connecting rod and terminal.
The side of the horizontal bulge, which is abutted against the insulating block, is provided with a grounding spring plate.
A spring ring is arranged in the groove of the binding post, and the outer surface of the end screen lead wire is in contact with the spring ring.
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 electrification between the grounding post and the grounding cap.
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 binding post, the connecting rod and the insulating disc are integrally arranged.
Compared with the prior art, the invention has the following beneficial effects:
1. The invention adopts the structure that the insulating disc is arranged in the grounding cap, the wiring post and the connecting rod which are integrally arranged with the insulating disc rotate in the grounding cap through the rotating handle, and the grounding post is supported, so that the position of the grounding post in the vertical direction is fixed.
2. The sealing bearing is sleeved on the connecting rod, so that when the handle is rotated, the connecting rod and the grounding column are not blocked in the rotating process, 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 and is made of wear-resistant insulating materials, and is embedded in the grounding cap, so that the inside of the grounding cap is well sealed.
3. According to the invention, the grounding post is arranged in the grounding cap, the end screen lead wire is connected with the grounding cap through the grounding post, two insulating blocks are symmetrically arranged on two sides of the outer wall of the grounding post, and when the grounding device is used, the grounding state can be switched by rotating the grounding post by 90 degrees along the axis, so that the grounding device is not required to be disassembled and is convenient to operate, and the condition that the capacitive sleeve end screen grounding device is damaged due to multiple disassembly is avoided.
Drawings
The invention is further described below with reference to the accompanying drawings.
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is an enlarged schematic view of FIG. 1A in accordance with the present invention;
FIG. 3 is a schematic illustration of A-A of FIG. 1 in accordance with the present invention.
In the figure: 1 is a terminal screen base, 2 is a grounding cap, 3 is a cavity, 4 is a terminal screen insulating sleeve, 5 is a terminal screen lead, 6 is a binding post, 7 is a connecting rod, 8 is a sealing bearing, 9 is an insulating block, 10 is a horizontal bulge, 11 is an insulating bush, 12 is an insulating disc, 13 is a rotating handle, 14 is a grounding elastic sheet, 15 is a spring ring, 16 is an insulating sealing ring, 17 is an annular insulating gasket, and 18 is an insulating sealing ring.
Detailed Description
As shown in fig. 1-3, embodiment one: the capacitive sleeve 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 extends into the cavity 3;
An inverted concave binding post 6 is arranged above the end screen lead 5, the upper end of the binding post 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;
The insulation blocks 9 are symmetrically arranged on two sides of the circumference of the binding post 6, horizontal protrusions 10 are arranged on the inner wall of the grounding cap 2, and the horizontal protrusions 10 are in one-to-one correspondence with the insulation blocks 9 and are in abutting arrangement.
Preferably, the insulation assembly comprises an insulation bushing 11 and an insulation disc 12, wherein 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 arranged in the insulating bush 11 and sleeved on the connecting rod 7.
Preferably, the upper part of the connecting rod 7 is in a disc-shaped structure so as to ensure the combination 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 spring piece 14.
Preferably, a spring ring 15 is arranged in the groove of the binding post 6, and the outer surface of the end screen lead 5 is 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, an annular insulating spacer 17 is provided on the upper end surface of the terminal 6, and the annular insulating spacer 17 is used for preventing current from being supplied between the terminal 6 and the grounding cap 2.
Preferably, an insulating sealing ring 18 is arranged between the grounding cap 2 and the lower end surface of the insulating disk 12.
Preferably, the binding post 6, the connecting rod 7 and the insulating disc 12 are integrally arranged.
Preferably, the binding post 6 and the connecting rod 7 are made of metal.
Embodiment two:
As shown in fig. 1, an insulating sealing ring 16 is arranged between the grounding cap 2 and the end screen base 1, and 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 that the sealing and waterproof effects are achieved, and the grounding cap 2 and the end screen base 1 are prevented from being rusted after water inflow, and the insulating performance of the end screen lead 5 is affected.
The rotating handle 36 is arranged at the upper end of the connecting rod 7, so that the connecting rod 7 and the binding post 6 can be conveniently rotated to switch between the grounded state and the ungrounded state, and the operability and the safety of the device are improved, (the connecting rod 7 and the binding post 6 are integrally arranged).
In a normal running 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 the grounding state is maintained;
During 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 are in a non-grounding state.
The above embodiments are merely illustrative of the principles of the present invention and its effects, and are not intended to limit the invention. Modifications and improvements to the above-described embodiments may be made by those skilled in the art without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications and changes which have been accomplished by those skilled in the art without departing from the spirit and technical spirit of the present invention should be covered by the appended claims.
Claims (6)
1. The 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 wire (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 one end of the end screen lead wire (5) penetrates through the end screen insulating sleeve (4) and extends into the cavity (3);
The novel power supply device is characterized in that an inverted concave binding post (6) is arranged above the end screen lead (5), the upper end of the binding post (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;
Insulating blocks (9) are symmetrically arranged on two sides of the circumference of the binding post (6), horizontal protrusions (10) are arranged on the inner wall of the grounding cap (2), and the horizontal protrusions (10) are in one-to-one correspondence with the insulating blocks (9) and are in abutting arrangement;
The insulation assembly comprises an insulation bushing (11) and an insulation disc (12), wherein 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);
The sealing bearing (8) is arranged in the insulating bushing (11) and sleeved on the connecting rod (7); the upper portion of connecting rod (7) is discoid structure, makes the atress effect of insulating disc (12) better bearing ground connection post, makes last screen lead wire (5) no longer bear the perpendicular orientation of ground connection post's force, the upper end of connecting rod (7) sets up twist grip (13), twist grip (13) are used for controlling the rotation of connecting rod (7) and terminal (6).
2. A capacitive bushing tap grounding device according to claim 1, characterized in that the side of the horizontal projection (10) abutting against the insulating block (9) is provided with a grounding spring (14).
3. A capacitive bushing end shield grounding device according to claim 1, characterized in that a spring ring (15) is arranged in a groove of the binding post (6), and the outer surface of the end shield lead (5) is arranged in contact with the spring ring (15).
4. A capacitive bushing end shield grounding device according to claim 1, characterized in that an insulating sealing ring (16) is arranged between the grounding cap (2) and the end shield base (1).
5. A capacitive bushing tap grounding device according to claim 1, characterized in that the upper end face of the terminal (6) is provided with an annular insulating spacer (17), the annular insulating spacer (17) being arranged to prevent electrical conduction between the terminal (6) and the grounding cap (2).
6. A capacitive bushing tap 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 CN114204289A (en) | 2022-03-18 |
| CN114204289B true 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) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
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 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN114204289A (en) | 2022-03-18 |
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