CN202977760U - Transformer grounding connector - Google Patents
Transformer grounding connector Download PDFInfo
- Publication number
- CN202977760U CN202977760U CN 201220572760 CN201220572760U CN202977760U CN 202977760 U CN202977760 U CN 202977760U CN 201220572760 CN201220572760 CN 201220572760 CN 201220572760 U CN201220572760 U CN 201220572760U CN 202977760 U CN202977760 U CN 202977760U
- Authority
- CN
- China
- Prior art keywords
- hole
- connection block
- transformer grounding
- grounding connector
- transformer
- 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.)
- Expired - Fee Related
Links
- 239000004020 conductor Substances 0.000 claims description 15
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical group [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 4
- 229910052802 copper Inorganic materials 0.000 claims description 4
- 239000010949 copper Substances 0.000 claims description 4
- 230000007935 neutral effect Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 239000012141 concentrate Substances 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
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Abstract
The utility model discloses a transformer grounding connector which comprises a connecting seat. A fixation screw hole is arranged at the end part of the connecting seat. A fixation bolt is arranged in the fixation screw hole and fixes the connecting seat on the grounding end of a transformer. Passing holes through which grounding downleads pass are arranged on the upper surface of the connecting seat. Bolt holes which are connected with the passing holes are arranged on the side of the connecting seat. Locking bolts are arranged in the bolt holes and lock the grounding downleads in the passing holes. According to the utility model, grounding line connection is standardised; the resistance is reduced; the contact areas of the grounding downleads are increased; electrical accidents caused by poor contact are avoided; the operation level of a city power grid is improved; and the reliability of user power supply is improved.
Description
Technical field
The utility model relates to the power supply accessory, particularly a kind of transformer grounding connector.
Background technology
At present, the down conductors such as the neutral ground line of distribution transformer, high-voltage arrester earth connection, low voltage surge arrester earth connection, integrated box earthing of casing line concentrate on the transformer case earth terminal and connect, drawing of down conductor is comparatively random, multipoint earthing, and the down conductor contact area is little, loose contact easily causes the faults such as transformer neutral point skew, lightning arrester burst.
Summary of the invention
Problem to be solved in the utility model just is to provide a kind of transformer grounding connector, and the standard earth connection connects, and reduces resistance value, increases the contact area of each down conductor, avoids the electric accident that causes due to loose contact.
In order to achieve the above object, the utility model adopts following technical scheme: the transformer grounding connector, comprise Connection Block, the end of described Connection Block is provided with the retaining thread hole, being provided with set bolt in described retaining thread hole is fixed on Connection Block on the transformer grounding end, the upper surface of described Connection Block is provided with the mounting hole that installs down conductor, and the side of described Connection Block is provided with the bolt hole that is communicated with mounting hole, is provided with clamping screw in described bolt hole down conductor is fixed in mounting hole.
Further, the head of described set bolt arranges the first blind hole, and described the first blind hole is non-orthohexagonal polygonal hole.Antitheft.
Further, described the first blind hole is the equilateral triangle hole.
Further, described retaining thread hole is counterbore.
Further, described mounting hole is through hole.
Further, described mounting hole is provided with at least two, and the center line in the center line of described mounting hole and retaining thread hole at grade.
Further, described clamping screw is stud bolt, and an end of clamping screw is provided with the second blind hole, and described the second blind hole is non-orthohexagonal polygonal hole.Antitheft.
Further, described the second blind hole is the equilateral triangle blind hole.
Further, described Connection Block is copper Connection Block.Conduct electricity very well, resistance is low.
After adopting technique scheme, the utlity model has following advantage: adopt copper Connection Block, the standard earth connection connects, and reduces resistance value, increases the contact area of each down conductor, avoids the electric accident that causes due to loose contact; The employing anti-theft bolt is fixed, and prevents that connector is stolen, reduces the stolen probability of down conductor.
Description of drawings
The utility model is described in further detail below in conjunction with accompanying drawing:
Fig. 1 is the structural representation of a kind of embodiment of the utility model;
Fig. 2 is the schematic diagram of the first blind hole;
Fig. 3 is the schematic diagram of clamping screw.
Embodiment
Be a kind of embodiment of the utility model as shown in Figures 1 to 3, the transformer grounding connector, comprise Connection Block 1, the end of described Connection Block is provided with retaining thread hole 11, being provided with set bolt 2 in described retaining thread hole is fixed on Connection Block on the transformer grounding end, the upper surface of described Connection Block is provided with the mounting hole 12 that installs down conductor, and the side of described Connection Block is provided with the bolt hole 13 that is communicated with mounting hole, is provided with clamping screw 3 in described bolt hole down conductor is fixed in mounting hole.Here, the head of described set bolt arranges the first blind hole 21, and described the first blind hole is non-orthohexagonal polygonal hole.Preferred described the first blind hole is the equilateral triangle hole.Described retaining thread hole is counterbore, compact conformation.Described mounting hole is through hole, is convenient to install down conductor.Described mounting hole is provided with at least two, and the center line in the center line of described mounting hole and retaining thread hole at grade.Described clamping screw is stud bolt, and an end of described clamping screw is provided with the second blind hole 31, and described the second blind hole is non-orthohexagonal polygonal hole.Preferred described the second blind hole is the equilateral triangle blind hole.In the present embodiment, mounting hole is provided with four, is respectively used to install neutral ground line, high-voltage arrester earth connection, low voltage surge arrester earth connection and the integrated box earthing of casing line of distribution transformer.
Connection Block of the present utility model adopts copper Connection Block, and the standard earth connection connects, and reduces resistance value, increases the contact area of each down conductor, avoids the electric accident that causes due to loose contact, improves the operation of urban distribution network level, improves the customer power supply reliability; Set bolt and clamping screw all adopt theft-prevention structure, prevent that connector is stolen, reduce the stolen probability of down conductor.
Except above preferred embodiment, the utility model also has other execution mode, those skilled in the art can make various changes and distortion according to the utility model, only otherwise break away from spirit of the present utility model, all should belong to the defined scope of the utility model claims.
Claims (9)
1. transformer grounding connector, it is characterized in that: comprise Connection Block (1), the end of described Connection Block is provided with retaining thread hole (11), being provided with set bolt (2) in described retaining thread hole is fixed on Connection Block on the transformer grounding end, the upper surface of described Connection Block is provided with the mounting hole (12) that installs down conductor, the side of described Connection Block is provided with the bolt hole (13) that is communicated with mounting hole, is provided with clamping screw (3) in described bolt hole down conductor is fixed in mounting hole.
2. transformer grounding connector according to claim 1, it is characterized in that: the head of described set bolt arranges the first blind hole (21), and described the first blind hole is non-orthohexagonal polygonal hole.
3. transformer grounding connector according to claim 2, it is characterized in that: described the first blind hole is the equilateral triangle hole.
4. transformer grounding connector according to claim 1 is characterized in that: described retaining thread hole is counterbore.
5. transformer grounding connector according to claim 1, it is characterized in that: described mounting hole is through hole.
6. transformer grounding connector according to claim 1 or 5, it is characterized in that: described mounting hole is provided with at least two, and the center line in the center line of described mounting hole and retaining thread hole is at grade.
7. transformer grounding connector according to claim 1, it is characterized in that: described clamping screw is stud bolt, and an end of described clamping screw is provided with the second blind hole (31), and described the second blind hole is non-orthohexagonal polygonal hole.
8. transformer grounding connector according to claim 7, it is characterized in that: described the second blind hole is the equilateral triangle blind hole.
9. transformer grounding connector according to claim 1, it is characterized in that: described Connection Block is copper Connection Block.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220572760 CN202977760U (en) | 2012-11-02 | 2012-11-02 | Transformer grounding connector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220572760 CN202977760U (en) | 2012-11-02 | 2012-11-02 | Transformer grounding connector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202977760U true CN202977760U (en) | 2013-06-05 |
Family
ID=48518794
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220572760 Expired - Fee Related CN202977760U (en) | 2012-11-02 | 2012-11-02 | Transformer grounding connector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202977760U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106654617A (en) * | 2016-10-27 | 2017-05-10 | 国家电网公司 | Portable short-circuit ground wire and installation method thereof |
-
2012
- 2012-11-02 CN CN 201220572760 patent/CN202977760U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106654617A (en) * | 2016-10-27 | 2017-05-10 | 国家电网公司 | Portable short-circuit ground wire and installation method thereof |
| CN106654617B (en) * | 2016-10-27 | 2019-06-07 | 国家电网公司 | Portable short-circuit grounding wire and its installation method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130605 Termination date: 20201102 |