CN203950634U - A kind of transformer core grounding wire fixture with U type band iron - Google Patents
A kind of transformer core grounding wire fixture with U type band iron Download PDFInfo
- Publication number
- CN203950634U CN203950634U CN201420244952.3U CN201420244952U CN203950634U CN 203950634 U CN203950634 U CN 203950634U CN 201420244952 U CN201420244952 U CN 201420244952U CN 203950634 U CN203950634 U CN 203950634U
- Authority
- CN
- China
- Prior art keywords
- band iron
- transformer
- insulator
- shaped band
- post insulator
- 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
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- Housings And Mounting Of Transformers (AREA)
Abstract
The utility model discloses a kind of transformer core grounding wire fixture with U-shaped band iron, belong to electrical engineering technical field, solved the problem of traditional transformer iron core grounding wire fixture insulator easy fracture under the larger environment of the temperature difference.Mainly comprise transformer main change body, post insulator and conventional band iron, between described post insulator one end and conventional band iron, adopting loser form to be fixed is connected, the post insulator other end adopts U-shaped band iron to be connected with transformer body, between described post insulator and U-shaped band iron, all adopt loser form to be fixed between U-shaped band iron and transformer body to be connected.The utility model is simple in structure, easy to operate, and material is easily got, and improving cost is low, efficiently solves traditional ground lead fixed form there is the problem of insulator fracture.Though the utility model improvement is little, finally solved the insulator phenomenon of rupture causing due to variations in temperature, can be widely used in the area that the temperature difference is larger.
Description
Technical field
The utility model belongs to electrical engineering technical field, specifically, relates in particular to a kind of transformer core grounding wire fixture with U-shaped band iron.
Background technology
Transformer is the nucleus equipment of electrical network, and the reliability of the appurtenances of transformer is one of key factor affecting transformer safe and stable operation.Transformer core grounding is the important process ground connection of transformer, answers dead earthing when transformer normally moves.The general conventional band iron of 30mm that adopts, as master iron core down conductor, adopts support insulator to fix.Owing to not considering the problem of band iron thermal coefficient of expansion when the design and installation, tend to occur the situation of Rupture of Post Insulator.
The thermal linear expansion coefficient of iron is 12.2*10
-6/ k-m, the city down conductor collapsing length extreme maximum larger in the temperature difference can reach 7.32mm, and general its bending strength of post insulator is no more than 3knmm, expanding with heat and contract with cold due to metal when variations in temperature, the stress producing acts directly on the fixedly post insulator root of band iron, makes insulator fracture.
Summary of the invention
The utility model discloses a kind of transformer core grounding wire fixture with U-shaped band iron, for solving the problem of traditional transformer iron core grounding wire fixture insulator easy fracture under the larger environment of the temperature difference.
The utility model is achieved through the following technical solutions:
A kind of transformer core grounding wire fixture with U-shaped band iron, comprise transformer main change body, post insulator and conventional band iron, between described post insulator one end and conventional band iron, adopting loser form to be fixed is connected, the post insulator other end adopts U-shaped band iron to be connected with transformer body, between described post insulator and U-shaped band iron, all adopt loser form to be fixed between U-shaped band iron and transformer body to be connected.
Compared with prior art, the beneficial effects of the utility model are:
The utility model is simple in structure, easy to operate, and material is easily got, and improving cost is low, efficiently solves traditional ground lead fixed form there is the problem of insulator fracture.Though the utility model improvement is little, finally solved the insulator phenomenon of rupture causing due to variations in temperature, can be widely used in the area that the temperature difference is larger.
Accompanying drawing explanation
Fig. 1 is the utility model structural representation;
Fig. 2 is loser form structure schematic diagram.
In figure: 1. main transformer body; 2. post insulator; 3. band iron; 4.U type band iron.
Embodiment
Below in conjunction with accompanying drawing, the utility model is further illustrated:
A kind of transformer core grounding wire fixture with U-shaped band iron, comprise transformer main change body 1, post insulator 2 and conventional band iron 3, between described post insulator 2 one end and conventional band iron 3, adopting loser form to be fixed is connected, post insulator 2 other ends adopt U-shaped band iron 4 to be connected with transformer body 1, between described post insulator 2 and U-shaped band iron 4, all adopt loser form to be fixed between U-shaped band iron 4 and transformer body 1 to be connected.
A in Figure of description Fig. 1, B, C tri-places all represent that loser form connects.
Employing loser form one side of U-shaped band iron is fixed in transformer body 1, and opposite side is fixed on post insulator 2.Utilize U-shaped band iron self elasticity, when conventional band iron 3 and U-shaped band iron 4 temperature influences are flexible, in existing insulator bending strength permissible value, telescopic location can be at conventional band iron 3, post insulator 2 and U-shaped band iron 3 places, strengthen telescopic variation amount, can enough meet the linear deformation amount of extreme maximum 7.32mm.
In sum, it is only preferred embodiment of the present utility model, not be used for limiting the scope that the utility model is implemented, all equalizations of doing according to the shape described in the utility model claim scope, structure, feature and spirit change and modify, and all should be included within the scope of claim of the present utility model.
Claims (1)
1. the transformer core grounding wire fixture with U-shaped band iron, comprise transformer main change body (1), post insulator (2) and conventional band iron (3), it is characterized in that: between described post insulator (2) one end and conventional band iron (3), adopt loser form to be fixed and be connected, post insulator (2) other end adopts U-shaped band iron (4) to be connected with transformer body (1), between described post insulator (2) and U-shaped band iron (4), all adopt loser form to be fixed between U-shaped band iron (4) and transformer body (1) to be connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420244952.3U CN203950634U (en) | 2014-05-13 | 2014-05-13 | A kind of transformer core grounding wire fixture with U type band iron |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420244952.3U CN203950634U (en) | 2014-05-13 | 2014-05-13 | A kind of transformer core grounding wire fixture with U type band iron |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203950634U true CN203950634U (en) | 2014-11-19 |
Family
ID=51892656
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420244952.3U Expired - Fee Related CN203950634U (en) | 2014-05-13 | 2014-05-13 | A kind of transformer core grounding wire fixture with U type band iron |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203950634U (en) |
-
2014
- 2014-05-13 CN CN201420244952.3U patent/CN203950634U/en not_active Expired - Fee Related
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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 |
Granted publication date: 20141119 Termination date: 20190513 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |