CN202205560U - Connection structure of low-tension side of power transformer - Google Patents
Connection structure of low-tension side of power transformer Download PDFInfo
- Publication number
- CN202205560U CN202205560U CN2011203248316U CN201120324831U CN202205560U CN 202205560 U CN202205560 U CN 202205560U CN 2011203248316 U CN2011203248316 U CN 2011203248316U CN 201120324831 U CN201120324831 U CN 201120324831U CN 202205560 U CN202205560 U CN 202205560U
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- low
- connection structure
- power transformer
- lug plate
- copper pipe
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Abstract
The utility model discloses a connection structure of a low-tension side of a power transformer. The connection structure comprises an outgoing end of a low-tension coil and a lug plate connected with a low-tension sleeve, wherein the outgoing end and the lug plate are connected with a leading-out line; and the connection structure is characterized in that: the leading-out line is a hollow copper tube. In the utility model, as the hollow copper tube replaces the original copper bar of the leading-out line, the hollow copper tube has large carrying capacity, low skin effect and low power loss, and the electric performance is improved; and moreover, the surface of the copper tube is smooth without sharp angle or burr, and the local discharge capacity is remarkably reduced, thereby being favorable for prolonging the service life of the transformer.
Description
Technical field
The utility model relates to the power transformer technology, especially relates to a kind of syndeton of power transformer low-pressure side.
Background technology
Be connected with lead-out wire between the lug plate that the syndeton of existing power step down side generally includes the low-voltage coil terminal, is connected with low-tension bushing, terminal and lug plate, lead-out wire adopts copper bar.Because the current ratio that the secondary side of power transformer passes through is bigger; Exist many because of the junction bolt looseness; The copper busbar radiating effect is poor, electric current arcing, the heating accident that factor such as constant load causes that exceed the quata, thus cause the transformer fault operation; Heat generating spot high temperature causes that transformer oil decomposes generation gas gas alarming, causing the tripping operation outage when serious.Therefore the syndeton of power transformer low-pressure side is improved and be very important.
The utility model content
In order to solve the deficiency of above-mentioned prior art; The purpose of the utility model provides a kind of syndeton of power transformer low-pressure side; It has that ampacity is big, power loss is little and advantage such as good electric property, to improve the reliability of transformer, prolongs the useful life of transformer.
The technical scheme that technical problem adopted that the utility model solves is: a kind of syndeton of power transformer low-pressure side; Comprise low-voltage coil terminal, the lug plate that is connected with low-tension bushing; Be connected with lead-out wire between terminal and lug plate, it is characterized in that lead-out wire is hollow copper pipe.According to the kelvin effect principle, hollow copper pipe ampacity is big, power loss is little, and in addition, copper pipe surface is smooth, no wedge angle, no burr, and partial discharge quantity reduces greatly, favourable prolongation transformer useful life.
During practical implementation, above-mentioned copper pipe welds with terminal, lug plate respectively.
During practical implementation, when above-mentioned copper pipe is drawn, fix, rock to avoid lead-in wire with wood clamp spare.
The beneficial effect of the utility model is: the lead-out wire of the utility model replaces original copper bar with hollow copper pipe; Hollow copper pipe ampacity is big, and kelvin effect is low, power loss is little, and its electric property improves; Copper pipe surface is smooth; No wedge angle, no burr, partial discharge quantity reduces greatly, favourable prolongation transformer useful life.
Description of drawings
Below in conjunction with accompanying drawing and embodiment utility model is further specified.
Fig. 1 is the structural representation of the utility model embodiment.
Among the figure: 1, coil 2, terminal 3, copper pipe 4, wood clamp spare 5, lug plate 6, low-tension bushing.
Embodiment
As shown in Figure 1, a kind of syndeton of power transformer low-pressure side, power transformer is a threephase oil immersed transformer; Comprise three coils 1; The low-voltage coil terminal 2 of coil 1, and 5 of lug plates with 3 welding of hollow copper pipe, the upper end of lug plate 5 is fixed on the low-tension bushing 6 with copper nut, when copper pipe 3 is drawn; Fixing with wood clamp spare 4, rock to avoid lead-in wire.
The lead-out wire of the utility model replaces original copper bar with hollow copper pipe 3, and hollow copper pipe 3 ampacitys are big, power loss is little, in addition, copper pipe 3 smooth surfaces, no wedge angle, no burr, partial discharge quantity reduces greatly, helps prolonging transformer useful life.
Claims (3)
1. the syndeton of a power transformer low-pressure side comprises low-voltage coil terminal, the lug plate that is connected with low-tension bushing, is connected with lead-out wire between terminal and lug plate, it is characterized in that lead-out wire is hollow copper pipe.
2. the syndeton of a kind of power transformer low-pressure side according to claim 1 is characterized in that above-mentioned copper pipe welds with terminal, lug plate respectively.
3. the syndeton of a kind of power transformer low-pressure side according to claim 1 and 2 when it is characterized in that above-mentioned copper pipe is drawn, is fixed with wood clamp spare.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203248316U CN202205560U (en) | 2011-09-01 | 2011-09-01 | Connection structure of low-tension side of power transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203248316U CN202205560U (en) | 2011-09-01 | 2011-09-01 | Connection structure of low-tension side of power transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202205560U true CN202205560U (en) | 2012-04-25 |
Family
ID=45969666
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203248316U Expired - Lifetime CN202205560U (en) | 2011-09-01 | 2011-09-01 | Connection structure of low-tension side of power transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202205560U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112992499A (en) * | 2021-03-22 | 2021-06-18 | 保定天威保变电气股份有限公司 | Three-phase integrated autotransformer low-voltage copper pipe lead structure and method |
-
2011
- 2011-09-01 CN CN2011203248316U patent/CN202205560U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112992499A (en) * | 2021-03-22 | 2021-06-18 | 保定天威保变电气股份有限公司 | Three-phase integrated autotransformer low-voltage copper pipe lead structure and method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP03 | Change of name, title or address |
Address after: Jiangshan City, Zhejiang city in Quzhou Province, the 324100 park open source road No. 1 Patentee after: KERUN ELECTRIC POWER TECHNOLOGY CO., LTD. Address before: 324123, 27, North Road, Jiangdong District, Jiangshan Economic Development Zone, Zhejiang, Quzhou Patentee before: Zhejiang Kerun Power Equipment Co., Ltd. |
|
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 324100 Jiangshan City, Quzhou, Zhejiang province Kaiyuan Road 1 Patentee after: Co - run intelligent control Limited by Share Ltd Address before: 324100 Jiangshan City, Quzhou, Zhejiang province Kaiyuan Road 1 Patentee before: KERUN ELECTRIC POWER TECHNOLOGY CO., LTD. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120425 |