CN204066975U - A kind of distribution transformer lead link structure - Google Patents
A kind of distribution transformer lead link structure Download PDFInfo
- Publication number
- CN204066975U CN204066975U CN201420486807.6U CN201420486807U CN204066975U CN 204066975 U CN204066975 U CN 204066975U CN 201420486807 U CN201420486807 U CN 201420486807U CN 204066975 U CN204066975 U CN 204066975U
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- China
- Prior art keywords
- voltage
- lead
- transformer
- tap
- coil
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- Expired - Fee Related
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Abstract
Distribution transformer lead link structure of the present utility model, iron core, low-voltage coil and high-tension coil are installed in transformer-cabinet, low-voltage coil is enclosed within iron core, and high-voltage line snare is outside low-voltage coil, and high-tension coil is provided with the first head lead-in wire of high pressure and high-voltage tap outlet; It is characterized in that: transformer box cover connects bushing and shunting switch, bushing connects the first head lead-in wire of high pressure, high-voltage tap outlet connects the tap lead of shunting switch, high-voltage tap outlet undertaken colding pressing being connected by thin copper pipe with the tap lead that shunting switch gets off, junction of colding pressing directly puts insulating paper cylinder and carries out insulation processing.The utility model adds the safe application performance of transformer, and technique is simple, easy to operate, reduces the amount of labour of workman, improves production efficiency.There is not welding and leave over wedge angle burr, greatly reduce partial discharge, stopped bead and splashed and burn out winding insulation problem, improve the performance of transformer.
Description
Technical field
The utility model belongs to field transformer, relates to a kind of distribution transformer lead link structure.
Background technology
Present stage, it is that welding needs manual polishing wedge angle burr later, then wraps up with crimped paper, twines one deck again after having wrapped up with tape, prevent crimped paper from unclamping with the welding of phosphor-copper welding rod that distribution transforming transformer lead connects.This conventional method complex process, workman's amount of labour is comparatively large, and production efficiency is low, and in welding process, bead easily splashes on winding, burn out the dielectric strength that winding insulation reduces winding, to such an extent as to local field strength increases, reduces the safe application performance of transformer.After welding, lead-in wire place leaves wedge angle burr, and partial discharge quantity is large.
Summary of the invention
The utility model, in order to make up the deficiencies in the prior art, provides the distribution transformer lead link structure that a kind of technique is simple, reduce partial discharge quantity, improve transformer performance.
The utility model is achieved by the following technical solution:
Distribution transformer lead link structure of the present utility model, iron core, low-voltage coil and high-tension coil are installed in transformer-cabinet, there is iron yoke at the upper and lower two ends of iron core, low-voltage coil is enclosed within iron core, high-voltage line snare is outside low-voltage coil, and high-tension coil is provided with the first head lead-in wire of high pressure and high-voltage tap outlet; It is characterized in that: transformer box cover connects bushing and straight change-over switch, bushing connects the first head lead-in wire of high pressure, high-voltage tap outlet connects the tap lead of straight change-over switch, high-voltage tap outlet undertaken colding pressing being connected by thin copper pipe with the tap lead that straight change-over switch gets off, junction of colding pressing directly puts insulating paper cylinder and carries out insulation processing; Straight change-over switch is provided with three-phase terminal, and every phase terminal establishes five terminals, for five different gears, each terminal is arranged a tap lead, a high-voltage tap outlet of this phase on the corresponding high-tension coil of every bar tap lead.
The beneficial effects of the utility model are, 1. do not need to weld at transformer lead place, and polishing, adds the safe application performance of transformer, and technique is simple, easy to operate, reduces the amount of labour of workman, improves production efficiency.2. there is not welding and leave over wedge angle burr, greatly reduce partial discharge, stopped bead and splashed and burn out winding insulation problem, improve the performance of transformer.
Accompanying drawing explanation
Lower Fig. 1 is traditional structure schematic diagram, and lower Fig. 2 is the utility model schematic diagram.Fig. 3 is straight change-over switch schematic diagram.
In figure: 1 high-tension coil, 2 high-voltage tap outlets, 3 thin copper pipes, 4 tap leads, 5 straight change-over switchs, 6 phosphor-copper welding rods, 7 iron yokes, the first head lead-in wire of 8 high pressure, 9 transformer box covers, 10 bushings, 11 insulating paper cylinders, 12, dish-type shunting switch, 13 terminals.
Embodiment
Accompanying drawing is a kind of specific embodiment of the present utility model.
Distribution transformer lead link structure of the present utility model, iron core, low-voltage coil and high-tension coil 1 is installed in transformer-cabinet, there is iron yoke 7 at the upper and lower two ends of iron core, low-voltage coil is enclosed within iron core, high-voltage line snare is outside low-voltage coil, and high-tension coil is provided with the first head lead-in wire 8 of high pressure and high-voltage tap outlet 2; Transformer box cover 9 connects bushing 10 and straight change-over switch 5, bushing connects the first head lead-in wire of high pressure, high-voltage tap outlet 2 connects the tap lead 4 of straight change-over switch, high-voltage tap outlet undertaken colding pressing being connected by thin copper pipe 3 with the tap lead that straight change-over switch gets off, junction of colding pressing directly puts insulating paper cylinder and carries out insulation processing; Straight change-over switch is provided with three-phase terminal, and every phase terminal establishes five terminals, for five different gears, each terminal is arranged a tap lead, a high-voltage tap outlet of this phase on the corresponding high-tension coil of every bar tap lead.
In the utility model, utilizing cold weld to clamp winding outlet and the tap lead that switch gets off by thin copper pipe, carrying out colds pressing is connected, without the need to welding, polishing, insulation processing is directly carried out with insulating paper cylinder in junction, because this reducing the partial discharge of transformer, more convenient to operate.
Claims (1)
1. a distribution transformer lead link structure, be provided with iron core, low-voltage coil and high-tension coil in transformer-cabinet, there is iron yoke at the upper and lower two ends of iron core, and low-voltage coil is enclosed within iron core, high-voltage line snare is outside low-voltage coil, and high-tension coil is provided with the first head lead-in wire of high pressure and high-voltage tap outlet; It is characterized in that: transformer box cover connects bushing and straight change-over switch, bushing connects the first head lead-in wire of high pressure, high-voltage tap outlet connects the tap lead of straight change-over switch, high-voltage tap outlet undertaken colding pressing being connected by thin copper pipe with the tap lead that straight change-over switch gets off, junction of colding pressing directly puts insulating paper cylinder and carries out insulation processing; Straight change-over switch is provided with three-phase terminal, and every phase terminal establishes five terminals, for five different gears, each terminal is arranged a tap lead, a high-voltage tap outlet of this phase on the corresponding high-tension coil of every bar tap lead.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420486807.6U CN204066975U (en) | 2014-08-27 | 2014-08-27 | A kind of distribution transformer lead link structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420486807.6U CN204066975U (en) | 2014-08-27 | 2014-08-27 | A kind of distribution transformer lead link structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204066975U true CN204066975U (en) | 2014-12-31 |
Family
ID=52208432
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420486807.6U Expired - Fee Related CN204066975U (en) | 2014-08-27 | 2014-08-27 | A kind of distribution transformer lead link structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204066975U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105632719A (en) * | 2016-03-28 | 2016-06-01 | 佛山市中研非晶科技股份有限公司 | High-voltage lead assembly structure for amorphous alloy oil-immersed power distribution transformer and fabrication method of assembly structure |
| CN106098325A (en) * | 2016-08-11 | 2016-11-09 | 吴江变压器有限公司 | A kind of epoxy pouring type dry transformer high-tension coil pressure regulation attachment structure |
-
2014
- 2014-08-27 CN CN201420486807.6U patent/CN204066975U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105632719A (en) * | 2016-03-28 | 2016-06-01 | 佛山市中研非晶科技股份有限公司 | High-voltage lead assembly structure for amorphous alloy oil-immersed power distribution transformer and fabrication method of assembly structure |
| CN106098325A (en) * | 2016-08-11 | 2016-11-09 | 吴江变压器有限公司 | A kind of epoxy pouring type dry transformer high-tension coil pressure regulation attachment structure |
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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: 20141231 Termination date: 20180827 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |