CN202134350U - Winding head structure of power transformer - Google Patents
Winding head structure of power transformer Download PDFInfo
- Publication number
- CN202134350U CN202134350U CN201120270866U CN201120270866U CN202134350U CN 202134350 U CN202134350 U CN 202134350U CN 201120270866 U CN201120270866 U CN 201120270866U CN 201120270866 U CN201120270866 U CN 201120270866U CN 202134350 U CN202134350 U CN 202134350U
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- CN
- China
- Prior art keywords
- winding head
- angle rings
- power transformer
- utility
- model
- 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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Abstract
The utility model relates to the field of a power transformer, in particular to a winding head structure of a power transformer, which comprises an insulating structure and an anti-static structure. The winding head structure comprises a high-voltage coil, a low-voltage coil and a coil end oil clearance. The utility model is characterized in that the winding head structure further comprises angle rings provided at the coil end oil clearance and the end of high-voltage coil, and an electrostatic ring provided at the end of the high-voltage coil, wherein the angle rings are L-shaped and are molding insulating angle rings, and the number of the angle rings is two or three. The utility model has the beneficial effects that the angle rings improve the strength of the coil end, wherein the molding insulating angle rings are more reliable, the effect is better with the adoption of two or three angle rings; the electrostatic ring can improve the winding head electric field and shock resistance capability.
Description
Technical field
The utility model relates to the power transformer field, relates in particular to a kind of Winding End of Power Transformer insulation system and electrostatic prevention structure.
Background technology
The oil-immersed type transformer Main Insulation Structure of Electric mainly adopts oil-barrier insulation pattern, and for the inhomogeneous field of winding overhang, simple oil-dividing plate pattern insulation effect is good inadequately; In addition, electrostatic electrification also makes transformer generation electrostatic damage easily.
The utility model content
The purpose of the utility model is to overcome the problems referred to above, and a kind of Winding End of Power Transformer structure that improves winding overhang dielectric strength, ability antistatic is provided.
For realizing above-mentioned purpose; The technical scheme that the utility model adopted is: the Winding End of Power Transformer structure; Comprise high-tension coil, low-voltage coil, end winding oil clearance, it is characterized in that: also comprise the square ring that is positioned at end winding oil clearance and high-tension coil end, the electrostatic ring that is positioned at the high-tension coil end; Wherein square ring is the L type, is the profiled insulation square ring, and square ring is 2 or 3.
The beneficial effect of the utility model: square ring has improved the dielectric strength of end winding, and wherein the profiled insulation square ring is more reliable, and it is better that 2 or 3 square ring effects are set; Electrostatic ring can improve the end electric field, and improves impact resistance.
Description of drawings
Fig. 1 is the structure chart of the utility model;
Wherein, 1 high-tension coil, 2 low-voltage coils, 3 square rings, 4 electrostatic rings, 5 end winding oil clearances.
Embodiment
Fig. 1 is the preferred embodiment of the utility model, below in conjunction with accompanying drawing the utility model is further described: wherein, and 1 high-tension coil, 2 low-voltage coils, 3 square rings, 4 electrostatic rings, 5 end winding oil clearances.
Referring to Fig. 1; The Winding End of Power Transformer structure; Comprise high-tension coil 1, low-voltage coil 2, end winding oil clearance 5, it is characterized in that: also comprise the square ring 3 that is positioned at end winding oil clearance 5 and high-tension coil 1 end, the electrostatic ring 4 that is positioned at high-tension coil 1 end; Wherein square ring 3 is the L type, is the profiled insulation square ring, and square ring 3 is 2 or 3.
Square ring has improved the dielectric strength of end winding, and wherein the profiled insulation square ring is more reliable, and it is better that 2 or 3 square ring effects are set; Electrostatic ring can improve the end electric field, and improves impact resistance.
The foregoing description does not limit the utility model in any form, and all employings are equal to the technical scheme that mode obtained of replacement or equivalent transformation, all drop in the protection range of the utility model.
Claims (1)
1. Winding End of Power Transformer structure; Comprise high-tension coil (1), low-voltage coil (2), end winding oil clearance (5), it is characterized in that: also comprise the square ring (3) that is positioned at end winding oil clearance (5) and high-tension coil (1) end, the electrostatic ring (4) that is positioned at high-tension coil (1) end; Wherein square ring (3) is the L type, is the profiled insulation square ring, and square ring (3) is 2 or 3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120270866U CN202134350U (en) | 2011-07-28 | 2011-07-28 | Winding head structure of power transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120270866U CN202134350U (en) | 2011-07-28 | 2011-07-28 | Winding head structure of power transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202134350U true CN202134350U (en) | 2012-02-01 |
Family
ID=45523112
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201120270866U Expired - Fee Related CN202134350U (en) | 2011-07-28 | 2011-07-28 | Winding head structure of power transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202134350U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102360799A (en) * | 2011-07-28 | 2012-02-22 | 苏州鼎能电力设备有限公司 | Winding head structure of power transformer |
-
2011
- 2011-07-28 CN CN201120270866U patent/CN202134350U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102360799A (en) * | 2011-07-28 | 2012-02-22 | 苏州鼎能电力设备有限公司 | Winding head structure of power transformer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120201 Termination date: 20120728 |