CN103187149A - Transformer coil breakdown prevention method - Google Patents
Transformer coil breakdown prevention method Download PDFInfo
- Publication number
- CN103187149A CN103187149A CN2011104510014A CN201110451001A CN103187149A CN 103187149 A CN103187149 A CN 103187149A CN 2011104510014 A CN2011104510014 A CN 2011104510014A CN 201110451001 A CN201110451001 A CN 201110451001A CN 103187149 A CN103187149 A CN 103187149A
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- transformer coil
- breakdown
- coil
- breakdown prevention
- prevention method
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Abstract
The invention discloses a transformer coil breakdown prevention method. A breakdown prevention fan-shaped cushion block which is made of a paperboard is adopted and is arranged between a first pie coil outlet part and a second pie, and the two ends of the cushion block are bound through shrinkable tapes. The method is simple, and the defect of the breakdown of a transformer coil is effectively overcome.
Description
Affiliated technical field
The present invention relates to field transformer, especially a kind of transformer coil that prevents is resisted the method for wearing.
Background technology
At present, the big-and-middle-sized transformer high-voltage winding of 35KV level generally adopts continous way.The continuous winding direct-to-ground capacitance is very big.Under the surge voltage effect, the electric field strength of continous way winding head end is 5-30 times of average field-strength, and initial distribution is poor; During switching overvoltage, under the neutral ground situation, maximum electric potential gradient also may appear at coil end; The device body is put into transformer oil, and the cross-over block on the coil can compress attenuation, long operational time tautness not enough, have loosening phenomenon when serious, so first and last end failure rate is higher than other position of coil far away, overhang insulation is often breakdown.
Summary of the invention
Breakdown easily in order to prevent the transformer coil overhang insulation, the invention provides a kind of transformer coil that prevents and resist the method for wearing.Not only effectively must solve the breakdown defective of transformer coil, and method is simple.
The technical solution adopted for the present invention to solve the technical problems is: adopt an anti-breakdown fan-shaped cushion block with paperboard, be placed on first cake and lift one's head between place and second cake, be with firm colligation two ends with tightening.
Improve back first and last end and the destroyed phenomenon of insulation do not occur.
The method that the invention has the beneficial effects as follows is simple, can effectively solve the breakdown defective of transformer coil.
Description of drawings
The present invention is further described below in conjunction with drawings and Examples.
Fig. 1 is the schematic diagram of anti-breakdown fan-shaped cushion block.
Embodiment
Use the thick anti-breakdown fan-shaped cushion block of paperboard in the 3mm left and right sides, its width than the big 5mm of coil axial dimension about, length be stay at interval (1) add that both sides respectively extend 20-40mm, shape is the same with coil shape, being placed on first cake lifts one's head between place and second cake, be with firm colligation two ends with deflation, improve back first and last end and the destroyed phenomenon of insulation do not occur.
Claims (1)
1. one kind prevents that transformer coil from resisting and wears method, it is characterized in that: adopts an anti-breakdown fan-shaped cushion block with paperboard, be placed on first cake and lift one's head between place and second cake, be with firm colligation two ends with deflation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011104510014A CN103187149A (en) | 2011-12-30 | 2011-12-30 | Transformer coil breakdown prevention method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011104510014A CN103187149A (en) | 2011-12-30 | 2011-12-30 | Transformer coil breakdown prevention method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103187149A true CN103187149A (en) | 2013-07-03 |
Family
ID=48678276
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011104510014A Withdrawn CN103187149A (en) | 2011-12-30 | 2011-12-30 | Transformer coil breakdown prevention method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103187149A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09224342A (en) * | 1996-02-19 | 1997-08-26 | Fuji Elelctrochem Co Ltd | Terminal pin of coil bobbin |
| CN1750191A (en) * | 2004-09-15 | 2006-03-22 | 特变电工股份有限公司 | Compressing method for transformer body |
| CN101567260A (en) * | 2009-02-26 | 2009-10-28 | 山东泰开箱变有限公司 | Process for manufacturing high-pressure subsection cylindrical coil of dry type pouring transformer |
| CN101930832A (en) * | 2009-06-26 | 2010-12-29 | 特变电工沈阳变压器集团有限公司 | Fan-shaped cushion block for converter transformers and installation method thereof |
-
2011
- 2011-12-30 CN CN2011104510014A patent/CN103187149A/en not_active Withdrawn
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09224342A (en) * | 1996-02-19 | 1997-08-26 | Fuji Elelctrochem Co Ltd | Terminal pin of coil bobbin |
| CN1750191A (en) * | 2004-09-15 | 2006-03-22 | 特变电工股份有限公司 | Compressing method for transformer body |
| CN101567260A (en) * | 2009-02-26 | 2009-10-28 | 山东泰开箱变有限公司 | Process for manufacturing high-pressure subsection cylindrical coil of dry type pouring transformer |
| CN101930832A (en) * | 2009-06-26 | 2010-12-29 | 特变电工沈阳变压器集团有限公司 | Fan-shaped cushion block for converter transformers and installation method thereof |
Non-Patent Citations (1)
| Title |
|---|
| 赵静月: "《变压器制造工艺》", 30 April 2009, 中国电力出版社 * |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C04 | Withdrawal of patent application after publication (patent law 2001) | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20130703 |