CN105140025A - Novel oil-immersed transformer-end insulation structure - Google Patents
Novel oil-immersed transformer-end insulation structure Download PDFInfo
- Publication number
- CN105140025A CN105140025A CN201510628230.7A CN201510628230A CN105140025A CN 105140025 A CN105140025 A CN 105140025A CN 201510628230 A CN201510628230 A CN 201510628230A CN 105140025 A CN105140025 A CN 105140025A
- Authority
- CN
- China
- Prior art keywords
- voltage coil
- low
- clamping piece
- paper
- novel oil
- 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.)
- Pending
Links
Landscapes
- Insulating Of Coils (AREA)
Abstract
The invention belongs to the technical field of transformer manufacturing, and particularly relates to a novel oil-immersed transformer-end insulation structure. The structure wraps a cable paper layer on the outer side of a low-voltage coil; an insulating paper board with the function of fixing and enhancing insulation wraps the outer side of the cable paper layer; crepe paper wraps the outer side of the insulating paper board to form a soft corner ring; the two ends of the soft corner ring turn over towards a high-voltage coil and press to be flat within the upper and lower end faces of separating plates; an upper insulating plate is arranged between an upper clamping piece and the upper ends of the low-voltage coil and the high-voltage coil; a lower insulating plate is arranged between a lower clamping piece and the lower ends of the low-voltage coil and the high-voltage coil. The structure provided by the invention is reliable and reasonable, the cost is low, and the processing and production are convenient and fully meet the modern large-scale and intensive production needs.
Description
Technical field
Patent of the present invention belongs to technical field of transformer manufacturing, particularly relates to a kind of Novel oil-immersed transformer end insulation system.
Background technology
At present, because design based on conventional transformer structure and be subject to the restriction in conventional transformer structure space, the high and low pressure outlet position major part design of the middle-size and small-size power transformer of the oil immersed type circulated in market is in the outlet of case lid position.Along with the development for field of power distribution science and technology, town and country power supply-distribution system circuit changes underground cable cabling mode into gradually by traditional overhead cabling mode, this outlet position causing traditional oil-immersed power transformer to be reserved is not suitable for the cabling mode of current underground cable, cable repeatedly need be torn open curved when power supply-distribution system circuit is connected with power transformer by power supply-distribution system installment work personnel, this just causes wiring difficult and is unfavorable for that power supply-distribution system installment work personnel carry out construction laying and the debugging of power supply-distribution system.In addition, cable is fragile and generation danger of hazardous electrical discharges after bending, causes harmful effect, reduce the fail safe of power supply-distribution system to the useful life of power supply-distribution system.
10kV oil immersion-type distribution transformer Main Insulation Structure of Electric is generally, and adopts corrugated oil duct or curtain oil duct between high-low pressure, adopts core insulation between coil and Double layer iron yoke unshakable in one's determination, and alternate employing phase partition insulate.The advantage of this structure is reliable, and shortcoming is that processing parts is more, and by existing testing inspection requirement, just will must ensure enough insulation distances, and the material of needs is many, and cost is high.
Summary of the invention
In order to solve the problem, patent of the present invention provides a kind of Novel oil-immersed transformer end insulation system, and this structure is reliable, rationally, cost is low; Processing is convenient, adapts to the demand of modern extensive, intensive manufacture completely.
The object of patent of the present invention is achieved through the following technical solutions:
A kind of Novel oil-immersed transformer end insulation system, comprise low-voltage coil, high-tension coil, upper clamping piece, lower clamping piece and iron core, it is characterized in that: coated cable ply of paper outside described low-voltage coil, the coated insulating board playing fixing reinforced insulation effect outside described cable ply of paper; Outside described insulating board, wrap up crimped paper and form soft corner-ring; The two ends of described soft corner-ring flatten to the upset of described high-tension coil side, and within being pressed in the upper and lower end face of dividing plate; At described upper clamping piece and be provided with insulating pad between low-voltage coil and the upper end of high-tension coil, at described lower clamping piece and be provided with lower insulating pad between low-voltage coil and the lower end of high-tension coil.。
Preferably, described cable ply of paper is made up of 12 0.08mm cable papers.
Preferably, described insulating board is one deck, thick 0.5mm.
Preferably, described crimped paper is 2, thick 0.8mm.
Preferably, upper insulating pad and lower insulating pad are bonded on the thick cardboard of 2mm by the paperboard strip that 10mm is wide and form.
Patent of the present invention has following beneficial effect:
Patent structure of the present invention is reliable, reasonable, and main material cost have dropped about about 6%; Processing is convenient, adapts to the demand of modern extensive, intensive manufacture completely; Not only enhance productivity, improve the crudy that processing technology ensure that end insulation, more saved insulating cylinder material, and reduce man hour of labour, reduce working time.
Accompanying drawing explanation
Fig. 1 is the structural representation of patent of the present invention.
In figure: 1-low-voltage coil; 2-high-tension coil; 3-upper clamping piece; 4-lower clamping piece; 5-iron core; 6-dividing plate; The upper insulating pad of 7-; Insulating pad under 8-; 9-insulating board; 10-soft corner-ring; 11-cable ply of paper.
Embodiment
Below in conjunction with embodiment, patent of the present invention is described further.
Embodiment
As shown in Figure 1, a kind of Novel oil-immersed transformer end insulation system, this Main Insulation Structure of Electric comprises low-voltage coil 1, high-tension coil 2, upper clamping piece 3, lower clamping piece 4 and iron core 5, low-voltage coil around outside coated cable ply of paper 11, cable ply of paper is made up of 9 0.08mm cable papers.The coated insulating board 9 playing fixing reinforced insulation effect outside cable ply of paper, insulating board is one deck, thick 0.5mm.Outside insulating board, wrap up crimped paper and form soft corner-ring 10; Crimped paper is 2, thick 0.8mm.The two ends of soft corner-ring flatten to the upset of high-tension coil side, and within being pressed in the upper and lower end face of dividing plate 6; Upper clamping piece and low-voltage coil around and the upper end of high-tension coil between be provided with insulating pad 7, lower clamping piece and low-voltage coil around and the lower end of high-tension coil between be provided with lower insulating pad 8.Upper insulating pad and lower insulating pad are bonded on the thick cardboard of 2mm by the paperboard strip that 10mm is wide and form.
The manufacture method of this Main Insulation Structure of Electric is as follows:
After low-voltage coil coiling completes, outsourcing 12 0.08mm cables are opened, and then bag one deck 0.5mm heavy insulation cardboard plays fixing reinforced insulation effect, finally wrap up the thick crimped paper of 2 0.8mm growing coil height every limit 20mm, play soft corner-ring effect, last coiling high-tension coil.
First lower insulating pad being put on lower clamping piece during suit, being inserted in high-voltage coil and low-voltage coil, now needing to flatten growing coil height part soft corner-ring toward the upset of high-tension coil side.After three groups of mounting coils complete, insert the phase partition of shaped as frame, within soft corner-ring position is pressed in the upper and lower end face of dividing plate.
Then upper yoke is inserted, insulating pad in placement.Finally load onto folder, draw screw rod, folder screw rod is to complete assembling.
The core of this structure is: add soft corner-ring by cable paper between high-voltage coil and low-voltage coil and form, and is achieved the infiltration of transformer oil by the texture of crimped paper, achieves small oil gap structure, ensure that the dielectric strength between coil; By soft corner-ring and shaped as frame phase partition with the use of, make end winding and have enough electrical strengths between iron core up and down, ensure that the reliability of withstand voltage test, greatly reduce electric insulation distance required in original structure simultaneously; By the use of upper and lower insulating pad, eliminate the cushion block in original structure, insulating pad is easy to process and can Appropriate application tailing, has saved raw-material use widely.
Utilize technical solutions according to the invention, or those skilled in the art being under the inspiration of invention technical scheme, designs similar technical scheme, and reaching above-mentioned technique effect, is all fall into protection scope of the present invention.
Claims (5)
1. a Novel oil-immersed transformer end insulation system, comprise low-voltage coil, high-tension coil, upper clamping piece, lower clamping piece and iron core, it is characterized in that: coated cable ply of paper outside described low-voltage coil, the coated insulating board playing fixing reinforced insulation effect outside described cable ply of paper; Outside described insulating board, wrap up crimped paper and form soft corner-ring; The two ends of described soft corner-ring flatten to the upset of described high-tension coil side, and within being pressed in the upper and lower end face of dividing plate; At described upper clamping piece and be provided with insulating pad between low-voltage coil and the upper end of high-tension coil, at described lower clamping piece and be provided with lower insulating pad between low-voltage coil and the lower end of high-tension coil.
2. Novel oil-immersed transformer end insulation system according to claim 1, is characterized in that: described cable ply of paper is made up of 12 0.08mm cable papers.
3. Novel oil-immersed transformer end insulation system according to claim 1, is characterized in that: described insulating board is one deck, thick 0.5mm.
4. Novel oil-immersed transformer end insulation system according to claim 1, is characterized in that: described crimped paper is 2, thick 0.8mm.
5. Novel oil-immersed transformer end insulation system according to claim 1, is characterized in that: upper insulating pad and lower insulating pad are bonded on the thick cardboard of 2mm by the paperboard strip that 10mm is wide and form.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510628230.7A CN105140025A (en) | 2015-09-28 | 2015-09-28 | Novel oil-immersed transformer-end insulation structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510628230.7A CN105140025A (en) | 2015-09-28 | 2015-09-28 | Novel oil-immersed transformer-end insulation structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105140025A true CN105140025A (en) | 2015-12-09 |
Family
ID=54725339
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510628230.7A Pending CN105140025A (en) | 2015-09-28 | 2015-09-28 | Novel oil-immersed transformer-end insulation structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105140025A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106783091A (en) * | 2016-12-12 | 2017-05-31 | 江苏扬动电气有限公司 | A kind of soft corner-ring between the high-voltage coil and low-voltage coil for amorphous transformer |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20040037861A (en) * | 2002-10-30 | 2004-05-08 | 한국전력공사 | A transformer insulation system for power distribution of complex insulation method |
| CN201576544U (en) * | 2009-12-25 | 2010-09-08 | 广东钜龙电力设备有限公司 | 20kV oil immersed transformer main insulation structure |
| CN202662436U (en) * | 2012-06-27 | 2013-01-09 | 上海中莱特子金电气股份有限公司 | Major insulation structure of soft angle ring |
| CN103971907A (en) * | 2014-05-19 | 2014-08-06 | 镇江天力变压器有限公司 | Main insulation structure of oil-immersed transformer and manufacturing method of main insulation structure |
| CN203826184U (en) * | 2014-05-19 | 2014-09-10 | 镇江天力变压器有限公司 | Main insulation structure of oil-immersed transformer |
-
2015
- 2015-09-28 CN CN201510628230.7A patent/CN105140025A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20040037861A (en) * | 2002-10-30 | 2004-05-08 | 한국전력공사 | A transformer insulation system for power distribution of complex insulation method |
| CN201576544U (en) * | 2009-12-25 | 2010-09-08 | 广东钜龙电力设备有限公司 | 20kV oil immersed transformer main insulation structure |
| CN202662436U (en) * | 2012-06-27 | 2013-01-09 | 上海中莱特子金电气股份有限公司 | Major insulation structure of soft angle ring |
| CN103971907A (en) * | 2014-05-19 | 2014-08-06 | 镇江天力变压器有限公司 | Main insulation structure of oil-immersed transformer and manufacturing method of main insulation structure |
| CN203826184U (en) * | 2014-05-19 | 2014-09-10 | 镇江天力变压器有限公司 | Main insulation structure of oil-immersed transformer |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106783091A (en) * | 2016-12-12 | 2017-05-31 | 江苏扬动电气有限公司 | A kind of soft corner-ring between the high-voltage coil and low-voltage coil for amorphous transformer |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103971907B (en) | A kind of main insulation structure of oil immersed transformer and manufacture method thereof | |
| CN203826184U (en) | Main insulation structure of oil-immersed transformer | |
| KR101596399B1 (en) | iron core winding assembly for transformer | |
| CN202816595U (en) | High-insulation transformer | |
| CN105140025A (en) | Novel oil-immersed transformer-end insulation structure | |
| CN205335052U (en) | Single -phase auto -transformer | |
| CN202093924U (en) | Adjustable compensating reactor | |
| CN201465757U (en) | Angle ring for transformer coil and transformer with same | |
| CN103151904A (en) | High-power, high-frequency pulse and high-voltage rectifying transformer | |
| CN201689776U (en) | Shield isolation voltage transformer below 10 kV | |
| CN104078216B (en) | The pectination insulating paper of a kind of alternative transformer terminal sky insulation and using method thereof | |
| CN210896956U (en) | Structure is wrapped to voltage transformer ware body | |
| CN203338954U (en) | Coil insulation structure of oil-immersed transformer | |
| CN105261463A (en) | Oil-immersed type transformer coil | |
| CN205318990U (en) | Oil -immersed transformer high pressure laminar winding end coils | |
| CN202872498U (en) | High-voltage motor insulation thinning device | |
| CN204558209U (en) | A kind of amorphous alloy transformer coil | |
| CN203760289U (en) | Cushion block structure between high voltage coil segments of dry-type transformer | |
| CN203871157U (en) | Transformer coil end insulating structure | |
| CN203377080U (en) | Open-type transformer high-voltage wire winding | |
| CN202917313U (en) | Amorphous alloy distribution transformer and main insulation structure thereof | |
| CN102708949B (en) | Conductor composited in radially and axially parallel way for three times and processing method thereof | |
| CN201146097Y (en) | Cuprum aluminum combination type distribution transformer | |
| CN203151362U (en) | High-power high-frequency impulse high-voltage rectifier transformer | |
| CN201298438Y (en) | Ellipse transformer coil |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20151209 |