CN204632545U - A kind of high-performance distribution transformer - Google Patents
A kind of high-performance distribution transformer Download PDFInfo
- Publication number
- CN204632545U CN204632545U CN201520303836.9U CN201520303836U CN204632545U CN 204632545 U CN204632545 U CN 204632545U CN 201520303836 U CN201520303836 U CN 201520303836U CN 204632545 U CN204632545 U CN 204632545U
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- tension coil
- voltage coil
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- Insulating Of Coils (AREA)
Abstract
A kind of high-performance distribution transformer, comprise low-voltage coil, high-tension coil and iron core, low-voltage coil and high-tension coil are disposed side by side in iron core, are provided with core insulation in iron core; The two ends of low-voltage coil are provided with low-pressure end insulation, and the two ends of high-tension coil are provided with high-pressure side insulation; It is main oil gallery between low-voltage coil and high-tension coil; The side that low-voltage coil is relative with high-tension coil is provided with DPE insulating point gummed paper.The layer insulation of low-voltage coil adopts TUF-Flex insulating point gummed paper.The layer insulation of high-tension coil adopts DPE insulating point gummed paper.The utility model adopts the insulating point gummed paper of B-class insulation thermal endurance class, decreases insulation total amount, adds the winding temperature rise that coil can bear, at least can increase 10K, reduce the idling load-loss of transformer, capability of overload obtains very large enhancing, can overload long-time running.
Description
Technical field
The utility model relates to a kind of distribution transformer, belongs to distribution transformer technical field.
Background technology
Along with the variation of power transformer product kind, performance parameter, the requirement of distribution transformer to insulation property is also more and more higher.There is the deficiencies such as insulation total amount winding temperature rise that is large, that can bear is low, idling carries greatly, capability of overload is poor in existing distribution transformer.High performance requirements can not be adapted to.
Summary of the invention
The utility model for existing distribution transformer machinery and electric property in existence deficiency, provide a kind of amount of insulation little, bear the high-performance distribution transformer that winding temperature rise is high, capability of overload is strong.
High-performance distribution transformer of the present utility model, by the following technical solutions:
This distribution transformer, comprises low-voltage coil, high-tension coil and iron core, and low-voltage coil and high-tension coil are disposed side by side in iron core, are provided with core insulation in iron core; The two ends of low-voltage coil are provided with low-pressure end insulation, and the two ends of high-tension coil are provided with high-pressure side insulation; It is main oil gallery between low-voltage coil and high-tension coil; The side that low-voltage coil is relative with high-tension coil is provided with DPE insulating point gummed paper.
The layer insulation of low-voltage coil adopts TUF-Flex insulating point gummed paper.
The layer insulation of high-tension coil adopts DPE insulating point gummed paper.
The utility model adopts the insulating point gummed paper of B-class insulation thermal endurance class, decreases insulation total amount, adds the winding temperature rise that coil can bear, at least can increase 10K, reduce the idling load-loss of transformer, capability of overload obtains very large enhancing, can overload long-time running.
Accompanying drawing explanation
Fig. 1 is the insulation system schematic diagram of the utility model high-performance distribution transformer.
Wherein: 1. low-pressure end insulation; 2.DPE insulating point gummed paper; 3. main oil gallery; 4. high-pressure side insulation; 5. low-voltage coil; 6. core insulation; 7. unshakable in one's determination; 8. high-tension coil.
Embodiment
As shown in Figure 1, high-performance distribution transformer of the present utility model, comprise low-voltage coil 5, high-tension coil 8 and unshakable in one's determination 7, low-voltage coil 5 and high-tension coil 8 are disposed side by side in unshakable in one's determination 7, and the inwall of unshakable in one's determination 7 is provided with core insulation 6.The two ends of low-voltage coil 5 are provided with low-pressure end insulation 1, and the two ends of high-tension coil 8 are provided with high-pressure side insulation 4.It is main oil gallery 3 between low-voltage coil 5 and high-tension coil 8.The side that low-voltage coil 5 is relative with high-tension coil 8 is provided with DPE (dipentaerythritol) insulating point gummed paper 2, realizes the main insulation between high-low pressure.
Low-voltage coil 5 adopts paper tinsel around structure, and its layer insulation adopts the B level TUF-Flex insulating point gummed paper that mechanical strength is high, thickness is thin) (being produced by Switzerland Wei De graceful (WEIDMANN) group).Add half oil duct in the middle of paper tinsel coiling, increase the heat-sinking capability of coil.For low-voltage coil 5, because low voltage voltage grade is low, its side adopts the TUF-Flex insulating point gummed paper that mechanical strength is high, thickness is thin, while meeting electric property, decreases the thickness of layer insulation, adds the mechanical strength of coil.
For high-tension coil 8, its layer insulation adopts the DPE insulating point gummed paper of good electric property, and under equal pressure reduction, the thickness of thinning layer insulation, saves wire material.Utilize this High Performance Insulation material to reduce the usage quantity of permeability magnetic material, wire material and insulating material, increase operation rate.The end insulation of the front two-layer coil of high-tension coil 8 simultaneously adopts lengthened insulative, to strengthen creepage distance.
Adopt TUF-Flex insulating point gummed paper and the DPE insulating point gummed paper of B-class insulation thermal endurance class, the winding temperature rise that low-voltage coil 5 and high-tension coil 8 can bear can be increased, reduce the idling load-loss of transformer.Simultaneously for the difference of low-voltage coil 5 and high-tension coil 8 electric pressure, adopts the insulating point gummed paper of two kinds of different performances requirements.
Due to the insulate minimizing of total amount and the outstanding heat conduction of insulating material itself, heat resistance, the winding temperature rise that coil can be born at least can increase 10K.Namely winding mean temperature reaches 115 DEG C, oily temperature of top is when reaching 105 DEG C, and transformer also can safe operation.Be optimized the insulation of coil and device body, radiator structure, the capability of overload of transformer obtains very large enhancing, enables transformer bear the overload long-time running of 1.15 times, is specially adapted to the torrid zone, semi-tropical high temperature area simultaneously.
Main insulation between high-tension coil 8 and low-voltage coil 5 adopts DPE insulating point gummed paper and the stay chain combination structure of high electrical property, while decreasing insulation distance, also meets the requirement of coil heat radiation.
Because insulating material uses the minimizing of total amount, the size of coil and iron core 7 is all reduced, saves material.The profile of transformer also reduces.The simultaneously minimizing of insulating material makes that the coiling of coil is more controlled, efficiency is higher.
Claims (3)
1. a high-performance distribution transformer, comprises low-voltage coil, high-tension coil and iron core, and low-voltage coil and high-tension coil are disposed side by side in iron core, are provided with core insulation in iron core; It is characterized in that: the two ends of low-voltage coil are provided with low-pressure end insulation, the two ends of high-tension coil are provided with high-pressure side insulation; It is main oil gallery between low-voltage coil and high-tension coil; The side that low-voltage coil is relative with high-tension coil is provided with DPE insulating point gummed paper.
2. high-performance distribution transformer according to claim 1, is characterized in that: the layer insulation of described low-voltage coil adopts TUF-Flex insulating point gummed paper.
3. high-performance distribution transformer according to claim 1, is characterized in that: the layer insulation of described high-tension coil adopts DPE insulating point gummed paper.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520303836.9U CN204632545U (en) | 2015-05-12 | 2015-05-12 | A kind of high-performance distribution transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520303836.9U CN204632545U (en) | 2015-05-12 | 2015-05-12 | A kind of high-performance distribution transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204632545U true CN204632545U (en) | 2015-09-09 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520303836.9U Expired - Fee Related CN204632545U (en) | 2015-05-12 | 2015-05-12 | A kind of high-performance distribution transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204632545U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104835636A (en) * | 2015-05-12 | 2015-08-12 | 山东电工电气集团智能电气有限公司 | High-performance distribution transformer |
-
2015
- 2015-05-12 CN CN201520303836.9U patent/CN204632545U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104835636A (en) * | 2015-05-12 | 2015-08-12 | 山东电工电气集团智能电气有限公司 | High-performance distribution transformer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20161229 Address after: 250022 Shandong Province, Ji'nan city central machine West Road No. 3 Patentee after: Shandong Power Equipment Company Patentee after: Intelligent electric Co., Ltd of Shandong electrician electric group Patentee after: Jinan Power Supply Company, State Grid Shandong Electric Power Company Address before: 250022 Shandong Province, Ji'nan city central machine West Road No. 3 Patentee before: Intelligent electric Co., Ltd of Shandong electrician electric group |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150909 Termination date: 20170512 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |