CN209691561U - A kind of oil-immersed transformer insulation system - Google Patents
A kind of oil-immersed transformer insulation system Download PDFInfo
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- CN209691561U CN209691561U CN201920518638.2U CN201920518638U CN209691561U CN 209691561 U CN209691561 U CN 209691561U CN 201920518638 U CN201920518638 U CN 201920518638U CN 209691561 U CN209691561 U CN 209691561U
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- oil duct
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Abstract
A kind of oil-immersed transformer insulation system, including iron core, low-voltage coil, high-tension coil and insulation division, the both ends of iron core are provided with iron yoke, low-voltage coil is wound on the outside of iron core, insulating paper is provided between iron core and low-voltage coil, insulation division is provided on the outside of low-voltage coil, high-tension coil is wound on the outside of insulation division, insulation division includes the first oil duct stay, second oil duct stay, soft corner-ring and insulating tape, the inside of first oil duct stay and the second oil duct stay is rectangular toothed structure, the first oil duct stay is provided on the outside of low-voltage coil, insulating tape is provided on the outside of first oil duct stay, soft corner-ring is provided on the outside of insulating tape, high-tension coil is provided on the outside of soft corner-ring, the second oil duct support bar is provided between soft corner-ring and high-tension coil, rectangular toothed structure and high-tension coil are inconsistent, the utility model pass through by Half oil duct of tubular carries out structural improvement, should be able to mutually reduce the shell sizes of transformer.
Description
Technical field
The utility model relates to transformer equipment field, more particularly, to a kind of oil-immersed type transformer insulation system.
Background technique
Transformer insulated technology is always the technology that power industry is continuously improved, the patent No.: CN207397916U patent
Name: 35kV oil-immersed type transformer body insulation system, by the knot that oil duct stay curtain is arranged between low-voltage coil and high-tension coil
Structure can increase insulation distance, not increase transformer size in the case where solving setting square ring, but high-voltage coil and low-voltage coil it
Between insulation spacing it is still larger, and often space is limited for real transformer fabricating yard, need same capacity but size compared with
Small transformers meet requirement, it is therefore desirable to which a kind of improved technology is able to solve problem above.
Summary of the invention
The utility model provides a kind of oil-immersed transformer insulation system, by improve high-tension coil and low-voltage coil it
Between built-in electrical insulation structure, reduce coil between insulation distance, and then reduce transformer body size；The skill of the utility model
Art scheme are as follows:
A kind of oil-immersed transformer insulation system, including iron core, low-voltage coil, high-tension coil and insulation division, the iron core
Both ends be provided with iron yoke, low-voltage coil is wound on the outside of iron core, insulating paper is provided between iron core and low-voltage coil, absolutely
Edge paper is compressed by the winding of low-voltage coil, is provided with insulation division on the outside of low-voltage coil, is wound with high pressure on the outside of insulation division
Coil, the insulation division include the first oil duct stay, the second oil duct stay, soft corner-ring and insulating tape, the first oil duct stay
Inside with the second oil duct stay is that can enhance the logical rectangular toothed structure of oil stream, and the is provided on the outside of the low-voltage coil
One oil duct stay, the rectangular toothed structure of the first oil duct stay and the surface of low-voltage coil are inconsistent, outside the first oil duct stay
Side is provided with insulating tape, and soft corner-ring is provided on the outside of insulating tape, high-tension coil, soft corner-ring and height are provided on the outside of soft corner-ring
The second oil duct stay is provided between crimping circle, the rectangular toothed structure and high-tension coil of the second oil duct stay are inconsistent.
Further, the first oil duct stay and the second oil duct stay are insulation board, the groove depth of rectangular toothed structure
Degree is 0.5-1.5mm, and rectangular toothed structure forms half oil duct, increases the immersion and circulation of oil, transformer oil is made full use of to improve
Dielectric level, while being capable of intensifier coil heat dissipation.
Further, the insulating tape further includes corrugated insulation paper layer and insulating rubber slab, and corrugated insulation paper layer is by multilayer
Insulating paper bonding, the outside of corrugated insulation layer and the first oil duct stay bonds, outside insulating rubber slab and corrugated insulation layer pass through
Force conjunction.
Further, the bending part including vertical portion and both ends of the soft corner-ring, the vertical portion is adopted between coil
With small oil gap structure, the bending part is big oil clearance structure, and the soft corner-ring quantity is not more than 3.
Compared with prior art, the utility model is by carrying out structural improvement for half oil duct of tubular, by being directly arranged
Rectangular toothed structure increases the space of oil duct, improves dielectric level, by changing the insulation between high-tension coil and low-voltage coil
Structure, reduce between insulation distance, do not reduce dielectric level, the insulating tape between coil is provided with corrugated insulation paper,
Can more oil suctions and the limitation of soft corner-ring quantity can reduce between insulation distance, the reduction of distance between coil,
The distance between entire iron core frameworks are accordingly changed, so as to reduce the shell sizes of transformer, save the cost, while this
Kind of structure can also intensifier coil heat dissipation, the service life of intensifier coil and coil insulation system.
Detailed description of the invention
The utility model is described in further detail below in conjunction with attached drawing.
Attached drawing 1 is the structural schematic diagram of the utility model.
In attached drawing, 1, iron core, 2, low-voltage coil, 3, high-tension coil, 11, iron yoke, the 41, first oil duct stay, the 42, second oil
Road stay, 5, insulating tape, 51, insulating paper, 52, insulating rubber slab, 53, soft corner-ring.
Specific embodiment
In order to enable those skilled in the art to better understand the technical solutions of the present invention, with reference to the accompanying drawing 1 and tool
Body embodiment is further described the utility model.
As shown in Fig. 1, a kind of oil-immersed transformer insulation system, including iron core 1, low-voltage coil 2,3 and of high-tension coil
Insulation division, the upper end of the iron core 1 are provided with iron yoke 11, and the outside of iron core 1 is wound with low-voltage coil 2, iron core 1 and low-voltage line
Insulating paper is provided between circle 2, insulating paper is compressed by the winding of low-voltage coil 2, and the outside of low-voltage coil 2 is provided with insulation
Portion is wound with high-tension coil 3 on the outside of insulation division, and low-voltage coil 2 and insulating paper compress and the both ends outer layer of low-voltage coil compresses
Insulating paper flange wrap up low-voltage coil 2, the insulation division include the first oil duct stay 41, the second oil duct stay 42, soft corner-ring
53 and insulating tape 5, the inside of the first oil duct stay 41 and the second oil duct stay 42 is that can enhance the logical rectangular teeth of oil stream
Shape structure, the outside of the low-voltage coil 2 are provided with the first oil duct stay 41, the rectangular toothed structure of the first oil duct stay 41 with
The surface of low-voltage coil 2 is inconsistent, and insulating tape is provided on the outside of the first oil duct stay, and the outside of insulating tape 5 is provided with soft angle
Ring 53, the outside of soft corner-ring 53 are provided with high-tension coil 3, and the second oil duct stay is provided between soft corner-ring 53 and high-tension coil 3
42, the rectangular toothed structure and high-tension coil 3 of the second oil duct stay 42 are inconsistent.
Further, the first oil duct stay 41 and the second oil duct stay 42 are insulation board, rectangular toothed structure
Groove depth is 0.5-1.5mm, and rectangular toothed structure forms half oil duct.
Further, the insulating tape (5) further includes corrugated insulation paper layer and insulating rubber slab (52), corrugated insulation paper layer
It is bonded by the insulating paper (51) of multilayer, the outside of corrugated insulation layer and the first oil duct stay (41) bonds, insulating rubber slab (52)
Pass through pressing by outside force with corrugated insulation layer.
Further, the bending part including vertical portion and both ends of the soft corner-ring 53, the vertical portion is between coil
Using small oil gap structure, the bending part is big oil clearance structure, and 53 quantity of soft corner-ring is not more than 3.
The utility model is increased by the way that half oil duct of tubular is carried out structural improvement by the way that rectangular toothed structure is directly arranged
Dielectric level is improved in the space of oil duct, by changing the insulation system between high-tension coil and low-voltage coil, reduce between
Insulation distance, while without increase cost, dielectric level is not reduced, the insulating tape between coil is provided with corrugated insulation paper,
Can more oil suctions and the limitation of soft corner-ring quantity can reduce between insulation distance, the reduction of distance between coil,
The distance between entire iron core frameworks are accordingly changed, so as to reduce the shell sizes of transformer, save the cost, reduction is set
Standby floor space；Simultaneously this structure can also intensifier coil heat dissipation, intensifier coil and coil insulation system use the longevity
Life.
Using technical solution described in the utility model or those skilled in the art in technical solutions of the utility model
Under inspiration, similar technical solution is designed, and reaches above-mentioned technical effect, is the protection model for falling into the utility model
It encloses.
Claims (4)
1. a kind of oil-immersed transformer insulation system, including iron core (1), low-voltage coil (2), high-tension coil (3) and insulation division, institute
The both ends for stating iron core (1) are provided with iron yoke (11), are wound on the outside of iron core (1) low-voltage coil (2), iron core (1) and low-voltage line
Insulating paper is provided between circle (2), insulating paper is compressed by the winding of low-voltage coil (2), and low-voltage coil is provided on the outside of (2)
Insulation division is wound with high-tension coil (3) on the outside of insulation division, it is characterised in that the insulation division includes the first oil duct stay
(41), the second oil duct stay (42), soft corner-ring (53) and insulating tape (5), the first oil duct stay (41) and the support of the second oil duct
The inside of item (42) is that can enhance the logical rectangular toothed structure of oil stream, and the first oil is provided on the outside of the low-voltage coil (2)
Road stay (41), the rectangular toothed structure of the first oil duct stay (41) and the surface of low-voltage coil (2) are inconsistent, the support of the first oil duct
It is provided with insulating tape on the outside of item, is provided on the outside of insulating tape (5) soft corner-ring (53), soft corner-ring is provided with height on the outside of (53)
Crimping circle (3) is provided with the second oil duct stay (42), the second oil duct stay (42) between soft corner-ring (53) and high-tension coil (3)
Rectangular toothed structure and high-tension coil (3) it is inconsistent, the first oil duct stay (41) and the second oil duct stay (42) it is upper
End and lower end are in contact with iron yoke (11) respectively.
2. a kind of oil-immersed transformer insulation system according to claim 1, which is characterized in that the first oil duct support
Item (41) and the second oil duct stay (42) are insulation board, and the groove depth of rectangular toothed structure is 0.5-1.5mm, rectangular toothed structure
Form half oil duct.
3. a kind of oil-immersed transformer insulation system according to claim 1, which is characterized in that the insulating tape (5) is also
Including corrugated insulation paper layer and insulating rubber slab (52), corrugated insulation paper layer is bonded by the insulating paper (51) of multilayer, corrugated insulation
The outside of layer and the first oil duct stay (41) bonds, and insulating rubber slab (52) and corrugated insulation layer pass through pressing by outside force.
4. a kind of oil-immersed transformer insulation system according to claim 1, which is characterized in that the soft corner-ring (53)
Bending part including vertical portion and both ends, the vertical portion use small oil gap structure between coil, and the bending part is big oil
Gap structure, soft corner-ring (53) quantity are not more than 3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920518638.2U CN209691561U (en) | 2019-04-17 | 2019-04-17 | A kind of oil-immersed transformer insulation system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920518638.2U CN209691561U (en) | 2019-04-17 | 2019-04-17 | A kind of oil-immersed transformer insulation system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209691561U true CN209691561U (en) | 2019-11-26 |
Family
ID=68607909
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920518638.2U Active CN209691561U (en) | 2019-04-17 | 2019-04-17 | A kind of oil-immersed transformer insulation system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209691561U (en) |
-
2019
- 2019-04-17 CN CN201920518638.2U patent/CN209691561U/en active Active
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