CN206236528U - A kind of oil immersion-type distribution transformer main empty path insulation system - Google Patents
A kind of oil immersion-type distribution transformer main empty path insulation system Download PDFInfo
- Publication number
- CN206236528U CN206236528U CN201621315684.5U CN201621315684U CN206236528U CN 206236528 U CN206236528 U CN 206236528U CN 201621315684 U CN201621315684 U CN 201621315684U CN 206236528 U CN206236528 U CN 206236528U
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- CN
- China
- Prior art keywords
- coil
- low
- insulation system
- distribution transformer
- empty path
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- 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 discloses a kind of oil immersion-type distribution transformer main empty path insulation system, including unshakable in one's determination and low-voltage coil, low-voltage coil outside is provided with bamboo stay chain, a gummed paper is provided with the outside of bamboo stay chain, point gummed paper outside is provided with high-tension coil, and the low-voltage coil and high-tension coil are as integral assembling on iron core.The utility model can improve high and low pressure coil radiating condition, reduce winding temperature rise, it is ensured that coil winding consolidation, and each line segment smooths rounding, improve anti-sudden short circuit ability.
Description
Technical field
The utility model belongs to transformer technology field, and in particular to a kind of oil immersion-type distribution transformer main empty path insulation knot
Structure.
Background technology
Current oil immersion-type distribution transformer main empty path insulation system has two kinds：1st, corrugated board+insulating board structure, this is exhausted
The advantage of edge structure is corrugation one-shot forming, easy to make quick.Have the disadvantage due to corrugated board machinery intensity it is poor, coil around
Main empty path size is easily caused when processed to diminish, product impedance parameter and electrical strength is influenceed, and whole product is also resulted in addition anti-prominent
Hair short-circuit capacity is on the weak side, and current national grid has been forbidden using this insulation system in technical specification.2nd, paper sticky pad block stay
Chain+insulating board insulation system, this kind of structure solves the shortcoming of corrugated board+insulating board structure, but also generates simultaneously
Following shortcoming：A, paper sticky pad block stay chain processing trouble, workload increases more；B, paper sticky pad block stay are vertical bar shape,
Masked area increase to coil, influence coil radiating；C, it is to ensure that coil effectively radiating and the appropriate stay chain that reduces make work
Measure, the viscous stay spacing of paper can not possibly very little, into polygon when general control results in coil winding between 30~35mm, so
Shape, is so possible to that heat radiation oil duct can be caused to reduce or stopping up of oil channel, simultaneously because coil also influences transformer into polygon
Anti- sudden short circuit ability；D, due to use stay chain, high-pressured inside is insulating board, be ensure dielectric strength, insulating paper thickness of slab
Degree is typically no less than 2mm, and thicker insulating board can also influence the radiating of high-tension coil inner surface.
Utility model content
The purpose of this utility model is to provide a kind of oil immersion-type distribution transformer main empty path insulation system, above-mentioned to overcome
The defect that prior art is present, the utility model can improve high and low pressure coil radiating condition, reduce winding temperature rise, it is ensured that line
Circle coiling consolidation, each line segment smooths rounding, improves anti-sudden short circuit ability.
To reach above-mentioned purpose, the utility model is adopted the following technical scheme that：
A kind of oil immersion-type distribution transformer main empty path insulation system, including unshakable in one's determination and low-voltage coil, low-voltage coil outside set
Have bamboo stay chain, be provided with a gummed paper on the outside of bamboo stay chain, point gummed paper outside is provided with high-tension coil, the low-voltage coil and
High-tension coil is as integral assembling on iron core.
Further, described gummed paper continuous winding is on bamboo stay chain surface.
Further, the high-tension coil continuous coiling is on a gummed paper surface.
Compared with prior art, the utility model has following beneficial technique effect：
When in use, point gummed paper has more superior electric property to the utility model, instead of original insulating board, can suitably subtract
Thin dielectric layer thickness, improves high-tension coil inner surface radiating condition, so that high-tension coil temperature rise is reduced, the dispensing after coil drying
Paper can curing molding, after curing molding its mechanical strength be higher than common insulating board, and heat dry after put gummed paper can be by height
Low-voltage coil sticks together, and improves the mechanical strength of whole coil, and bamboo stay chain can mechanization batch production, operating efficiency in addition
Height, at the same it is with low cost, can cost efficiency.
Further, main empty path oil clearance is supported using bamboo stay chain, cylindrical compared with common paper sticky pad block stay chain
Bamboo stay is linear contact lay with coil, and the area of dissipation of coil is bigger, reduces the unit thermic load of coil surface, can improve coil
Temperature rise.
Further, spacing (10~15mm) and previous common paper sticky pad block stay chain stay spacing in bamboo stay (30~
35mm) compared to smaller, ensure that whole main empty path has more preferable excessive circular, lift coil heat-sinking capability, and bamboo stay
Chain solid support can improve coil mechanical strength.
Brief description of the drawings
Fig. 1 is the structural representation of the utility model distribution transformer main empty path；
Fig. 2 is bamboo stay link composition in the utility model structure, wherein (a) is front view；B () is top view；
Fig. 3 is paper sticky pad block stay link composition in original structure, wherein (a) is front view；B () is top view；
Fig. 4 is main empty path insulation system schematic diagram of the present utility model；
Fig. 5 is the main empty path insulation system schematic diagram of original structure.
Wherein, 1 for it is unshakable in one's determination, 2 be low-voltage coil, 3 be bamboo stay chain, 4 for a point gummed paper, 5 be high-tension coil, 6 be bamboo stay,
7 is connecting line, 8 is paper washer block, 9 is insulating board.
Specific embodiment
The utility model is described in further detail below in conjunction with the accompanying drawings：
Referring to Fig. 1, Fig. 2 and Fig. 4, a kind of oil immersion-type distribution transformer main empty path insulation system, including unshakable in one's determination 1 and low-voltage line
Circle 2, the outside of low-voltage coil 2 is provided with bamboo stay chain 3, and the outside of bamboo stay chain 3 is provided with a gummed paper 4, and point gummed paper 4 outside is provided with
As integral assembling on unshakable in one's determination 1, the bamboo stay chain 3 includes some cylinders for high-tension coil 5, low-voltage coil 2 and high-tension coil 5
The bamboo stay 6 of shape, one end of every bamboo stay 6 is cascaded by nylon wire, and the other end is connected on one also by nylon wire
Rise, the distance between every adjacent two bamboo stays 6 are 10~15mm.
Implementation process of the present utility model is further described below in conjunction with the accompanying drawings：
When in use, point gummed paper 4 has more superior electric property to the utility model, instead of original insulating board 9, can be appropriate
Thinning thickness of insulating layer, improves high-tension coil inner surface radiating condition, so as to reduce high-tension coil temperature rise, is dried in coil in addition
Point gummed paper 4 being capable of curing molding, point gummed paper 4 after its mechanical strength is higher than common insulating board 9 after curing molding, and heat is dried afterwards
High-tension coil 5 and low-voltage coil 2 can be sticked together, improve the mechanical strength of whole coil, main empty path oil clearance is supportted using bamboo
Bar chain 3 is supported, and compared with common paper sticky pad block 8, bamboo stay chain 3 is linear contact lay with coil, and the area of dissipation of coil is bigger, is reduced
The unit thermic load of coil surface, can improve the temperature rise of coil, and spacing (10~15mm) is general with previous in bamboo stay chain 3 in addition
Logical paper sticky pad block stay chain stay spacing (30~35mm) ensure that whole main empty path has more preferable excessive circular compared to smaller
(as shown in Figure 4), lifts coil heat-sinking capability, and bamboo stay chain solid support can improve coil mechanical strength.
Claims (3)
1. a kind of oil immersion-type distribution transformer main empty path insulation system, it is characterised in that including (1) unshakable in one's determination and low-voltage coil (2),
Low-voltage coil (2) outside is provided with bamboo stay chain (3), and a gummed paper (4), point gummed paper (4) outside are provided with the outside of bamboo stay chain (3)
It is provided with high-tension coil (5), the low-voltage coil (2) and high-tension coil (5) are as integral assembling on (1) unshakable in one's determination.
2. a kind of oil immersion-type distribution transformer main empty path insulation system according to claim 1, it is characterised in that the dispensing
Paper (4) continuous winding is on bamboo stay chain (3) surface.
3. a kind of oil immersion-type distribution transformer main empty path insulation system according to claim 1, it is characterised in that the high pressure
Coil (5) continuous coiling is on a gummed paper (4) surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621315684.5U CN206236528U (en) | 2016-12-01 | 2016-12-01 | A kind of oil immersion-type distribution transformer main empty path insulation system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621315684.5U CN206236528U (en) | 2016-12-01 | 2016-12-01 | A kind of oil immersion-type distribution transformer main empty path insulation system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206236528U true CN206236528U (en) | 2017-06-09 |
Family
ID=58977572
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621315684.5U Expired - Fee Related CN206236528U (en) | 2016-12-01 | 2016-12-01 | A kind of oil immersion-type distribution transformer main empty path insulation system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206236528U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116936245A (en) * | 2023-09-06 | 2023-10-24 | 扬州市天海滑线电气有限公司 | Insulation structure of extra-high voltage transformer |
-
2016
- 2016-12-01 CN CN201621315684.5U patent/CN206236528U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116936245A (en) * | 2023-09-06 | 2023-10-24 | 扬州市天海滑线电气有限公司 | Insulation structure of extra-high voltage transformer |
| CN116936245B (en) * | 2023-09-06 | 2023-11-28 | 扬州市天海滑线电气有限公司 | Insulation structure of extra-high voltage transformer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170609 Termination date: 20191201 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |