CN207397916U - 35kV oil-immersed type transformer device body insulation structures - Google Patents
35kV oil-immersed type transformer device body insulation structures Download PDFInfo
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- CN207397916U CN207397916U CN201721387128.3U CN201721387128U CN207397916U CN 207397916 U CN207397916 U CN 207397916U CN 201721387128 U CN201721387128 U CN 201721387128U CN 207397916 U CN207397916 U CN 207397916U
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Abstract
The utility model discloses a kind of 35kV oil-immersed type transformers device body insulation structures, and including low-voltage coil and high-tension coil, the outer cover of low-voltage coil is equipped with the oil duct stay curtain of multiple tubulars；Oil duct stay curtain is arranged between low-voltage coil and high-tension coil；Oil duct stay curtain includes support tube and multiple stays, and stay is arranged on the outer wall of support tube and is distributed along the axial direction of support tube, is equipped with soft corner-ring near the inner wall of the oil duct stay curtain of high-tension coil, the insulating element of tubular is equipped between remaining oil duct stay curtain；Soft corner-ring includes cylindrical portion and two annular bending parts, and the both ends of cylindrical portion are respectively provided with a bending part, and bending part is layed in the end of high-tension coil；Cylindrical portion and two bending parts are integrally formed.The insulation system of the utility model has good electric property in the case where not increasing the insulation distance between low-voltage coil and high-tension coil, also has the advantages that manufacture craft is simple, low manufacture cost.
Description
Technical field
The utility model is related to technical field of transformer equipment, more particularly to a kind of 35kV oil-immersed type transformers device body insulation knot
Structure.
Background technology
35kV low capacity oil-immersed type transformers, for example capacity, in the transformer of 50~2500kVA, market dosage is increasing.
With the implementation of national energy-saving environmental protection policy, user increasingly favors energy conservation and environmental protection transformer, therefore, the low damage of 35kV low capacities
Consumption (13 types even 15 types) oil-immersed type transformer demand is increasing.35kV low capacity low-loss oil-immersed type transformers, since capacity is small,
Voltage is high, and electric current is small, and the high-tension coil number of turn is more, mostly using cylinder mode, in order to ensure product electric property, height coil
Between square ring is usually set.Since high-tension coil is cylinder mode, set square ring there are operating procedure it is difficult, of high cost lack
It falls into.In order to ensure product electric property, can only often increase insulation distance between high-voltage coil and low-voltage coil, this can cause again product into
Originally greatly increase.
Utility model content
The technical problems to be solved in the utility model is to overcome drawbacks described above existing in the prior art, provide one kind
35kV oil-immersed type transformer device body insulation structures.
The utility model is to solve above-mentioned technical problem by following technical proposals：
A kind of 35kV oil-immersed type transformers device body insulation structure, including low-voltage coil and high-tension coil, low-voltage coil and height
Crimping circle is tubular；High-tension coil is sheathed on low-voltage coil；The outer cover of low-voltage coil is equipped with the oil duct stay of multiple tubulars
Curtain；Oil duct stay curtain is arranged between low-voltage coil and high-tension coil；Oil duct stay curtain includes support tube and multiple stays, stay are set
Outer wall in support tube and the distribution of the axial direction along support tube, the inner wall near the oil duct stay curtain of high-tension coil are equipped with soft angle
Ring is equipped with the insulating element of tubular between remaining oil duct stay curtain；Soft corner-ring includes cylindrical portion and two annular bending parts,
Two bending parts are respectively arranged on the both ends of cylindrical portion, and bending part is layed in the end of high-tension coil；Cylindrical portion and two bending parts are
It is integrally formed.
It is preferred that the thickness of support tube is 0.5mm.
It is preferred that the thickness of stay is 3-5mm.
It is preferred that distance is 30mm between adjacent stay.
It is preferred that the thickness of cylindrical portion is 1.6mm.
It is preferred that the material of insulating element is a gummed paper.
The positive effect of the utility model is：The insulation system of the utility model is not increasing low-voltage coil and height
In the case of insulation distance between crimping circle, have good electric property, can reach increase high-voltage coil and low-voltage coil between insulate
Apart from when properties of product；Since insulation distance between high-voltage coil and low-voltage coil need not be increased, the cost of product is greatly reduced.This practicality
It is new to have the advantages that manufacture craft is simple, low manufacture cost.
Description of the drawings
Fig. 1 is the schematic top plan view of the utility model preferred embodiment.
Fig. 2 is A-A schematic cross-sectional views in Fig. 1.
Specific embodiment
It names preferred embodiment, and becomes apparent from intactly illustrating the utility model with reference to attached drawing.
As depicted in figs. 1 and 2, a kind of 35kV oil-immersed type transformers device body insulation structure, including low-voltage coil 101 and high pressure
Coil 102, low-voltage coil 101 and high-tension coil 102 are tubular.High-tension coil is sheathed on low-voltage coil.
The outer cover of low-voltage coil 101 is equipped with the oil duct stay curtain 103 of multiple tubulars；Oil duct stay curtain 103 is arranged on low pressure
Between coil 101 and high-tension coil 102.It is set between adjacent oil duct stay curtain with fixing mode.
Oil duct stay curtain 103 includes support tube 104 and multiple stays 105, and the thickness of support tube is 0.5mm, the thickness of stay
It spends for 3-5mm.Support tube is surrounded by the rectangle cardboard that thickness is 0.5mm.
Stay 105 is arranged on the outer wall of support tube 104 and is distributed along the axial direction of support tube 104, between adjacent stay 105
Distance be 28-32mm；It is preferred that distance is 30mm between adjacent stay.
Inner wall near the oil duct stay curtain 103 of high-tension coil is equipped with soft corner-ring 106, remaining oil duct stay curtain 103
Between be equipped with tubular insulating element 107.The material of insulating element 107 is a gummed paper.
Soft corner-ring 106 includes cylindrical portion 108 and two annular bending parts 109, two bending parts 109 are respectively arranged on cylindrical portion
108 both ends, bending part 109 are layed in the end of high-tension coil 102；Cylindrical portion 108 and two bending parts 109 are integrated into
Type.The thickness of cylindrical portion is 1.6mm.
Cylindrical portion is superimposed back wall into the thickness of every crimped paper is 0.8mm by two crimped papers.Crimped paper has higher
Electric property and preferable toughness.The crimped paper surrounds both ends after tubular and stretches out high-tension coil certain length respectively, and by both ends
Extension is bent to high-tension coil, which is into bending part, and bending part forms the ring of a circumference.
In the component of the utility model, the material of oil duct stay curtain and soft corner-ring is insulating materials.
The insulation system of the utility model in the case where not increasing the insulation distance between low-voltage coil and high-tension coil,
With good electric property, properties of product when increasing insulation distance between high-voltage coil and low-voltage coil can be reached.The utility model by
The insulation distance between it need not increase high-voltage coil and low-voltage coil greatly reduces the cost of product.The utility model has manufacture craft letter
The advantages of list, low manufacture cost.
Although the foregoing describe specific embodiment of the present utility model, it will be appreciated by those of skill in the art that
This is merely illustrative of, and the scope of protection of the utility model is defined by the appended claims.Those skilled in the art
On the premise of the principle and essence without departing substantially from the utility model, many changes and modifications may be made,
But these change and modification each fall within the scope of protection of the utility model.
Claims (6)
1. a kind of 35kV oil-immersed type transformers device body insulation structure, including low-voltage coil and high-tension coil, low-voltage coil and high pressure
Coil is tubular；High-tension coil is sheathed on low-voltage coil；It is characterized in that, the outer cover of low-voltage coil is equipped with multiple tubulars
Oil duct stay curtain；Oil duct stay curtain is arranged between low-voltage coil and high-tension coil；Oil duct stay curtain includes support tube and multiple supports
Item, stay is arranged on the outer wall of support tube and is distributed along the axial direction of support tube, in the oil duct stay curtain of high-tension coil
Wall is equipped with soft corner-ring, and the insulating element of tubular is equipped between remaining oil duct stay curtain；Soft corner-ring includes cylindrical portion and two rings
The bending part of shape, two bending parts are respectively arranged on the both ends of cylindrical portion, and bending part is layed in the end of high-tension coil；Cylindrical portion and two
A bending part is integrally formed.
2. 35kV oil-immersed type transformers device body insulation structure as described in claim 1, which is characterized in that the thickness of support tube is
0.5mm。
3. 35kV oil-immersed type transformers device body insulation structure as claimed in claim 2, which is characterized in that the thickness of stay is 3-
5mm。
4. 35kV oil-immersed type transformers device body insulation structure as claimed in claim 3, which is characterized in that the spacing of adjacent stay
From for 30mm.
5. 35kV oil-immersed type transformers device body insulation structure as described in claim 1, which is characterized in that the thickness of cylindrical portion is
1.6mm。
6. 35kV oil-immersed type transformers device body insulation structure as described in claim 1, which is characterized in that the material of insulating element is
Point gummed paper.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721387128.3U CN207397916U (en) | 2017-10-25 | 2017-10-25 | 35kV oil-immersed type transformer device body insulation structures |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721387128.3U CN207397916U (en) | 2017-10-25 | 2017-10-25 | 35kV oil-immersed type transformer device body insulation structures |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207397916U true CN207397916U (en) | 2018-05-22 |
Family
ID=62330167
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721387128.3U Active CN207397916U (en) | 2017-10-25 | 2017-10-25 | 35kV oil-immersed type transformer device body insulation structures |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207397916U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112635175A (en) * | 2020-11-18 | 2021-04-09 | 上海置信电气非晶有限公司 | Insulating structure of amorphous alloy oil-immersed transformer body |
-
2017
- 2017-10-25 CN CN201721387128.3U patent/CN207397916U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112635175A (en) * | 2020-11-18 | 2021-04-09 | 上海置信电气非晶有限公司 | Insulating structure of amorphous alloy oil-immersed transformer body |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20200724 Address after: No.5 Xinjing East Road, South District, Zhangjiagang Economic and Technological Development Zone, Suzhou City, Jiangsu Province Patentee after: Shanghai Electric Group (Zhangjiagang) Transformer Co., Ltd Address before: 201400, Shanghai, Fengxian District Pu Pu Industrial Zone, Pu Pu Avenue, No. 6 Patentee before: SHANGHAI NANQIAO TRANSFORMER Co.,Ltd. |