CN203338926U - Novel screw type winding for transformer - Google Patents
Novel screw type winding for transformer Download PDFInfo
- Publication number
- CN203338926U CN203338926U CN2013204282313U CN201320428231U CN203338926U CN 203338926 U CN203338926 U CN 203338926U CN 2013204282313 U CN2013204282313 U CN 2013204282313U CN 201320428231 U CN201320428231 U CN 201320428231U CN 203338926 U CN203338926 U CN 203338926U
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- winding
- oil duct
- screw type
- insulating oil
- type winding
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Abstract
The utility model relates to a novel screw type winding for a transformer, and belongs to the technical field of transformers. According to the technical scheme, the novel screw type winding comprise paper-wrapped flat wires (11), a longitudinal insulating oil duct (12), an insulating oil duct (13) and end insulators (14). A cushion block is not arranged between screw type winding cakes. The longitudinal insulating oil duct is arranged in the middle of the screw type winding cakes in the axial direction of the screw type winding and is consistent with oil flow in direction. The longitudinal insulating oil duct is slightly lower than the overall screw type winding. According to the novel screw type winding for the transformer, the advantages of a layered winding are applied to a traditional screw type winding, and uniform position change of the novel screw type winding is realized through an assumed strut; about 6-8% of the weight of electrical steel of the transformer can be effectively reduced; meanwhile, due to the fact that the axial height of the novel screw type winding is reduced, about 6-8% of the material consumption of transformer oil and steel plates also can be reduced accordingly; besides, due to the fact that the diameter of a high-voltage winding and the diameter of a low-voltage winding are reduced, the weight of copper consumed by the novel screw type winding is reduced accordingly by 7-10%.
Description
Technical field
The utility model relates to a kind of transformer novel screw type winding, and the coiling for single-screw, double helix, four spiral windings, belong to the transformer technology field.
Background technology
At present, the transformer Helical winding is to be formed by many strip conductors lap wound in parallel, between adjacent turns, with cushion block, separates, and each cake is a circle.Because this winding mechanical stability is high, heat-sinking capability strong, good manufacturability, so generally be adopted as the pressure regulation winding of low-voltage, large electric current winding and on-load tap-changing transformer.According to the size of electric current in winding, Helical winding can be divided into several forms such as single-screw, double helix and four spirals.But, because the use of cushion block between cake has increased axial height and the inside and outside limit size of winding, the raising of transformer window usage factor is had to larger negative effect.
The utility model content
The purpose of this utility model is to provide a kind of transformer novel screw type winding, removes the cushion block between the Helical winding cake, effectively reduces the axial height of winding, solves the problems referred to above that background technology exists.
The technical solution of the utility model is:
A kind of transformer novel screw type winding, comprise flat wire with paper wrapped, vertically insulating oil duct, insulating oil duct and end insulation, an above flat wire with paper wrapped lap wound in parallel becomes the Helical winding cake, each Helical winding cake is a circle, the centre position of Helical winding cake arranges vertical insulating oil duct, vertically insulating oil duct is arranged on the axial direction of Helical winding, and consistent with the direction of oil stream, vertically the height of insulating oil duct is slightly less than the height of whole Helical winding.
Vertically insulating oil duct adopts the sticky strip cushion block of cable paper to form, and the strip cushion block is with together coiling of Helical winding; Two ends of described Helical winding are provided with the end insulation, and the end insulation is provided with insulating oil duct, and insulating oil duct is communicated with vertical insulating oil duct.
Described Helical winding does not have stay, increase object of reference during the Helical winding transposition, when the Helical winding coiling, first be wound around the last layer cable paper on winding former, draw uniformly imaginary stay position on cable paper, during coiling, according to imaginary stay position, the rule of conversion by Helical winding evenly replaces to winding, realizes effectively reducing the purpose of circulation loss.
Described above flat wire with paper wrapped lap wound in parallel becomes the Helical winding cake, comprises that the coiling of single flat wire with paper wrapped single-screw is that single-screw winding, the coiling of two flat wire with paper wrapped double helixs are that double helix winding, four flat wire with paper wrapped four helically coilings are four spiral windings.
Described vertical insulating oil duct also can adopt the sticky insulation strip of thin insulating cardboard to form when vertical insulating oil duct size is larger.
Good effect of the present utility model: the utility model applies to traditional Helical winding by the advantage of laminar winding, and utilizes imaginary stay mode to realize the even transposition problem of winding; Can effectively reduce 6～8% left and right of transformer core silicon steel weight; Simultaneously because the axis of winding height reduces, can also corresponding minimizing transformer oil and material consumption 6～8% left and right of steel plate; The high and low pressure winding is because diameter reduces the corresponding minimizing 7～10% of winding consumption weight of copper simultaneously.
The accompanying drawing explanation
Fig. 1 is the utility model example structure schematic diagram;
In figure: flat wire with paper wrapped 11, vertically insulating oil duct 12, insulating oil duct 13 and end insulation 14.
Embodiment
Below in conjunction with accompanying drawing, by embodiment, the utility model is described further.
A kind of transformer novel screw type winding, comprise flat wire with paper wrapped 11, vertically insulating oil duct 12, insulating oil duct 13 and end insulation 14, an above flat wire with paper wrapped lap wound in parallel becomes the Helical winding cake, each Helical winding cake is a circle, cushion block is not set between the Helical winding cake, effectively reduce the axial height of whole Helical winding, the centre position of Helical winding cake arranges vertical insulating oil duct, solves Helical winding because removing the heat dissipation problem after cushion block; Vertically insulating oil duct is arranged on the axial direction of Helical winding, consistent with the direction of oil stream, improves radiating efficiency, and vertically the height of insulating oil duct is slightly less than the height of whole Helical winding; Vertically insulating oil duct adopts the sticky strip cushion block of cable paper to form, and the strip cushion block, with together coiling of Helical winding, makes it run through whole Helical winding height, and heat radiation oil duct is unimpeded; Two ends of described Helical winding are provided with the end insulation, and the end insulation is provided with insulating oil duct, and insulating oil duct is communicated with vertical insulating oil duct.
Described Helical winding does not have stay, increase object of reference during the Helical winding transposition, when the Helical winding coiling, first be wound around the last layer cable paper on winding former, draw uniformly imaginary stay position on cable paper, during coiling, according to imaginary stay position, the rule of conversion by Helical winding evenly replaces to winding, realizes effectively reducing the purpose of circulation loss.
Winding method of the present utility model:
1. described Helical winding does not have stay, increase object of reference during the Helical winding transposition, when the Helical winding coiling, first be wound around the last layer cable paper on winding former, draw uniformly imaginary stay position on cable paper, during coiling, according to imaginary stay position, the rule of conversion by Helical winding evenly replaces to winding;
2. an above flat wire with paper wrapped lap wound in parallel becomes the Helical winding cake, and each Helical winding cake is a circle; Cushion block is not set between the Helical winding cake, effectively reduces the axial height of whole Helical winding, the centre position of Helical winding cake arranges vertical insulating oil duct, solves Helical winding because removing the heat dissipation problem after cushion block; Vertically insulating oil duct is arranged on the axial direction of Helical winding, consistent with the direction of oil stream, improves radiating efficiency, and vertically the height of insulating oil duct is slightly less than the height of whole Helical winding; Vertically insulating oil duct adopts the sticky strip cushion block of cable paper to form, and the strip cushion block, with together coiling of Helical winding, makes it run through whole Helical winding height, and heat radiation oil duct is unimpeded;
3. two of described Helical winding ends are provided with the end insulation, and the end insulation is provided with insulating oil duct, and insulating oil duct is communicated with vertical insulating oil duct.
Claims (3)
1. a transformer novel screw type winding, it is characterized in that: comprise flat wire with paper wrapped (11), vertically insulating oil duct (12), insulating oil duct (13) and end insulation (14), an above flat wire with paper wrapped lap wound in parallel becomes the Helical winding cake, each Helical winding cake is a circle, the centre position of Helical winding cake arranges vertical insulating oil duct, vertically insulating oil duct is arranged on the axial direction of Helical winding, consistent with the direction of oil stream, vertically the height of insulating oil duct is slightly less than the height of whole Helical winding.
2. a kind of transformer novel screw type winding according to claim 1 is characterized in that: vertically insulating oil duct adopts the sticky strip cushion block of cable paper to form, and the strip cushion block is with together coiling of Helical winding; Two ends of described Helical winding are provided with the end insulation, and the end insulation is provided with insulating oil duct, and insulating oil duct is communicated with vertical insulating oil duct.
3. a kind of transformer novel screw type winding according to claim 1, it is characterized in that: described above flat wire with paper wrapped lap wound in parallel becomes the Helical winding cake, comprises that the coiling of single flat wire with paper wrapped single-screw is that single-screw winding, the coiling of two flat wire with paper wrapped double helixs are that double helix winding, four flat wire with paper wrapped four helically coilings are four spiral windings.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013204282313U CN203338926U (en) | 2013-07-19 | 2013-07-19 | Novel screw type winding for transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013204282313U CN203338926U (en) | 2013-07-19 | 2013-07-19 | Novel screw type winding for transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203338926U true CN203338926U (en) | 2013-12-11 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013204282313U Expired - Fee Related CN203338926U (en) | 2013-07-19 | 2013-07-19 | Novel screw type winding for transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203338926U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103337343A (en) * | 2013-07-19 | 2013-10-02 | 保定天威集团有限公司 | Novel spiral winding for transformer and winding method thereof |
-
2013
- 2013-07-19 CN CN2013204282313U patent/CN203338926U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103337343A (en) * | 2013-07-19 | 2013-10-02 | 保定天威集团有限公司 | Novel spiral winding for transformer and winding method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131211 Termination date: 20140719 |
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| EXPY | Termination of patent right or utility model |