CN201465771U - Epoxy resin casting autotransformer - Google Patents
Epoxy resin casting autotransformer Download PDFInfo
- Publication number
- CN201465771U CN201465771U CN2009201076498U CN200920107649U CN201465771U CN 201465771 U CN201465771 U CN 201465771U CN 2009201076498 U CN2009201076498 U CN 2009201076498U CN 200920107649 U CN200920107649 U CN 200920107649U CN 201465771 U CN201465771 U CN 201465771U
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- Prior art keywords
- autotransformer
- epoxy resin
- poured
- winding
- parallel
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Abstract
The utility model discloses an epoxy resin casting autotransformer. Two autotransformer windings connected in parallel and in an up-down arrangement are adopted; an iron core adopts a G-shaped clamping piece to enhance the intensity and bear the winding pressing force; the windings adopt up-down symmetrical and parallel outgoing lines, so that the generated electrodynamic force is reduced, the added loss is reduced, and the ampere turn distribution is balanced; and the windings adopt epoxy resin casting, the purposes of fouling resistance, salt spray resistance, high temperature resistance, and high humidity resistance are achieved.
Description
Technical field
The utility model relates to a kind of transformer, relates in particular to a kind of poured with epoxy resin autotransformer.
Background technology
The stability of power system voltage is to weigh an important indicator of the quality of power supply, voltage fluctuation is big, not only can influence the efficient and the life-span of electric equipment, and entail dangers to is to the safe and stable operation of system, even can causes that the partial electric grid collapse causes large area blackout.Adopt the autotransformer pressure regulation, can reduce the power supply unit volume, be equal under the volume of transformer, increase through-put power, improve the electrical network transmittability.
Autotransformer of the prior art all is to adopt oil-filled transformer, and common winding is placed on the inboard, and the pressure regulation winding is placed on the outside, is convenient to drawing of tap lead.
There is following shortcoming at least in above-mentioned prior art:
Adaptive capacity to adverse circumstances such as high temperature, high humidity, high salt fogs is poor.
The utility model content
The purpose of this utility model provides a kind of good poured with epoxy resin autotransformer of adaptive capacity to adverse circumstances such as high temperature, high humidity, high salt fogs.
The purpose of this utility model is achieved through the following technical solutions:
Poured with epoxy resin autotransformer of the present utility model comprises iron core, winding, and described winding comprises the autotransformer winding that two upper and lower layouts are connected in parallel, and described winding adopts poured with epoxy resin.
The technical scheme that is provided by above-mentioned the utility model as can be seen, poured with epoxy resin autotransformer described in the utility model, owing to adopt two autotransformer windings that upper and lower layout is connected in parallel, the electric power that produces reduces, winding can adopt poured with epoxy resin, can improve the adaptive capacity of transformer to adverse circumstances such as high temperature, high humidity, high salt fogs.
Description of drawings
Fig. 1 is the facade structures schematic diagram of the utility model poured with epoxy resin autotransformer;
Fig. 2 is the side structure schematic diagram of the utility model poured with epoxy resin autotransformer;
Fig. 3 is the planar structure schematic diagram of the utility model poured with epoxy resin autotransformer;
Fig. 4 is the structural representation of the folder in the utility model;
Fig. 5 is the structural representation of the cross section of the folder in the utility model.
Embodiment
Poured with epoxy resin autotransformer of the present utility model, the embodiment that it is preferable such as Fig. 1, Fig. 2, shown in Figure 3 comprise iron core 13, winding 11, described winding 11 comprises that two autotransformer winding of two upper and lower layouts is connected in parallel.
Two autotransformer windings that concrete two upper and lower layouts are connected in parallel, the upper and lower symmetric arrangement of input and output node of two winding, corresponding node is connected in parallel. and the autotransformer that 11 two of windings are connected in parallel adopts poured with epoxy resin to become an integral body, shows as a whole coil in form.
This transformer can be three-phase transformer, every independent iron core 13 and winding 11 of comprising mutually, and folder 12 clampings are adopted at the two ends of the iron core 13 of three-phase.Also can be single-phase transformer etc.
As Fig. 4, shown in Figure 5, the cross section of folder 12 is a groove shape structure.The opening of groove shape structure can curve inwardly and form G type groove shape structure.Can strengthen the intensity of folder 12.
Because poured with epoxy resin autotransformer short-circuit impedance is little, can produce very big short circuit current during short circuit.Adopt G type folder in the utility model, gain in strength, guarantee to bear the winding thrust; Winding adopts symmetrical outlet in parallel up and down, and the electric power of generation reduces, and lowers supplementary load loss, the ampere-turn distribution equilibrium.Make winding can adopt poured with epoxy resin, behind the winding cure and demold, can use cutter to remove the burr of molded coil while hot, and fine finishining be carried out on the surface with hand grinding tool; Thereby reduction electric field strength has reduced partial discharge, and partial discharge quantity can be controlled at below the 10pc.
The utility model is under the serious operating mode in coastal filthy area, high salt fog, high temperature, high humidity area, metal dust, and resistant is dirty, the ability height of salt spray resistance, high temperature resistant, anti-high humidity.
The above; it only is the preferable embodiment of the utility model; but protection range of the present utility model is not limited thereto; anyly be familiar with those skilled in the art in the technical scope that the utility model discloses; the variation that can expect easily or replacement all should be encompassed within the protection range of the present utility model.
Claims (5)
1. a poured with epoxy resin autotransformer comprises iron core, winding, it is characterized in that, described winding comprises the autotransformer winding that two upper and lower layouts are connected in parallel, and described winding adopts poured with epoxy resin.
2. poured with epoxy resin autotransformer according to claim 1 is characterized in that, this transformer is a three-phase transformer, every independent iron core and winding of comprising mutually, and the folder clamping is adopted at the two ends of the iron core of three-phase.
3. poured with epoxy resin autotransformer according to claim 2 is characterized in that, the cross section of described folder is a groove shape structure.
4. poured with epoxy resin autotransformer according to claim 3 is characterized in that, the opening of described groove shape structure curves inwardly and forms G type groove shape structure.
5. poured with epoxy resin autotransformer according to claim 1, it is characterized in that, the autotransformer winding that described two upper and lower layouts are connected in parallel comprises two input nodes, a plurality of output node respectively, and the input node of two windings and the upper and lower symmetric arrangement of output node, corresponding node is connected in parallel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201076498U CN201465771U (en) | 2009-05-05 | 2009-05-05 | Epoxy resin casting autotransformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201076498U CN201465771U (en) | 2009-05-05 | 2009-05-05 | Epoxy resin casting autotransformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201465771U true CN201465771U (en) | 2010-05-12 |
Family
ID=42393119
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009201076498U Expired - Fee Related CN201465771U (en) | 2009-05-05 | 2009-05-05 | Epoxy resin casting autotransformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201465771U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102226970A (en) * | 2011-04-09 | 2011-10-26 | 杭州日芝电气有限公司 | Large self-coupled dry-type transformer with multiple taps |
-
2009
- 2009-05-05 CN CN2009201076498U patent/CN201465771U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102226970A (en) * | 2011-04-09 | 2011-10-26 | 杭州日芝电气有限公司 | Large self-coupled dry-type transformer with multiple taps |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: WOLONG ELECTRIC GROUP BEIJING HUATAI TRANSFORMER C Owner name: WOLONG ELECTRIC GROUP CO., LTD. Free format text: FORMER OWNER: WOLONG ELECTRIC GROUP BEIJING HUATAI TRANSFORMER CO., LTD. Effective date: 20110908 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| C56 | Change in the name or address of the patentee |
Owner name: WOLONG ELECTRIC GROUP BEIJING HUATAI TRANSFORMER C Free format text: FORMER NAME: BEIJING HUATAI TRANSFORMER CO., LTD. |
|
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 102200 CHANGPING, BEIJING TO: 312300 SHAOXING, ZHEJIANG PROVINCE |
|
| CP01 | Change in the name or title of a patent holder |
Address after: 102200 Beijing city Changping District Bai Fu Road 17 Patentee after: WOLONG ELECTRIC GROUP BEIJING HUATAI TRANSFORMER Co.,Ltd. Address before: 102200 Beijing city Changping District Bai Fu Road 17 Patentee before: Beijing Huatai Transformer Co.,Ltd. |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20110908 Address after: 312300 Shangyu City, Shaoxing province people's Road West, No. 1801, No. Co-patentee after: WOLONG ELECTRIC GROUP BEIJING HUATAI TRANSFORMER Co.,Ltd. Patentee after: WOLONG ELECTRIC GROUP Co.,Ltd. Address before: 102200 Beijing city Changping District Bai Fu Road 17 Patentee before: WOLONG ELECTRIC GROUP BEIJING HUATAI TRANSFORMER Co.,Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100512 Termination date: 20180505 |