CN101989488A - Structure between high-tension coil and low-tension coil in transformer - Google Patents
Structure between high-tension coil and low-tension coil in transformer Download PDFInfo
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- CN101989488A CN101989488A CN2009100560727A CN200910056072A CN101989488A CN 101989488 A CN101989488 A CN 101989488A CN 2009100560727 A CN2009100560727 A CN 2009100560727A CN 200910056072 A CN200910056072 A CN 200910056072A CN 101989488 A CN101989488 A CN 101989488A
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Abstract
The invention relates to a structure between a high-tension coil and a low-tension coil in a transformer, which comprises a high-tension coil and a low-tension coil; an insulating paper board is arranged between the high-tension coil and the low-tension coil; the high-tension coil and the low-tension are of elliptic structures; and the high-tension coil, the low-tension coil and the insulating paper board are formed integrally. The structure between the high-tension coil and low-tension coil in the transformer provided by the invention has the advantages of decreasing the materials of iron cores, and reducing the no-load loss of the transformer.
Description
Technical field
The present invention relates to a kind of transformer, relate in particular to the structure between the high and low pressure coil in a kind of dry-type transformer.
Background technology
Transformer is a kind of static electrical equipment.Utilize electromagnetic induction principle between two or more coils, convert a kind of voltage and current of grade to voltage and current and electric energy transmitting with the another kind of grade of screen rate.
The circuit part of the coil constitution equipment of transformer itself, it directly is connected with outside electrical network, is most important parts in the transformer, often coil than " heart " of making transformer.
Coil is the basic element of character of transformer voltage of transformation, and coil is made up of the different numbers of turn, because every circle voltage of different coils is the same, therefore, need make coil that the different numbers of turn is arranged, and reaches different voltage.
Transformer is when operation, and by electric current, the loss that has a resistance in coil-conductor can cause the efficient of generating heat and reducing transformer in the coil.Coil uses the high metal of conductivity to make for this reason, and conductor commonly used is a copper.
As seen from Figure 1: since coil be circular, volume ratio is bigger, used copper material is many.The space that winding volume occupies greatly is also big, because coil is enclosed within on the core limb, the volume increase of coil also causes unshakable in one's determination the increase.
And the no-load performance of transformer core is one of main performance index of transformer.No-load performance comprises no-load loss, no-load current etc.The every index and the core volume of no-load performance unshakable in one's determination, design is made and core material has relation.
During transformer work, pass through the alternating flux of the sinusoidal variations identical in the iron core with the power supply panel rate.In the electrical steel sheet,, eddy current loss and magnetic hysteresis loss are arranged in silicon steel sheet by the alternating flux of sinusoidal variations.No-load loss is the loss in the lamination more than 99%.
No-load loss is calculated:
No-load loss=supplementary load loss coefficient * (specific loss+stem of stem and iron yoke and iron yoke weight)
Moreover high-voltage coil and low-voltage coil of the prior art separates, and is high-voltage coil and low-voltage coil is injected respectively in the mould, injects poured with epoxy resin and form in mould.When coil during at suit, high-tension coil is enclosed within the low-voltage coil outside, and convenient for suit, the gap between the high-voltage coil and low-voltage coil is bigger.Coil is oversize like this, and it is fine fastening to fail between high-tension coil and the low-voltage coil, and noise can be excessive when transformer moves.Among the figure: high-tension coil 1, insulating board 2, air flue rod 3, low-voltage coil 4.
How to reduce size unshakable in one's determination, just how designing a kind of loop construction is the problem that the technical staff will solve.
Summary of the invention
The technical issues that need to address of the present invention have provided the structure between the high and low pressure coil in a kind of transformer, are intended to solve the above problems.
In order to solve the problems of the technologies described above, the present invention is achieved by the following technical solutions:
The present invention includes: high-tension coil and low-voltage coil; Insulating board is between high-tension coil and low-voltage coil; The shape of high-tension coil and low-voltage coil is an oval structure; It between high-tension coil and insulating board and low-voltage coil and the insulating board integrally formed structure.
Compared with prior art, the invention has the beneficial effects as follows: reduce material unshakable in one's determination and also reduced transformer noload losses simultaneously.
Description of drawings
Fig. 1 is the loop construction schematic diagram of transformer in the prior art;
Fig. 2 is a structural representation of the present invention;
Fig. 3 is that Fig. 2 is placed in the schematic diagram on the frame.
Embodiment
Below in conjunction with accompanying drawing and embodiment the present invention is described in further detail:
As seen from Figure 2: the present invention includes: high-tension coil 10 and low-voltage coil 40; Insulating board 20 is between high-tension coil 01 and low-voltage coil 40; The shape of high-tension coil 10 and low-voltage coil 40 is oval structures; Be integrally formed structure between high-tension coil 10 and insulating board 20 and low-voltage coil 40 and the insulating board 20.
The present invention puts into same mould with high-tension coil and low-voltage coil, the injection ring epoxy resins formula coil that pours into an integrated entity in mould, and such method can make high-voltage coil and low-voltage coil tighten together, and reduces noise of transformer.And the volume-diminished of coil, winding volume is little, and it is little to occupy the space, so also can dwindle volume unshakable in one's determination, has also reduced transformer noload losses simultaneously at the material that reduces iron core.
With SCB9-630KVA/10KV is example, and the no-load loss of national Specification transformer is 53dB, and the improvement through us is modified into the ellipse coil to original round coil, can be reduced to 50dB to no-load loss and reach SCB10 series
The present invention has been dwindled the volume of coil, and original ellipse coil is made into the integral type coil, has dwindled the volume of coil like this, and the copper cash that coil is used is few.It is little to release winding volume according to the formula on background technology, and it is little to occupy the space, has also reduced transformer noload losses simultaneously at the material that reduces iron core like this, has reduced noise of transformer.
Claims (1)
1. the structure between the high and low pressure coil in the transformer comprises: high-tension coil and low-voltage coil; Insulating board is between high-tension coil and low-voltage coil; It is characterized in that: the shape of high-tension coil and low-voltage coil is an oval structure; It between high-tension coil and insulating board and low-voltage coil and the insulating board integrally formed structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100560727A CN101989488A (en) | 2009-08-07 | 2009-08-07 | Structure between high-tension coil and low-tension coil in transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100560727A CN101989488A (en) | 2009-08-07 | 2009-08-07 | Structure between high-tension coil and low-tension coil in transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101989488A true CN101989488A (en) | 2011-03-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009100560727A Pending CN101989488A (en) | 2009-08-07 | 2009-08-07 | Structure between high-tension coil and low-tension coil in transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101989488A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102800466A (en) * | 2011-05-23 | 2012-11-28 | 中变集团上海变压器有限公司 | Dry-type transformer with integrated coil structure |
| CN106373748A (en) * | 2016-11-17 | 2017-02-01 | 贵州栢通科技有限责任公司 | Small-sized dry-type transformer with high-pressure two-direction line outgoing |
-
2009
- 2009-08-07 CN CN2009100560727A patent/CN101989488A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102800466A (en) * | 2011-05-23 | 2012-11-28 | 中变集团上海变压器有限公司 | Dry-type transformer with integrated coil structure |
| CN106373748A (en) * | 2016-11-17 | 2017-02-01 | 贵州栢通科技有限责任公司 | Small-sized dry-type transformer with high-pressure two-direction line outgoing |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20110323 |