CN202058559U - Novel auxiliary winding of transformer and transformer - Google Patents
Novel auxiliary winding of transformer and transformer Download PDFInfo
- Publication number
- CN202058559U CN202058559U CN 201120152684 CN201120152684U CN202058559U CN 202058559 U CN202058559 U CN 202058559U CN 201120152684 CN201120152684 CN 201120152684 CN 201120152684 U CN201120152684 U CN 201120152684U CN 202058559 U CN202058559 U CN 202058559U
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- winding
- transformer
- phase windings
- windings
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Abstract
The utility model relates to a novel auxiliary winding of a transformer and the transformer. The utility model is characterized in that the novel auxiliary winding comprises four single-phase windings, wherein the four single-phase windings are divided into two groups which are respectively arranged on two iron leg yokes among three-phase main windings; one single-phase winding in each group is respectively used as a and c phases of the three-phase windings, the other two single-phase windings are connected in series and then are inversely used as a b phase; and the a, b and c phases are wound and connected into Y connection. The auxiliary winding of the utility model has the advantages of being simple in structure, being ingenious and reasonable in wiring, reducing the volume of a three-phase transformer product and saving manufacturing material of the transformer.
Description
Technical field
The utility model relates to a kind of auxiliary winding of transformer and the transformer with this novel auxiliary winding.
Background technology
The auxiliary winding of existing three-phase transformer generally is placed on the stem unshakable in one's determination, can constitute the auxiliary winding of three-phase.But the shortcoming of its existence is, the space that it takies main winding makes the height of core limb of three-phase transformer increase, and particularly the increase for the height of large-scale its core limb of transformer can make the cost of transformer improve undoubtedly.
The patent No. is that 200820134295 utility model patent discloses a kind of polysilicon convertor transformer, comprise former limit winding, secondary winding and iron core, described former limit winding is that triangle connects, described secondary winding is three windings of mutually insulated, includes the auxiliary winding that is used to provide the control power supply in the described secondary winding.Wherein auxiliary winding is as auxiliary winding with two taps in 5 taps of every phase secondary winding.Just, the auxiliary winding of this transformer is that tap draws from main winding, and it is the space that occupies main winding equally.Auxiliary winding with the layout that can influence main winding on the core limb that is located at main winding, is made transformer main winding ampere-turn imbalance, anti-short circuit capability is weakened.Also have main interior winding outlet of influence and insulation distance simultaneously, be unfavorable for going between and arrange, therefore, a kind of position that can either not occupy the transformer main winding can realize that again the auxiliary winding of transformer of three-phase output becomes the target of those skilled in the art's pursuit.
Summary of the invention
The purpose of this utility model is to solve that the auxiliary winding of transformer need occupy the main winding space in the prior art, influences main winding and arranges and then cause main winding ampere-turn imbalance, and increase the problem of transformer cost.
For solving the problems of the technologies described above, the technical solution of the utility model is: a kind of novel transformer is assisted winding, it is characterized in that: described auxiliary winding comprises four single-phase windings, described four single-phase windings are equally divided into two groups, be located at respectively on the iron yoke of the outer both sides of middle core limb of described transformer main winding, and a single-phase winding in described each group respectively as three phase winding a mutually and c mutually, anti-phase after other two single-phase windings in series as the b phase.
The utility model also provides a kind of transformer, and this transformer is a three-phase transformer, and it comprises: core limb, iron yoke, be located at the three-phase main winding A, B, the C that contain former limit winding and secondary winding on the core limb; It is characterized in that: it also has three-phase to assist winding, the auxiliary winding of this three-phase comprises four single-phase windings, described four single-phase windings are divided into two groups, be located at respectively on the iron yoke of the outer both sides of middle core limb of described transformer main winding, and a single-phase winding in described each group is anti-phase as the b phase after other two single-phase windings in series as three phase winding a, c phase.
Wherein, as preferably, the turn ratio of described four single-phase windings is 1:1:1:1.Can keep the three-phase voltage symmetry like this.
Wherein, as preferably, described a, b, c three phase windings are connected into y and connect.And the neutral point of described a, b, c three phase windings can be drawn the neutral line.
Wherein, as a kind of preferred, described each single-phase winding is to be made of on the same group unicoil or above unicoil series connection or parallel connection.
Auxiliary winding of the present utility model and transformer thereof are owing to adopt technique scheme, auxiliary winding is arranged on the iron yoke of transformer, thereby avoided occupying the space of main winding, simultaneously, by being set, 4 single-phase windings adopt the auxiliary winding of the three-phase of mode of connection realization cleverly, auxiliary output voltage is provided, can have satisfied demand with outdoor configuration power supply.The utility model also has following advantage: 1. adopt the technical solution of the utility model, can reduce the space that auxiliary winding takies main winding, and can form three phase windings, so small product size reduces to some extent, saved material.2. employing the utility model can be avoided auxiliary winding to influence main winding and arrange, makes transformer main winding ampere-turn equilibrium, has strengthened anti-short circuit capability.3. employing the utility model can be avoided main interior winding outlet of auxiliary winding influence and insulation distance, and it is more convenient that lead-in wire is arranged.The utlity model has simple in structurely, wiring is ingenious rationally, has reduced significantly and will assist winding to be located at cost in the main winding.
Description of drawings
Fig. 1 is the structural representation of transformer embodiment one described in the utility model.
Fig. 2 is the winding diagram of auxiliary winding embodiment one described in the utility model.
Fig. 3 is the winding diagram of described auxiliary winding embodiment two of the present utility model.
Fig. 4 is the structural representation of the embodiment three of transformer described in the utility model.
Fig. 5 is the winding diagram of auxiliary winding embodiment three described in the utility model.
Embodiment
Embodiment one, referring to Fig. 1,2, showed transformer described in the utility model among the figure, referring to Fig. 1, A, B, C are the three-phase main windings of transformer among the figure, three-phase main winding A, B, C are located at respectively on the core limb 11, and the upper/lower terminal of core limb 11 is iron yoke 12 and iron yoke 10, and transformer of the present utility model also contains auxiliary winding.Inventive point of the present utility model is: described auxiliary winding is provided in a side of on the iron yoke, in the present embodiment, be provided in a side of on the iron yoke 10, this auxiliary winding comprises 4 single-phase auxiliary windings 1,2,3,4, its turn ratio is: 1:1:1:1 is divided into two groups: single-phase winding 1,2 and single-phase winding 3,4.The core limb 11 that is positioned at the centre position is divided into left iron leg yoke 101 and right iron leg yoke 102 with iron yoke 10, and two single-phase auxiliary winding 1,2 is arranged on the left iron leg yoke 101 between three-phase main winding A, the B; On the right iron leg yoke 102 between three-phase main winding B, the C, be provided with two single-phase auxiliary winding 3,4.As shown in Figure 2, wherein single-phase auxiliary winding 1 is as a phase, and anti-phase as b after auxiliary winding 2 is connected with 3, auxiliary winding 4 is the c phase, and referring to Fig. 2, a, b, c three phase windings are connected into y and connect, and have so just formed three phase windings, and neutral point o can draw.
Obviously, after four single-phase windings in the present embodiment are divided into two groups, on the iron yoke 12 of core limb both sides, promptly single-phase winding 1,2 can be located on the left iron leg yoke 121 of iron yoke 12 in the middle of can also being located at respectively, and single-phase winding 3,4 can be located on the right iron leg yoke 122.In fact, as long as 4 single-phase windings are divided into two groups, are located at respectively on the left iron leg yoke that separates with middle core limb and the right iron leg yoke and get final product.Respectively establish a single-phase winding on the left iron leg yoke 121,101 between also can main winding A, B, respectively establish a single-phase winding on the right iron leg yoke 122,102 between main winding B, the C.To assist winding to be located at the wiring of being more convenient on iron yoke 10 or 12 simultaneously.
Embodiment two, referring to Fig. 3, different with a last embodiment is: provided the another kind of mode of connection of auxiliary winding among the figure, promptly adopted delta connection: with a, b, the end to end one-tenth closed form of c three phase windings, and anti-phase formation after wherein b is also connected with 3 by auxiliary winding 2 mutually.
Embodiment three, referring to Fig. 4,5, provided another kind of execution mode among the figure, with embodiment one difference be: auxiliary winding described in the utility model is to be made of 8 coils 1,2,3,4,5,6,7,8, and four single-phase auxiliary windings promptly described in the utility model constitute by two coils (1,2), (3,4), (5,6), (7,8).8 coils of present embodiment are divided into two groups (1,2,3,4), (5,6,7,8) are located at respectively on left iron leg yoke 101,121 and the right iron leg yoke 102,122, as shown in Figure 5: two coils, 1,2 series connection that are positioned on the left iron leg yoke 121 constitute a phase, two coils, 7,8 series connection that are positioned on the right iron leg yoke 122 constitute the c phase, pitch of the laps 3 in remaining two groups and pitch of the laps 4 are located on the left iron leg yoke 101 and series connection earlier, pitch of the laps 5 and 6 is positioned on the right iron leg yoke 102 series connection earlier, again with the coil 3,4 after two groups of series connection and coil 5,6 anti-phase formation b mutually.
Above embodiment describes the utility model, but not do restrictive summary, the utility model aims to provide a kind of auxiliary winding of transformer and has the transformer of this auxiliary winding, it mainly is auxiliary winding is made of four single-phase windings and is located on the iron yoke of transformer, realizes the auxiliary winding of three-phase by wiring cleverly.Those of ordinary skills are under the guidance of inventive concept of the present utility model, can also make modification and replacement on a lot of conventional structures, for example: each single-phase winding is done a plurality of taps, thereby obtain different output valves, what perhaps change four single-phase windings changes into the diagonal angle setting into: two in the upper left corner, two in the lower right corner.These are revised with replacement and also should be considered to belong among the protection range of the present utility model.
Claims (10)
1. a novel transformer is assisted winding, it is characterized in that: described auxiliary winding comprises four single-phase windings, described four single-phase windings are equally divided into two groups, be located at respectively on the iron yoke of the outer both sides of middle core limb of described transformer main winding, and a single-phase winding in described each group respectively as three phase winding a mutually and c mutually, anti-phase after other two single-phase windings in series as the b phase.
2. novel transformer according to claim 1 is assisted winding, and it is characterized in that: the turn ratio of described four single-phase windings is 1:1:1:1.
3. according to claim 1 or the auxiliary winding of 2 described novel transformers, it is characterized in that: described a, b, c three phase windings are connected into y and connect.
4. according to the auxiliary winding of the described novel transformer of claim 3, it is characterized in that: the neutral point of described a, b, c three phase windings is drawn the neutral line.
5. novel transformer according to claim 1 and 2 is assisted winding, it is characterized in that: described each single-phase winding is to be made of on the same group unicoil or above unicoil series connection or parallel connection.
6. transformer, this transformer is a three-phase transformer, it comprises: core limb, iron yoke, be located at the three-phase main winding that contains former limit winding and secondary winding (A, B, C) on the core limb; It is characterized in that: described transformer comprises that also three-phase assists winding, the auxiliary winding of this three-phase comprises four single-phase windings, described four single-phase windings are divided into two groups, be located at respectively on the iron yoke of the outer both sides of middle core limb of described transformer main winding, and a single-phase winding in described each group respectively as three phase winding a mutually and c mutually, anti-phase after other two single-phase windings in series as the b phase.
7. transformer according to claim 6 is characterized in that: the turn ratio of described four single-phase windings is 1:1:1:1.
8. according to claim 6 or 7 described transformers, it is characterized in that: described a, b, c three phase windings are connected into y and connect.
9. transformer according to claim 8 is characterized in that: the neutral point of described a, b, c three phase windings is drawn the neutral line.
10. according to claim 6 or 7 described transformers, it is characterized in that: described each single-phase winding is to be made of on the same group unicoil or above unicoil series connection or parallel connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120152684 CN202058559U (en) | 2011-05-13 | 2011-05-13 | Novel auxiliary winding of transformer and transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120152684 CN202058559U (en) | 2011-05-13 | 2011-05-13 | Novel auxiliary winding of transformer and transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202058559U true CN202058559U (en) | 2011-11-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201120152684 Expired - Lifetime CN202058559U (en) | 2011-05-13 | 2011-05-13 | Novel auxiliary winding of transformer and transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202058559U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102779624A (en) * | 2011-05-13 | 2012-11-14 | 新华都特种电气股份有限公司 | Novel auxiliary winding of transformer |
-
2011
- 2011-05-13 CN CN 201120152684 patent/CN202058559U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102779624A (en) * | 2011-05-13 | 2012-11-14 | 新华都特种电气股份有限公司 | Novel auxiliary winding of transformer |
| CN102779624B (en) * | 2011-05-13 | 2015-04-22 | 新华都特种电气股份有限公司 | Novel auxiliary winding of transformer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20111130 Effective date of abandoning: 20150422 |