CN203192584U - Concentric type traction transformer with four coaxial split windings - Google Patents
Concentric type traction transformer with four coaxial split windings Download PDFInfo
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- CN203192584U CN203192584U CN 201320165668 CN201320165668U CN203192584U CN 203192584 U CN203192584 U CN 203192584U CN 201320165668 CN201320165668 CN 201320165668 CN 201320165668 U CN201320165668 U CN 201320165668U CN 203192584 U CN203192584 U CN 203192584U
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Abstract
The utility model discloses a concentric type traction transformer with four coaxial split windings. The fully-split structural mode that the four primary side windings correspond to secondary side windings respectively is adopted, the three-phase concentric type traction transformer with the four coaxial split windings is totally provided with twelve primary side windings and twelve secondary side windings, and all the primary side windings and all the secondary side windings are arranged in an axial direction. The concentric type traction transformer has the advantages that due to the fact that the fully-split structure is adopted in the four windings, the secondary side windings are less mutually affected, decoupling is good, and all the secondary side winding can independently work and can work simultaneously; the transformer is suitable for being made into a high-impedance transformer, and is remarkable in the functions of limiting short-circuit currents and eliminating harmonic filtering; compared with four independent transformers or two transformers with two split windings, the transformer has the advantages of being small in size, small in occupied area and low in manufacturing cost.
Description
Technical field
The utility model relates to the axial quadripartion traction transformer of a kind of concentric type.
Background technology
Common single-phase traction transformer as shown in Figure 3.
Development along with the development of current various technology, particularly Semiconductor Converting Technology.Transformer is proposed many higher requirements again, and for example it requires a transformer power for several loads simultaneously, and requires can not interfere with each other between each load, and after the isolation, other load can also operate as normal even a load is broken down.In addition some occasion it also require transformer that higher impedance is arranged, reaching the effect of limiting short-circuit current and harmonic elimination filtering, and require under the high impedance condition between each load winding decoupling zero to get well, the impedance unbalance degree between each winding is little.
And existing transformer can't satisfy above-mentioned requirements.
The utility model content
Technical problem to be solved in the utility model provides the axial quadripartion traction transformer of a kind of concentric type, the axial quadripartion traction transformer of this concentric type structure is ingenious, secondly the limit winding can work alone, can work simultaneously again, transformer has that volume is little, floor space is little, advantage of low manufacturing cost.
The technical solution of utility model is as follows:
The axial quadripartion traction transformer of a kind of concentric type comprises iron core and winding, and described iron core is for comprising at least 2 single iron core column; Each single iron core column is provided with 4 covers (namely 4 layers) along the winding of the axially-aligned of single iron core column, and every suit winding is formed with the inferior limit winding that is in the outside by being in inboard former limit winding; And 4 former limit winding parallel connections.
Described single iron core column is 2, and the axial quadripartion traction transformer of concentric type of this moment is the single-phase type transformer, and about every layer post coil serial or parallel connection forms a former time independent limit winding, forms 4 pairs of former limit windings vertically altogether.
Described single iron core column is 3, and the axial quadripartion traction transformer of concentric type of this moment is the three-phase type transformer, and every layer of three post coil form A B C three-phase, form 4 pairs of former limit windings vertically altogether.
Described former limit winding is high pressure winding or low pressure winding.
Dual low voltage transformer is a kind of special shape in the multi winding transformer, is with common multi winding transformer difference: its inferior limit winding splits into several branch roads, and these several branch roads do not have the contact on electric, and more weak magnetic coupling is only arranged.This transformer with split winding has following characteristics: 1, owing to adopt i.e. four corresponding four the limit windings of former limit winding difference of full splitted construction, impedance between four time limit windings is very big, so the influence mutually is also smaller, the winding decoupling zero of inferior limit is better, if after the load of one of them time limit winding was broken down and isolated, other windings can also continue operation; 2, limiting short-circuit current and harmonic elimination filter action are remarkable; 3, have with respect to the two transformer with split windings of four independent transformers or two that volume is little, floor space is little, advantage of low manufacturing cost.Dual low voltage transformer just is widely adopted in power industry, along with some other industrial rise, as current transformer technology, photovoltaic technology etc., the dual low voltage transformer range of application is more and more wider, also more and more to dual low voltage transformer low pressure winding quantity demand simultaneously, be subjected to the limitation of design of transformer, domestic dual low voltage transformer is based on two transformer with split windings.
Beneficial effect:
The axial quadripartion traction transformer of concentric type of the present utility model, adopt full splitted construction form (being the respectively corresponding limit winding of four former limits of transformer winding), the axial quadripartion traction transformer of three-phase concentric type has 12 former limit windings and 12 limit windings, and all former limit windings divide arrangement vertically.
This transformer has following characteristics:
1, because four windings adopt full splitted construction, so the winding influence each other of each time limit is smaller, decoupling zero is better, each time limit winding can work alone, and can work simultaneously again; It is good that it has a winding decoupling zero of inferior limit, can not influenced by other winding by independent operating.
Because the division impedance between four time limit windings is very big, there is not the contact on electric each other, weak magnetic coupling is only arranged, so decoupling zero is better between them, reciprocal influence is also smaller, each winding can work alone and can work simultaneously.If one of them time limit winding load is broken down, other winding can also continue operation, and this is that common transformer can't be accomplished.
2, this kind transformer is fit to make high-impedance transformer, and is remarkable to limiting short-circuit current and harmonic elimination filter action;
Because this transformer is realized high impedance easily, axial distribution four windings, in order to reduce the whole height of transformer, usually coil is made flatly, be easy to increase the fabric width degree of coil, namely increased the leakage field area of coil, improved the impedance of coil, have very that high impedance also is one of characteristics of traction transformer, because the transformer impedance height is remarkable to the effect of limiting short-circuit current and harmonic elimination filtering, increased the ability of Short Circuit withstand electric current of traction transformer and the ability of harmonic elimination filtering greatly.
3, have with respect to the two transformer with split windings of four independent transformers or two that volume is little, floor space is little, advantage of low manufacturing cost.
When a plurality of if desired windings are supplied with a plurality of load in actual applications, lead to the method cost of transformer than higher with many Daeporis, it is big that floor space is also wanted, adopt the axial quabernary fission depressor of concentric type just can substitute the logical transformer work of four Daeporis, saving construction investment and floor space has certain real economy meaning.Particularly comparatively nervous applications has very big economic implications in the work-yard.
Domestic pair of transformer with split winding is many at present, the beyond example reference in design of quabernary fission depressor, and existing transformer theoretical research does not relate to the quabernary fission depressor yet.
The axial quabernary fission depressor of concentric type is different from axially two transformer with split windings, two transformer with split windings are because axially only distributed two windings, the impedance of these two windings can be consistent, but complicated Distribution of Magnetic Field can't guarantee symmetry division fully between axial four pairs of former windings of the axial quabernary fission depressor of concentric type, each time limit winding is also different with former limit winding and their degree of coupling each other, so impedance just has bigger difference when four pairs of windings are worked simultaneously.The different width of cloth by adjusting four windings in the axial quadripartion is to width, the different height of coil, particularly adjust the position of axial four windings etc., to guarantee four pairs of winding impedance basically identicals, make traction transformer need the special occasions of impedance operator unanimity also can use at some.
Description of drawings
Fig. 1 is the axial quadripartion traction transformer of three-phase concentric type (profile);
Fig. 2 is the axial quadripartion traction transformer of single-phase concentric type (profile);
Fig. 3 is single-phase common transformer (profile);
Label declaration: 1: limit winding for the first time, 2: the first former limit windings, 3: limit winding for the second time, 4: the second former limit windings, 5: limit winding for the third time, 6: the three former limit windings, 7: the four times limit windings, 8: the four former limit windings, 9: iron core, the single iron core column of 10-.
Embodiment
Below with reference to the drawings and specific embodiments the utility model is described in further details:
Embodiment 1:
Shown in Fig. 1-2, the axial quadripartion traction transformer of a kind of concentric type comprises iron core and winding, and described iron core is for comprising at least 2 single iron core column; Each single iron core column is provided with 4 covers (namely 4 layers) along the winding of the axially-aligned of single iron core column, and every suit winding is formed with the inferior limit winding that is in the outside by being in inboard former limit winding; And 4 former limit winding parallel connections.
Described single iron core column is 2, and the axial quadripartion traction transformer of concentric type of this moment is the single-phase type transformer, and about every layer post coil serial or parallel connection forms a former time independent limit winding, forms 4 pairs of former limit windings vertically altogether.
Described single iron core column is 3, and the axial quadripartion traction transformer of concentric type of this moment is the three-phase type transformer, and every layer of three post coil form A B C three-phase, form 4 pairs of former limit windings vertically altogether.
Described former limit winding is high pressure winding or low pressure winding.
The axial quadripartion traction transformer of concentric type is compared the arrangement mode different fully (Fig. 1 Fig. 2 and Fig. 3 compare) of coil with common transformer, thereby also be different from common transformer in design fully, also because making the axial quadripartion traction transformer of concentric type have the decoupling zero ability between each winding in this kind version, big resistance capabilities and anti-short circuit capability.
Three-phase or single-phase transformer single-column winding 1-2 as shown are arranged on the iron core 9, form the axial quabernary fission depressor of concentric type version.The a certain parameter that further specifies this transformer at the axial quadripartion traction transformer of concentric type of subway design is as follows:
Capacity: 3000KVA
Former limit rated voltage: 10000V
Former limit rated current: 173.21A
Inferior limit rated voltage: 4 * 950V
Inferior limit rated current: 4 * 456A
Impedance: 38%.
Claims (3)
1. the axial quadripartion traction transformer of concentric type comprises iron core and winding, it is characterized in that, described iron core is for comprising at least 2 single iron core column; Each single iron core column is provided with 4 covers along the winding of the axially-aligned of single iron core column, and every suit winding is formed with the inferior limit winding that is in the outside by being in inboard former limit winding; And 4 former limit winding parallel connections.
2. the axial quadripartion traction transformer of concentric type according to claim 1, it is characterized in that, described single iron core column is 2, the axial quadripartion traction transformer of concentric type of this moment is the single-phase type transformer, every layer of left and right sides post coil serial or parallel connection forms a former time independent limit winding, forms 4 pairs of former limit windings vertically altogether.
3. the axial quadripartion traction transformer of concentric type according to claim 1, it is characterized in that described single iron core column is 3, the axial quadripartion traction transformer of concentric type of this moment is the three-phase type transformer, every layer of three post coil form A B C three-phase, form 4 pairs of former limit windings vertically altogether.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320165668 CN203192584U (en) | 2013-04-03 | 2013-04-03 | Concentric type traction transformer with four coaxial split windings |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320165668 CN203192584U (en) | 2013-04-03 | 2013-04-03 | Concentric type traction transformer with four coaxial split windings |
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| Publication Number | Publication Date |
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| CN203192584U true CN203192584U (en) | 2013-09-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320165668 Expired - Fee Related CN203192584U (en) | 2013-04-03 | 2013-04-03 | Concentric type traction transformer with four coaxial split windings |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103151153A (en) * | 2013-04-03 | 2013-06-12 | 株洲市科达电机技术有限公司 | Concentric type axial four-division traction transformer and realization method thereof |
| CN105810421A (en) * | 2016-04-22 | 2016-07-27 | 中国船舶重工集团公司第七〇二研究所 | Single-phase ten-split high-impedance traction transformer |
| CN109686542A (en) * | 2018-12-06 | 2019-04-26 | 中铁电气化局集团有限公司 | A kind of energy-economic transformer |
-
2013
- 2013-04-03 CN CN 201320165668 patent/CN203192584U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103151153A (en) * | 2013-04-03 | 2013-06-12 | 株洲市科达电机技术有限公司 | Concentric type axial four-division traction transformer and realization method thereof |
| CN103151153B (en) * | 2013-04-03 | 2014-09-10 | 株洲市科达电机技术有限公司 | Concentric type axial four-division traction transformer and realization method thereof |
| CN105810421A (en) * | 2016-04-22 | 2016-07-27 | 中国船舶重工集团公司第七〇二研究所 | Single-phase ten-split high-impedance traction transformer |
| CN105810421B (en) * | 2016-04-22 | 2017-12-15 | 中国船舶重工集团公司第七一二研究所 | A kind of single-phase ten divisions high impedance tractive transformer |
| CN109686542A (en) * | 2018-12-06 | 2019-04-26 | 中铁电气化局集团有限公司 | A kind of energy-economic transformer |
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| 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: 20130911 Termination date: 20180403 |
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| CF01 | Termination of patent right due to non-payment of annual fee |