CN104538161A - A body structure of AT power roll-core autotransformer - Google Patents
A body structure of AT power roll-core autotransformer Download PDFInfo
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- CN104538161A CN104538161A CN201410517251.7A CN201410517251A CN104538161A CN 104538161 A CN104538161 A CN 104538161A CN 201410517251 A CN201410517251 A CN 201410517251A CN 104538161 A CN104538161 A CN 104538161A
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- iron core
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- autotransformer
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- body structure
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Abstract
A body structure of an AT power roll-core autotransformer relates to a body of a transformer. Insulation strength, an overload ability, an anti-short circuit ability, a high loss, etc. of a conventional autotransformer body structure cannot meet requirements of an electric railway. An iron core of the body structure of the AT power roll-core autotransformer is a single frame closed roll core structure, vertical columns of the iron core are iron core columns, and horizontal columns of the iron core are iron yokes. A plurality of concentric coils are wound around each iron core column, and upper and lower ends of each coil are both provided with insulation end rings. A lower end of a lower insulation end ring and an upper end of an upper insulation end ring are both provided with iron yoke insulation plates. Pressing devices are disposed on the upper iron yoke insulation plate, and integrally press the coil, the insulation end ring, and the iron core as a whole. The present technical solution uses the body structure of the roll-core autotransformer to enhance the insulation property and heat dispersion property, to improve the overload ability and the anti-short circuit ability of the transformer, to reduce the loss value of the transformer, and to meet the special requirements of the electric railway.
Description
Technical field
The present invention relates to a kind of transformer body.
Background technology
Along with the development of electric railway, particularly at a high speed and the fast development of heavy haul railway, AT supply power mode gets the nod and affirms, AT autotransformer of powering develops rapidly.In order to meet the high overload of speed rail traction circuit, frequent short circuit, Low ESR, low-loss requirement.Conventional autotransformer machine body structure is due to the restriction in design, and dielectric strength, capability of overload, anti-short circuit capability and high loss etc. are difficult to the requirement meeting electric railway.
Summary of the invention
The technical assignment of the technical problem to be solved in the present invention and proposition carries out improving to prior art and improves, there is provided a kind of AT to power and roll up iron core autotransformer machine body structure, while reaching and carrying and establish dielectric strength, the overload had, Short Circuit withstand, low-loss object.For this reason, the present invention takes following technical scheme.
A kind of AT powers and rolls up iron core autotransformer machine body structure, comprise iron core, coil, insulating part and hold down gag, it is characterized in that: described iron core is single frame closed volume core structure, the vertical posts of iron core is iron core column, the transverse post of iron core is iron yoke, the multiple concentric coil of one iron core column coiling, the two ends up and down of each coil are equipped with insulating end ring, the lower end of lower insulating end ring and the upper end of upper insulating end ring are equipped with core insulation plate, described upper yoke insulation board is provided with described hold down gag, described hold down gag is by coil, insulating end ring, iron core compresses in aggregates.
As improving further and supplementing technique scheme, the present invention also comprises following additional technical feature.
Described iron core is the rounded or oval closing structure iron core in the cross section that rolled by silicon steel sheet, and described iron core is provided with band iron core column or iron yoke radial direction to be tied up.
One iron core column is provided with four ceoncentrically wound coils, is provided with insulating part, is provided with insulating part between described iron core column and coil between the adjacent windings being coated at same iron core column; The two ends of four ceoncentrically wound coils are provided with four corresponding insulating end rings, and outer end and a core insulation plate of four insulating end rings are inconsistent.Difference coiling four coils on two core limbs, connection in series or in parallel with each other between eight coils, realizes autotransformer connection mode.
Described coil is that width is to splitted construction.
Described hold down gag is multiple disc spring nail pressings, and described upper yoke upper surface establishes insulation to be provided with described disc spring nail pressing.
Beneficial effect: AT powers and rolls up the machine body structure of iron core autotransformer, strengthens insulation property and heat dispersion, and the capability of overload and the anti-short circuit capability that improve transformer are strong, reduce the loss value of transformer, meet the particular/special requirement of electric railroad.
Accompanying drawing explanation
Fig. 1 is assembly structure schematic diagram of the present invention.
Fig. 2 is the main TV structure schematic diagram of the present invention.
Fig. 3 is the plan structure schematic diagram after the present invention removes peripheral insulative part.
In figure: 1-core insulation plate; 2-insulating end ring; 3-insulating part; 4-first coil; 5-second coil; 6-tertiary coil; 7-the 4th coil; 8-band; 9-iron core; 10-disc spring nail pressing; 11-device body.
Embodiment
Below in conjunction with Figure of description, technical scheme of the present invention is described in further detail.
As shown in Figure 1, 2, 3, the present invention includes iron core 9, coil, insulating part 3 and hold down gag, iron core 9 is single frame closed volume core structure, the vertical posts of iron core 9 is iron core column, the transverse post of iron core 9 is iron yoke, the multiple concentric coil of one iron core column coiling, the two ends up and down of each coil are equipped with insulating end ring 2, and the lower end of lower insulating end ring 2 and the upper end of upper insulating end ring 2 are equipped with core insulation plate 1.Iron core 9 is the rounded or oval closing structure iron core 9 in the cross section that rolled by silicon steel sheet.
For strengthening the globality of iron core, iron core 9 is provided with band 8 iron core column or iron yoke radial direction to be tied up.
One iron core column is provided with four ceoncentrically wound coils, is provided with insulating part 3, is provided with insulating part 3 between iron core column and coil between the adjacent windings being coated at same iron core column; The two ends of four ceoncentrically wound coils are provided with four corresponding insulating end rings 2.Coil is that width is to splitted construction.
For improving insulating properties, outer end and a core insulation plate 1 of four insulating end rings 2 are inconsistent.In the form of a ring, it is coated in iron core column core insulation plate 1.
For achieving a fixed connection, upper yoke insulation board 1 is provided with hold down gag, and coil, insulating end ring 2, iron core 9 compress in aggregates by hold down gag, and in the present embodiment, hold down gag is the multiple disc spring nail pressings 10 be located on upper yoke insulation board 1.
The course of processing of process portion: coil is directly wound on core limb, before coil winding, insulating part 3 that iron core column is wrapped, then the outside the first coil 4 being wound on insulating part 3.To wrap in the outside of the first coil 4 insulating part 3 then coiling second coil 5, by that analogy, by tertiary coil 6 and the 4th coil 7 all coiling complete.Between coil and coil, between coil and iron core column, according to the size of insulation distance, place insulating part 3 respectively.After 4 whole coilings of coil complete, all place insulating end ring 2 at the two ends of every coil respectively, finally at the core insulation plate 1 of the two ends of insulating end ring 2 difference holding integrated, add and fasten.Deng the coil of two core limbs after all coiling completes, iron core is erected come, on core insulation plate 1, increase disc spring nail pressing 10, whole device body 11 is closely compressed compacting, ensure electrical distance and mechanical strength, prevent coil to deform when transformer short-circuit situation fault.
Because coil is that width is to splitted construction, quantity is many, width is large to size, if double disc spring nail pressing 10, make to form an overall structure between iron core, coil and insulating part, prevent in transformer transporting process and in running overload process, because coil loosens the operation troubles brought, effectively improve anti-short circuit capability and the capability of overload of transformer, meet AT and to power the special service requirement of railway traction transformer.
A kind of AT shown in above Fig. 1-3 powers and rolls up iron core autotransformer machine body structure is specific embodiments of the invention; substantive distinguishing features of the present invention and progress are embodied; can according to the use needs of reality; under enlightenment of the present invention; it is carried out to the equivalent modifications of the aspect such as shape, structure, all at the row of the protection range of this programme.
Claims (5)
1. an AT powers and rolls up iron core autotransformer machine body structure, comprise iron core (9), coil, insulating part (3) and hold down gag, it is characterized in that: described iron core (9) is single frame closed volume core structure, the vertical posts of iron core (9) is iron core column, the transverse post of iron core (9) is iron yoke, the multiple concentric coil of one iron core column coiling, the two ends up and down of each coil are equipped with insulating end ring (2), the lower end of lower insulating end ring (2) and the upper end of upper insulating end ring (2) are equipped with core insulation plate (1), described upper yoke insulation board (1) is provided with described hold down gag, described hold down gag is by coil, insulating end ring (2), iron core (9) compresses in aggregates.
2. a kind of AT according to claim 1 powers and rolls up iron core autotransformer machine body structure, it is characterized in that: described iron core (9) is the rounded or oval closing structure iron core (9) in the cross section that rolled by silicon steel sheet, and described iron core (9) is provided with band (8) iron core column or iron yoke radial direction to be tied up.
3. a kind of AT according to claim 2 powers and rolls up iron core autotransformer machine body structure, it is characterized in that: an iron core column is provided with four ceoncentrically wound coils, be provided with insulating part (3) between the adjacent windings being coated at same iron core column, between described iron core column and coil, be provided with insulating part (3); The two ends of four ceoncentrically wound coils are provided with corresponding four insulating end rings (2), and outer end and a core insulation plate (1) of four insulating end rings (2) are inconsistent.
4. a kind of AT according to claim 1 powers and rolls up iron core autotransformer machine body structure, it is characterized in that: described coil is that width is to splitted construction.
5. a kind of AT according to the arbitrary claim of claim 1-4 powers and rolls up iron core autotransformer machine body structure, it is characterized in that: described hold down gag is multiple disc spring nail pressings (10), and described upper yoke insulation board (1) is provided with described disc spring nail pressing (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410517251.7A CN104538161A (en) | 2014-09-30 | 2014-09-30 | A body structure of AT power roll-core autotransformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410517251.7A CN104538161A (en) | 2014-09-30 | 2014-09-30 | A body structure of AT power roll-core autotransformer |
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| Publication Number | Publication Date |
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| CN104538161A true CN104538161A (en) | 2015-04-22 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410517251.7A Pending CN104538161A (en) | 2014-09-30 | 2014-09-30 | A body structure of AT power roll-core autotransformer |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105448504A (en) * | 2015-12-30 | 2016-03-30 | 卧龙电气集团股份有限公司 | Vv wiring wound core traction transformer |
| CN105976990A (en) * | 2016-07-04 | 2016-09-28 | 苏州吴变电气科技有限公司 | Heat dissipation structure of electric reactor |
| CN110070979A (en) * | 2019-05-21 | 2019-07-30 | 保定天威保变电气股份有限公司 | A kind of high-power transformer resistance to shorting structure and its resistance to shorting method |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5759310A (en) * | 1980-09-27 | 1982-04-09 | Hitachi Ltd | High voltage auto-transformer |
| CN101236824A (en) * | 2007-12-20 | 2008-08-06 | 卧龙电气集团股份有限公司 | Body structure of single-phase traction transformer |
| CN201134342Y (en) * | 2007-12-20 | 2008-10-15 | 卧龙电气集团股份有限公司 | Self-coupled traction transformer specialized for AT electricity supply |
| CN203690081U (en) * | 2014-02-26 | 2014-07-02 | 卧龙电气集团股份有限公司 | Four-coil-layer autotransformer for AT power supply |
| CN203787252U (en) * | 2014-01-03 | 2014-08-20 | 中铁工程设计咨询集团有限公司 | Iron core of auto-transformer and auto-transformer |
| CN204067012U (en) * | 2014-09-30 | 2014-12-31 | 卧龙电气集团股份有限公司 | A kind of AT powers and rolls up iron core autotransformer machine body structure |
-
2014
- 2014-09-30 CN CN201410517251.7A patent/CN104538161A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5759310A (en) * | 1980-09-27 | 1982-04-09 | Hitachi Ltd | High voltage auto-transformer |
| CN101236824A (en) * | 2007-12-20 | 2008-08-06 | 卧龙电气集团股份有限公司 | Body structure of single-phase traction transformer |
| CN201134342Y (en) * | 2007-12-20 | 2008-10-15 | 卧龙电气集团股份有限公司 | Self-coupled traction transformer specialized for AT electricity supply |
| CN203787252U (en) * | 2014-01-03 | 2014-08-20 | 中铁工程设计咨询集团有限公司 | Iron core of auto-transformer and auto-transformer |
| CN203690081U (en) * | 2014-02-26 | 2014-07-02 | 卧龙电气集团股份有限公司 | Four-coil-layer autotransformer for AT power supply |
| CN204067012U (en) * | 2014-09-30 | 2014-12-31 | 卧龙电气集团股份有限公司 | A kind of AT powers and rolls up iron core autotransformer machine body structure |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105448504A (en) * | 2015-12-30 | 2016-03-30 | 卧龙电气集团股份有限公司 | Vv wiring wound core traction transformer |
| CN105976990A (en) * | 2016-07-04 | 2016-09-28 | 苏州吴变电气科技有限公司 | Heat dissipation structure of electric reactor |
| CN110070979A (en) * | 2019-05-21 | 2019-07-30 | 保定天威保变电气股份有限公司 | A kind of high-power transformer resistance to shorting structure and its resistance to shorting method |
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Application publication date: 20150422 |