CN204497045U - A kind of open coil iron core autotransformer - Google Patents
A kind of open coil iron core autotransformer Download PDFInfo
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- CN204497045U CN204497045U CN201520115510.3U CN201520115510U CN204497045U CN 204497045 U CN204497045 U CN 204497045U CN 201520115510 U CN201520115510 U CN 201520115510U CN 204497045 U CN204497045 U CN 204497045U
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Abstract
The utility model discloses a kind of open coil iron core autotransformer, iron core is single-phase opening volume core structure, and its side is provided with the fracture that two ends are docked completely, and each layer fracture is dislocatedly distributed; Iron core vertical posts is iron core column, and transverse post is iron yoke; The one or more concentric winding of coiling in each iron core column, the upper/lower terminal of each winding is equipped with insulating part, and the lower end of lower insulating part and the upper end of upper insulating part are respectively equipped with upper and lower core insulation plate, and upper yoke insulation board is provided with hold down gag; Hold down gag by winding, insulating part, iron core compress in aggregates after, be placed in casing; Transformer oil or SF is full of in casing
6gas.The utility model quality is little, and volume is little, not only no-load loss and no-load current little, noise is low, easy to maintenance, and production efficiency is high, can realize batch production.
Description
Technical field
The utility model belongs to transformer manufacture technology, relates to a kind of autotransformer of powering for electric railway AT.
background technology
Electric railway has multiple supply power mode, and wherein autotransformer feeding system (be called for short AT supply power mode) has become the main supply power mode of high ferro, passenger traffic and heavy haul railway.This supply power mode not still electric railway alleviate one of effective measures of the interference effect to adjacent communication circuit, also greatly reduce the loss of voltage in Traction networks.
When Traction networks adopts AT supply power mode, along the railway an autotransformer is set every about 10km, so the quantity of autotransformer is appreciable.Reduce the no-load loss of autotransformer, for the railway system is energy-saving and cost-reducing, there is sizable meaning.And on the other hand, the transformer of railway demand, because of differences such as region, does not have uniformity, the product of every bar railway all needs to redesign, and supply and demand it is pressed for time, so require that autotransformer product can high efficiency manufacture, batch production.
The medium-and-large-sized transformer of current China, its core structure substantially all adopts stack form, and winding adopts independent coiling, the manufacturing process of later stage suit, manufacture process is simple, but to amass utilance not high for stack core section, causes no-load current and no-load loss all larger.And reel iron core transformer, no-load loss and the large problem of no-load current can be solved, but require that winding must directly be wound on iron core, need special spooling equipment, technique for coiling is complicated, and coiling speed is slow, and can not with iron core operation simultaneously, production efficiency is extremely low, substantially can not accomplish batch production.
Utility model content
The purpose of this utility model solves the above-mentioned problems in the prior art exactly, provides a kind of open coil iron core autotransformer, this autotransformer not only no-load loss and no-load current little, and production efficiency is high, can realize batch production.
For achieving the above object, technical solution of the present utility model is: a kind of open coil iron core autotransformer, and it comprises casing, iron core, insulating part, winding and hold down gag; Iron core is single-phase opening volume core structure, and its side is provided with the fracture that two ends are docked completely, and each layer fracture is dislocatedly distributed; Iron core vertical posts is iron core column, and transverse post is iron yoke; The one or more concentric winding of coiling in each iron core column, the upper/lower terminal of each winding is equipped with insulating part, and the lower end of lower insulating part and the upper end of upper insulating part are respectively equipped with upper and lower core insulation plate, and upper yoke insulation board is provided with hold down gag; Hold down gag by winding, insulating part, iron core compress in aggregates after, be placed in casing; Transformer oil or SF is full of in casing
6gas.
Iron core described above is formed by silicon steel sheet tape wrapping, and core section is circular, arranges fracture, during suit, is opened by fracture, carry out the assembling of winding and insulating part at upper yoke or lower yoke place.
An angled straight lines is formed after each layer fracture of iron core described above connects.
Winding described above is drum type brake winding or Helical winding.
Casing described above is drum type brake casing or bell-jar casing.
Iron core of the present utility model is single-phase opening volume core structure, and iron space factor is high, and have volume iron core quality little, volume is little, and no-load current is little, and loss is little, the advantage that noise is little.Meanwhile, iron core arranges fracture, and winding does not just need directly to be wound on iron core, does not need to use special volume iron core winding equipment, can while iron core manufactures, and independent coiling on common coil winding machine, coiling speed is fast.After winding technique completes, the iron core processed is opened from incision position, carry out the assembling of winding and insulating part.When power transformer product goes wrong, the fracture of iron core can be opened, insulating part and winding are placed under repair or changes, easy to maintenance.The utility model no-load loss is little, and no-load current is little, and noise is low, superior performance, and manufacture process is simple, and production efficiency is high, can realize batch and produce fast, to meet the urgent supply and demand requirement of railway.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Fig. 2 be in the utility model iron core and winding assembling after front view.
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is further described.
As depicted in figs. 1 and 2, the present embodiment comprises casing 1, iron core 5, insulating part 3, winding 4 and hold down gag 2.Iron core 5 is reeled by silicon steel sheet band 7 and forms, and iron core 5 cross section is circular, and vertical posts is iron core column 9, transverse post is iron yoke, upper yoke 11 is may also be at lower yoke 10() place is provided with the fracture 8 docked completely at two ends, and each layer fracture 8 is dislocatedly distributed, and forms an angled straight lines after connecting.The one or more concentric winding 4 of coiling in each iron core column 9, winding 4 is drum type brake winding or Helical winding.The upper/lower terminal of each winding 4 is equipped with insulating part 3, and the lower end of lower insulating part 3 and the upper end of upper insulating part 3 are respectively equipped with upper and lower core insulation plate, and upper yoke insulation board is provided with hold down gag 2.Hold down gag 2 winding 4, insulating part 3, iron core 5 are compressed in aggregates after, be placed in casing 1.Casing 1 is drum type brake casing or bell-jar casing, is full of transformer oil or SF in it
6the dielectrics such as gas 6.
Above-described embodiment is only preferred and exemplary, and those skilled in the art can carry out the improvement of equivalent technologies according to the description of this patent, it is all in the protection range of this patent.
Claims (9)
1. an open coil iron core autotransformer, it comprises casing, iron core, insulating part, winding and hold down gag; Iron core vertical posts is iron core column, and transverse post is iron yoke; The one or more concentric winding of coiling in each iron core column, the upper/lower terminal of each winding is equipped with insulating part, and the lower end of lower insulating part and the upper end of upper insulating part are respectively equipped with upper and lower core insulation plate, and upper yoke insulation board is provided with hold down gag; Hold down gag by winding, insulating part, iron core compress in aggregates after, be placed in casing; Transformer oil or SF is full of in casing
6gas; It is characterized in that: iron core is single-phase opening volume core structure, and its side is provided with the fracture that two ends are docked completely, and each layer fracture is dislocatedly distributed.
2. open coil iron core autotransformer according to claim 1, is characterized in that: described iron core is formed by silicon steel sheet tape wrapping, and core section is circular, arranges fracture at upper yoke or lower yoke place.
3. open coil iron core autotransformer according to claim 1 and 2, is characterized in that: form an angled straight lines after each layer fracture of described iron core connects.
4. open coil iron core autotransformer according to claim 3, is characterized in that: described winding is drum type brake winding or Helical winding.
5. open coil iron core autotransformer according to claim 4, is characterized in that: described casing is drum type brake casing or bell-jar casing.
6. open coil iron core autotransformer according to claim 1 and 2, is characterized in that: described winding is drum type brake winding or Helical winding.
7. open coil iron core autotransformer according to claim 6, is characterized in that: described casing is drum type brake casing or bell-jar casing.
8. open coil iron core autotransformer according to claim 3, is characterized in that: described casing is drum type brake casing or bell-jar casing.
9. open coil iron core autotransformer according to claim 1 and 2, is characterized in that: described casing is drum type brake casing or bell-jar casing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520115510.3U CN204497045U (en) | 2015-02-25 | 2015-02-25 | A kind of open coil iron core autotransformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520115510.3U CN204497045U (en) | 2015-02-25 | 2015-02-25 | A kind of open coil iron core autotransformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204497045U true CN204497045U (en) | 2015-07-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520115510.3U Active CN204497045U (en) | 2015-02-25 | 2015-02-25 | A kind of open coil iron core autotransformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204497045U (en) |
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2015
- 2015-02-25 CN CN201520115510.3U patent/CN204497045U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20180424 Address after: 071051 413 Baihua East Road, Baoding, Hebei Patentee after: In ferroelectric gas Industrial Co., Ltd Address before: No. 413, Baihua Dong Road, Baoding, Hebei Province, Hebei Patentee before: In Baoding railway transformer branch company of ferroelectric gas Industrial Co., Ltd |
|
| TR01 | Transfer of patent right |