CN203444932U - Winding of dry type transformer - Google Patents
Winding of dry type transformer Download PDFInfo
- Publication number
- CN203444932U CN203444932U CN201320435836.5U CN201320435836U CN203444932U CN 203444932 U CN203444932 U CN 203444932U CN 201320435836 U CN201320435836 U CN 201320435836U CN 203444932 U CN203444932 U CN 203444932U
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- China
- Prior art keywords
- winding
- coil
- pressure winding
- low pressure
- type transformer
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Links
- 238000004804 winding Methods 0.000 title claims abstract description 87
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 20
- 238000009423 ventilation Methods 0.000 claims abstract description 6
- 230000017105 transposition Effects 0.000 claims description 9
- 230000004888 barrier function Effects 0.000 claims description 6
- 241001061264 Astragalus Species 0.000 claims description 5
- 238000009413 insulation Methods 0.000 abstract description 3
- 238000007664 blowing Methods 0.000 abstract 1
- 238000001816 cooling Methods 0.000 description 6
- 238000000034 method Methods 0.000 description 3
- 230000009466 transformation Effects 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000008901 benefit Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005674 electromagnetic induction Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
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- Coils Of Transformers For General Uses (AREA)
Abstract
The utility model discloses a winding of a dry type transformer, and belongs to the field of power equipment. The winding comprises high-voltage windings and low-voltage windings, wherein the high-voltage windings and the low-voltage windings are wound on an iron core, and respectively comprise two sets of parallel coils, each coil is provided with two wire inlet ends and two wire outlet ends, at least one circle of coil cake is formed between each wire inlet end and each wire outlet end, and consists of a plurality of coil sections, the two adjacent coil sections are crossed and interchanged, the wire inlet ends and the wire outlet ends of the same wire section are positioned on one coil cake, a longitudinal ventilation air passage is arranged between each low-voltage winding and each high-voltage winding, each low-voltage winding corresponds to each high-voltage winding, an insulation layer is arranged between each low-voltage winding and each high-voltage winding, an insulation layer is arranged between the two adjacent low-voltage windings, a temperature sensor is arranged between the low-voltage windings and the iron core, the temperature sensor is connected with the temperature controller, the iron core is provided with a fan which is used for blowing air to the ventilation air passage, and the fan is connected with the temperature controller.
Description
Technical field
The utility model relates to field of electrical equipment, particularly a kind of winding of dry-type transformer.
Background technology
Transformer is to utilize the principle of electromagnetic induction to change the device of alternating voltage, and main member is primary coil, secondary coil and iron core.Major function has: voltage transformation, current transformation, impedance transformation, isolation, voltage stabilizing etc.By purposes, can be divided into: the winding of distribution transformer, power transformer, full-sealed transformer, combined transformer, dry-type transformer, oil-filled transformer, single-phase transformer, furnace transformer, rectifier transformer etc.
The winding of dry-type transformer is socketed on same iron core by high and low pressure coil, for the distribution transformer of high voltage occasion.In the winding of dry-type transformer, high-tension coil and low-voltage coil are the independent members being separated from each other.
At present, for the low-voltage coil of high-power transformer, because voltage is lower, the number of turn of coil is less, and electric current is very large.
In realizing process of the present utility model, inventor finds that prior art at least exists following problem:
When equipment needs many transformers, its floor space is large, and cost is high, and anti-short circuit capability is relatively on the low side, and it is cooling mainly to rely on cross-ventilation to carry out, and cooling effect is poor, can not withstand high temperatures.
When transformer wire loop current is very large, or need in special outlet situation, when traditional loop construction is subject to short-circuit current rush, coil circulation loss is larger; Easily cause in addition the breach of line cake, thereby the insulation of wire is destroyed, when serious, cause the short circuit of whole coil.
Summary of the invention
In order to solve the problem of prior art, the utility model embodiment provides a kind of winding of dry-type transformer.Described technical scheme is as follows:
The utility model embodiment provides a kind of winding of dry-type transformer, and the winding of described dry-type transformer comprises low pressure winding and the high pressure winding being wound on iron core; Described low pressure winding and described high pressure winding include the coil of two groups of parallel connections;
Described each coil has two lead-in wire terminals and two leading-out terminals, described lead-in wire terminal and leading-out terminal are formed with at least one astragal cake, every astragal cake is comprised of multistage line segment, intersecting between adjacent two described coil line segments transposition setting, and the lead-in wire terminal of same line segment and leading-out terminal are positioned on same line cake;
Between described low pressure winding and high pressure winding, be provided with longitudinal ventilation air flue, described low pressure winding is corresponding one by one with high pressure winding, between described low pressure winding and high pressure winding, be provided with insulating barrier, between described two adjacent low pressure windings, be also provided with insulating barrier, between described low pressure winding and iron core, be provided with temperature sensor, described temperature sensor connects temperature controller, and described iron core is provided with the blower fan that blows to described ventilating air passage, and described blower fan is connected with described temperature controller.
Particularly, the lead-in wire terminal on different coil line segments and the leading-out terminal setting that is staggered.
Particularly, different coil line segment average diameters are identical, and coil impedance is on the same group not basic identical.
Particularly, described every group of coil is two disc coils.
Particularly, described temperature sensor outputs to temperature controller after obtaining temperature signal, and after processing of circuit, temperature controller is each phase winding temperature of demonstration capable of circulation just, when any one winding temperature is greater than design temperature, temperature controller sends control signal and makes the blower fan entry into service that switches on power.
The beneficial effect that the technical scheme that the utility model embodiment provides is brought is:
Coil windings is comprised of the many groups coil arranging that is in parallel up and down, the line segment coordinated transposition between every group of coil, and many one times compared with normal coil of transposition number, coil circulation loss is less; A plurality of high pressure windings and low pressure winding are distributed on same iron core, increased the utilance of iron core, reduced the loss of transformer, reduced the cost of transformer, ventilating air passage is discharged the heat producing in transformer running, reach the object of cooling down, improve load capacity, extend transformer life.
Accompanying drawing explanation
In order to be illustrated more clearly in the technical scheme in the utility model embodiment, below the accompanying drawing of required use during embodiment is described is briefly described, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skills, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is the structural representation of the winding that provides of the utility model embodiment;
Fig. 2 is the structural representation of the dry-type transformer that provides of the utility model embodiment.
Embodiment
For making the purpose of this utility model, technical scheme and advantage clearer, below in conjunction with accompanying drawing, the utility model execution mode is described in further detail.
The utility model embodiment provides a kind of winding of dry-type transformer, and referring to Fig. 1, the winding of described dry-type transformer comprises low pressure winding 2 and the high pressure winding 3 being wound on iron core 1.
Particularly, low pressure winding 2 and high pressure winding 3 include the coil of two groups of parallel connections, and every group of coil is two disc coils, for convenience of signal, two circle line cakes 11 of same coil are apart arranged certain intervals.Each coil has two lead-in wire terminals 12 and two leading-out terminals 13, and every astragal cake is comprised of multistage line segment, and intersecting between adjacent two coil line segments transposition arranges, and the lead-in wire terminal of same line segment and leading-out terminal are positioned on same line cake.
Concrete winding method is: suppose to have two groups of coils, the all wire turns in outside of the wire in a coil all extend to together along half or only about half of peripheral direction of this coil, simultaneously the outermost layer of the surrounding wire turn of that coil segment remainder half or only about half of being shifted in another winding segments one by one, to can extend along its surrounding with the residue wire turn described in skin circle, in the outer circle of another winding segments the wire turn outermost layer of wire half or only about half ofly also with mutual method, be shifted in another winding segments alone, so that extend to wire external layer circle can not replace part surrounding, arrangement can make winding radial evenly like this, can make again their average diameter identical.
The present embodiment is divided into two groups by coil, can carry out coordinated transposition, many one times compared with normal coil of transposition number.Thereby coil circulation loss is less.Stability Analysis of Structures is firm, and terminal is flexible.
Particularly, referring to Fig. 2, between low pressure winding 2 and high pressure winding 3, be provided with longitudinal ventilation air flue 4, low pressure winding 2 is corresponding one by one with high pressure winding 3, between low pressure winding 2 and high pressure winding 3, is provided with insulating barrier 5, between two adjacent low pressure windings 2, is also provided with insulating barrier 5, between low pressure winding 2 and iron core 1, be provided with temperature sensor 6, temperature sensor 6 connects temperature controller 7, and iron core 4 is provided with the blower fan 8 that blows to described ventilating air passage, and blower fan 8 is connected with temperature controller 7.
Temperature sensor 6 outputs to temperature controller 7 after obtaining temperature signal, after processing of circuit, temperature controller 7 is each phase winding temperature of demonstration capable of circulation just, when any one winding temperature is greater than design temperature, temperature controller 7 sends control signal and makes blower fan 8 entry into service that switches on power, and then the heat producing in transformer running is discharged, and reaches the object of cooling down, improve load capacity, extend transformer useful life.
The transformer that the utility model embodiment provides, can isolated operation, also can move simultaneously, there is compact conformation, the feature that floor space is little, a plurality of high pressure windings and low pressure winding are distributed on same iron core, have increased the utilance of iron core, reduced the loss of transformer, reduced the cost of transformer, ventilating air passage is discharged the heat producing in transformer running, reaches the object of cooling down, improve load capacity, extend transformer life.Reasonable in design of the present invention, arranges automatic safety device to extend the useful life of transformer oil in transformer oil, reaches protection transformer, improves the object of service life of equipment.
The beneficial effect that the technical scheme that the utility model embodiment provides is brought is:
Coil windings is comprised of the many groups coil arranging that is in parallel up and down, the line segment coordinated transposition between every group of coil, and many one times compared with normal coil of transposition number, coil circulation loss is less; A plurality of high pressure windings and low pressure winding are distributed on same iron core, increased the utilance of iron core, reduced the loss of transformer, reduced the cost of transformer, ventilating air passage is discharged the heat producing in transformer running, reach the object of cooling down, improve load capacity, extend transformer life.
The foregoing is only preferred embodiment of the present utility model, not in order to limit the utility model, all within spirit of the present utility model and principle, any modification of doing, be equal to replacement, improvement etc., within all should being included in protection range of the present utility model.
Claims (5)
1. a winding for dry-type transformer, the winding of described dry-type transformer comprises low pressure winding and the high pressure winding being wound on iron core; Described low pressure winding and described high pressure winding include the coil of two groups of parallel connections; It is characterized in that,
Described each coil has two lead-in wire terminals and two leading-out terminals, described lead-in wire terminal and leading-out terminal form at least one astragal cake, every astragal cake is comprised of multistage line segment, intersecting between adjacent two described coil line segments transposition setting, and the lead-in wire terminal of same line segment and leading-out terminal are positioned on same line cake;
Between described low pressure winding and high pressure winding, be provided with longitudinal ventilation air flue, described low pressure winding is corresponding one by one with high pressure winding, between described low pressure winding and high pressure winding, be provided with insulating barrier, between described two adjacent low pressure windings, be also provided with insulating barrier, between described low pressure winding and iron core, be provided with temperature sensor, described temperature sensor connects temperature controller, and described iron core is provided with the blower fan that blows to described ventilating air passage, and described blower fan is connected with described temperature controller.
2. according to the winding of the dry-type transformer described in claim l, it is characterized in that the setting that is staggered of the lead-in wire terminal on different coil line segments and leading-out terminal.
3. according to the winding of the dry-type transformer described in claim l or 2, it is characterized in that, different coil line segment average diameters are identical, and coil impedance is on the same group not basic identical.
4. according to the winding of the dry-type transformer described in claim l, it is characterized in that, described every group of coil is two disc coils.
5. according to the winding of the dry-type transformer described in claim l, it is characterized in that, described temperature sensor outputs to temperature controller after obtaining temperature signal, after processing of circuit, temperature controller is each phase winding temperature of demonstration capable of circulation just, when any one winding temperature is greater than design temperature, temperature controller sends control signal and makes the blower fan entry into service that switches on power.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320435836.5U CN203444932U (en) | 2013-07-22 | 2013-07-22 | Winding of dry type transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320435836.5U CN203444932U (en) | 2013-07-22 | 2013-07-22 | Winding of dry type transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203444932U true CN203444932U (en) | 2014-02-19 |
Family
ID=50095960
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320435836.5U Expired - Fee Related CN203444932U (en) | 2013-07-22 | 2013-07-22 | Winding of dry type transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203444932U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106598118A (en) * | 2016-11-30 | 2017-04-26 | 国网山东省电力公司青州市供电公司 | Dry type transformer temperature and humidity control system |
| CN106653314A (en) * | 2016-11-25 | 2017-05-10 | 保定天威集团特变电气有限公司 | Dual-pie type winding structure |
-
2013
- 2013-07-22 CN CN201320435836.5U patent/CN203444932U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106653314A (en) * | 2016-11-25 | 2017-05-10 | 保定天威集团特变电气有限公司 | Dual-pie type winding structure |
| CN106653314B (en) * | 2016-11-25 | 2018-08-07 | 保定天威集团特变电气有限公司 | A kind of double cake-type winding structures |
| CN106598118A (en) * | 2016-11-30 | 2017-04-26 | 国网山东省电力公司青州市供电公司 | Dry type transformer temperature and humidity control system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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: 20140219 Termination date: 20210722 |
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| CF01 | Termination of patent right due to non-payment of annual fee |