CN102360772A - Iron chip type composite structure of large transformer - Google Patents
Iron chip type composite structure of large transformer Download PDFInfo
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- CN102360772A CN102360772A CN2011102096630A CN201110209663A CN102360772A CN 102360772 A CN102360772 A CN 102360772A CN 2011102096630 A CN2011102096630 A CN 2011102096630A CN 201110209663 A CN201110209663 A CN 201110209663A CN 102360772 A CN102360772 A CN 102360772A
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- iron chip
- limb
- chip
- yoke iron
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Abstract
The invention relates to an iron chip type composite structure of a large transformer. The iron chip type composite structure comprises a main limb iron chip, a side limb iron chip, a main limb upper yoke iron chip, a main limb lower yoke iron chip, a side limb upper yoke iron chip and a side limb lower yoke iron chip and is characterized in that the cross areas of the side limb iron chip, the side limb upper yoke iron chip and the side limb lower yoke iron chip are 42-50% of the cross area of a main limb, the cross areas of the main limb upper yoke iron chip and the main limb lower yoke iron chip are 50-58% of the cross area of the main limb, and the sum of the cross areas of the side limb iron chip, the side limb upper yoke iron chip and the side limb lower yoke iron chip and the cross areas of the main limb upper yoke iron chip and the main limb lower yoke iron chip is larger than or equal to the cross area of the main limb iron chip. The iron chip type composite structure provided by the invention has the beneficial effects that magnetic flux density is uniformly distributed in the whole iron core, raw material is saved, manufacturing cost is reduced, no-load property is improved, and noise is reduced. The iron chip type composite structure provided by the invention is mainly applied to a large three-phase five-limb type power transformer core.
Description
Technical field
The invention belongs to transformer, relate to a kind of high-power transformer lamination shape combining structure.
Background technology
Present stage; Because the sectional area of iron yoke equals about 54% of iron core column sectional area in the three-phase five-limb iron core; Because the influence of the length of magnetic path and core sataration, the magnetic flux of post and last lower yoke thereof is lower than 50% of principal post by causing flowing through, and the magnetic flux of lower yoke is higher than 54% of principal post on the principal post of flowing through; The magnetic flux density of post and last lower yoke thereof is low excessively by can making like this, causes waste of material; The magnetic flux density of lower yoke is too high on the principal post, causes no-load loss, no-load current sharply to increase, and causes a series of unfavorable factors such as increase of local overheating and noise level easily.
Summary of the invention
The present invention provides the high-power transformer lamination shape combining structure that a kind of structure is simple relatively, no-load performance is good, noise level is low in order to remedy the deficiency of prior art.
The present invention realizes through following technical scheme:
High-power transformer lamination shape combining structure of the present invention; Comprise the principal post lamination; Other column iron core sheet; The upper and lower iron yoke of principal post chip, the upper and lower iron yoke of other post chip, its special character is: the sectional area of other column iron core sheet and the upper and lower iron yoke of other post chip is 42～50% of a principal post; The sectional area of the upper and lower iron yoke of principal post chip is 50～58% of a principal post, other column iron core sheet and up and down iron yoke chip sectional area and principal post up and down iron yoke chip sectional area sum more than or equal to principal post lamination sectional area.
High-power transformer lamination shape combining structure of the present invention has projection laterally on the upper and lower iron yoke of the principal post chip.
The invention has the beneficial effects as follows that the existing structure magnetic flux density is the skewness structure in the iron yoke; The new construction magnetic flux density is evenly distributed in whole iron core, has practiced thrift raw material, has reduced manufacturing cost, improves no-load performance, has reduced noise, and this structure is mainly used on the large-scale three-phase five-limb electrical transformer cores.
Description of drawings
Fig. 1 looks sketch map for traditional transformer lamination shape master.Fig. 2 looks sketch map for transformer iron-core piece shape master of the present invention.
Among the figure: 1 principal post lamination, 2 other column iron core sheets, the upper and lower iron yoke of 3 principal posts chip, the upper and lower iron yoke of 4 other posts chip.
Embodiment
Accompanying drawing 2 is a kind of specific embodiment of the present invention.
High-power transformer lamination shape of the present invention and combination mainly are made up of principal post lamination 1, other column iron core sheet 2, the upper and lower iron yoke of principal post chip 3 and the upper and lower iron yoke of other post chip 4; The sectional area of other column iron core sheet and the upper and lower iron yoke of other post chip is 42～50% of a principal post lamination; The sectional area of the upper and lower iron yoke of principal post chip is 50～58% of a principal post lamination; And according to the different flexible combination of specific product core structure pattern, the length of magnetic path, but other post and go up the pairing lamination sectional area of lower yoke respectively with principal post up and down iron yoke chip sectional area sum more than or equal to the lamination sectional area of principal post.On the upper and lower iron yoke of the principal post chip projection is laterally arranged.
This invention has been carried out sunykatuib analysis to the circulation path and the distribution of magnetic flux in the transformer core, and this structure has been practiced thrift raw material, has reduced manufacturing cost, improves no-load performance, has reduced noise.This structure is mainly used on the large-scale three-phase five-limb electrical transformer cores.
Claims (2)
1. high-power transformer lamination shape combining structure; Comprise principal post lamination (1); Other column iron core sheet (2); The upper and lower iron yoke of principal post chip (3), the upper and lower iron yoke of other post chip ⑷ is characterized in that: the sectional area of other column iron core sheet and the upper and lower iron yoke of other post chip is 42～50% of a principal post; The sectional area of the upper and lower iron yoke of principal post chip is 50～58% of a principal post, other column iron core sheet and up and down iron yoke chip sectional area and principal post up and down iron yoke chip sectional area sum more than or equal to principal post lamination sectional area.
2. high-power transformer lamination shape combining structure according to claim 1 is characterized in that: on the upper and lower iron yoke of the principal post chip projection is laterally arranged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011102096630A CN102360772A (en) | 2011-07-26 | 2011-07-26 | Iron chip type composite structure of large transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011102096630A CN102360772A (en) | 2011-07-26 | 2011-07-26 | Iron chip type composite structure of large transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102360772A true CN102360772A (en) | 2012-02-22 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011102096630A Pending CN102360772A (en) | 2011-07-26 | 2011-07-26 | Iron chip type composite structure of large transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102360772A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104282412A (en) * | 2014-10-28 | 2015-01-14 | 田村（中国）企业管理有限公司 | Magnetic integrated inductor |
| CN107749338A (en) * | 2017-11-02 | 2018-03-02 | 江苏中天伯乐达变压器有限公司 | A kind of high overload oil-filled transformer |
| CN108682541A (en) * | 2018-04-26 | 2018-10-19 | 西南交通大学 | A kind of tractive transformer |
| CN109285671A (en) * | 2018-11-29 | 2019-01-29 | 山东达驰电气有限公司 | A kind of transformer iron-core structure and manufacturing method |
| CN110571030A (en) * | 2018-06-05 | 2019-12-13 | 特变电工沈阳变压器集团有限公司 | Traction transformer with two-phase four-column structure connected in Vv mode |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN85103560A (en) * | 1985-05-03 | 1985-10-10 | 青田县电器技术研究所 | The three-phase saturation electric reactor of a kind of heptastyle laminated type (or laminated type) singlecore |
| CN85103561A (en) * | 1985-05-03 | 1985-10-10 | 丽水师范专科学校 | A kind of three-phase transformer of four legged magnetic core |
| JPH0644536B2 (en) * | 1984-10-30 | 1994-06-08 | 株式会社日立製作所 | Induction electric iron core with side legs |
| CN202142388U (en) * | 2011-07-26 | 2012-02-08 | 山东达驰电气有限公司 | Sheet-shaped combination structure of large-scale transformer iron core |
-
2011
- 2011-07-26 CN CN2011102096630A patent/CN102360772A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0644536B2 (en) * | 1984-10-30 | 1994-06-08 | 株式会社日立製作所 | Induction electric iron core with side legs |
| CN85103560A (en) * | 1985-05-03 | 1985-10-10 | 青田县电器技术研究所 | The three-phase saturation electric reactor of a kind of heptastyle laminated type (or laminated type) singlecore |
| CN85103561A (en) * | 1985-05-03 | 1985-10-10 | 丽水师范专科学校 | A kind of three-phase transformer of four legged magnetic core |
| CN202142388U (en) * | 2011-07-26 | 2012-02-08 | 山东达驰电气有限公司 | Sheet-shaped combination structure of large-scale transformer iron core |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104282412A (en) * | 2014-10-28 | 2015-01-14 | 田村（中国）企业管理有限公司 | Magnetic integrated inductor |
| CN107749338A (en) * | 2017-11-02 | 2018-03-02 | 江苏中天伯乐达变压器有限公司 | A kind of high overload oil-filled transformer |
| CN108682541A (en) * | 2018-04-26 | 2018-10-19 | 西南交通大学 | A kind of tractive transformer |
| CN110571030A (en) * | 2018-06-05 | 2019-12-13 | 特变电工沈阳变压器集团有限公司 | Traction transformer with two-phase four-column structure connected in Vv mode |
| CN109285671A (en) * | 2018-11-29 | 2019-01-29 | 山东达驰电气有限公司 | A kind of transformer iron-core structure and manufacturing method |
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Application publication date: 20120222 |