CN202025628U - Low-voltage radially dual-split on-load regulating transformer - Google Patents
Low-voltage radially dual-split on-load regulating transformer Download PDFInfo
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- CN202025628U CN202025628U CN2011201167456U CN201120116745U CN202025628U CN 202025628 U CN202025628 U CN 202025628U CN 2011201167456 U CN2011201167456 U CN 2011201167456U CN 201120116745 U CN201120116745 U CN 201120116745U CN 202025628 U CN202025628 U CN 202025628U
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Abstract
The utility model relates to a low-voltage radially dual-split on-load regulating transformer, which belongs to the technical field of transformer production. In the technical scheme, the on-load regulating transformer comprises high-voltage windings (1), low-voltage windings, regulating windings (4) and a core (5), each low-voltage winding is radially split into two windings, the core is of a three-phase three-limb structure, each limb is a phase, five windings are sleeved on each limb, and the core, the regulating windings, the low-voltage windings (2), the high-voltage windings, the low-voltage windings (3) and the regulating windings are sequentially arranged from the core to the outside. The transformer is low, and therefore is convenient to transport, the shock resistance of the transformer is enhanced to a certain degree as well, the magnitude of the short-circuiting electrodynamic force applied on the regulating windings can be decreased, the axial mechanical force of the high-capacity split transformer is effectively decreased during sudden short-circuiting, and the safety and reliability of the operation of the product are enhanced.
Description
Technical field:
The utility model relates to the on-load tap-changing transformer of a kind of low pressure amplitude to two divisions, belongs to technical field of transformer manufacturing.
Background technology:
On-load tap-changing transformer originally is that a kind of high pressure is on-load voltage regulation, low pressure is the transformer of the width of cloth to two divisions, this kind transformer can be widely with being the big capacity startup in power plant, spare transformer, in the background technology such transformer adopting be low-pressure shaft to two splitted construction, existing problems are that the security reliability of product is poor.
The utility model content:
The utility model purpose provides the on-load tap-changing transformer of a kind of low pressure amplitude to two divisions, reduced the axial mechanical force of big capacity transformer with split winding when sudden short circuit effectively, improve the security reliability of product operation, solved the problems referred to above that background technology exists.
The technical solution of the utility model is: a kind of low pressure amplitude is to the on-load tap-changing transformer of two divisions, comprise high pressure winding, low pressure winding, pressure regulation winding, iron core, the low pressure winding at the width of cloth to being split into two windings, iron core is the three-phase three-limb structure, every post is a phase, be with five windings on every post, outwards be followed successively by iron core, pressure regulation winding, low pressure winding, high pressure winding, low pressure winding, pressure regulation winding from iron core.
The high pressure winding is on-load voltage regulation, and the transformer end is provided with the on-load voltage regulating switch of a three-phase, is used for the on-load voltage regulation of high pressure.
Two low pressure windings of three-phase are formed two dihedrals respectively and are connect, and the high pressure winding is a star connection, Y connection, seals in the pressure regulation winding at high pressure winding end.
The low pressure winding of two divisions of the utility model adopts the width of cloth to arrangement architecture, lays respectively at the inside and outside both sides of high pressure winding; After adopting this structure, the symmetry that winding relative position and ampere-turn distribute is all than low-pressure shaft good to splitted construction, transformer partly pass through operation short circuit hourglass flux field road be distributed symmetrically, evenly, rule, laterally leakage flux is starkly lower than the scheme of axial split.And the horizontal size of axial force during the size of leakage flux decision short circuit in winding, so adopt the structure of low pressure amplitude to division, the short circuit axial force is far below the structure that adopts the low pressure axial split.
The beneficial effects of the utility model are: the utility model winding middle part does not exist interrupts the gap, there is not uneven situation in herein stressed of line cake, the risk of the axial unstability of short circuit far below low-pressure shaft to splitted construction, and low pressure amplitude is to splitted construction, the transformer height is low, be convenient to transportation, shock resistance is also improved.Adopt the utility model, pressure regulation winding to be positioned at (outward) side, avoid the main leakage sky road of winding, winding relative position symmetry.Layout can reduce the size of the suffered short-circuit electromotive force of pressure regulation winding like this, and the absolute value that differs when making short-circuit impedance value when high pressure maximum (little) tap is moved with respect to the operation of specified tap keeps symmetry consistent, has improved the security reliability of product operation.
Description of drawings:
Accompanying drawing 1 is that transformer device structure of the present invention is arranged vertical view;
Accompanying drawing 2 is device body winding Pareto diagrams of the present invention;
Accompanying drawing 3 is electrical wiring schematic diagrams of the present invention.
Among the figure: high pressure winding 1, low pressure winding 2 and 3, pressure regulation winding 4, iron core 5, loaded switch 6.
Embodiment:
Below in conjunction with accompanying drawing, the utility model is described in further detail by embodiment.
A kind of low pressure amplitude is to the on-load tap-changing transformer of two divisions, comprise high pressure winding 1, low pressure winding, pressure regulation winding 4, unshakable in one's determination 5, the low pressure winding at the width of cloth to being split into two windings, iron core is the three-phase three-limb structure, every post is a phase, be with five windings on every post, outwards be followed successively by iron core, pressure regulation winding, low pressure winding 2, high pressure winding, low pressure winding 3, pressure regulation winding from iron core.
The high pressure winding is on-load voltage regulation, and the transformer end is provided with the on-load voltage regulating switch 6 of a three-phase, is used for the on-load voltage regulation of high pressure.
Two low pressure windings of three-phase are formed two dihedrals respectively and are connect, and the high pressure winding is a star connection, Y connection, seals in the pressure regulation winding at high pressure winding end.
Claims (4)
1. a low pressure amplitude is to the on-load tap-changing transformer of two divisions, it is characterized in that comprising high pressure winding (1), low pressure winding, pressure regulation winding (4), (5) unshakable in one's determination, the low pressure winding at the width of cloth to being split into two windings, iron core is the three-phase three-limb structure, every post is a phase, be with five windings on every post, outwards be followed successively by iron core, pressure regulation winding, low pressure winding (2), high pressure winding, low pressure winding (3), pressure regulation winding from iron core.
2. according to the on-load tap-changing transformer of the described low pressure amplitude of claim 1, it is characterized in that the transformer end is provided with the on-load voltage regulating switch of a three-phase (6) to two divisions.
According to claim 1 or 2 described low pressure amplitudes to the on-load tap-changing transformer of two divisions, it is characterized in that the terminal series connection of transformer secondary side air core reactor (4).
4. according to the on-load tap-changing transformer of the described low pressure amplitude of claim 3 to two divisions, two low pressure windings that it is characterized in that three-phase are formed two dihedrals respectively and are connect, and the high pressure winding is a star connection, Y connection, seals in the pressure regulation winding at high pressure winding end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201167456U CN202025628U (en) | 2010-12-30 | 2011-04-20 | Low-voltage radially dual-split on-load regulating transformer |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020689013.1 | 2010-12-30 | ||
| CN201020689013 | 2010-12-30 | ||
| CN2011201167456U CN202025628U (en) | 2010-12-30 | 2011-04-20 | Low-voltage radially dual-split on-load regulating transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202025628U true CN202025628U (en) | 2011-11-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011201167456U Expired - Fee Related CN202025628U (en) | 2010-12-30 | 2011-04-20 | Low-voltage radially dual-split on-load regulating transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202025628U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102376441A (en) * | 2011-12-05 | 2012-03-14 | 保定天威集团有限公司 | High-capacity double-body split on-load voltage-regulating transformer |
| CN102412056A (en) * | 2011-12-05 | 2012-04-11 | 保定天威集团有限公司 | Voltage-regulating winding structure of splitting winding type on-load tap-changing transformer |
| CN102420047A (en) * | 2011-12-05 | 2012-04-18 | 保定天威集团有限公司 | 220-kV high-capacity split type transformer having double-body structure |
| CN102436920A (en) * | 2011-12-05 | 2012-05-02 | 保定天威集团有限公司 | High-capacity three-body split winding type transformer |
| CN102543400A (en) * | 2011-12-23 | 2012-07-04 | 中国西电电气股份有限公司 | Low-voltage regulation coil device of traction transformer |
| CN110233027A (en) * | 2019-05-29 | 2019-09-13 | 南通晓星变压器有限公司 | A kind of transformer with split winding |
-
2011
- 2011-04-20 CN CN2011201167456U patent/CN202025628U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102376441A (en) * | 2011-12-05 | 2012-03-14 | 保定天威集团有限公司 | High-capacity double-body split on-load voltage-regulating transformer |
| CN102412056A (en) * | 2011-12-05 | 2012-04-11 | 保定天威集团有限公司 | Voltage-regulating winding structure of splitting winding type on-load tap-changing transformer |
| CN102420047A (en) * | 2011-12-05 | 2012-04-18 | 保定天威集团有限公司 | 220-kV high-capacity split type transformer having double-body structure |
| CN102436920A (en) * | 2011-12-05 | 2012-05-02 | 保定天威集团有限公司 | High-capacity three-body split winding type transformer |
| CN102412056B (en) * | 2011-12-05 | 2013-06-05 | 保定天威集团有限公司 | Voltage-regulating winding structure of splitting winding type on-load tap-changing transformer |
| CN102543400A (en) * | 2011-12-23 | 2012-07-04 | 中国西电电气股份有限公司 | Low-voltage regulation coil device of traction transformer |
| CN110233027A (en) * | 2019-05-29 | 2019-09-13 | 南通晓星变压器有限公司 | A kind of transformer with split winding |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: BAODING TIANWEI BAOBIAN ELECTRIC CO., LTD. Free format text: FORMER OWNER: BAODING TIANWEI GROUP CO., LTD. Effective date: 20131119 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 071051 BAODING, HEBEI PROVINCE TO: 071056 BAODING, HEBEI PROVINCE |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20131119 Address after: 071056 West Road, Hebei, Baoding, No. 2222, No. Patentee after: Baoding Tianwei Baobian Electric Co., Ltd. Address before: 071051, Hebei City, Baoding province ginkgo Road, No. 198 Jin Di garden complex Patentee before: Baoding Tianwei Group Co., Ltd. |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20111102 Termination date: 20140420 |