CN202352498U - Three-winding on-load voltage-regulating step-down transformer with taps at high, medium and low voltage - Google Patents
Three-winding on-load voltage-regulating step-down transformer with taps at high, medium and low voltage Download PDFInfo
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- CN202352498U CN202352498U CN2011204744898U CN201120474489U CN202352498U CN 202352498 U CN202352498 U CN 202352498U CN 2011204744898 U CN2011204744898 U CN 2011204744898U CN 201120474489 U CN201120474489 U CN 201120474489U CN 202352498 U CN202352498 U CN 202352498U
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Abstract
The utility model relates to a three-winding on-load voltage-regulating step-down transformer with taps at the high, medium and low voltage, and belongs to the technical field of transformer manufacture. The technical scheme is that the three-winding on-load voltage-regulating step-down transformer includes an iron core (1), a low-voltage winding (2), a medium-voltage winding (3), a high-voltage winding (4) and a voltage regulating winding, wherein the low-voltage winding, the medium-voltage winding, the high-voltage winding and the voltage regulating winding are sequentially arranged outwards from the iron core; the voltage regulating winding includes a high-voltage voltage-regulating winding (7), a medium-voltage voltage-regulating winding (5) and a low-voltage voltage-regulating winding (6) that are sleeved on the outer layer; both the medium-voltage voltage-regulating winding and the low-voltage voltage-regulating winding consist of the same upper and lower parts; and the high-voltage voltage-regulating winding is positioned between the low-voltage voltage-regulating winding and the medium-voltage voltage-regulating winding. The three-winding on-load voltage-regulating step-down transformer provided by the utility model not only saves the raw material and man-hour consumption, reduces the incremental loss, and improves the technological properties, but also solves various quality problems caused by the facts that the welding wire joint is poor in quality and the bound tap wires are insulated, is more attractive and beautiful with respect to the leading wire arrangement compared with the conventional structure, has a wider voltage-regulating range and is more flexible at the same time.
Description
Technical field
The utility model relates to a kind of high, medium and low voltage all with three winding on-load voltage regulation and reduction transformers of tap, belongs to technical field of transformer manufacturing.
Background technology
Common three winding on-load tap-changing transformers have only high pressure or height, middle pressure winding band tap, wherein high-pressure side on-load voltage regulation, if medium voltage side band tap then be non-excitation pressure adjustment, low-pressure side is not with tap, can not pressure regulation.Above-mentioned voltage regulating mode can only satisfy general need for electricity, when low-pressure side change in voltage scope is had strict demand, owing to pressure regulation separately is difficult to meet the demands.Press shunting tap in middle pressure winding self the middle part band of common three winding on-load tap-changing transformers; General all is to draw in the leakage field passage of therefrom pressing between winding and the low pressure winding, in order to satisfy insulating requirements, must strengthen the distance between the mesolow winding; Coil dimension is increased; Unshakable in one's determination, shell increases thereupon, and transformer oil increases, and causes the transformer cost to increase.Common in addition three windings have voltage regulating transformer that high pressure pressure regulation winding is arranged on skin, because the height of high pressure pressure regulation winding is much smaller than other winding, remaining space is filled up by insulating material, causes transformer inner space utilance low, and manufacturing cost increases.
The utility model content
The purpose of the utility model provides a kind of high, medium and low voltage all with three winding on-load voltage regulation and reduction transformers of tap, range of regulation more extensively, more flexible, and raw materials consumption is less, solves the problems referred to above that background technology exists.
The technical scheme of the utility model is: a kind of high, medium and low voltage is all with three winding on-load voltage regulation and reduction transformers of tap; Comprise iron core, low pressure winding, middle pressure winding, high pressure winding, pressure regulation winding; From iron core outwards arrange successively the low pressure winding, pressure winding, high pressure winding and pressure regulation winding; Said pressure regulation winding comprises and is set in outer field high pressure pressure regulation winding, middle pressure pressure regulation winding and low pressure pressure regulation winding; Press pressure regulation winding and low pressure pressure regulation winding to be divided into identical upper and lower two parts in said and form, high pressure pressure regulation winding is positioned in the middle of them.
The high pressure winding is connected through on-load tap changer with high pressure pressure regulation winding, and middle pressure winding is connected through middle pressure non-excitation pressure adjustment shunting switch with middle pressure pressure regulation winding, and the low pressure winding is connected through low pressure non-excitation pressure adjustment shunting switch with low pressure pressure regulation winding.
The utility model high, medium and low voltage is all with three winding on-load voltage regulation and reduction transformers of tap, the lifting one's head by axially drawing of said low pressure winding, middle pressure winding and high pressure winding.
Three windings of the utility model high, medium and low voltage all are with tap, and range of regulation is wider, and middle pressure tap section, low pressure tap Duan Jun are divided into the two ends that two parts are placed on high pressure pressure regulation winding as pressure regulation winding independently; What take is original idle space, has so just reduced the main insulating structure between the mesolow winding, has improved the space availability ratio in the transformer; Reduced volume of transformer; And each winding ampere-turn equilibrium obviously improves, and reduces horizontal leakage field, improves transformer and bears short-circuit capacity.Simultaneously, low pressure winding hop count and wire gauge choose more flexibly, first head and tap bit copper band are again drawn, coil winding technology is simple.
The good effect of the utility model: the utility model can not only save material and expenditure of time; Reduce the transformer supplementary load loss; Improve processing performance; And avoided because the bad various quality problems that cause with line wrapping insulation of bonding wire joint, it is also attractive in appearance, beautiful than conventional structure that lead-in wire is arranged, simultaneously range of regulation more extensively, more flexible.
Description of drawings
Fig. 1 is the utility model embodiment sketch map;
Among the figure: 1, iron core; 2, low pressure winding; 3, middle pressure winding; 4, high pressure winding; 5, middle pressure pressure regulation winding; 6, low pressure pressure regulation winding; 7, high pressure pressure regulation winding winding.
Embodiment
Below in conjunction with accompanying drawing, the utility model is further specified through embodiment.
A kind of high, medium and low voltage is all with three winding on-load voltage regulation and reduction transformers of tap; Comprise iron core 1, low pressure winding 2, middle pressure winding 3, high pressure winding 4, pressure regulation winding; From iron core outwards arrange successively the low pressure winding, pressure winding, high pressure winding and pressure regulation winding; Said pressure regulation winding comprises and is set in outer field high pressure pressure regulation winding 7, middle pressure pressure regulation winding 5 and low pressure pressure regulation winding 6; Press pressure regulation winding and low pressure pressure regulation winding to be divided into identical upper and lower two parts in said and form, high pressure pressure regulation winding is positioned in the middle of them.
The high pressure winding is connected through on-load tap changer with high pressure pressure regulation winding, and middle pressure winding is connected through middle pressure non-excitation pressure adjustment shunting switch with middle pressure pressure regulation winding, and the low pressure winding is connected through low pressure non-excitation pressure adjustment shunting switch with low pressure pressure regulation winding.
The utility model high, medium and low voltage is all with three winding on-load voltage regulation and reduction transformers of tap, the lifting one's head by axially drawing of said low pressure winding, middle pressure winding and high pressure winding.
With reference to accompanying drawing, in, low pressure pressure regulation winding is placed on the two ends of high pressure pressure regulation winding 7 as pressure regulation winding independently, not with in, the coiling of putting together of low pressure winding.Adopt this structure, in, the main insulating structure between the low pressure winding needn't increase, and can reduce the volume of transformer, reduces manufacturing cost, and each winding ampere-turn equilibrium obviously improves, and reduces horizontal leakage field, transformer bears short-circuit capacity and improves.Simultaneously, in, low pressure winding hop count and wire gauge choose more flexibly, first head and tap bit copper band are again drawn, coil winding technology is simple.The utility model high pressure winding adopts a terminal portion outlet structure; High pressure pressure regulation winding is one the tunnel.Middle pressure winding is a terminal portion outlet structure; The middle independently pressure regulation winding of tap section conduct of pressing is not put together with middle pressure winding, is the two-way parallel-connection structure; The conduct of low pressure tap section is the pressure regulation winding independently, does not put together with the low pressure winding, is the two-way parallel-connection structure.Three windings all adopt this structure with the three-winding transformer of tap; Can economical with materials consumption; Processing performance is good, practices thrift man-hour, and has avoided because the bad various quality problems that cause with line wrapping insulation of bonding wire joint; In addition, lead-in wire is arranged more attractive in appearance, beautiful than conventional structure.
Claims (3)
1. a high, medium and low voltage is all with three winding on-load voltage regulation and reduction transformers of tap; It is characterized in that comprising iron core (1), low pressure winding (2), middle pressure winding (3), high pressure winding (4), pressure regulation winding; From iron core outwards arrange successively the low pressure winding, pressure winding, high pressure winding and pressure regulation winding; Said pressure regulation winding comprises and is set in outer field high pressure pressure regulation winding (7), middle pressure pressure regulation winding (5) and low pressure pressure regulation winding (6); Press pressure regulation winding and low pressure pressure regulation winding to be divided into identical upper and lower two parts in said and form, high pressure pressure regulation winding is positioned in the middle of them.
According to the said a kind of high, medium and low voltage of claim 1 all with three winding on-load voltage regulation and reduction transformers of tap; It is characterized in that the high pressure winding is connected through on-load tap changer with high pressure pressure regulation winding; The middle winding of pressing is connected through middle pressure non-excitation pressure adjustment shunting switch with middle pressure pressure regulation winding, and the low pressure winding is connected through low pressure non-excitation pressure adjustment shunting switch with low pressure pressure regulation winding.
According to claim 1 or 2 said a kind of high, medium and low voltages all with three winding on-load voltage regulation and reduction transformers of tap, it is characterized in that lifting one's head of said low pressure winding, middle pressure winding and high pressure winding by axially drawing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204744898U CN202352498U (en) | 2011-11-25 | 2011-11-25 | Three-winding on-load voltage-regulating step-down transformer with taps at high, medium and low voltage |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204744898U CN202352498U (en) | 2011-11-25 | 2011-11-25 | Three-winding on-load voltage-regulating step-down transformer with taps at high, medium and low voltage |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202352498U true CN202352498U (en) | 2012-07-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204744898U Expired - Lifetime CN202352498U (en) | 2011-11-25 | 2011-11-25 | Three-winding on-load voltage-regulating step-down transformer with taps at high, medium and low voltage |
Country Status (1)
| Country | Link |
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| CN (1) | CN202352498U (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102938307A (en) * | 2012-10-18 | 2013-02-20 | 西电济南变压器股份有限公司 | On-load voltage regulating transformer connected with high voltage D |
| CN103594235A (en) * | 2013-12-02 | 2014-02-19 | 中电电气(江苏)股份有限公司 | Winding structure of transformer |
| CN103606437A (en) * | 2013-12-04 | 2014-02-26 | 正泰电气股份有限公司 | Winding distribution mode of power transformer with balancing windings |
| CN105702435A (en) * | 2014-11-26 | 2016-06-22 | 特变电工衡阳变压器有限公司 | Deicing rectification transformer |
| CN106098322A (en) * | 2016-05-27 | 2016-11-09 | 江苏宏源电气有限责任公司 | A kind of multivoltage output intermediate transformer |
| CN109074950A (en) * | 2016-04-25 | 2018-12-21 | 西门子股份公司 | With the high voltage electric equipment adjusted around group |
| CN111816428A (en) * | 2020-06-19 | 2020-10-23 | 山东电力设备有限公司 | 220KV three-winding medium-voltage dual-voltage transformer lead structure |
-
2011
- 2011-11-25 CN CN2011204744898U patent/CN202352498U/en not_active Expired - Lifetime
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102938307A (en) * | 2012-10-18 | 2013-02-20 | 西电济南变压器股份有限公司 | On-load voltage regulating transformer connected with high voltage D |
| CN103594235A (en) * | 2013-12-02 | 2014-02-19 | 中电电气(江苏)股份有限公司 | Winding structure of transformer |
| CN103606437A (en) * | 2013-12-04 | 2014-02-26 | 正泰电气股份有限公司 | Winding distribution mode of power transformer with balancing windings |
| CN105702435A (en) * | 2014-11-26 | 2016-06-22 | 特变电工衡阳变压器有限公司 | Deicing rectification transformer |
| CN105702435B (en) * | 2014-11-26 | 2019-01-08 | 特变电工衡阳变压器有限公司 | A kind of ice-melt rectifier transformer |
| CN109074950A (en) * | 2016-04-25 | 2018-12-21 | 西门子股份公司 | With the high voltage electric equipment adjusted around group |
| CN109074950B (en) * | 2016-04-25 | 2021-10-15 | 西门子股份公司 | High-voltage electrical device with regulating winding group |
| CN106098322A (en) * | 2016-05-27 | 2016-11-09 | 江苏宏源电气有限责任公司 | A kind of multivoltage output intermediate transformer |
| CN111816428A (en) * | 2020-06-19 | 2020-10-23 | 山东电力设备有限公司 | 220KV three-winding medium-voltage dual-voltage transformer lead structure |
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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: 20131114 |
|
| 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: 20131114 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. |
|
| CX01 | Expiry of patent term |
Granted publication date: 20120725 |
|
| CX01 | Expiry of patent term |