CN201262886Y - Tri-loop loaded voltage regulating transformer - Google Patents
Tri-loop loaded voltage regulating transformer Download PDFInfo
- Publication number
- CN201262886Y CN201262886Y CNU2008201059106U CN200820105910U CN201262886Y CN 201262886 Y CN201262886 Y CN 201262886Y CN U2008201059106 U CNU2008201059106 U CN U2008201059106U CN 200820105910 U CN200820105910 U CN 200820105910U CN 201262886 Y CN201262886 Y CN 201262886Y
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- winding
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- regulation
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Abstract
A three-coil loaded voltage-adjusting power transformer belongs to the transformer technology field and aims at solving the problems of high cost and complicated process. The technical proposal is as follows: each winding comprises a low-voltage winding, an intermediate-voltage winding, a high-voltage winding and a voltage-adjusting winding which are sequentially sheathed on an iron core from the inside to the outside; the voltage-adjusting winding comprises a high-voltage adjusting winding and an intermediate-voltage adjusting winding which are sheathed on the outer layer; the high-voltage adjusting winding comprises an upper part and a lower part which are identical, and the intermediate-voltage adjusting winding is positioned between the two parts; the intermediate-voltage winding is connected with the intermediate-voltage adjusting winding by an intermediate-voltage tapping switch. Compared with the traditional three-coil load voltage-adjusting power transformer, the power transformer not only can conserve materials and processing time and improve the processing capability, but also can avoid various quality problems caused by poor welding joints and the insulation of tapping package. Simultaneously, the arrangement of leads is more elegant and excellent than the traditional structure.
Description
Technical field
The utility model relates to a kind of improved three circle on-load voltage regulation power transformers, belongs to the transformer technology field.
Background technology
When tradition 110kV three rolls up the intermediate voltage winding band tap section (voltage regulation coil) of on-load tap-changing transformers, middle pressure shunting tap generally all is to draw in the leakage field passage of therefrom pressing between winding and the low pressure winding, like this when design of transformer, in order to satisfy insulating requirements, must consider to strengthen the distance between the mesolow winding, coil dimension is increased, unshakable in one's determination, shell increases thereupon, transformer oil increases, and causes the transformer cost to increase.In addition, tradition 110kV three volume on-load tap-changing transformers are arranged on skin with high pressure pressure regulation winding, because the height of high pressure pressure regulation winding is far smaller than other winding, remaining space is filled up by packing material, cause transformer inner space utilance to reduce, manufacturing cost increases.
Summary of the invention
The purpose of this utility model is to overcome the deficiencies in the prior art, provides a kind of structure more reasonable, the three circle on-load voltage regulation power transformers that raw materials consumption is less.
Problem described in the utility model realizes with following technical proposals:
A kind of three circle on-load voltage regulation power transformers, every phase winding constitutes by being sleeved on the low pressure winding on the iron core, middle pressure winding, high pressure winding and pressure regulation winding from inside to outside successively, described pressure regulation winding comprises high pressure pressure regulation winding and the middle pressure pressure regulation winding that is set on the skin, described high pressure pressure regulation winding is divided into identical upper and lower two parts, the middle pressure regulation winding of pressing is positioned in the middle of them, and middle pressure winding is connected by middle pressure shunting switch with middle pressure pressure regulation winding.
Above-mentioned three circle on-load voltage regulation power transformers, the lifting one's head of described low pressure winding, middle pressure winding and high pressure winding by axially drawing.
The utility model is placed on middle pressure tap section the middle part of high pressure voltage regulation coil as voltage regulation coil independently, what take is original idle space, so just reduced the main insulating structure between the mesolow coil, improved the space availability ratio in the transformer, reduced volume of transformer, and each coil ampere-turn equilibrium obviously improves, and reduced horizontal leakage field, improved the anti-short circuit capability of transformer.Simultaneously, choosing of intermediate voltage winding hop count and wire gauge is more flexible, and first head and tap bit copper band are again drawn, and it is simple that the coiling of coil becomes.Compare with tradition three circle on-load voltage regulation power transformers, the utility model can not only save material and expenditure of time, improve processing performance, and avoided because the bonding wire joint is bad and divide wiring to wrap up the various quality problems that insulate and cause, simultaneously, lead-in wire is arranged also attractive in appearance, beautiful than traditional structure.
Description of drawings
Below in conjunction with accompanying drawing the utility model is further specified.
Fig. 1 is the structural representation of the utility model A phase;
Fig. 2 is the intermediate voltage winding elementary diagram.
Each label is among the figure: 1, A is unshakable in one's determination mutually; 2, A phase low pressure winding; 3, A phase high pressure winding; 4, A phase high pressure pressure regulation winding; The middle mutually winding of pressing of La, A; The middle mutually winding of pressing of Lb, B; The middle mutually winding of pressing of Lc, C; The middle mutually pressure regulation winding of pressing of Lta, A; The middle mutually pressure regulation winding of pressing of Ltb, B; The middle mutually pressure regulation winding of pressing of Ltc, C; Ka, Kb, Kc, middle pressure shunting switch.
Embodiment
Referring to Fig. 1, A presses in mutually the tap section to be placed on the middle part of two sections A phase high pressure voltage regulation coils 4 as voltage regulation coil independently, and with the A intermediate voltage winding La coiling of putting together mutually, B is not identical therewith with the structure of C phase mutually.Adopt this structure, the main insulating structure between the mesolow coil needn't increase, and can reduce the volume of transformer, reduces manufacturing cost, and each coil ampere-turn equilibrium obviously improves, and has reduced horizontal leakage field, and the transformer anti-short circuit capability improves.Simultaneously, choosing of intermediate voltage winding hop count and wire gauge is more flexible, and first head and tap bit copper band are again drawn, and it is simple that the coiling of coil becomes.
The utility model high pressure winding adopts a terminal portion outlet structure; The high pressure voltage regulation coil is a two-way.Intermediate voltage winding is a terminal portion outlet structure; In press the tap section to be placed on the middle part of high pressure voltage regulation coil as voltage regulation coil independently, do not put together with intermediate voltage winding, can improve the anti-short circuit capability of transformer.
Referring to Fig. 2, the middle pressure winding L a of three-phase, Lb, Lc and middle pressure pressure regulation winding L ta, Ltb, Ltc are connected by middle pressure shunting switch Ka, Kb, Kc, and middle pressure shunting switch adopts positive and negative accent type not have on-load shunting switch.
Three-winding transformer adopts this structure, can economical with materials consumption, and processing performance is good, saves man-hour, and has avoided because the bonding wire joint is bad and divide wiring wrapping insulation and the various quality problems that cause, and in addition, lead-in wire is arranged attractive in appearance, beautiful than traditional structure.
Claims (2)
1, a kind of three circle on-load voltage regulation power transformers, it is characterized in that, every phase winding constitutes by being sleeved on the low pressure winding on the iron core, middle pressure winding, high pressure winding and pressure regulation winding from inside to outside successively, described pressure regulation winding comprises high pressure pressure regulation winding and the middle pressure pressure regulation winding that is set on the skin, described high pressure pressure regulation winding is divided into identical upper and lower two parts, the middle pressure regulation winding of pressing is positioned in the middle of them, and middle pressure winding is connected by middle pressure shunting switch with middle pressure pressure regulation winding.
2, according to the described three circle on-load voltage regulation power transformers of claim 1, it is characterized in that the lifting one's head of described low pressure winding, middle pressure winding and high pressure winding by axially drawing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201059106U CN201262886Y (en) | 2008-09-16 | 2008-09-16 | Tri-loop loaded voltage regulating transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201059106U CN201262886Y (en) | 2008-09-16 | 2008-09-16 | Tri-loop loaded voltage regulating transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201262886Y true CN201262886Y (en) | 2009-06-24 |
Family
ID=40809363
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201059106U Expired - Fee Related CN201262886Y (en) | 2008-09-16 | 2008-09-16 | Tri-loop loaded voltage regulating transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201262886Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102543397A (en) * | 2010-12-24 | 2012-07-04 | 特变电工沈阳变压器集团有限公司 | Ultrahigh-voltage large-capacity split-winding type transformer |
| CN105655112A (en) * | 2016-03-30 | 2016-06-08 | 常州东芝舒电变压器有限公司 | Regulating winding combination structure of on-load voltage regulating transformer |
-
2008
- 2008-09-16 CN CNU2008201059106U patent/CN201262886Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102543397A (en) * | 2010-12-24 | 2012-07-04 | 特变电工沈阳变压器集团有限公司 | Ultrahigh-voltage large-capacity split-winding type transformer |
| CN102543397B (en) * | 2010-12-24 | 2014-04-23 | 特变电工沈阳变压器集团有限公司 | Ultrahigh-voltage large-capacity split-winding type transformer |
| CN105655112A (en) * | 2016-03-30 | 2016-06-08 | 常州东芝舒电变压器有限公司 | Regulating winding combination structure of on-load voltage regulating transformer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Baoding Tianwei Group Co., Ltd. Assignor: Baoding Tianwei Group Co., Ltd. Contract fulfillment period: 2009.10.20 to 2015.10.20 Contract record no.: 2009130000254 Denomination of utility model: Tri-loop loaded voltage regulating transformer Granted publication date: 20090624 License type: Exclusive license Record date: 20091126 |
|
| LIC | Patent licence contract for exploitation submitted for record |
Free format text: EXCLUSIVE LICENSE; TIME LIMIT OF IMPLEMENTING CONTACT: 2009.10.20 TO 2015.10.20; CHANGE OF CONTRACT Name of requester: HEBEI TIANWEI-HUARUI ELECTRIC CO., LTD. Effective date: 20091126 |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090624 Termination date: 20130916 |