CN107068364A - It is a kind of to balance the power transformer of winding outside - Google Patents
It is a kind of to balance the power transformer of winding outside Download PDFInfo
- Publication number
- CN107068364A CN107068364A CN201710273458.8A CN201710273458A CN107068364A CN 107068364 A CN107068364 A CN 107068364A CN 201710273458 A CN201710273458 A CN 201710273458A CN 107068364 A CN107068364 A CN 107068364A
- Authority
- CN
- China
- Prior art keywords
- winding
- balance
- outside
- high pressure
- power transformer
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/34—Special means for preventing or reducing unwanted electric or magnetic effects, e.g. no-load losses, reactive currents, harmonics, oscillations, leakage fields
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/28—Coils; Windings; Conductive connections
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/28—Coils; Windings; Conductive connections
- H01F27/30—Fastening or clamping coils, windings, or parts thereof together; Fastening or mounting coils or windings on core, casing, or other support
- H01F27/306—Fastening or mounting coils or windings on core, casing or other support
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/34—Special means for preventing or reducing unwanted electric or magnetic effects, e.g. no-load losses, reactive currents, harmonics, oscillations, leakage fields
- H01F27/38—Auxiliary core members; Auxiliary coils or windings
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Coils Of Transformers For General Uses (AREA)
Abstract
Winding power transformer outside is balanced the present invention relates to a kind of, from inside to outside respectively core limb, low pressure winding, high pressure winding, balance winding.Balance winding is arranged in transformer body outermost layer by the present invention, effectively reduces the average width of each winding to radius.
Description
Technical field
It is particularly a kind of to balance the power transformer of winding outside the present invention relates to transformer device structure field.
Background technology
When a secondary side of large-scale three-phase power transformer is using " Yy " joint group, in order to be provided to triple harmonic current
Circulation path, and when preventing three-phase load unbalance, neutral point shifts, it is necessary to plus the balance winding that " D " is coupled, it
The connection principle that constitutes as shown in Figure of description 1, form the joint group of " YNy0+d ".
The capacity of balance winding generally takes the 1/3 of transformer rated capacity.Arranged and be accustomed to according to traditional transformer winding, put down
Weighing apparatus winding is placed near core side, and core limb, balance winding, low pressure winding, high pressure winding are followed successively by from inside to outside.But increase
After balance winding, low pressure winding, the average width of high pressure winding, with the big many of time-varying, not only increase transformer to radius
Production cost, also increases the operating cost of transformer.
The content of the invention
In view of this, the power transformer of winding outside is balanced the purpose of the present invention is to propose to a kind of, balance winding cloth
Put in transformer body outermost layer, effectively reduce the average width of each winding to radius.
The present invention is realized using following scheme：It is a kind of to balance winding power transformer outside, respectively iron from inside to outside
Stem, low pressure winding, high pressure winding, balance winding.
When transformer normal work, operating current is almost nil on balance winding, will not be to the load loss of transformer
Produce influence；The load loss of transformer is determined by the resistance loss and added losses of high-low pressure winding.
Further, when using independent tap-changing windings, the high pressure winding includes high pressure main winding and high pressure pressure regulation
Winding.
Further, between each winding, between winding and iron core, oil-paper combination insulation is used between winding and fuel tank
Isolated.
Compared with prior art, the invention has the advantages that;
1st, the present invention reduces high pressure winding, the average width of low pressure winding to radius.Winding conducting wire accordingly reduces per circle length.
2nd, in the case of the same number of turn, the total length of wire of the present invention also accordingly reduces, and saves copper cash usage amount.Lead
The resistance and length of line are directly proportional, and as total length shortens, resistance loss is accordingly reduced.
3rd, high-low pressure winding of the invention is away from the oil tank wall of transformer, and the leakage field for reducing winding generation enters transformation
The amount of device oil tank wall, reduces stray loss.
Brief description of the drawings
Fig. 1 is prior art elementary diagram of the invention.
Fig. 2 is coils arrangement schematic diagram in the embodiment of the present invention.
Embodiment
Below in conjunction with the accompanying drawings and embodiment the present invention will be further described.
As shown in Figure 2（A phase structure is only drawn in figure, three-phase is identical）, present embodiments provide a kind of balance winding outside
Power transformer, from inside to outside respectively core limb, low pressure winding, high pressure winding, balance winding.
When transformer normal work, operating current is almost nil on balance winding, will not be to the load loss of transformer
Produce influence；The load loss of transformer is determined by the resistance loss and added losses of high-low pressure winding.
In the present embodiment, when using independent tap-changing windings, the high pressure winding includes high pressure main winding and high pressure
Tap-changing windings.
In the present embodiment, between each winding, between winding and iron core, it is combined between winding and fuel tank using oilpaper
Insulation is isolated.
The foregoing is only presently preferred embodiments of the present invention, all equivalent changes done according to scope of the present invention patent with
Modification, should all belong to the covering scope of the present invention.
Claims (3)
1. a kind of balance the power transformer of winding outside, it is characterised in that：From inside to outside be respectively core limb, low pressure winding,
High pressure winding, balance winding.
2. a kind of power transformer of balance winding according to claim 1 outside, it is characterised in that：When using independent tune
When pressing winding, the high pressure winding includes high pressure main winding and high pressure tap-changing windings.
3. a kind of power transformer of balance winding according to claim 1 outside, it is characterised in that：Each winding it
Between, isolated using oil-paper combination insulation between winding and iron core, between winding and fuel tank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710273458.8A CN107068364A (en) | 2017-04-25 | 2017-04-25 | It is a kind of to balance the power transformer of winding outside |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710273458.8A CN107068364A (en) | 2017-04-25 | 2017-04-25 | It is a kind of to balance the power transformer of winding outside |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107068364A true CN107068364A (en) | 2017-08-18 |
Family
ID=59605416
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710273458.8A Pending CN107068364A (en) | 2017-04-25 | 2017-04-25 | It is a kind of to balance the power transformer of winding outside |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107068364A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009034179A2 (en) * | 2007-09-12 | 2009-03-19 | Texas Instruments (Cork) Limited | A transformer assembly |
| CN201397727Y (en) * | 2009-05-21 | 2010-02-03 | 张鑫 | Clamping structure of transformer iron core |
| CN201820615U (en) * | 2010-09-27 | 2011-05-04 | 中国西电电气股份有限公司 | Winding arrangement structure with balanced transformer |
| CN202796399U (en) * | 2012-08-23 | 2013-03-13 | 广州西门子变压器有限公司 | Transformer with balance coil |
| 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 |
| CN203644515U (en) * | 2013-12-02 | 2014-06-11 | 中电电气(江苏)股份有限公司 | Transformer winding structure |
-
2017
- 2017-04-25 CN CN201710273458.8A patent/CN107068364A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009034179A2 (en) * | 2007-09-12 | 2009-03-19 | Texas Instruments (Cork) Limited | A transformer assembly |
| CN201397727Y (en) * | 2009-05-21 | 2010-02-03 | 张鑫 | Clamping structure of transformer iron core |
| CN201820615U (en) * | 2010-09-27 | 2011-05-04 | 中国西电电气股份有限公司 | Winding arrangement structure with balanced transformer |
| CN202796399U (en) * | 2012-08-23 | 2013-03-13 | 广州西门子变压器有限公司 | Transformer with balance coil |
| CN203644515U (en) * | 2013-12-02 | 2014-06-11 | 中电电气(江苏)股份有限公司 | Transformer winding structure |
| 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 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106783107B (en) | A kind of hybrid distribution transformer decoupling magnetic integration apparatus | |
| CN105719799A (en) | Split-winding transformer | |
| CN203232785U (en) | Dry-type transformer | |
| CN103811160A (en) | Four split transformer | |
| US11587719B2 (en) | Magnetic integrated hybrid distribution transformer | |
| CN204117774U (en) | A kind of transformer with split winding | |
| CN207319890U (en) | A kind of Vv Connection Traction Transformers of three column machine body structure of two-phase | |
| CN109346301A (en) | A kind of balancing transformer and its method of supplying power to based on the type of falling A wiring | |
| CN101640120A (en) | Transformer changing from three phases to single phase | |
| CN102543398B (en) | Transformer for realizing voltage change through changeover of leads | |
| CN201444443U (en) | Transformer capable of controlling part of voltage | |
| CN107068364A (en) | It is a kind of to balance the power transformer of winding outside | |
| CN203026330U (en) | Four-split transformer | |
| CN205943688U (en) | Rectifier transformer is pull to many windings dry -type | |
| CN201498348U (en) | Triphase-to-single-phase transformer | |
| CN201812647U (en) | Dry type grounding transformer | |
| CN209297901U (en) | A kind of tractive transformer | |
| CN109741924B (en) | Traction transformer | |
| CN106783109A (en) | A kind of Inverter Experimental transformer | |
| CN111540594A (en) | Ultrahigh-voltage high-capacity phase-shifting transformer and structural arrangement method thereof | |
| CN201838436U (en) | Double-voltage oil-immersed transformer | |
| CN205984596U (en) | Polycrystalline silicon is dry -type transformer for electric stove | |
| CN206098118U (en) | Metallic glass iron core transformer insulation system | |
| CN105225805A (en) | T wiring balancing transformer | |
| CN108666116A (en) | The middle pressure pressure regulation method of power auto-transformer |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170818 |
|
| RJ01 | Rejection of invention patent application after publication |