CN106653331A - Constant and variable flux common-core three-winding autotransformer - Google Patents
Constant and variable flux common-core three-winding autotransformer Download PDFInfo
- Publication number
- CN106653331A CN106653331A CN201611087134.7A CN201611087134A CN106653331A CN 106653331 A CN106653331 A CN 106653331A CN 201611087134 A CN201611087134 A CN 201611087134A CN 106653331 A CN106653331 A CN 106653331A
- Authority
- CN
- China
- Prior art keywords
- winding
- magnetic flux
- voltage
- core limb
- pressure winding
- 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
- H01F29/00—Variable transformers or inductances not covered by group H01F21/00
- H01F29/02—Variable transformers or inductances not covered by group H01F21/00 with tappings on coil or winding; with provision for rearrangement or interconnection of windings
-
- 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
- H01F27/24—Magnetic cores
-
- 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
Abstract
The invention relates to a constant and variable flux common-core three-winding autotransformer, and belongs to the technical field of manufacturing of transformers. According to the technical scheme, a constant flux core limb (23) is sequentially provided with an exciting winding (22) and a high-voltage winding (21) from inside to outside; and a variable flux core limb (26) is sequentially provided with a low-voltage winding (25), a voltage regulation winding (24), an adjustable string winding (27) and a medium-voltage winding (28) from inside to outside. When voltage regulation is carried out at a high voltage side, medium and low voltage is maintained constant; the insulation level of a load switch is effectively reduced by adopting a method of combining neutral point voltage regulation and inductive voltage regulation; the windings free of voltage regulation are put on the constant flux core limb to maintain the voltage constant; the target that one core is shared by a constant flux winding and a variable flux winding is achieved by adopting a dual-main post single-core structure; the cost is reduced; the voltage is stable; and the constant and variable flux common-core three-winding autotransformer can be widely used for extra/ultra high-voltage transmission and transformation systems.
Description
Technical field
The present invention relates to a kind of self coupling three-winding transformer that is permanent, becoming the common iron core of magnetic flux, belongs to Transformer Manufacturing Technology neck
Domain.
Background technology
The terminal voltage of super, extra-high voltage electric transmission and transformation transformer is too high, and pressure regulation is difficult, generally adopts neutral point variable flux voltage variation (VFVV),
Required with the dielectric level for reducing tap changer, but, the problem for thus bringing low voltage voltage to fluctuate；Ask to solve voltage pulsation
Topic, must generally give the winding of voltage pulsation, and a set of compensative winding is arranged on another iron core, there is complex structure, system
The problems such as making high cost, spread of voltage.
The content of the invention
It is an object of the present invention to provide a kind of self coupling three-winding transformer that is permanent, becoming the common iron core of magnetic flux, using neutral point pressure regulation
Mode in combination with Induction Regulation is effectively reduced the dielectric level of loaded switch, and the winding of not pressure regulation is placed in into permanent magnetic flux iron
On stem, to maintain its voltage constant, using the singlecore structure of double principal posts, to realize that permanent magnetic flux and change magnetic flux winding share one
Individual iron core, reduces cost, voltage stabilization solves the problems referred to above present in background technology.
The technical scheme is that：
It is a kind of it is permanent, become magnetic flux self coupling three-winding transformer unshakable in one's determination altogether, comprising high pressure winding, Exciting Windings for Transverse Differential Protection, become magnetic flux core limb,
Tap-changing windings, low pressure winding, permanent magnetic flux core limb, tune string winding, middle pressure winding and fuel tank, the fuel tank inner iron core list of double principal posts
Core construction, one of post is permanent magnetic flux core limb, and, to become magnetic flux core limb, permanent magnetic flux core limb is from inside to outside for another post
Exciting Windings for Transverse Differential Protection and high pressure winding are sequentially arranged, are become magnetic flux core limb and is sequentially arranged low pressure winding, tap-changing windings from inside to outside, adjusts string
Winding and middle pressure winding；The middle pressure winding on high pressure winding and change magnetic flux core limb on permanent magnetic flux core limb is coupled into self coupling,
Become in parallel with Exciting Windings for Transverse Differential Protection after the tap-changing windings on magnetic flux core limb are concatenated with tune string winding, to the high pressure on permanent magnetic flux core limb
Winding provide excitation, tap-changing windings connection shunting switch, by shunting switch adjust tap-changing windings the number of turn with change excitation around
The terminal voltage of group, so that the voltage of high pressure winding is adjusted；In high pressure winding pressure regulation, middle pressure winding, low pressure winding position
In becoming on magnetic flux core limb, voltages keep constant is constant.
The shunting switch is single-phase tap changer, is arranged on transformer end.
The invention has the beneficial effects as follows：The present invention when high-pressure side carries out pressure regulation, in maintenance, low voltage voltage it is constant, adopt
Mode of the neutral point pressure regulation in combination with Induction Regulation is effectively reduced the dielectric level of loaded switch, and the winding of not pressure regulation is put
On permanent magnetic flux core limb, to maintain its voltage constant, using the singlecore structure of double principal posts, to realize permanent magnetic flux and become magnetic flux
Winding shares an iron core, and reduces cost, voltage stabilization can be widely used in super, extra-high voltage electric transmission and transformation system.
Description of the drawings
Fig. 1 is embodiment of the present invention device body coils arrangement figure；
Fig. 2 is embodiment of the present invention electrical wiring schematic diagram；
In figure：High pressure winding 21, Exciting Windings for Transverse Differential Protection 22, permanent magnetic flux core limb 23, tap-changing windings 24, low pressure winding 25, change magnetic flux iron
Stem 26, tune string winding 27, middle pressure winding 28, fuel tank 29, shunting switch 30.
Specific embodiment
Below in conjunction with accompanying drawing, by embodiment, the invention will be further described.
A kind of self coupling three-winding transformer that is permanent, becoming the common iron core of magnetic flux, comprising high pressure winding 21, Exciting Windings for Transverse Differential Protection 22, becomes magnetic
Logical core limb 26, tap-changing windings 24, low pressure winding 25, permanent magnetic flux core limb 23, tune string winding 27, middle pressure winding 28 and fuel tank
29, the inner iron core of the fuel tank 29 singlecore structure of double principal posts, one of post is permanent magnetic flux core limb 23, and another post is change magnetic
Logical core limb 26, permanent magnetic flux core limb 23 is sequentially arranged from inside to outside Exciting Windings for Transverse Differential Protection 22 and high pressure winding 21, becomes magnetic flux core limb
26 are sequentially arranged from inside to outside low pressure winding 25, tap-changing windings 24, adjust string winding 27 and middle pressure winding 28；Permanent magnetic flux core limb 23
On high pressure winding 21 and become middle pressure winding 28 on magnetic flux core limb 26 into self coupling connection, become the pressure regulation on magnetic flux core limb 26
Winding 24 is in parallel with Exciting Windings for Transverse Differential Protection 22 after concatenating with tune string winding 27, provides to the high pressure winding 21 on permanent magnetic flux core limb 23 and encourages
Magnetic, the connection shunting switch 30 of tap-changing windings 24 adjusts the number of turn of tap-changing windings 24 to change Exciting Windings for Transverse Differential Protection by shunting switch 30
22 terminal voltage, so that the voltage of high pressure winding 21 is adjusted；In high pressure winding pressure regulation, middle pressure winding, low pressure winding
Positioned at becoming on magnetic flux core limb 26, voltages keep constant is constant.
The shunting switch 30 is single-phase tap changer, is arranged on transformer end.
Embodiment includes low pressure winding LV, middle pressure winding MV, high pressure winding HV, tap-changing windings TV, tune string winding BV, excitation
Winding EV, iron core, fuel tank.Wherein unshakable in one's determination is double main pole structures, and two windings are cased with one of principal post, and coils arrangement is suitable
Sequence is followed successively by from inside to outside：Permanent magnetic flux core limb-Exciting Windings for Transverse Differential Protection EV-high pressure winding HV；Be cased with another principal post four around
Group, coils arrangement order is followed successively by from inside to outside：Become magnetic flux core limb-low pressure winding LV-tap-changing windings TV-tune string winding
BV-middle pressure winding MV.Transformer end is provided with a single-phase shunting switch, and the change magnetic flux for high-pressure side or medium voltage side is adjusted
Pressure.
Claims (2)
1. a kind of permanent, change magnetic flux is total to self coupling three-winding transformer unshakable in one's determination, it is characterised in that comprising high pressure winding（21）, excitation around
Group（22）, become magnetic flux core limb（26）, tap-changing windings（24）, low pressure winding（25）, permanent magnetic flux core limb（23）, adjust string winding
（27）, middle pressure winding（28）And fuel tank（29）, fuel tank（29）Inner iron core uses the singlecore structure of double principal posts, one of post to be change
Magnetic flux core limb（26）, another post is permanent magnetic flux core limb（23）, permanent magnetic flux core limb（23）It is sequentially arranged from inside to outside and encourages
Magnetic winding（22）With high pressure winding（21）, become magnetic flux core limb（26）Low pressure winding is sequentially arranged from inside to outside（25）, pressure regulation around
Group（24）, adjust string winding（27）With middle pressure winding（28）；Permanent magnetic flux core limb（23）On high pressure winding（21）With change magnetic flux iron
Stem（26）On middle pressure winding（28）For self coupling connection, become magnetic flux core limb（26）On tap-changing windings（24）With tune string winding
（27）With Exciting Windings for Transverse Differential Protection after concatenation（22）Parallel connection, to permanent magnetic flux core limb（23）On high pressure winding（21）Excitation, pressure regulation are provided
Winding（24）Connection shunting switch（30）, by shunting switch（30）Adjust tap-changing windings（24）The number of turn changing Exciting Windings for Transverse Differential Protection
（22）Terminal voltage so that high pressure winding（21）Voltage adjusted；In high pressure winding pressure regulation, middle pressure winding, low pressure
Winding is located at and becomes magnetic flux core limb（26）On, voltages keep constant is constant.
2. a kind of permanent, change magnetic flux according to claim 1 is total to self coupling three-winding transformer unshakable in one's determination, it is characterised in that：Institute
State shunting switch（30）For single-phase tap changer, transformer end is arranged on.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611087134.7A CN106653331A (en) | 2016-12-01 | 2016-12-01 | Constant and variable flux common-core three-winding autotransformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611087134.7A CN106653331A (en) | 2016-12-01 | 2016-12-01 | Constant and variable flux common-core three-winding autotransformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106653331A true CN106653331A (en) | 2017-05-10 |
Family
ID=58813874
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611087134.7A Pending CN106653331A (en) | 2016-12-01 | 2016-12-01 | Constant and variable flux common-core three-winding autotransformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106653331A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108346506A (en) * | 2018-05-07 | 2018-07-31 | 江苏华鹏变压器有限公司 | A kind of determination method of potential device and series transformer umber of turn |
| CN117690708A (en) * | 2024-02-04 | 2024-03-12 | 南京立业电力变压器有限公司 | Novel single-phase single-core series-change voltage regulating electric furnace transformer |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5740910A (en) * | 1980-08-26 | 1982-03-06 | Hitachi Ltd | Transformer |
| CN202034213U (en) * | 2010-12-30 | 2011-11-09 | 保定天威集团有限公司 | Auto-coupling and induction on-load voltage-regulating transformer |
| CN103730240A (en) * | 2013-12-25 | 2014-04-16 | 保定天威保变电气股份有限公司 | Variable-flux voltage regulating auto transformer for maintaining constant low voltage |
-
2016
- 2016-12-01 CN CN201611087134.7A patent/CN106653331A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5740910A (en) * | 1980-08-26 | 1982-03-06 | Hitachi Ltd | Transformer |
| CN202034213U (en) * | 2010-12-30 | 2011-11-09 | 保定天威集团有限公司 | Auto-coupling and induction on-load voltage-regulating transformer |
| CN103730240A (en) * | 2013-12-25 | 2014-04-16 | 保定天威保变电气股份有限公司 | Variable-flux voltage regulating auto transformer for maintaining constant low voltage |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108346506A (en) * | 2018-05-07 | 2018-07-31 | 江苏华鹏变压器有限公司 | A kind of determination method of potential device and series transformer umber of turn |
| CN117690708A (en) * | 2024-02-04 | 2024-03-12 | 南京立业电力变压器有限公司 | Novel single-phase single-core series-change voltage regulating electric furnace transformer |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101256891B (en) | Extra-high voltage single-phase autotransformer | |
| CN105719799B (en) | A kind of transformer with split winding | |
| CN101697312B (en) | Low-voltage dual-voltage on-load-tap-changing auto-transformer | |
| CN102097813B (en) | Hybrid excitation triggered double exciting winding MCR (magnetically controlled reactor) | |
| CN105655110B (en) | A kind of single oil box double body auto-transformer | |
| CN106653331A (en) | Constant and variable flux common-core three-winding autotransformer | |
| CN103730240A (en) | Variable-flux voltage regulating auto transformer for maintaining constant low voltage | |
| CN103680883A (en) | 500kV-level split on-load voltage regulation power transformer | |
| CN201508760U (en) | On-load tap changer of high voltage D connection | |
| CN103187145A (en) | Crossed iron core type controlled reactor | |
| CN104953909B (en) | The middle pressure pressure regulation method and power auto-transformer of power auto-transformer | |
| CN203415390U (en) | Voltage-regulating transformer for realizing high-insulation and large-current on-load voltage regulation | |
| CN206210586U (en) | A kind of self coupling three-winding transformer that is permanent, becoming the common iron core of magnetic flux | |
| CN104361984B (en) | The constant flux voltage regulation structure of supertension self coupling power transformer | |
| CN106504864B (en) | A kind of single-phase high voltage variable flux voltage variation (VFVV) auto-transformer | |
| CN205943712U (en) | Self coupling power transformer on -load voltage regulation structure of cancellation tertiary winding | |
| CN202034213U (en) | Auto-coupling and induction on-load voltage-regulating transformer | |
| CN106816294B (en) | A kind of double high pressures share the Multifunction transformer of a voltage regulation coil | |
| CN112750603A (en) | Voltage regulating method of high-voltage side of autotransformer, transformer body structure and autotransformer | |
| CN101968994A (en) | Double-ring on-load tap changer with ultrahigh impedance of 110 kV | |
| CN2857175Y (en) | Neutral auto-transformer having constant third side voltage | |
| CN209216746U (en) | A kind of inverse Scott Transformer | |
| CN211828422U (en) | Self-coupling transformer and body structure thereof | |
| CN108666116A (en) | The middle pressure pressure regulation method of power auto-transformer | |
| CN202422974U (en) | On-load voltage regulation 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 | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20170510 |