CN105655110B - A kind of single oil box double body auto-transformer - Google Patents
A kind of single oil box double body auto-transformer Download PDFInfo
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- CN105655110B CN105655110B CN201410668743.6A CN201410668743A CN105655110B CN 105655110 B CN105655110 B CN 105655110B CN 201410668743 A CN201410668743 A CN 201410668743A CN 105655110 B CN105655110 B CN 105655110B
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Abstract
The present invention relates to a kind of single oil box double body auto-transformer, double body includes main transformer body and compensator transformer device body, wherein main transformer body has the tertiary winding, low pressure tap-changing windings, public winding and series connection winding, and each winding is by interior arrangement mode outward from iron core column：Tertiary winding low pressure tap-changing windings public winding series connection winding；Compensator transformer device body has compensative winding and field winding, and each winding is by interior arrangement mode outward from iron core column：Compensative winding B field windings J；Main transformer body and compensator transformer device body are placed in same fuel tank.The present invention disclosure satisfy that the requirement of a wide range of pressure regulation, tertiary winding voltage deviation scope can be effectively reduced, improve running quality of the high pressure to the tertiary winding and low pressure to the tertiary winding, not only reduce switching voltage grade, and reduce from number of switches, labor productivity is drastically increased, adds reliability of operation.
Description
Technical field
The present invention relates to technical field of transformer manufacturing, specifically a kind of single oil box double body auto-transformer.
Background technology
At present, power equipment 220KV transformers generally use constant flux voltage regulation at home, and required pressure regulation taps
Number less, pressure regulation tap position it is single.Role very little when this voltage regulating mode is for power network amplitude of variation very little, it is impossible to wink
Between catch power network slight change, simultaneously because transformer is variable flux voltage variation (VFVV), each tap position circle potential is change, the tertiary winding
Voltage deviation it is larger.And current industrial and economy are increasingly flourishing, commercial power is caused to be in great demand, range of regulation is wider,
Single voltage regulating mode can not meet the demand of the bigger transformer of range of regulation requirement.
At present, adjusted using high pressure no-load, low-voltage loaded tune, the single oil box double body 220KV self couplings of tertiary winding band compensation
Transformer Yet-have has no report.
The content of the invention
For single-circuit transformer voltage regulating mode in the prior art it is single, the deficiencies of a wide range of demand can not be met, the present invention
Technical problems to be solved are to provide a kind of single oil box double body auto-transformer that disclosure satisfy that a wide range of pressure regulation requirement.
The technical solution adopted by the present invention is：
A kind of single oil box double body auto-transformer of the present invention, double body include main transformer body and compensator transformer device
Body, wherein main transformer body have the tertiary winding, low pressure tap-changing windings, public winding and series connection winding, and each winding is from iron
Stem is by interior arrangement mode outward：The tertiary winding-low pressure tap-changing windings-public winding-series connection winding；Compensator transformer device
Body has compensative winding and field winding, and each winding is by interior arrangement mode outward from iron core column：Compensative winding-excitatory around
Group；Main transformer body and compensator transformer device body are placed in same fuel tank.
The compensative winding is connected with the tertiary winding, field winding and low pressure pressure regulation winding parallel.
The high-pressure section of auto-transformer uses No-load changer shunting switch, and low-pressure section is opened using on-load voltage regulation tap
Close, voltage regulating mode is neutral point variable flux voltage variation (VFVV) mode；High pressure no-load tap section is positioned in series connection winding.
The operating position of No-load changer shunting switch and on-load tap changer sum is 55~561.
The invention has the advantages that and advantage：
1. because the present invention is neutral point variable flux voltage variation (VFVV) mode, high pressure No-load changer, low-voltage loaded pressure regulation, just run
When not only operating position it is more, and range of regulation is wide and pressure regulation respectively voltage change is small between tap, disclosure satisfy that a wide range of tune
The requirement of pressure；
2. the tertiary winding of the present invention adds compensative winding, tertiary winding voltage deviation scope can be effectively reduced, is carried
Running quality of the high pressure to the tertiary winding and low pressure to the tertiary winding.
3. for three-phase single-circuit transformer, this neutral point variable flux voltage variation (VFVV) mode relative to constant flux voltage regulation mode,
It is to not only reduce switching voltage grade particularly when transformer capacity is larger, and reduces from number of switches.
4. also reducing design, technique and the complexity of production while ensureing properties of product, work is drastically increased
Productivity ratio, add reliability of operation.
Brief description of the drawings
Fig. 1 is main transformer winding arrangement structure schematic diagram of the present invention；
Fig. 2 is compensator transformer winding arrangement structure schematic diagram of the present invention
Fig. 3 is three-phase transformer winding connection schematic diagram of the present invention；
Fig. 4 is that main transformer of the present invention and compensation become single-column coils arrangement and catenation principle figure；
Fig. 5 is loaded switch of the present invention and no load switch elementary diagram.
Wherein, T is the tertiary winding, and L is low pressure tap-changing windings, and D is public winding (i.e. low pressure winding), and G is series connection winding
(i.e. high pressure winding), B are compensative winding, and J is field winding.
Embodiment
With reference to Figure of description, the present invention is further elaborated.
As shown in Figure 1, 2, a kind of single oil box double body auto-transformer of the present invention, double body include main transformer body and
Compensator transformer device body, wherein main transformer body have tertiary winding T, low pressure tap-changing windings L, public winding D and series connection
Winding G, each winding are by interior arrangement mode outward from iron core column：Tertiary winding T- low pressure tap-changing windings L- public windings D is (i.e.
Low pressure winding)-series connection winding G (i.e. high pressure winding)；High pressure no-load tap section is positioned over inside series connection winding.Compensator transformer device
Body has compensative winding B and field winding J, and each winding is by interior arrangement mode outward from iron core column：Compensative winding B-
Field winding J；Main transformer body and compensator transformer device body are placed in same fuel tank.
Compensative winding B connects with tertiary winding T, and field winding J is in parallel with low pressure tap-changing windings L, by adjusting low-pressure adjusting
Winding L both end voltages are pressed, accordingly compensate the voltage of the tertiary winding (Y-Y0).The high-pressure section of auto-transformer uses No-load changer
Shunting switch, low-pressure section use on-load tap changer, and voltage regulating mode is neutral point variable flux voltage variation (VFVV) mode, No-load changer
The operating position of shunting switch and on-load tap changer sum is 55~561.(transformer operating position number is switched
Operating position number limitation, no load switch operating position number be 5~17, loaded switch operating position number be 11~33, therefore,
The work sum of transformer is 5*11=55~17*33=561 when transformer height is run)
For the present embodiment by taking 220KV auto-transformers as an example, high and low pressure shares 5 × 33=165 operating position when running,
Adjustable extent is wider, in addition, the tertiary winding adds compensation, reduces the tertiary winding caused by circle potential change is larger
The larger fluctuation of voltage.
As shown in Fig. 3,4,5, the coils arrangement of each transformer is embodied, also embodies the company between the winding of each transformer
Connect.The invention belongs to neutral point variable flux voltage variation (VFVV) mode, loaded switch electric current leading-out terminal connection neutral bushing HOXO is public
Winding ends connect the polarity selector K of on-load voltage regulating switch, and public winding head end connects low pressure set with connecting together with around end
Pipe；Tertiary winding T is connected in series with compensative winding B, and field winding J head ends connect the polarity selector K of on-load voltage regulating switch, end
End connection loaded switch electric current leading-out terminal.
The operating position number for the no load switch that the present embodiment uses is 5 (± 2 taps), the operating position number of loaded switch
For 33 (± 16 taps), when the high low state of transformer is run, the operating position of no load switch and loaded switch is adjusted, then this becomes
Depressor operating position sum is 5x33=165, i.e., height, which is run, shares 165 each operating positions, and transformer regulating scope is wide, and
Pressure regulation that can be trickle.
When transformer high-voltage-the tertiary winding, low pressure-tertiary winding are run, compensator transformer is to compensate in such a way
Tertiary winding T voltages：When adjusting the operating position of loaded switch, the voltage change at main transformer low pressure tap-changing windings L both ends, by
Become field winding J and main transformer low pressure tap-changing windings L parallel connections in compensation, therefore the voltage for compensating change field winding J both ends is also followed
Respective change, according to electromagnetic induction principle, compensative winding B voltages are also with adjustment.When loaded switch polarity tap selector K connects
"+", forward direction compensation tertiary winding voltage；When loaded switch polarity tap selector K connects "-", negative sense compensation tertiary winding voltage.
And loaded switch slides into different tap positions, the voltage at field winding J both ends is different, and therefore, the tertiary winding compensates
Obtained voltage is also different.
Compensator transformer excitation source is field winding in the present invention, excitatory to change by adjusting the tap of loaded switch
Winding voltage, and then the corresponding voltage for compensating the tertiary winding, make tertiary winding voltage output voltage be in stable level.
Further, since transformer is variable flux voltage variation (VFVV), the tap position circle potential of each shunting switch is change, and the present invention exists
Tertiary winding series compensation winding, solve the problems, such as that the voltage deviation of the tertiary winding is big well.
Claims (3)
- A kind of 1. single oil box double body auto-transformer, it is characterised in that：Double body includes main transformer body and compensation transformation Device device body, wherein main transformer body have the tertiary winding, low pressure tap-changing windings, public winding and series connection winding, each winding It is from iron core column by interior arrangement mode outward：The tertiary winding-low pressure tap-changing windings-public winding-series connection winding；Compensate transformation Device device body has compensative winding and field winding, and each winding is by interior arrangement mode outward from iron core column：Compensative winding-swash Magnetic winding；Main transformer body and compensator transformer device body are placed in same fuel tank；No load switch operating position number be 5~ 17, loaded switch operating position number is 11~33；The compensative winding is connected with the tertiary winding, field winding and low pressure pressure regulation winding parallel.
- 2. the single oil box double body auto-transformer as described in claim 1, it is characterised in that：The high-voltage section of auto-transformer Divide and use No-load changer shunting switch, low-pressure section uses on-load tap changer, and voltage regulating mode is that neutral point becomes magnetic flux tune Pressure mode；High pressure no-load tap section is positioned in series connection winding.
- 3. the single oil box double body auto-transformer as described in claim 1, it is characterised in that：No-load changer shunting switch and The operating position sum of on-load tap changer is 55~561.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410668743.6A CN105655110B (en) | 2014-11-20 | 2014-11-20 | A kind of single oil box double body auto-transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201410668743.6A CN105655110B (en) | 2014-11-20 | 2014-11-20 | A kind of single oil box double body auto-transformer |
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| CN105655110A CN105655110A (en) | 2016-06-08 |
| CN105655110B true CN105655110B (en) | 2017-12-19 |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109727753A (en) * | 2017-10-27 | 2019-05-07 | 特变电工沈阳变压器集团有限公司 | A kind of extra-high voltage auto-transformer of pressure regulation excitation |
| CN110706909B (en) * | 2018-07-10 | 2022-07-22 | 特变电工沈阳变压器集团有限公司 | Autotransformer with novel voltage regulation mode and voltage regulation method thereof |
| CN109524224B (en) * | 2018-12-06 | 2020-05-01 | 中铁电气化局集团有限公司 | Separated common-box type auto-transformer |
| CN111987722A (en) * | 2019-05-21 | 2020-11-24 | 青岛振洁电力科技有限公司 | Electronic intelligent on-load tap changing transformer |
| CN111540592A (en) * | 2020-06-08 | 2020-08-14 | 保定天威保变电气股份有限公司 | 500kV single-phase on-load tap changing autotransformer with built-in compensation transformer |
| CN111816426A (en) * | 2020-06-09 | 2020-10-23 | 山东电力设备有限公司 | Voltage compensation structure of variable magnetic flux voltage regulating autotransformer third winding and transformer |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101256891A (en) * | 2007-12-28 | 2008-09-03 | 保定天威集团有限公司 | Extra-high voltage single-phase autotransformer |
| CN101651030A (en) * | 2009-08-07 | 2010-02-17 | 中国西电电气股份有限公司 | Autotransformer with low-voltage compensation |
| CN201562545U (en) * | 2009-11-05 | 2010-08-25 | 保定天威集团有限公司 | Winding wiring structure for self-coupled loaded voltage regulating transformer with double bodies |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58212112A (en) * | 1982-06-03 | 1983-12-09 | Toshiba Corp | Split type auto-transformer |
| JPH01222418A (en) * | 1988-03-02 | 1989-09-05 | Hitachi Ltd | Transformer equipped with voltage adjusting device |
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2014
- 2014-11-20 CN CN201410668743.6A patent/CN105655110B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101256891A (en) * | 2007-12-28 | 2008-09-03 | 保定天威集团有限公司 | Extra-high voltage single-phase autotransformer |
| CN101651030A (en) * | 2009-08-07 | 2010-02-17 | 中国西电电气股份有限公司 | Autotransformer with low-voltage compensation |
| CN201562545U (en) * | 2009-11-05 | 2010-08-25 | 保定天威集团有限公司 | Winding wiring structure for self-coupled loaded voltage regulating transformer with double bodies |
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| CN105655110A (en) | 2016-06-08 |
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