CN106504864B - A kind of single-phase high voltage variable flux voltage variation (VFVV) auto-transformer - Google Patents
A kind of single-phase high voltage variable flux voltage variation (VFVV) auto-transformer Download PDFInfo
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- CN106504864B CN106504864B CN201611087139.XA CN201611087139A CN106504864B CN 106504864 B CN106504864 B CN 106504864B CN 201611087139 A CN201611087139 A CN 201611087139A CN 106504864 B CN106504864 B CN 106504864B
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- 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
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- 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
- 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
- H01F29/025—Constructional details of transformers or reactors with tapping on coil or windings
Abstract
The present invention relates to a kind of single-phase high voltage variable flux voltage variation (VFVV) auto-transformers, belong to technical field of transformer manufacturing.Technical solution is: setting gradually series connection winding (4), public winding (3) and tap-changing windings (2) from inside to outside on iron core column (1), set gradually the tertiary winding (7) and excitation winding (6) from inside to outside on iron core side pole (5), it is in parallel with excitation winding (6) on iron core side pole (5) after public winding (3), tap-changing windings (2) series connection on iron core column (1)；Tap-changing windings (2) are arranged in neutral point, excitation winding (6) public winding (3) head end constant with voltage connects, and while realizing high pressure variable flux voltage variation (VFVV), the tertiary winding keeps voltage constant.While the present invention realizes high pressure variable flux voltage variation (VFVV), the tertiary winding can keep voltage constant.Meanwhile realizing the short-circuit impedance between tertiary winding associated winding pair and being greater than 100%, improve the short-circuit tolerance of the tertiary winding.
Description
Technical field
The present invention relates to a kind of single-phase high voltage variable flux voltage variation (VFVV) auto-transformers, belong to technical field of transformer manufacturing.
Background technique
In high-voltage power system, a kind of single-phase high voltage variable flux voltage variation (VFVV) auto-transformer is needed, i.e. tap-changing windings are set
It sets in neutral point, to realize high pressure variable flux voltage variation (VFVV) and keep tap-changing windings (and tap switch) dielectric level lower, guarantees simultaneously
Tertiary winding voltage is invariable.In addition, the tertiary winding is arranged in other column, realize short between tertiary winding associated winding pair
Roadlock is anti-to can achieve 100% or more, and to guarantee that the tertiary winding has enough short-circuit tolerances, background technique is without in this way
The transformer of structure.
Summary of the invention
It is an object of the present invention to provide a kind of single-phase high voltage variable flux voltage variation (VFVV) auto-transformers, by changing winding connection knot
Structure realizes the single-phase autotransformer of the constant high pressure variable flux voltage variation (VFVV) of tertiary winding voltage, solves present in background technique
The above problem.
The technical scheme is that
A kind of single-phase high voltage variable flux voltage variation (VFVV) auto-transformer includes iron core column, tap-changing windings, public winding, series connection
Winding, iron core side pole, excitation winding and the tertiary winding, the machine body structure being equipped in the single box fuel tank of transformer, using one
Single-phase iron core sets gradually series connection winding, public winding and tap-changing windings, on iron core side pole from inside to outside on iron core column
The tertiary winding and excitation winding are set gradually from inside to outside, after the public winding, tap-changing windings series connection on iron core column, with iron core
Excitation winding on other column is in parallel；Tap-changing windings are arranged in neutral point, the tertiary winding is arranged on single-phase iron core side pole, encourages
The magnetic winding public winding head end constant with voltage connects, and while realizing high pressure variable flux voltage variation (VFVV), the tertiary winding keeps voltage
It is constant.
Series connection winding is connected with public winding as self coupling structure.
The beneficial effects of the present invention are: by the way that by tap-changing windings setting, in neutral point, the tertiary winding is arranged in single-phase iron core
On other column, while realizing high pressure variable flux voltage variation (VFVV), the tertiary winding can keep voltage constant.Meanwhile it realizing and third
Short-circuit impedance is greater than 100% between winding associated winding pair, improves the short-circuit tolerance of the tertiary winding.
Detailed description of the invention
Fig. 1 is connection principle schematic diagram of the embodiment of the present invention；
In figure: iron core column 1, tap-changing windings 2, public winding 3, series connection winding 4, iron core side pole 5, excitation winding 6, third
Winding 7.
Specific embodiment
Below in conjunction with attached drawing, the invention is further illustrated by the examples.
A kind of single-phase high voltage variable flux voltage variation (VFVV) auto-transformer includes iron core column 1, tap-changing windings 2, public winding 3, string
Join winding 4, iron core side pole 5, excitation winding 6 and the tertiary winding 7, the machine body structure being equipped in the single box fuel tank of transformer is adopted
With a single-phase iron core, series connection winding 4, public winding 3 and tap-changing windings 2 are set gradually from inside to outside on iron core column 1,
The tertiary winding 7 and excitation winding 6 are set gradually on iron core side pole 5 from inside to outside, the public winding 3, pressure regulation on iron core column 1 around
It is in parallel with the excitation winding 6 on iron core side pole 5 after 2 series connection of group；By the setting of tap-changing windings 2 in neutral point, the tertiary winding 7 is arranged
On single-phase iron core side pole 5, public winding 3 head end constant with voltage of excitation winding 6 is connected, and realizes high pressure variable flux voltage variation (VFVV)
While, the tertiary winding keeps voltage constant.
In embodiment, series connection winding 4 is connected with public winding 3 as self coupling structure；Tap-changing windings 2 are arranged in neutral point
End, the head end of excitation winding 6 are connected to the head end of public winding 3, and the end of excitation winding 6 is connected to neutral end.
In this way, not only reduced tap-changing windings (and tap switch) dielectric level, but also guarantee that tertiary winding voltage is constant, also makes the
Three winding associated impedances are very big, improve the enough short-circuit tolerances of the tertiary winding.
In addition, the machine body structure being equipped in single box fuel tank using the transformer of such wiring construction, wherein
Public winding 3 and series connection winding 4 and tap-changing windings 2 are sequentially arranged in from inside to outside on single-phase iron core column 1, are encouraged
Magnetic winding 6 and the tertiary winding 7 are sequentially arranged in from inside to outside on single-phase iron core side pole 5.
Claims (2)
1. a kind of single-phase high voltage variable flux voltage variation (VFVV) auto-transformer, it is characterised in that: include iron core column (1), tap-changing windings
(2), public winding (3), series connection winding (4), iron core side pole (5), excitation winding (6) and the tertiary winding (7), single case of transformer
The machine body structure being equipped in formula fuel tank, using a single-phase iron core, on iron core column (1) from inside to outside set gradually series connection around
Group (4), public winding (3) and tap-changing windings (2) set gradually the tertiary winding (7) from inside to outside and are encouraged on iron core side pole (5)
Magnetic winding (6), after the public winding (3), tap-changing windings (2) series connection on iron core column (1), with the excitation on iron core side pole (5)
Winding (6) is in parallel；Tap-changing windings (2) are arranged in neutral point, the tertiary winding (7) is arranged on single-phase iron core side pole (5), encourages
Magnetic winding (6) public winding (3) head end constant with voltage connects, and while realizing high pressure variable flux voltage variation (VFVV), the tertiary winding is protected
It is constant to hold voltage.
2. a kind of single-phase high voltage variable flux voltage variation (VFVV) auto-transformer according to claim 1, it is characterised in that: series connection winding
(4) it connects with public winding (3) as self coupling structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611087139.XA CN106504864B (en) | 2016-12-01 | 2016-12-01 | A kind of single-phase high voltage variable flux voltage variation (VFVV) auto-transformer |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611087139.XA CN106504864B (en) | 2016-12-01 | 2016-12-01 | A kind of single-phase high voltage variable flux voltage variation (VFVV) auto-transformer |
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| Publication Number | Publication Date |
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| CN106504864A CN106504864A (en) | 2017-03-15 |
| CN106504864B true CN106504864B (en) | 2019-02-12 |
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| CN201611087139.XA Active CN106504864B (en) | 2016-12-01 | 2016-12-01 | A kind of single-phase high voltage variable flux voltage variation (VFVV) auto-transformer |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| 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 |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6156405A (en) * | 1984-08-28 | 1986-03-22 | Mitsubishi Electric Corp | 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 |
| CN102420043A (en) * | 2011-12-05 | 2012-04-18 | 保定天威集团有限公司 | Single-phase high-impedance auto-transformer |
| CN103050261A (en) * | 2012-12-24 | 2013-04-17 | 保定天威保变电气股份有限公司 | High voltage regulating autotransformer |
| 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 |
| CN104752043A (en) * | 2015-04-03 | 2015-07-01 | 正泰电气股份有限公司 | Voltage regulating method for three-phase loaded voltage-regulating self-coupling transformer |
| CN206210553U (en) * | 2016-12-01 | 2017-05-31 | 保定天威保变电气股份有限公司 | A kind of single-phase high voltage variable flux voltage variation (VFVV) auto-transformer |
-
2016
- 2016-12-01 CN CN201611087139.XA patent/CN106504864B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6156405A (en) * | 1984-08-28 | 1986-03-22 | Mitsubishi Electric Corp | 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 |
| CN102420043A (en) * | 2011-12-05 | 2012-04-18 | 保定天威集团有限公司 | Single-phase high-impedance auto-transformer |
| CN103050261A (en) * | 2012-12-24 | 2013-04-17 | 保定天威保变电气股份有限公司 | High voltage regulating autotransformer |
| 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 |
| CN104752043A (en) * | 2015-04-03 | 2015-07-01 | 正泰电气股份有限公司 | Voltage regulating method for three-phase loaded voltage-regulating self-coupling transformer |
| CN206210553U (en) * | 2016-12-01 | 2017-05-31 | 保定天威保变电气股份有限公司 | A kind of single-phase high voltage variable flux voltage variation (VFVV) auto-transformer |
Non-Patent Citations (2)
| Title |
|---|
| 特高压变压器调压方式分析;原敏宏;《水电能源科学》;20080831;第26卷(第4期);全文 |
| 特高压变压器调压补偿方法对比分析;赵宏飞;《中国电力》;20160430;第49卷(第4期);全文 |
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| CN106504864A (en) | 2017-03-15 |
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