CN106783067A - A kind of coil shunts transformer - Google Patents
A kind of coil shunts transformer Download PDFInfo
- Publication number
- CN106783067A CN106783067A CN201510809385.0A CN201510809385A CN106783067A CN 106783067 A CN106783067 A CN 106783067A CN 201510809385 A CN201510809385 A CN 201510809385A CN 106783067 A CN106783067 A CN 106783067A
- Authority
- CN
- China
- Prior art keywords
- breaker
- transformer
- sub
- coil
- low pressure
- 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.)
- Granted
Links
Landscapes
- Supply And Distribution Of Alternating Current (AREA)
Abstract
The present invention relates to a kind of coil shunting transformer, the transformer includes：An at least phase high pressure winding and at least a phase low pressure winding, low pressure winding described in per phase include multiple coil groups in parallel, and each described coil group includes the subcoil and sub- breaker that are connected in series；The transformer also includes the controller for controlling each sub- breaker, and the controller is connected with sub- breaker each described, and controls all sub- breakers to be opened and closed simultaneously.Form by the way that each group of winding in low pressure winding to be arranged to multiple coils from parallel connection of coils of the invention, and a breaker of being connected on each coil, the inside that breaker is integrated in transformer is realized, and significantly reduces the integrated cost of transformer and breaker.
Description
Technical field
The present invention relates to transformer technology field, transformer is shunted more particularly, to a kind of coil.
Background technology
Transformer is one of important power transmission and transforming equipment in power system, is in power system
Hinge status, the security reliability of its operation is directly connected to the safety of power system.Breaker
Indispensable element in transformer station's high voltage distribution installation, when device fails with it come
Quick excision trouble point, it is ensured that the normal operation of power network.Usually, the high-pressure side of transformer and
Low-pressure side, will be connected with breaker, on the transformer when trip, downstream fault, can have
Effect ground isolating transformer, prevents transformer from being endangered by failure.
At present, the high-power transformer of voltage levels (10kV and more than), was manufacturing
Cheng Zhong, more than its winding by the way of multiple line cakes combinations.By taking high current coil as an example, it is simultaneously
Do not formed by a wire coiling, but use several or even tens of identical wires simultaneously
Connection forms (reference《Transformer coil is manufactured》).In addition, system bigger by the electric current of coil
Make difficulty higher.
Usually, the drop-out current of breaker is more than 31.5kA, operating current more than 4000A,
Its radiating and arc extinguishing are difficult, and manufacturing cost is very high, especially conventional medium voltage breaker.Big electricity
Stream generator outlet breaker GCB only has a small number of manufacturers could to produce, and price is high.In order to subtract
Small transformers low-voltage circuit breaker cost, part designing technique code requirement transformer capacity control exists
Certain limit, to avoid using the medium voltage breaker of high current, cause number transformer to increase,
Transformation level is more, becomes electrical loss big.
Siemens Company once transformer outlet by multiple low capacity breakers (being set to N number of) and
Connection is used, and the rated current of low capacity breaker can be single large capcity breaker rated current
1/N, but electric current of make-and-break still require that it is identical with large capcity breaker, therefore, integrated cost takes
With not being greatly reduced.
A kind of Modularization vacuum circuit breaker that latest domestic is succeeded in developing, using self coupling reactor,
One inlet wire can be divided into two equal outlets of size of current, then to be equipped with two modularizations true
Empty breaker, can be reduced to original 1/2nd by the electric current of make-and-break of breaker.But,
If the electric current of make-and-break of breaker is reduced to original part even lower, it is necessary to using many
The multiple self coupling reactors of level, complex structure, cost is also higher.
At present apparently, when the electric current of transformer is very big, or increase transformer quantity, or
Person installs the integrated cost of large capcity breaker (and heat abstractor), transformer and its breaker
Expense is relatively very high.Even if in parallel using breaker in transformer outlet, it is also desirable to ensure in parallel
The electric current of make-and-break of breaker is equal with the electric current of make-and-break of single breaker, or configuration is multistage multiple
The integrated cost expense of mutual reactor, transformer and breaker is not greatly reduced.
The content of the invention
Based on above mentioned problem, the present invention proposes a kind of coil shunting transformer, by by low pressure around
Each group of winding in group is arranged to the form of multiple coils from parallel connection of coils, and is gone here and there on each coil
One breaker of connection, realizes the inside that breaker is integrated in transformer, and effectively drop
The low cost of transformer.
For achieving the above object, the present invention provides a kind of coil shunting transformer, its feature
It is that the transformer includes：
An at least phase high pressure winding and at least a phase low pressure winding, low pressure winding described in per phase include
Multiple coil groups in parallel, each described coil group includes the subcoil being connected in series and son open circuit
Device；
The transformer also includes the controller for controlling each sub- breaker, the control
Device processed is connected with sub- breaker each described, and controls all sub- breakers to be opened and closed simultaneously.
Wherein, an output line is formed after multiple coil groups parallel connection of low pressure winding described in every phase,
Output line between low pressure winding described in each phase connects into Y types or triangular form output.
Wherein, the structure of the subcoil of each coil group is identical.
Wherein, the material of the subcoil is identical.
Wherein, the sub- breaker of each coil group is identical.
Wherein, the sub- breaker of each coil group is located at the subcoil of corresponding coil group
On outlet line.
Coil of the invention shunts transformer, and miniaturization breaker is integrated in into inside transformer,
Replace large capcity breaker by using multiple low capacity breakers, significantly reduce breaker
Manufacturing cost, so as to reduce the integrated cost expense of transformer and breaker.In addition, this
The transformer of invention can be manufactured based on the existing manufacturing process of transformer coil, it is easy to real
It is existing, and reduce the manufacture difficulty of transformer coil.
Brief description of the drawings
The features and advantages of the present invention can be more clearly understood from by reference to accompanying drawing, accompanying drawing is to show
Meaning property and should not be construed as carrying out the present invention any limitation, in the accompanying drawings：
Fig. 1 shows that the coil of first embodiment of the invention shunts the structural representation of transformer；
Fig. 2 shows that second embodiment of the present invention coil shunts the structural representation of transformer.
Specific embodiment
Below in conjunction with accompanying drawing, embodiments of the present invention is described in detail.
Coil shunting transformer of the invention is specifically included：An at least phase high pressure winding and at least
Phase low pressure winding, multiple coil groups in parallel are included per phase low pressure winding, and each coil group includes
The subcoil and sub- breaker being connected in series；
In addition, transformer also includes the controller for controlling every sub- breaker, controller with
Every sub- breaker connection, and control all sub- breakers to be opened and closed simultaneously.
In above-mentioned transformer, it is assumed that the specified phase current of transformer low voltage winding side is I2N,
The coil number being often in parallel is N, then, the relevant parameter of transformer coil (such as wire half
Footpath etc.), it is I according to rated current2N/ N is designed and selects.
In addition, the parameter all same such as material, wire radius, number of turn of each coil of transformer, from
And ensure that the size of current that each coil passes through is equal.
Additionally, each mutually each winding coil around to identical, to ensure the output of each path of winding
The sense of current is identical.
For the selection of sub- breaker, because the coil group number being often in parallel is N, then per phase
Breaker number in parallel is also N.When selecting sub- breaker, the rated current of sub- breaker is pressed
It is I according to rated current2N/ N is designed and selects, and the specified electric current of make-and-break of sub- breaker is also pressed
It is designed and selects according to the 1/N of former specified electric current of make-and-break.
In embodiments of the invention, sub- breaker can be integrated in the miniaturization of inside transformer
Breaker.The model of all sub- breakers is identical, so that it is guaranteed that the actuation time of each sub- breaker
It is identical etc. characteristic.Because the electric current of make-and-break of sub- breaker is reduced to original 1/N, therefore,
When choosing sub- breaker, it is preferential using break-make capacity is smaller but dependable performance, small volume, without dirt
The vacuum circuit breaker of dye, so as to be conducive to that sub- breaker is integrated into transformer.
The installation site of breaker, can be serially connected in low pressure winding each subcoil outlet it
Afterwards.A plurality of inlet wire per phase winding with go out line parallel an into inlet wire and outlet, then by transformer
Specific connected mode (Y types or triangular form) connection after export.
In addition, in transformer of the invention, being additionally provided with the control being connected with all sub- breakers
Device, the controller is simultaneously emitted by actuating signal to every sub- breaker, to ensure with identical dynamic
The breaker for making the time can be while be opened and closed.
The coil shunting transformer that the present invention is provided, can realize high current in low pressure winding side
Output, and based on the existing manufacturing process of transformer coil, it is easy to accomplish, reduce change
The manufacture difficulty of transformer coil.In addition, by above-mentioned setting, breaker can will be minimized integrated
In inside transformer, existing Large Copacity open circuit is replaced by using multiple low capacity breakers
Device, significantly reduces the manufacturing cost of breaker, so as to reduce transformer and breaker
Integrated cost expense.
Coil of the invention shunting transformer is described in detail below by way of specific embodiment.
Fig. 1 shows that the coil of the first embodiment of the present invention shunts the structural representation of transformer
Figure.
Reference picture 1, the coil shunting transformer of the present embodiment is single-phase transformer, including：One
Phase high pressure winding 10 and a phase low pressure winding 20, low pressure winding 20 include multiple coil groups in parallel
30, each coil group 30 includes the subcoil and sub- breaker that are connected in series.
Above-mentioned transformer is also included for controlling every controller 70 of sub- breaker, controller 70
It is connected with every sub- breaker, and controls all sub- breakers to be opened and closed simultaneously.
As shown in figure 1, N1、N2、N3... it is respectively each subcoil number of turn.Each subcoil
The parameters such as material, wire radius are identical, around to identical, and equal turn numbers (N1=N2=N3...),
Equal to ensure the size of current that each coil flows through, direction is identical.
S1、S2、S3... it is respectively the sub- breaker of each coil group.The model of each breaker
It is identical, it is ensured that the characteristic such as actuation time of each sub- breaker is identical.Sub- breaker is serially connected in sub-line
After the outlet of circle, the outlet of each sub- breaker is exported after being connected in parallel.
In the present embodiment, controller 70 is connected to every sub- breaker S1、S2、S3..., by
Must be worked simultaneously in the sub- breaker of the present embodiment can be only achieved the low pressure of traditional transformer around
The performance of the breaker of group, therefore, the controller 70 of this implementation controls all of sub- breaker
Opening and closing.
In the present embodiment, for single-phase transformer winding and iron core, shell etc., other are unaccounted
Part is not specifically limited, and the technology such as winding and iron core, shell of existing single-phase transformer is special
Levy and be applied to the present invention.
Fig. 2 shows that second embodiment of the present invention coil shunts the structural representation of transformer.
In the present embodiment, coil shunting transformer includes multiphase high pressure winding 40 and multiphase low pressure
Winding 50, multiple coil groups 60 are included per phase low pressure winding 50, and each coil group includes one
Individual subcoil and a sub- breaker.
As shown in Fig. 2 the transformer in the present embodiment is three-phase transformer, for low pressure winding
50 each phase, low pressure winding of its structure all with first embodiment is identical, and per phase low pressure
An output line, the output between each phase low pressure winding are formed after multiple coil groups parallel connection of winding
Line connects into Y types or triangular form output.
In the present embodiment, controller 70 is connected to every sub- breaker S1、S2、S3..., by
Must be worked simultaneously in the sub- breaker of the present embodiment can be only achieved the low pressure of traditional transformer around
The performance of the breaker of group, therefore, the controller 70 of this implementation controls all of sub- breaker
Opening and closing.
In the present embodiment, for polyphase transformer winding and iron core, shell etc., other are unaccounted
Part is not specifically limited, and the technology such as winding and iron core, shell of existing polyphase transformer is special
Levy and be applied to the present invention.
Above specific embodiment be only used to illustrate specific implementation technical scheme of the invention rather than
Limitation, although being described in detail to the present invention with reference to example, those skilled in the art should
Work as understanding, technical scheme can be modified or equivalent, without deviating from
The spirit and scope of technical solution of the present invention, it all should cover in scope of the presently claimed invention
It is central.
Claims (6)
1. a kind of coil shunts transformer, it is characterised in that the transformer includes：
An at least phase high pressure winding and at least a phase low pressure winding, low pressure winding described in per phase include
Multiple coil groups in parallel, each described coil group includes the subcoil being connected in series and son open circuit
Device；
The transformer also includes the controller for controlling each sub- breaker, the control
Device processed is connected with sub- breaker each described, and controls all sub- breakers to be opened and closed simultaneously.
2. transformer according to claim 1, it is characterised in that low pressure described in per phase around
An output line is formed after multiple coil groups parallel connection of group, it is defeated between low pressure winding described in each phase
Outlet connects into Y types or triangular form output.
3. transformer according to claim 1, it is characterised in that each described coil group
Subcoil structure it is identical.
4. transformer according to claim 1, it is characterised in that the material of the subcoil
Material is identical.
5. transformer according to claim 1, it is characterised in that each described coil group
Sub- breaker it is identical.
6. transformer according to claim 1, it is characterised in that each described coil group
Sub- breaker be located at corresponding coil group subcoil outlet line on.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510809385.0A CN106783067B (en) | 2015-11-19 | 2015-11-19 | A kind of coil shunting transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510809385.0A CN106783067B (en) | 2015-11-19 | 2015-11-19 | A kind of coil shunting transformer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106783067A true CN106783067A (en) | 2017-05-31 |
| CN106783067B CN106783067B (en) | 2019-07-12 |
Family
ID=58885867
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510809385.0A Active CN106783067B (en) | 2015-11-19 | 2015-11-19 | A kind of coil shunting transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106783067B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112652441A (en) * | 2020-12-31 | 2021-04-13 | 河南铜牛变压器有限公司 | Maintenance-free high-efficiency energy-saving dry-type electric furnace transformer |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101013853A (en) * | 2005-12-30 | 2007-08-08 | 内蒙古亿人环保科技有限公司 | Finite differential converter method of triangular function and implementation apparatus thereof |
| CN101352782A (en) * | 2008-09-05 | 2009-01-28 | 深圳市鸿栢科技实业有限公司 | Stud welder and stud welder high-frequency transformator |
| CN101496451A (en) * | 2006-07-28 | 2009-07-29 | 松下电器产业株式会社 | Discharge lamp operating system |
| CN101764421A (en) * | 2010-01-15 | 2010-06-30 | 中国科学院电工研究所 | Equalizing equipment for battery units of electric automobile |
| CN101958180A (en) * | 2009-07-15 | 2011-01-26 | 陈进祥 | Transformation device |
-
2015
- 2015-11-19 CN CN201510809385.0A patent/CN106783067B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101013853A (en) * | 2005-12-30 | 2007-08-08 | 内蒙古亿人环保科技有限公司 | Finite differential converter method of triangular function and implementation apparatus thereof |
| CN101496451A (en) * | 2006-07-28 | 2009-07-29 | 松下电器产业株式会社 | Discharge lamp operating system |
| CN101352782A (en) * | 2008-09-05 | 2009-01-28 | 深圳市鸿栢科技实业有限公司 | Stud welder and stud welder high-frequency transformator |
| CN101958180A (en) * | 2009-07-15 | 2011-01-26 | 陈进祥 | Transformation device |
| CN101764421A (en) * | 2010-01-15 | 2010-06-30 | 中国科学院电工研究所 | Equalizing equipment for battery units of electric automobile |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112652441A (en) * | 2020-12-31 | 2021-04-13 | 河南铜牛变压器有限公司 | Maintenance-free high-efficiency energy-saving dry-type electric furnace transformer |
| CN112652441B (en) * | 2020-12-31 | 2023-11-28 | 河南铜牛变压器有限公司 | Maintenance-free high-efficiency energy-saving dry type electric furnace transformer |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106783067B (en) | 2019-07-12 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102790382B (en) | Current limited soft connecting/disconnecting device | |
| CN107195447B (en) | Regulating and controlling voltage method | |
| CN106030950B (en) | Network node for power grid, the adjustable transformer for network node and the method for operational network node | |
| CN103928214A (en) | Double-column double-split reactor applied to current limiter | |
| US11087913B2 (en) | Transformer system | |
| CN104752043A (en) | Voltage regulating method for three-phase loaded voltage-regulating self-coupling transformer | |
| WO2024114316A1 (en) | Harmonic current switching test loop for vacuum on-load tap-changer | |
| GB2509742A (en) | Fault current limiter | |
| CN106783067A (en) | A kind of coil shunts transformer | |
| CN203800568U (en) | Parallel type generator circuit breaker | |
| CN207637603U (en) | A kind of automatic capacity transfer type distribution transformer | |
| CN104521129B (en) | Inverter in parallel on choke | |
| CN103887766B (en) | A kind of generator outlet breaker of parallel connection type | |
| CN106057452A (en) | Transformer capable of increasing impedance | |
| CN106783068B (en) | A kind of coil subdivided transformer | |
| CN110429573B (en) | Parameter selection method for neutral point grounding reactor of converter transformer | |
| CN106159879B (en) | A kind of combined mass circuit breaker system | |
| CN102868142B (en) | Topological structure for operation of short circuit impact generator | |
| CN103021642B (en) | A kind of load ratio bridging switch | |
| CN206076914U (en) | A kind of combined mass circuit breaker system | |
| US11875963B2 (en) | Device for connecting to a high-voltage grid | |
| WO2024108685A1 (en) | Single-phase self-coupling excitation-free medium-voltage multi-tap voltage-regulating transformer and voltage regulation method therefor | |
| Hamer | Application of the duplex reactor-an unusual and forgotten technique to reduce short circuit duty | |
| CN217386893U (en) | Transformer of adjustable phase place | |
| CN212724970U (en) | Low-voltage coil structure for double-voltage star-delta conversion and split transformer thereof |
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 | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |