CN108806947A - A kind of low pressure times step voltage transformer - Google Patents
A kind of low pressure times step voltage transformer Download PDFInfo
- Publication number
- CN108806947A CN108806947A CN201810528900.1A CN201810528900A CN108806947A CN 108806947 A CN108806947 A CN 108806947A CN 201810528900 A CN201810528900 A CN 201810528900A CN 108806947 A CN108806947 A CN 108806947A
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- Prior art keywords
- winding
- low pressure
- transformer
- switch
- switching
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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
- H01F27/00—Details of transformers or inductances, in general
- H01F27/40—Structural association with built-in electric component, e.g. fuse
-
- 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
- H01F29/04—Variable transformers or inductances not covered by group H01F21/00 with tappings on coil or winding; with provision for rearrangement or interconnection of windings having provision for tap-changing without interrupting the load current
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Coils Of Transformers For General Uses (AREA)
Abstract
The present invention relates to a kind of low pressure times step voltage transformers, belong to transformer technology field.Technical solution is：By low pressure winding around being made as multiple coil structure winding, multiple coil structure winding is in initial and end leading-out terminal, winding conducting wire head does not link together, but it respectively guides at the different switching position of the switch, realize that the serial or parallel connection between windings at different levels, the low pressure winding of transformer are run under a variety of times of step voltages using switching switch.The positive effect of the present invention：Using multiple coil winding and switching switch cooperation switching, realize the serial or parallel connection between winding spirals at different levels, to realize more times of step voltages of low pressure, the low pressure winding of transformer can be run under a variety of times of step voltages, and the invariable of the parameters such as transformer station high-voltage side bus capacity, impedance, loss, temperature liter can be maintained.
Description
Technical field
The present invention relates to a kind of low pressure times step voltage transformers, belong to transformer technology field.
Background technology
There is change when low pressure is run under two or more different voltages multiplying power grades in the low-tension transformer of prior art
Depressor other basic parameters variation is excessive, changes problems of too.People are badly in need of what a kind of low pressure can switch on a variety of times of voltages
Transformer can maintain the parameter constants such as working capacity, impedance, loss, temperature liter constant, and can be used for low pressure is that two or more are different
The power grid of voltage multiplying power grade or load.
Invention content
It is an object of the present invention to provide a kind of low pressure times step voltage transformers, using multiple coil winding and switching switch cooperation
Switching realizes the serial or parallel connection between winding spirals at different levels, to realize more times of step voltages of low pressure, allows the low pressure winding of transformer
Can run under a variety of times of step voltages, and can maintain transformer station high-voltage side bus capacity, impedance, loss, temperature rise etc. parameters it is constant not
Become, solves the above problem existing for prior art.
The technical scheme is that：
A kind of low pressure times step voltage transformer, for realize low pressure can connect two or more different voltages multiplying power grades power grid or
Load, by low pressure winding around multiple coil structure winding is made as, multiple coil structure winding is in initial and end leading-out terminal, winding conducting wire
Head does not link together, but respectively guides at the different switching position of the switch, using switching switch realize windings at different levels it
Between serial or parallel connection, the low pressure winding of transformer runs under a variety of times of step voltages, and can maintain transformer station high-voltage side bus capacity, resistance
Anti-, loss, temperature such as rise at the invariable of parameters.
The multiple coil structure winding can all have spiral inclination due to the design feature of Helical winding per circle winding
Degree, spiral series is more, and spiral inclination degree is bigger；To avoid spiral inclination from spending greatly, spiral series should not be too many；Spiral series
For two level~nine grade.
Low pressure winding is that helically coiling, the initial and end end of multiple conducting wires are respectively led into two to multiple conducting wires in an axial direction side by side
Switching switch, head end switch switch K1 and tail end and switch switch K2, switched using two switchings the parallel connection for controlling multiple conducting wires or
Series connection.
Illustrate by taking simplest low pressure winding deuterostrophies structure winding as an example：Low pressure winding is two conducting wires side by side along axis
To helically coiling, the initial and end end of two conducting wires is respectively led into two switching switches, and head end switches switch K1 and tail end switching switch
K2, in parallel or series using two switching switch control, two conducting wires；When conducting wire is in parallel, the number of turns of winding entirety and its
In any one conducting wire equal turn numbers, if at this time the terminal voltage of winding be Ua.When conducting wire is series connection, due to winding entirety
The number of turns is equal to 2 times of the number of turns of wherein any one conducting wire, thus the terminal voltage of winding by for parallel connection when 2 times, as 2Ua,
Because the capacity of transformer is constant, 1/2 when the phase current in winding is in parallel at this time, and because winding is whole after series connection
Conductor cross-section be equal to the 1/2 of wherein any one conductor cross-section, so the current density for then flowing through winding remains unchanged, this
Sample, the loss of transformer, Wen Sheng will not change.Since all conducting wires of transformer low voltage winding are in the complete phase of structure and size
Together, conducting wire is fully equivalent on spatial position, so the impedance of transformer there will not be variation.In addition, due under various combinations
The equivalent invariance of low pressure winding, the related contents such as anti-short circuit capability, the overexcitation ability of transformer will not all change.
The positive effect of the present invention：Using multiple coil winding and switching switch cooperation switching, winding spirals at different levels are realized
Between serial or parallel connection allow the low pressure winding of transformer that can run on a variety of times of grade electricity to realize more times of step voltages of low pressure
Pressure, and the invariable of the parameters such as transformer station high-voltage side bus capacity, impedance, loss, temperature liter can be maintained.
Description of the drawings
Fig. 1 is the front view of deuterostrophies structure winding of the present invention；
Fig. 2 is the schematic diagram of deuterostrophies structure winding of the present invention；
Fig. 3 is one schematic diagram of switching switch wire connection structure of deuterostrophies structure winding of the present invention；
Fig. 4 is two schematic diagram of switching switch wire connection structure of deuterostrophies structure winding of the present invention；
Fig. 5 is three schematic diagram of switching switch wire connection structure of deuterostrophies structure winding of the present invention；
Fig. 6 is the switching switch wire connection structural schematic diagram of three-level helical structure winding of the present invention；
In figure：Insulation 4, LV low pressure windings between level-one spiral conducting line 1, deuterostrophies conducting wire 2, three-level spiral conducting line 3, conducting wire,
HV high-voltage windings, head end switching switch K1, tail end switching switch K2.
Specific implementation mode
Below in conjunction with attached drawing, by embodiment, the invention will be further described.
A kind of low pressure times step voltage transformer, to realize that low pressure can connect the electricity of two or more different voltages multiplying power grades
Net or load, by low pressure winding around multiple coil structure winding is made as, multiple coil structure winding is in initial and end leading-out terminal, winding
Wire head does not link together, but respectively guides at the different switching position of the switch, using switching switch realize it is at different levels around
The low pressure winding of serial or parallel connection between group, transformer is run under a variety of times of step voltages, and transformer station high-voltage side bus can be maintained to hold
Amount, impedance, loss, temperature rise etc. parameters it is invariable.
The multiple coil structure winding can all have spiral inclination due to the design feature of Helical winding per circle winding
Degree, spiral series is more, and spiral inclination degree is bigger；To avoid spiral inclination from spending greatly, spiral series should not be too many；Spiral series
For two level~nine grade.
Low pressure winding is that helically coiling, the initial and end end of multiple conducting wires are respectively led into two to multiple conducting wires in an axial direction side by side
Switching switch, head end switch switch K1 and tail end and switch switch K2, switched using two switchings the parallel connection for controlling multiple conducting wires or
Series connection.
With reference to attached drawing 1,2,3,4,5, illustrate by taking simplest low pressure winding deuterostrophies structure winding as an example：Low pressure winding
For two conducting wires, helically coiling, the initial and end end of two conducting wires are respectively led into two switching switches in an axial direction side by side, and head end switching is opened
It closes K1 and tail end switches switch K2, in parallel or series using two switching switch control, two conducting wires；When conducting wire is in parallel,
The equal turn numbers of the number of turns and wherein any one conducting wire of winding entirety, if the terminal voltage of winding is U at this timea.When conducting wire is string
When connection, since the number of turns of winding entirety is equal to 2 times of the number of turns of wherein any one conducting wire, so the terminal voltage of winding will be simultaneously
2 times when connection, as 2Ua, because the capacity of transformer is constant, 1/2 when the phase current in winding is in parallel at this time, again
Because the conductor cross-section of winding entirety is equal to the 1/2 of wherein any one conductor cross-section after series connection, winding is then flowed through
Current density remains unchanged, in this way, the loss of transformer, Wen Sheng all will not change.All due to transformer low voltage winding lead
Line is identical in structure and size, and conducting wire is fully equivalent on spatial position, so the impedance of transformer there will not be variation.
In addition, due to the equivalent invariance of low pressure winding under various combinations, the phase such as anti-short circuit capability, overexcitation ability of transformer is inside the Pass
Appearance will not all change.
For the transformer of 2 grades and 2 grades of low pressure winding or more helical structure winding, using aforesaid way, i.e., multistage spiral shell
Structure winding and switching switch cooperation switching are revolved, low pressure winding can be run under a variety of times of step voltages, and can maintain transformation
Device working capacity, impedance, loss, temperature rise etc. parameters it is invariable.Following table is that low pressure winding can when using different spiral series
The low voltage number of combinations and low voltage times series of realization.
The embodiment of the present invention attached drawing expresses to simplify, only depicts a wherein phase for three-phase circuit.It includes high voltage winding
Group HV, low pressure winding LV, head end switches switch K1, tail end switches switch K2.Wherein low pressure winding is that two level~nine grade are spiral
Structure.After using the connection of diagram, head end switches the different on-positions of switch K1 and tail end switching switch K2 contacts, realizes
Different times step voltages.
The present invention provides the multiple coil structure winding that spiral series is two level~nine grade, attached drawing 1,2,3,4,5 provides
Deuterostrophies structure winding and three kinds of switching Switch State Combination in Power Systems structural schematic diagrams, attached drawing 6 give three-level helical structure around
Group and a kind of switching Switch State Combination in Power Systems structural schematic diagram, other switching Switch State Combination in Power Systems structures of three-level helical structure winding
Schematic diagram those skilled in the art can with and so on, the various switching Switch State Combination in Power Systems knots of four to nine grades of helical structure windings
Structure schematic diagram those skilled in the art can with and so on, the present invention repeats no more, omit relevant drawings.
Claims (3)
1. a kind of low pressure times step voltage transformer, it is characterised in that：It is multistage by low pressure winding around being made as multiple coil structure winding
Helical structure winding does not link together in initial and end leading-out terminal, winding conducting wire head, but respectively guides different switching switches into
At position, realize that the serial or parallel connection between windings at different levels, the low pressure winding of transformer run on a variety of times using switching switch
Under step voltage, and the invariable of the parameters such as transformer station high-voltage side bus capacity, impedance, loss, temperature liter can be maintained.
2. a kind of low pressure times step voltage transformer according to claim 1, it is characterised in that：The multiple coil structure around
Group, spiral series are two level~nine grade.
3. a kind of low pressure times step voltage transformer according to claim 1 or 2, it is characterised in that：Low pressure winding is more
Helically coiling, the initial and end end of multiple conducting wires are respectively led into two switching switches to conducting wire in an axial direction side by side, and head end switches switch K1
Switch switch K2 with tail end, in parallel or series using two switching switch control multiple conducting wires.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810528900.1A CN108806947A (en) | 2018-05-29 | 2018-05-29 | A kind of low pressure times step voltage transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810528900.1A CN108806947A (en) | 2018-05-29 | 2018-05-29 | A kind of low pressure times step voltage transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108806947A true CN108806947A (en) | 2018-11-13 |
Family
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810528900.1A Pending CN108806947A (en) | 2018-05-29 | 2018-05-29 | A kind of low pressure times step voltage transformer |
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| CN (1) | CN108806947A (en) |
Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1207566A (en) * | 1997-08-06 | 1999-02-10 | 苏金生 | Full constant power output transformer for energy-saving ore smelting furnace |
| CN2901524Y (en) * | 2006-03-28 | 2007-05-16 | 中电电气集团有限公司 | Variable magnetic flux series and parallel regulating capacity transformer |
| CN101236830A (en) * | 2007-12-13 | 2008-08-06 | 武汉钢铁(集团)公司 | A making method for low-voltage and high current transformer winding |
| CN101685701A (en) * | 2008-09-28 | 2010-03-31 | 苏李文 | Winding structure of transformer |
| CN101697310A (en) * | 2009-11-03 | 2010-04-21 | 保定天威集团有限公司 | Winding connection structure for double-active-part on-load-tap-changing auto-transformer |
| JP2011018867A (en) * | 2009-07-07 | 2011-01-27 | Oaks:Kk | In-loading voltage adjusting machine by variable-winding-number transformer |
| CN202067643U (en) * | 2010-12-30 | 2011-12-07 | 天威云南变压器股份有限公司 | Single-phase traction transformer |
| CN202487355U (en) * | 2012-03-01 | 2012-10-10 | 广西柳州特种变压器有限责任公司 | Special energy-saving transformer |
| CN102867631A (en) * | 2012-10-12 | 2013-01-09 | 宁波市鄞州供电局 | Capacity regulating transformer |
| CN103050260A (en) * | 2012-12-24 | 2013-04-17 | 保定天威保变电气股份有限公司 | 330kV-level three-phase three-winding high-impedance power auto-transformer with function of on-load voltage regulation |
| CN105931825A (en) * | 2016-06-29 | 2016-09-07 | 正泰电气股份有限公司 | Method of meeting double-voltage design employing no-load serial-parallel switches and no-load change-over switch |
| CN107025991A (en) * | 2017-05-11 | 2017-08-08 | 山东电工电气集团智能电气有限公司 | A kind of loaded capacity-regulated transformer low pressure winding structure and winding method, transformer |
| CN208271702U (en) * | 2018-05-29 | 2018-12-21 | 保定天威保变电气股份有限公司 | A kind of low pressure times step voltage transformer |
-
2018
- 2018-05-29 CN CN201810528900.1A patent/CN108806947A/en active Pending
Patent Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1207566A (en) * | 1997-08-06 | 1999-02-10 | 苏金生 | Full constant power output transformer for energy-saving ore smelting furnace |
| CN2901524Y (en) * | 2006-03-28 | 2007-05-16 | 中电电气集团有限公司 | Variable magnetic flux series and parallel regulating capacity transformer |
| CN101236830A (en) * | 2007-12-13 | 2008-08-06 | 武汉钢铁(集团)公司 | A making method for low-voltage and high current transformer winding |
| CN101685701A (en) * | 2008-09-28 | 2010-03-31 | 苏李文 | Winding structure of transformer |
| JP2011018867A (en) * | 2009-07-07 | 2011-01-27 | Oaks:Kk | In-loading voltage adjusting machine by variable-winding-number transformer |
| CN101697310A (en) * | 2009-11-03 | 2010-04-21 | 保定天威集团有限公司 | Winding connection structure for double-active-part on-load-tap-changing auto-transformer |
| CN202067643U (en) * | 2010-12-30 | 2011-12-07 | 天威云南变压器股份有限公司 | Single-phase traction transformer |
| CN202487355U (en) * | 2012-03-01 | 2012-10-10 | 广西柳州特种变压器有限责任公司 | Special energy-saving transformer |
| CN102867631A (en) * | 2012-10-12 | 2013-01-09 | 宁波市鄞州供电局 | Capacity regulating transformer |
| CN103050260A (en) * | 2012-12-24 | 2013-04-17 | 保定天威保变电气股份有限公司 | 330kV-level three-phase three-winding high-impedance power auto-transformer with function of on-load voltage regulation |
| CN105931825A (en) * | 2016-06-29 | 2016-09-07 | 正泰电气股份有限公司 | Method of meeting double-voltage design employing no-load serial-parallel switches and no-load change-over switch |
| CN107025991A (en) * | 2017-05-11 | 2017-08-08 | 山东电工电气集团智能电气有限公司 | A kind of loaded capacity-regulated transformer low pressure winding structure and winding method, transformer |
| CN208271702U (en) * | 2018-05-29 | 2018-12-21 | 保定天威保变电气股份有限公司 | A kind of low pressure times step voltage transformer |
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