CN109473266A - A kind of phase shortage can self-insurance band compensate iron yoke Scott Transformer - Google Patents
A kind of phase shortage can self-insurance band compensate iron yoke Scott Transformer Download PDFInfo
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- CN109473266A CN109473266A CN201910017211.9A CN201910017211A CN109473266A CN 109473266 A CN109473266 A CN 109473266A CN 201910017211 A CN201910017211 A CN 201910017211A CN 109473266 A CN109473266 A CN 109473266A
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- Prior art keywords
- winding
- yoke
- self
- iron yoke
- phase shortage
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F30/00—Fixed transformers not covered by group H01F19/00
- H01F30/06—Fixed transformers not covered by group H01F19/00 characterised by the structure
- H01F30/12—Two-phase, three-phase or polyphase transformers
- H01F30/14—Two-phase, three-phase or polyphase transformers for changing the number of phases
-
- 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
-
- 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
- H01F27/34—Special means for preventing or reducing unwanted electric or magnetic effects, e.g. no-load losses, reactive currents, harmonics, oscillations, leakage fields
- H01F27/36—Electric or magnetic shields or screens
-
- 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
- H01F27/402—Association of measuring or protective means
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E40/00—Technologies for an efficient electrical power generation, transmission or distribution
- Y02E40/30—Reactive power compensation
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Coils Of Transformers For General Uses (AREA)
Abstract
The invention discloses a kind of phase shortage can self-insurance band compensate iron yoke Scott Transformer, wave thin slice, shunt capacitance and compensation iron yoke are inhaled including iron core, winding, damping, the winding is multiple, multiple windings are installed in iron core main body, and each winding includes multiple winding wire turns, multiple winding wire turns, it is sequentially connected, the damping is inhaled wave thin slice and is set between adjacent winding wire turn, and the shunt capacitance is parallel on winding, and the compensation iron yoke is connected with iron core.When phase is broken in the generation in the present invention, magnetic flux distribution at its stabilized iron core of energy, so that the present invention is under non-full-phase state, it still can be carried out disconnected mutually work, there is self protective function, and shunt capacitance is set, the ability that the present invention is impacted by thunder and lightning and overvoltage can be promoted, and the setting for damping suction wave thin slice can decay and absorb the certain electromagnetic wave of shielding, improve mechanical strength of the winding wire turn in the present invention under electromagnetic viscosimeter.
Description
Technical field
The present invention relates to design of transformer fields, can self-insurance band compensation iron yoke Scott transformation more particularly to a kind of phase shortage
Device.
Background technique
Transformer is a kind of principle using electromagnetic induction to change the device of voltage, mainly there is voltage transformation, electric current
The functions such as transformation, impedance transformation, isolation, pressure stabilizing, and transformer is also by railway vehicle traction system, and for rail vehicle
For, transformer is that wherein weight and volume is maximum, and the highest separate unit electrical equipment of price, is in entire traction generator
Most crucial equipment is the source of train dynamics, it may be said that the steady operation of transformer is the rail vehicles such as train, high-speed rail
One important prerequisite of stable operation.There are many transformer type used in rail vehicle, and Scott Transformer is wherein
Common one kind.
Scott Transformer is actually to be formed by connecting by two single-phase transformers by regulation.The original of one single-phase transformer
Side winding both ends are drawn, and the two-phase of three-phase electrical power system, referred to as Building M transformer are coupled with；The original of another single-phase transformer
Side winding one end is drawn, and another phase of three-phase electrical power system, the other end to the midpoint of Building M transformer primary winding, referred to as T are connected to
Seat transformer.Three-phase voltage is transformed into two-phase voltage by this tie lines form, supplies one side supply arm with the phase in two-phase, separately
One phase supplies another side supply arm.Such as Building M transformer primary winding the number of turns, both ends are respectively connected to the B of electric system, C phase, to the left
The power supply of side supply arm.Building T transformer primary winding, the midpoint of the end Building M a Jie transformer primary winding, another terminate to are connected to
The A phase of electric system is powered to the right supply arm.Scott Transformer is just used as the transformation that three-phase becomes two-phase, fortune as a result,
Can row situation directly affect electric railway system and safe and efficient run.
And since rail vehicle usually requires to work long hours in outdoor, thus the Scott used in rail vehicle
Transformer is often also required to work long hours in outdoor, and Scott Transformer is caused to be subjected to wind and frost sleet in this way
It attacks, in addition vibration when vehicle is run, causes the service life of Scott Transformer low, Scott change is also resulted in when serious
Phase shortage occurs for the winding in depressor, and Scott Transformer is also easy to cause to be struck by lightning or operate when in use under outdoor
Situations such as overvoltage, causes transformer load to cause very much short circuit greatly, these situations can all influence the normal work of transformer, gives rail
The operation of road vehicle brings security risk.
Summary of the invention
The purpose of the present invention is to provide a kind of phase shortage can self-insurance band compensate iron yoke Scott Transformer, can solve above-mentioned
One or more in problem.
According to an aspect of the invention, there is provided a kind of phase shortage can self-insurance band compensate iron yoke Scott Transformer, including
Iron core, winding, damping inhale wave thin slice, shunt capacitance and compensation iron yoke, the winding be it is multiple, multiple windings are installed in
In iron core main body, each winding includes multiple winding wire turns, and multiple winding wire turns are sequentially connected, the damping
It inhales wave thin slice to be set between adjacent winding wire turn, the shunt capacitance is parallel on winding, the compensation iron yoke and iron core phase
Connection.
The beneficial effects of the present invention are: the present invention can apply in railway vehicle traction system as Scott Transformer,
And by setting compensation iron yoke, then when phase is broken in the generation in the present invention, can magnetic flux distribution at stabilized its iron core so that this
Invention still can be carried out disconnected mutually work, that is, have self protective function under non-full-phase state, and shunt capacitance is arranged, not only can be equal
Even electric field can also promote the ability that the present invention is impacted by thunder and lightning and overvoltage, avoid the present invention breakdown, improve of the invention
Use reliability, and damp and inhale the setting of wave thin slice and can decay and absorb and shield certain electromagnetic wave, improve on of the invention around
Mechanical strength of the group wire turn under electromagnetic viscosimeter, extends service life of the invention.
In some embodiments, the iron core includes upper yoke, lower yoke and stem, one end of the stem and upper iron
Yoke is connected, and the other end is connected with lower yoke, and the compensation iron yoke is connected with the bottom of lower yoke.
In some embodiments, the stem includes the first side column, the second side column and principal post, first side column, the
Two side columns and principal post are arranged in parallel.Stem is set as multiple tie lines that can be convenient for the upper each winding of the present invention as a result,.
In some embodiments, the horizontal cross-section of the lower yoke and the horizontal cross-section of compensation iron yoke match.As a result,
The fitness for compensating iron yoke and lower yoke is high, and when phase shortage occurs for the present invention, compensation iron yoke can magnetic at preferably stable iron core
Reduction of fractions to a common denominator cloth.
In some embodiments, it is high molecular polymer thin slice that wave thin slice is inhaled in the damping.High molecular polymer thin slice
Absorbing property it is good, and intensity is high, good operating stability.
In some embodiments, the winding includes high-voltage winding and low pressure winding, the high-voltage winding and low pressure around
Main empty path is equipped between group, the shunt capacitance passes through main empty path.It can be convenient for the fixation of shunt capacitance as a result,.
In some embodiments, including upper winding insulation and lower winding insulation, the upper winding insulation and winding is upper
End is connected, and the lower winding insulation is connected with the lower end of winding.Upper winding insulation and lower winding insulation can be to the upper of winding
Insulation is realized in lower part respectively, and avoids the in electrical contact of winding and shunt capacitance.
In some embodiments, the winding is equipped with tap, and one end of the shunt capacitance and tap are electrically connected,
Other end ground connection.Shunt capacitance can be parallel on winding well as a result, to guarantee its steady operation.
Detailed description of the invention
Fig. 1 be one embodiment of the present invention phase shortage can self-insurance band compensate iron yoke Scott Transformer iron core just
Depending on
Fig. 2 be one embodiment of the present invention phase shortage can self-insurance band compensate the winding of iron yoke Scott Transformer and face
Figure.
Fig. 3 be Fig. 1 phase shortage can self-insurance band compensate iron yoke Scott Transformer high-voltage winding or low pressure winding exhibition
Open figure.
Fig. 4 be Fig. 1 phase shortage can self-insurance band compensate iron yoke Scott Transformer tie lines figure.
In figure: wave thin slices, 4. shunt capacitances, 5. compensation iron yokes, winding insulation on 6. are inhaled in 1. iron cores, 2. windings, 3. dampings
With 7. lower winding insulations, 11. upper yokes, 12. lower yokes, 13. stems, 131. first side columns, 132. second side columns, 133. masters
Column, 210. winding wire turns, 220. taps, 21. high-voltage windings and 22. low pressure windings.
Specific embodiment
The invention will now be described in further detail with reference to the accompanying drawings.
With reference to Fig. 1, Fig. 2, Fig. 3 and Fig. 4, a kind of phase shortage of the invention can self-insurance band compensate iron yoke Scott Transformer, packet
Include iron core 1, winding 2, damping suction wave thin slice 3, shunt capacitance 4 and compensation iron yoke 5.
Iron core 1 includes upper yoke 11, lower yoke 12 and stem 13, and stem 13 includes the first side column 131, the second side column 132
With principal post 133, one end of the first side column 131 and upper yoke 11 are fixedly connected by welding, and the other end and lower yoke 12 pass through weldering
It connects and is fixedly connected, one end of the second side column 132 and upper yoke 11 are fixedly connected by welding, and the other end and lower yoke 12 pass through weldering
It connects and is fixedly connected, one end of principal post 133 and upper yoke 11 are fixedly connected by welding, and the other end and lower yoke 12 are solid by welding
Fixed connection.It compensates bottom of the iron yoke 12 then with lower yoke 12 to be fixedly connected by welding, and compensates the horizontal cross-section of iron yoke 5 under
The area equation of the horizontal cross-section of iron yoke 12, and shape matches.
Winding 2 be two groups, two groups of windings 2 include high-voltage winding 21 and low pressure winding 22, each high-voltage winding 21 or
Low pressure winding 22 is sequentially connected to connect by multiple winding wire turns 210 and be formed, and resistance is equipped between adjacent winding wire turn 210
Buddhist nun inhales wave thin slice 3, and it to be high molecular polymer thin slice, such as plastics that wave thin slice 3 is inhaled in damping, can decay and absorb shielding one
Fixed electromagnetic wave improves mechanical strength of the winding 2 under electromagnetic viscosimeter.
And one group of winding 2 is fixedly set on the first side column 131, another group of winding 2 is fixedly set in the second side column 132
On, then one end in the high-voltage winding 21 in the winding 2 on the first side column 131, which is drawn, is used as C-terminal, and the other end, which is drawn, is used as B
End, one end in the high-voltage winding 21 in the winding 2 on the second side column 132 is drawn be used as the end A, the other end then to draw after with the
The high-voltage winding 21 of winding 2 on one side column 131 is electrically connected, in addition, the high voltage winding in the winding 2 on the second side column 132
One end can also be drawn as N-terminal in group 21.And it is then drawn respectively in the low pressure winding 22 in the winding 2 on the first side column 131
Both ends are as the end b1 and the end b2, i.e., the low pressure winding 22 is equivalent to Building M transformer, in the winding 2 on the second side column 132
Both ends are drawn in low pressure winding 22 respectively as the end a1 and the end a2, i.e., the low pressure winding 22 is equivalent to Building T transformer.
And there are gaps between the high-voltage winding 21 and low pressure winding 22 in each winding 2, i.e., its there are main empty paths, and
The main body of connection capacitor 4 is located in main empty path, and its both ends is pierced by from main empty path, and tap 220 is additionally provided on winding 2, in parallel
One end of capacitor 4 and tap 220 are electrically connected, and the other end is then electrically connected with the earth, i.e., the other end is grounded, so that in parallel
Capacitor 4 is parallel on winding 2.
The present invention can also include upper winding insulation 6 and lower winding insulation 7, the upper end of each winding 2 and upper winding insulation 6
It is fixedly connected, lower end is fixedly connected with lower winding insulation 7.
The present invention is a Scott Transformer, as the transformer in rail vehicle system in use, then installing
The end B and C-terminal on the winding 2 on the first side column 131, being also mounted on the end A on the winding 2 on the second side column 132 can be with
Three phase supply circuit is electrically connected.The end b1 and the end b2 being mounted on the winding 2 on the first side column 131 then can be with railcars
A load in system is electrically connected, and the end a1 and the end a2 on the winding 2 being mounted on the second side column 132 then can be with rails
Another load in road Vehicular system is electrically connected.The electric energy of three-phase electrical power system can be transferred to two by the present invention as a result,
In respective load-carrying single-phase load, the transformation of three phase transformation two-phases is realized, to be convenient for the work of two loads.
By setting compensation iron yoke 12 in the present invention, accordingly even when disconnected phase occurs in the present invention, the magnetic flux distribution at iron core 1
It can still remain stable, so that the present invention can still work in the state of disconnected phase, i.e., it is with self protective function,
Improve safety in utilization and reliability of the invention.
Pass through setting shunt capacitance 23, one side energy uniform electric field, on the other hand, in the present invention by thunder in the present invention
It hits or when overvoltage, a part of voltage being subject to can be imported into ground, reduce the breakdown probability of the present invention, improve this
The anti-lightning of invention, the ability of anti overvoltage further increase safety and functional reliability of the invention.
Wave thin slice 3 also is inhaled by the way that damping is arranged between the adjacent winding wire turn 210 in the present invention, decays and absorbs with this
Certain electromagnetic wave is shielded, mechanical strength of the winding 2 under electromagnetic viscosimeter is improved, to improve the service life of winding 2, is guaranteed
Using effect of the invention.
To sum up, the present invention has certain self-insurance ability than conventional transformer, reduces user's transformation cost, extends the equipment longevity
Life, is of great significance to the reliability operation of domestic and international track traffic electric power locomotive, there is more significant economic and social profit.
Above-described is only some embodiments of the present invention.For those of ordinary skill in the art, not
Under the premise of being detached from the invention design, various modifications and improvements can be made, these belong to protection model of the invention
It encloses.
Claims (8)
1. a kind of phase shortage can self-insurance band compensate iron yoke Scott Transformer, which is characterized in that including iron core (1), winding (2), resistance
Buddhist nun inhale wave thin slice (3), shunt capacitance (4) and compensation iron yoke (5), the winding (2) be it is multiple, multiple windings (2) are pacified
On iron core main body (11), the winding (2) includes multiple winding wire turns (210), and multiple winding wire turns (210) are successively
It is connected, the damping is inhaled wave thin slice (3) and is set between adjacent winding wire turn (210), and the shunt capacitance (4) is parallel to winding
(2) on, the compensation iron yoke (5) is connected with iron core (1).
2. a kind of phase shortage according to claim 1 can self-insurance band compensate iron yoke Scott Transformer, which is characterized in that it is described
Iron core (1) includes upper yoke (11), lower yoke (12) and stem (13), and one end of the stem (13) is connected with upper yoke (11)
It connects, the other end is connected with lower yoke (12), and compensation iron yoke (5) is connected with the bottom of lower yoke (12).
3. a kind of phase shortage according to claim 2 can self-insurance band compensate iron yoke Scott Transformer, which is characterized in that it is described
Stem (13) includes the first side column (131), the second side column (132) and principal post (133), first side column (131), the second side column
(132) it is arranged in parallel with principal post (133).
4. a kind of phase shortage according to claim 2 can self-insurance band compensate iron yoke Scott Transformer, which is characterized in that it is described
The horizontal cross-section of lower yoke (12) and the horizontal cross-section of compensation iron yoke (5) match.
5. a kind of phase shortage according to claim 1 can self-insurance band compensate iron yoke Scott Transformer, which is characterized in that it is described
It is high molecular polymer thin slice that wave thin slice (3) are inhaled in damping.
6. a kind of phase shortage according to claim 1 can self-insurance band compensate iron yoke Scott Transformer, which is characterized in that it is described
Winding (2) includes high-voltage winding (21) and low pressure winding (22), is equipped between the high-voltage winding (21) and low pressure winding (22)
Main empty path, the shunt capacitance (4) pass through main empty path.
7. a kind of phase shortage according to claim 1 can self-insurance band compensate iron yoke Scott Transformer, which is characterized in that including
Upper winding insulation (6) and lower winding insulation (7), the upper winding insulation (6) are connected with the upper end of winding (2), it is described under around
Group insulation (7) is connected with the lower end of winding (2).
8. a kind of phase shortage according to claim 1 can self-insurance band compensate iron yoke Scott Transformer, which is characterized in that it is described
Winding (2) is equipped with tap (21), and one end and tap (21) of the shunt capacitance (4) are electrically connected, other end ground connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910017211.9A CN109473266B (en) | 2019-01-08 | 2019-01-08 | Phase-loss self-carrying compensating iron yoke Scott transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910017211.9A CN109473266B (en) | 2019-01-08 | 2019-01-08 | Phase-loss self-carrying compensating iron yoke Scott transformer |
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| Publication Number | Publication Date |
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| CN109473266A true CN109473266A (en) | 2019-03-15 |
| CN109473266B CN109473266B (en) | 2023-09-12 |
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|---|---|---|---|---|
| CH374422A (en) * | 1958-05-16 | 1964-01-15 | Siemens Ag | Device to compensate the influence of external fields in an induction meter |
| DE3414581A1 (en) * | 1984-04-17 | 1985-10-24 | Transformatoren Union Ag, 7000 Stuttgart | Inductor having yokes which are arranged at the ends above and below the windings |
| CN1041249A (en) * | 1989-09-18 | 1990-04-11 | 王灿文 | Industrial-frequency phase transformer |
| JPH09289125A (en) * | 1996-04-24 | 1997-11-04 | Toshiba Corp | Inside-core single-phase autotransformer |
| CN201478053U (en) * | 2009-08-21 | 2010-05-19 | 四川金成铭电器有限责任公司 | Transformer with D-type iron yoke structure |
| CN103680888A (en) * | 2013-11-29 | 2014-03-26 | 西安交通大学苏州研究院 | Magnetic-integration three-phase filter transformer |
| CN204668101U (en) * | 2015-03-27 | 2015-09-23 | 顺特电气设备有限公司 | The winding construction of separate unit rectifier transformer |
| CN205943679U (en) * | 2016-08-12 | 2017-02-08 | 江苏道盛科技股份有限公司 | It holds intelligent transformer core to have to carry to transfer |
| CN108231366A (en) * | 2017-12-29 | 2018-06-29 | 上海意兰可电力电子设备有限公司 | Three-phase high frequency transformer |
| CN108428538A (en) * | 2018-05-22 | 2018-08-21 | 卧龙电气银川变压器有限公司 | A kind of not equal appearance scott drauqht transformer |
| CN209447671U (en) * | 2019-01-08 | 2019-09-27 | 广东奥莱恩电力科技股份有限公司 | A kind of phase shortage can self-insurance band compensate iron yoke Scott Transformer |
-
2019
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| DE3414581A1 (en) * | 1984-04-17 | 1985-10-24 | Transformatoren Union Ag, 7000 Stuttgart | Inductor having yokes which are arranged at the ends above and below the windings |
| CN1041249A (en) * | 1989-09-18 | 1990-04-11 | 王灿文 | Industrial-frequency phase transformer |
| JPH09289125A (en) * | 1996-04-24 | 1997-11-04 | Toshiba Corp | Inside-core single-phase autotransformer |
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| CN109473266B (en) | 2023-09-12 |
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