CN105448504B - Vv wiring rewinding material tractive transformers - Google Patents
Vv wiring rewinding material tractive transformers Download PDFInfo
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- CN105448504B CN105448504B CN201511011191.2A CN201511011191A CN105448504B CN 105448504 B CN105448504 B CN 105448504B CN 201511011191 A CN201511011191 A CN 201511011191A CN 105448504 B CN105448504 B CN 105448504B
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- 239000000463 material Substances 0.000 title claims abstract description 32
- 238000004804 winding Methods 0.000 claims abstract description 136
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 29
- 229910000976 Electrical steel Inorganic materials 0.000 claims abstract description 9
- 229910052742 iron Inorganic materials 0.000 claims abstract description 7
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 claims description 53
- 238000000605 extraction Methods 0.000 claims description 13
- 230000017105 transposition Effects 0.000 claims description 12
- 230000009466 transformation Effects 0.000 claims description 4
- 230000001360 synchronised effect Effects 0.000 claims description 3
- 239000003921 oil Substances 0.000 description 8
- 238000010586 diagram Methods 0.000 description 5
- 238000009413 insulation Methods 0.000 description 5
- 238000010276 construction Methods 0.000 description 3
- 239000004020 conductor Substances 0.000 description 2
- 238000003475 lamination Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 238000000844 transformation Methods 0.000 description 2
- 230000004888 barrier function Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000000819 phase cycle Methods 0.000 description 1
- 230000001502 supplementing effect Effects 0.000 description 1
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Abstract
Vv wiring rewinding material tractive transformers, are related to a kind of transformer.At present, Vv wiring rewinding material tractive transformer uses laminated core, and silicon steel sheet dosage is big, and open circuit loss is high.The present invention includes two single-phase transformers, two single-phase transformers synthesize a tractive transformer by wiring, two single-phase transformers include the unshakable in one's determination and outer winding for being around in iron core, iron core is the circular section single frame closing structure rolled by silicon steel sheet, and the unshakable in one's determination of single frame closing structure forms two principal posts and upper and lower iron yoke；One single-phase transformer sets the iron core of a single frame closing structure, the low pressure winding series connection of same single-phase transformer, the high pressure windings in series of same single-phase transformer；Two single-phase transformers are located in same casing or are individually located in two tanks.The silicon steel sheet dosage of the technical program is small, open circuit loss drop.
Description
Technical field
The present invention relates to a kind of transformer, especially Vv wiring rewinding material tractive transformer.
Background technology
At present, China uses laminated core for the tractive transformer core construction of direct-furnish mode electric railway.
It is that silicon steel sheet dosage is big using the shortcomings that laminated core, open circuit loss is high.Cutting and closed assembly mistake in transformer iron core lamination
Cheng Zhong, the burr of lamination is big, the lap width at laminate corners, all directly influences transformer noload losses.
The content of the invention
The technical problem to be solved in the present invention and the technical assignment proposed are prior art to be improved with being improved,
Vv wiring rewinding material tractive transformers are provided, to reach the purpose for reducing open circuit loss.Therefore, the present invention takes following technical side
Case.
Vv wiring rewinding material tractive transformers, it is characterised in that：Including two single-phase transformers, two single-phase transformers pass through
Wiring synthesizes a tractive transformer, and two single-phase transformers include the unshakable in one's determination and outer winding for being around in iron core, and iron core is by silicon steel sheet
The circular section single frame closing structure rolled, the unshakable in one's determination of single frame closing structure form two principal posts and upper and lower iron yoke；One list
Phase transformer sets the iron core of a single frame closing structure, the low pressure winding series connection of same single-phase transformer, same single-phase transformer
High pressure windings in series；Two single-phase transformers are located in same casing or are individually located in two tanks.The iron core of tractive transformer
Structure uses rewinding material structure type, and silicon steel sheet dosage can be obviously reduced, open circuit loss reduce by 30% or so, no-load current and
Transformer noise is obviously reduced, and is advantageous to reduce overall volume, saves material.Two single-phase transformers are by either internally or externally
Connection, synthesize an independent Vv wiring rewinding material tractive transformer.Two single-phase transformers, can be according to product scene
The amount of capacity etc. of traffic condition, transformer, is designed as two independent single-phase transformers, i.e. branch mailbox transformer, passes through outside
Wiring is linked to be the three-phase electric traction transformer of VV wiring；It may be designed in two single-phase transformers and share a casing, by interior
Portion's wiring is linked to be the three-phase transformer of VV wiring, i.e. case transformer altogether.
As further improving and supplementing to above-mentioned technical proposal, present invention additionally comprises following additional technical feature.
Two principal posts and the sectional area of upper and lower iron yoke and the appearance and size in section being made up of the iron core of single frame closing structure are equal
It is equal.It is directly easy to process by coiling can, it is simple in construction.
Two single-phase transformers are respectively the first single-phase transformer, the second single-phase transformer, and the first single-phase transformer includes the
One principal post, the second principal post, with one heart the first low pressure winding for being around in the first principal post outside, outer the first high pressure for being around in the first low pressure winding
Winding, with one heart the second low pressure winding for being around in the second principal post outside, outer the second high pressure winding for being around in the second low pressure winding；Second is single
Phase transformer includes the 3rd principal post, the 4th principal post, the 3rd low pressure winding for being around in the 3rd principal post outside, outer is with one heart around in the 3rd low pressure
3rd high pressure winding of winding, the 4th low pressure winding for being around in the 4th principal post outside, it is around in the 4th of the 4th low pressure winding outside with one heart
High pressure winding；First low pressure winding is connected with the second low pressure winding；First high pressure winding, the second high pressure windings in series；3rd is low
Pressure winding is connected with the 4th low pressure winding；3rd high pressure winding, the 4th high pressure windings in series.
The first described single-phase transformer is AB phase transformers, and the second described single-phase transformer is BC phase transformers；The
The extraction of starting of one high pressure winding is used as A phases end of incoming cables；The last head of first high pressure winding is connected with the last head of the second high pressure winding,
The extraction of starting started with the 3rd high pressure winding of second high pressure winding be used as B phases end of incoming cables, the last head of the 3rd high pressure winding and
The last head of 4th high pressure winding is connected, and the extraction of starting of the 4th high pressure winding is used as C phases end of incoming cables.
The extraction of starting of first low pressure winding is used as T1 phase leading-out terminals, the last head and the second low pressure winding of the first low pressure winding
Last head be connected；The extraction of starting of second low pressure winding is used as X1 phase leading-out terminals；Conduct is drawn in starting for 3rd low pressure winding
T2 phase leading-out terminals, the last head of the 3rd low pressure winding and the last head of the 4th low pressure winding are connected；4th starting for low pressure winding is drawn
Go out as X2 phase leading-out terminals.
Coordinated transposition between X1 phases leading-out terminal and T2 phase leading-out terminals, make T1 phases leading-out terminal, T2 phases leading-out terminal, X1 phase outlets
End, X2 phases leading-out terminal are arranged in order as suitable.
X1 phases leading-out terminal realizes coordinated transposition with T2 phases leading-out terminal by cross-buss self-transposition device, and described intersection is drawn
Line self-transposition device includes core body, opens up helical lead wire passage in described core body wall, and described helical lead wire passage includes the
The incoming line of one helical lead wire passage and the second helical lead wire passage, the first helical lead wire passage and the second helical lead wire passage
It is respectively positioned on one of end face of core body, the line outlet of the first helical lead wire passage and the second helical lead wire passage is respectively positioned on core body
Another end face, the first helical lead wire passage and the second helical lead wire passage the spiral half cycle in the same direction in core body wall, make same
Location swap of the incoming line and line outlet of helical lead wire passage in core body both ends of the surface.Pass through the symmetrical friendship of incoming line and line outlet
Fork transposition realizes that lead intersects automatic position-changing.
The cylindrical hole run through is axially arranged among described core body, is provided with the cylindrical hole run through among described core body
" Ⅹ " type keel shoe.Through hole among core body is easy to insulating oil oil stream to radiate；Supported using " Ⅹ " type keel shoe, Neng Gourang
Core body is internally formed multiple oil and paper webs and forms the insulation barriers of big oil duct ground paper cylinder, has fully ensured that between cross-buss
Insulating properties.
First helical lead wire passage and the first helical lead wire passage axially equidistantly synchronously revolve along core body in helical form in the same direction
Turn, and the distance between remain constant.Helical lead wire passage is axially equidistantly synchronously revolved in helical form in the same direction along core body
Turn, the distance between remain constant.Beeline can be realized by way of the equidistant synchronous rotary of helical form in the same direction
Coordinated transposition.
Core body is provided with the small through hole of multiple radial directions, and described small through hole communicates with helical lead wire passage；Described is small logical
The diameter in hole is more than or equal to the diameter of helical lead wire passage.Two helical lead wire passages it is lateral along two passes center line
On be evenly distributed with multiple small through hole, small through hole is more than or equal to helical lead wire passage perpendicular to core body side, the diameter of through hole
Diameter, insulating oil can be facilitated to enter lead channels, have electric current by adstante febre in lead, heat is taken away by oil stream, played
The effect of radiating.
Beneficial effect：（1）Using rewinding material structure, the dosage of silicon steel sheet amount ratio tradition laminated core can be made to reduce by 15% left side
It is right；（2）Open circuit loss reduces by 30% or so；（3）Transformer noise can reduce 20dB or so；（4）Appearance and size can be more folded than tradition
Core construction reduces 10% or so.（5）Pass through internal special transposition passage so that lead during one for entering and going out just
Transposition is realized, not only avoid the lead clamping device of practical very complicated, while can also effectively be prevented between lead
Electric discharge, preferably ensure that the safe and stable operation of transformer.
Brief description of the drawings
Figure 1A is main structure diagram of the present invention.
Figure 1B is overlooking the structure diagram of the present invention.
Fig. 2 is the assembling schematic diagram of the cross-buss self-transposition device of the present invention.
Fig. 3 is the cross-buss self-transposition device side perspective structure schematic diagram of the present invention.
Fig. 4 is the cross-buss self-transposition device overlooking the structure diagram of the present invention.
In figure：1-the first principal post；2-the second principal post；3-the three principal post；4-the four principal post；5-AB phase transformers；
6-BC phase transformers；7-the first high pressure winding；8-the first low pressure winding；9-the second high pressure winding；10-the second low pressure around
Group；11-the three high pressure winding；12-the three low pressure winding；13-the four high pressure winding；14-the four low pressure winding；A、B、
C-high-pressure side input；T1, T2, X1, X2-low-pressure side output end；15- cross-buss self-transposition devices；1501- core bodys；
1502- helical lead wire passages；1521- the first helical lead wire passages；1522- the second helical lead wire passages；1503- " Ⅹ " type keel
Frame；1504- gap；1505- annular separations；1506- small through hole；1507- leads；1508- conductor grips.
Embodiment
Technical scheme is described in further detail below in conjunction with Figure of description.
As shown in Figure 1A, 1B, the technical program includes two single-phase transformers, and two single-phase transformers are synthesized by wiring
One tractive transformer, two single-phase transformers include the unshakable in one's determination and outer winding for being around in iron core, and iron core forms to be rolled by silicon steel sheet
Circular section single frame closing structure, the unshakable in one's determination of single frame closing structure form two principal posts and upper and lower iron yoke；One single-phase transformer
If the iron core of a single frame closing structure, the low pressure winding series connection of same single-phase transformer, the high voltage winding of same single-phase transformer
Group series connection；Two single-phase transformers are located in same casing or are individually located in two tanks.Tractive transformer include the first principal post 1,
Second principal post 2, the 3rd principal post 3, the 4th principal post 4 and be wound in one heart the first high pressure winding 7 on rewinding material post, the first low pressure around
The 8, second high pressure winding 9 of group, the second low pressure winding 10, the 3rd high pressure winding 11, the 3rd low pressure winding 12, the 4th high pressure winding
13rd, the 4th low pressure winding 14, the 6 second single-phase change of the single-phase transformer of AB phase transformers 5 first and BC phase transformers is thus constituted
Two single-phase transformers of depressor.Wherein the first low pressure winding 8, the second low pressure winding 10, the 3rd low pressure winding 12, the 4th low pressure around
Group 14 as Vv Connection Traction Transformers low pressure winding be wound in respectively the first principal post 1, the second principal post 2, the 3rd principal post 3,
On 4th principal post 4, and the first high pressure winding 7, the second high pressure winding 9, the 3rd high pressure winding 11, the 4th high pressure winding 13 are then made
The first low pressure winding 8, the second low pressure winding 10, the 3rd low pressure are wound in respectively for the high voltage winding group of Vv Connection Traction Transformers
On winding 12, the 4th low pressure winding 14.
D and D ' be respectively the first high pressure winding 7 start with last head, d and d ' be respectively the first low pressure winding 8 start and
Last head, E and E ' be respectively the second high pressure winding 9 start with last head, e and e ' be respectively the second low pressure winding 10 start and end
Head, F and F ' be respectively the 3rd high pressure winding 11 start with last head, f and f ' be respectively the 3rd low pressure winding 12 start and end
Head, G and G ' be respectively the 4th high pressure winding 13 start with last head, g and g ' be respectively the 4th low pressure winding 14 start and end
Head, the cable connector of winding is drawn from winding both ends respectively.
In the design of Vv wiring rewinding material tractive transformers, according to the requirement of technical protocol, capacity phase is separately designed out
With or different AB phase transformers 5 and BC phase transformers 6, then good capacity sequence according to the rules, is arranged successively from left to right
AB phase transformers 5 and BC phase transformers 6 are arranged.A phase, B phase, C phase is the phase of the end of incoming cables of Vv wiring rewinding material tractive transformers
Sequence indicates.T1 phases, T2 phases, X1 phases, X2 phases indicate for the phase sequence of the leading-out terminal of Vv wiring rewinding material tractive transformers.
The D that starts of first high pressure winding 7 of AB phase transformers 5 is directly led out to be entered as Vv wiring rewinding material tractive transformers
The A phases of line end, the G that starts of the 4th high pressure winding 14 of BC phase transformers 6 are directly led out as Vv wiring rewinding material traction voltage transformations
The C phases of device end of incoming cables, after the last head D ' extractions of the first high pressure winding 7 and after the last head E ' series connection of the second high pressure winding 9, by second
The E extractions of starting of high pressure winding 9.Similarly, the 4th high pressure winding 14 of BC phase transformers 6 last head G ' draw after and the 3rd high pressure
After the last head F ' series connection of winding 11, drawn by the F that starts of the 3rd high pressure winding 11.Then, with reference to preceding described AB phase-change pressures
The E that starts of the second high pressure winding 9 in device 5, parallel connection is carried out between the two, then draw and be used as Vv wiring rewinding material traction voltage transformations
The B phases of device end of incoming cables.
The d that starts of first low pressure winding 8 of AB phase transformers 5 is directly led out, as Vv wiring rewinding material tractive transformers
The last head e ' of the T1 phases of leading-out terminal, last head d ' and the second low pressure winding 10 is serially connected, and is drawn by the e that starts of the second low pressure winding 10
Go out, the X1 phases as Vv wiring rewinding material tractive transformers end of incoming cables.Similarly, the 4th low pressure winding 14 of BC phase transformers 6
The g that starts is directly led out, as the X2 phases of Vv wiring rewinding material tractive transformer leading-out terminals, last head g ' and the 3rd low pressure winding 12
Last head f ' is serially connected, and is drawn by the f that starts of the 3rd low pressure winding 12, as Vv wiring rewinding material tractive transformers end of incoming cables
T2 phases.
X1 phases leading-out terminal realizes coordinated transposition with T2 phases leading-out terminal by cross-buss self-transposition device 15.Cross-buss is certainly
As shown in Figure 2,3, 4, it includes core body 1501 to transposer 15, and helical lead wire passage 1502, spiral are opened up in the wall of core body 1501
Lead channels 1502 include the first helical lead wire passage 1521 and the second helical lead wire passage 1522, the first helical lead wire passage
1521 and second the incoming line of helical lead wire passage 1522 be respectively positioned on one of end face of core body 1501, the first helical lead wire leads to
The line outlet of the helical lead wire passage 1522 of road 1521 and second is respectively positioned on another end face of core body 1501, and the first helical lead wire leads to
The helical lead wire passage 1522 of road 1521 and second spiral half cycle in the same direction in the wall of core body 1501, makes entering for same helical lead wire passage
The location swap of line mouth and line outlet in the both ends of the surface of core body 1501.
For convenience realize that lead intersects automatic position-changing, and be easy to radiate, prevent the electric discharge between lead, preferably
Ensure the safe and stable operation of transformer, the cylindrical hole run through is axially arranged among core body 1501, is run through among core body 1501
It is provided with " Ⅹ " type keel shoe 1503 in cylindrical hole, the incoming lines of two helical lead wire passages 1502 is located at its of core body 1501
In an end face, the line outlet of two helical lead wire passages 1502 is located at another end face of core body 1501, helical lead wire passage
1502 be along core body 1501 be in axially the equidistant synchronous rotary of helical form in the same direction, the distance between remain constant, two
Helical lead wire passage incoming line and line outlet transposition, every helical lead wire passage 1502 it is lateral along on two passes center line
3 small through hole 1506 are evenly distributed with, small through hole 1506 is perpendicular to the side of core body 1501, the diameter of small through hole 1506 and two spiral shells
The diameter of rotation lead channels 1502 is equal, and the position of the end face incoming line of core body 1501 and line outlet is provided with draws more than spiral
The gap 1504 of line passage 1502, the inner side of the both ends of the surface of core body 1501 are provided with the annular separation 1505 higher than end face.
At the product design initial stage, according to the voltage class and capacity of transformer, by determining leader cable 1507 after calculating
Specification, it is then determined that the diameter of helical lead wire passage 1502 can ensure that leader cable 1507 can pass through；According to transformation
Device voltage class, the insulation distance between leader cable 1507 is determined, finally determines the arc length distance of helical lead wire passage 1502,
Ensure that insulation distance disclosure satisfy that test requirements document, by transformer arrangement figure, calculate the coordinated transposition of helical lead wire passage 1502
The space length at place, then the length of core body 1501 of reasonable selection cross-buss self-transposition device and 1501 peripheral end face of core body are high
Spend size.
In assembling process, two leader cables 1507 are each passed through helical lead wire passage 1502, then along spiral
Lead channels 1502 are drawn naturally, and the now transposition of two leader cables 1507 is internally completed.
According to transformer voltage grade and insulation distance, to determine that the wire insulation beyond cross-buss self-transposition device is thick
Degree, in the inlet and outlet position of leader cable 1507, the length of taper is controlled, finally by being distributed in cross-buss self-transposition
The conductor grip 1508 on device both sides clamps two leader cables 1507, and the leader cable 1507 is in full extension shape
State, so that cross-buss self-transposition device is also at the state that a relative horizontal position is fixed.
After cross-buss self-transposition device installs, it is ensured that passed through among the core body 1501 where " Ⅹ " type keel shoe 1503
It is no blocked state to wear cylinder hole path, it is ensured that insulating oil can be allowed to flow freely in each small through hole 1506, to ensure lead
The heat of cable 1507 is taken away in time by oil stream.
Vv wiring rewinding material tractive transformers shown in figure 1 above A, 1B, 2,3,4 are the specific embodiments of the present invention,
Through embodying substantive distinguishing features of the present invention and progress, under the enlightenment of the present invention, it can be carried out according to the use needs of reality
The equivalent modifications of shape, structure etc., this programme protection domain row.
Claims (9)
1.Vv wiring rewinding material tractive transformers, it is characterised in that：Including two single-phase transformers, two single-phase transformers are by connecing
Line synthesizes a tractive transformer, and two single-phase transformers include the unshakable in one's determination and outer winding for being around in iron core, and iron core is by silicon-steel sheet coiled
The circular section single frame closing structure formed is made, the unshakable in one's determination of single frame closing structure forms two principal posts and upper and lower iron yoke；One single-phase
Transformer sets the iron core of a single frame closing structure, and the low pressure winding of same single-phase transformer is connected, same single-phase transformer
High pressure windings in series；Two single-phase transformers are located in same casing or are individually located in two tanks；Two single-phase transformers are respectively
First single-phase transformer, the second single-phase transformer, the first single-phase transformer include the first principal post（1）, the second principal post（2）, outside around
In the first principal post（1）The first low pressure winding（8）, outer be with one heart around in the first low pressure winding（8）The first high pressure winding（7）, it is outer
It is around in the second principal post（2）The second low pressure winding（10）, outer be with one heart around in the second low pressure winding（10）The second high pressure winding
（9）；Second single-phase transformer includes the 3rd principal post（3）, the 4th principal post（4）, be around in the 3rd principal post outside（3）The 3rd low pressure winding
（12）, outer be with one heart around in the 3rd low pressure winding（12）The 3rd high pressure winding（11）, be around in the 4th principal post outside（4）The 4th low pressure
Winding（14）, outer be with one heart around in the 4th low pressure winding（14）The 4th high pressure winding（13）；Second low pressure winding（10）Start
Extraction is used as X1 phase leading-out terminals；3rd low pressure winding（12）Start extraction be used as T2 phase leading-out terminals, X1 phases leading-out terminal and T2 phases
Leading-out terminal realizes coordinated transposition by cross-buss self-transposition device, and described cross-buss self-transposition device includes core body
（1501）, described core body（1501）Helical lead wire passage is opened up in wall（1502）, described helical lead wire passage（1502）Bag
Include the first helical lead wire passage（1521）With the second helical lead wire passage（1522）, the first helical lead wire passage（1521）With
Two helical lead wire passages（1522）Incoming line be respectively positioned on core body（1501）One of end face, the first helical lead wire passage
（1521）With the second helical lead wire passage（1522）Line outlet be respectively positioned on core body（1501）Another end face, the first spiral draws
Line passage（1521）With the second helical lead wire passage（1522）In core body（1501）Spiral half cycle in the same direction, draws same spiral in wall
The incoming line and line outlet of line passage are in core body（1501）The location swap of both ends of the surface.
2. Vv wiring rewinding material tractive transformer according to claim 1, it is characterised in that：By the iron of single frame closing structure
Two principal posts and the sectional area of upper and lower iron yoke and the appearance and size in section that the heart is formed are equal.
3. Vv wiring rewinding material tractive transformer according to claim 1, it is characterised in that：First low pressure winding（8）With
Second low pressure winding（10）Series connection；First high pressure winding（7）, the second high pressure winding（9）Series connection；3rd low pressure winding（12）With
Four low pressure windings（14）Series connection；3rd high pressure winding（11）, the 4th high pressure winding（13）Series connection.
4. Vv wiring rewinding material tractive transformer according to claim 3, it is characterised in that：The first described single-phase transformation
Device is AB phase transformers（5）, the second described single-phase transformer is BC phase transformers（6）；First high pressure winding（7）Start and draw
Go out as A phases end of incoming cables；First high pressure winding（7）Last head and the second high pressure winding（9）Last head be connected, the second high pressure winding
（9）Start and the 3rd high pressure winding（11）Start extraction be used as B phases end of incoming cables, the 3rd high pressure winding（11）Last head and
Four high pressure windings（13）Last head be connected, the 4th high pressure winding（13）Start extraction be used as C phases end of incoming cables.
5. Vv wiring rewinding material tractive transformer according to claim 4, it is characterised in that：First low pressure winding（8）'s
Extraction of starting is used as T1 phase leading-out terminals, the first low pressure winding（8）Last head and the second low pressure winding（10）Last head be connected；The
Three low pressure windings（12）Last head and the 4th low pressure winding（14）Last head be connected；4th low pressure winding（14）Extraction of starting
As X2 phase leading-out terminals.
6. Vv wiring rewinding material tractive transformer according to claim 5, it is characterised in that：X1 phases leading-out terminal goes out with T2 phases
Coordinated transposition between line end, T1 phases leading-out terminal, T2 phases leading-out terminal, X1 phases leading-out terminal, X2 phases leading-out terminal is set to be arranged in order by suitable.
7. Vv wiring rewinding material tractive transformer according to claim 6, it is characterised in that：Described core body（1501）In
Between be axially arranged with the cylindrical hole run through, described core body（1501）" Ⅹ " type keel shoe is provided with the cylindrical hole that centre is run through
（1503）.
8. Vv wiring rewinding material tractive transformer according to claim 6, it is characterised in that：First helical lead wire passage
（1521）With the first helical lead wire passage（1522）Along core body（1501）It is in axially the equidistant synchronous rotary of helical form in the same direction, and it
Between distance remain constant.
9. Vv wiring rewinding material tractive transformer according to claim 6, it is characterised in that：Core body is provided with multiple radial directions
Small through hole（1506）, described small through hole and helical lead wire passage（1502）Communicate；Described small through hole（1506）Diameter
More than or equal to helical lead wire passage（1502）Diameter.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511011191.2A CN105448504B (en) | 2015-12-30 | 2015-12-30 | Vv wiring rewinding material tractive transformers |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511011191.2A CN105448504B (en) | 2015-12-30 | 2015-12-30 | Vv wiring rewinding material tractive transformers |
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| Publication Number | Publication Date |
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| CN105448504A CN105448504A (en) | 2016-03-30 |
| CN105448504B true CN105448504B (en) | 2017-11-17 |
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| CN201511011191.2A Active CN105448504B (en) | 2015-12-30 | 2015-12-30 | Vv wiring rewinding material tractive transformers |
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| CN109950033A (en) * | 2019-04-15 | 2019-06-28 | 特变电工沈阳变压器集团有限公司 | A kind of Vv of variable flux voltage variation (VFVV) connects tractive transformer |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04116809A (en) * | 1990-09-07 | 1992-04-17 | Toshiba Corp | Iron core of transformer |
| CN2807427Y (en) * | 2005-07-21 | 2006-08-16 | 云南变压器电气股份有限公司 | Combined transformer |
| CN2911908Y (en) * | 2006-03-07 | 2007-06-13 | 云南变压器电气股份有限公司 | Vv coupled and combined traction transformer |
| CN200953272Y (en) * | 2006-04-03 | 2007-09-26 | 卧龙电气集团股份有限公司 | Three-phase V/V tractive transformer structure |
| CN201616346U (en) * | 2009-12-01 | 2010-10-27 | 卧龙电气集团股份有限公司 | Transposition device for transposed conductor |
| CN202178141U (en) * | 2011-07-28 | 2012-03-28 | 山东达驰电气有限公司 | Lead structure of Vv couple traction transformer |
| CN202384159U (en) * | 2011-12-28 | 2012-08-15 | 卧龙电气集团股份有限公司 | Traction transformer in Scott connexion |
| CN204067011U (en) * | 2014-09-30 | 2014-12-31 | 卧龙电气集团股份有限公司 | A kind of rewinding material autotransformer |
| CN104538161A (en) * | 2014-09-30 | 2015-04-22 | 卧龙电气集团股份有限公司 | A body structure of AT power roll-core autotransformer |
| CN205230794U (en) * | 2015-12-30 | 2016-05-11 | 卧龙电气集团股份有限公司 | Traction transformer unshakable in one's determination is rolled up in vv wiring |
-
2015
- 2015-12-30 CN CN201511011191.2A patent/CN105448504B/en active Active
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| CN105448504A (en) | 2016-03-30 |
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Effective date of registration: 20190419 Address after: 750000 No. 221 Xingyuan Road, Xingqing District, Yinchuan City, Ningxia Hui Autonomous Region Patentee after: WOLONG ELECTRIC YINCHUAN TRANSFORMER Co.,Ltd. Address before: 312300 No. 1801 Renmin West Road, Shangyu City, Shaoxing City, Zhejiang Province Co-patentee before: WOLONG ELECTRIC YINCHUAN TRANSFORMER Co.,Ltd. Patentee before: WOLONG ELECTRIC GROUP Co.,Ltd. |
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Denomination of invention: VV wiring coil iron core traction transformer Effective date of registration: 20231127 Granted publication date: 20171117 Pledgee: Ningxia East Guarantee Co.,Ltd. Pledgor: WOLONG ELECTRIC YINCHUAN TRANSFORMER Co.,Ltd. Registration number: Y2023640000044 |
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