CN105702440B - V/X and VV wiring general-purpose transformers - Google Patents
V/X and VV wiring general-purpose transformers Download PDFInfo
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- CN105702440B CN105702440B CN201511010931.0A CN201511010931A CN105702440B CN 105702440 B CN105702440 B CN 105702440B CN 201511010931 A CN201511010931 A CN 201511010931A CN 105702440 B CN105702440 B CN 105702440B
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- 238000000605 extraction Methods 0.000 claims description 29
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 17
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- 229910052742 iron Inorganic materials 0.000 claims description 5
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Abstract
V/X and VV wiring general-purpose transformers, are related to a kind of transformer.At present, when the power supply mode of transformer needs change, it is necessary to substitute transformer, cost is high.The present invention includes two single-phase transformers, the connection for connecting winding connection end is arranged, two single-phase transformers synthesize a tractive transformer by wiring, two single-phase transformers include core limb and the outer winding for being around in core limb, one core limb is provided with interior low pressure winding, outer low-voltage line group and the high pressure winding being arranged concentrically, and described connection row is provided with the low-voltage wiring terminal being connected with interior low pressure winding, outer low-voltage line group terminals；When for the V/X modes of connection when, interior low pressure winding is connected with the outer low pressure winding on another core limb of same single-phase transformer on a core limb, and a single-phase transformer forms the low pressure winding groups of two series connection, the high pressure windings in series of same single-phase transformer.The present invention realizes the exchange of two kinds of transformers and general, reduces the waste of existing resource.
Description
Technical field
The present invention relates to a kind of transformer, especially V/X and VV wiring general-purpose transformer.
Background technology
At present, more by the way of AT power supply modes and direct-furnish, AT power supplies are usual for the power supply of China's high-speed electric railway
From V/X Connection Traction Transformers, directly power supply generally selects Vv Connection Traction Transformers.The power supply mode of whole Traction networks
Selection and the connection type from which kind of tractive transformer, the power supply quality and power supply for directly determining tractive power supply system are imitated
Fruit.When the power supply mode of transformer needs change, it is necessary to substitute transformer, cost is high.
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,
V/X and VV wiring general-purpose transformers are provided, to reach the interchangeability and versatility of two kinds of transformers, reduce the wave of existing resource
Take, while strengthen the linking between existing AT power supply modes and direct-furnish mode, ensure that the purpose of applicability between the two.
Therefore, the present invention takes following technical scheme.
V/X and VV wiring general-purpose transformer includes two single-phase transformers, the connection for connecting winding connection end is arranged,
Two single-phase transformers synthesize a tractive transformer by wiring, and two single-phase transformers include core limb and are around in core limb outside
Winding, a core limb are provided with interior low pressure winding, outer low-voltage line group and the high pressure winding being arranged concentrically, and described connection row is provided with
The low-voltage wiring terminal being connected with interior low pressure winding, outer low-voltage line group terminals；When for the V/X modes of connection when, on a core limb
Interior low pressure winding is connected with the outer low pressure winding on another core limb of same single-phase transformer, and a single-phase transformer forms two
The low pressure winding of series connection, the high pressure windings in series of same single-phase transformer；When the V/X modes of connection are converted to the VV modes of connection,
Annexation of the low pressure winding terminals on connection row is adjusted, by what is be connected with the low pressure winding terminals in same iron core column
Low-voltage wiring terminal connects, and makes two low pressure windings connected of same single-phase transformer in parallel；High pressure winding connection is kept not
Become.Reach the interchangeability and versatility of two kinds of transformers, reduce the waste of existing resource, while strengthen existing AT power supply modes
Linking between direct-furnish mode, it ensure that applicability between the two.
As further improving and supplementing to above-mentioned technical proposal, present invention additionally comprises following additional technical feature.
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
Core limb and upper and lower iron yoke；One single-phase transformer sets the iron core of a single frame closing structure.The core construction of tractive transformer
Using rewinding material structure type, silicon steel sheet dosage can be obviously reduced, open circuit loss reduces by 30% or so, no-load current and transformation
Device noise is obviously reduced, and is advantageous to reduce overall volume, saves material.
Two core limbs 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
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, second are singly
Phase transformer is located at same casing；First single-phase transformer includes the first core limb, the second core limb, is around in the first core limb outside
First in low pressure winding, with one heart outer the first outer low pressure winding for being around in low pressure winding in first, it is outer with one heart that to be around in first low outside
Press the first high pressure winding of winding, be around in outside low pressure winding in the second of the second core limb, with one heart it is outer be around in second low pressure around
Second outer low pressure winding of group, with one heart outer the second high pressure winding for being around in the second outer low pressure winding；Second single-phase transformer includes
Third core post, four-limbed post, be around in outside low pressure winding in the 3rd of third core post, with one heart it is outer be around in the 3rd low pressure around
3rd outer low pressure winding of group, it is around in the 3rd high pressure winding of the 3rd outer low pressure winding outside with one heart, is around in four-limbed post outside
Low pressure winding in 4th, with one heart outer the 4th outer low pressure winding for being around in low pressure winding in the 4th, it is around in the 4th outer low pressure outside with one heart
4th high pressure winding of winding；Low pressure winding is connected with the second outer low pressure winding in first；In first outer low pressure winding and second
Low pressure winding is connected；First high pressure winding, the second high pressure windings in series；Low pressure winding and the 4th outer low pressure winding string in 3rd
Connection；3rd outer low pressure winding is connected with low pressure winding in the 4th；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 connects line end as A；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 connects line end as B, 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 connects line end as C；Low pressure winding rises in first
Head is drawn to connect line end as a1, and the last head of low pressure winding and the last head of the second outer low pressure winding are connected in first；Outside second
The extraction of starting of low pressure winding connects line end as x1；The extraction of starting of first outer low pressure winding connects line end as a2, and first
The last head of low pressure winding is connected in the last head of outer low pressure winding and second；The extraction of starting of low pressure winding is used as x2 phases in second
Terminals；The extraction of starting of low pressure winding connects line end as a3 in 3rd, the last head of low pressure winding and the 4th low outside in the 3rd
The last head of pressure winding is connected；The extraction of starting of 4th outer low pressure winding connects line end as x3；3rd outer low pressure winding rises
Head is drawn to connect line end as a4, and the last head of low pressure winding is connected in the last head and the 4th of the 3rd outer low pressure winding；In 4th
The extraction of starting of low pressure winding connects line end as x4；A1 connect line end, x1 connect line end, a2 connect line end, x2 connect line end,
A3 connect line end, x3 connect line end, a4 connect line end, x4 connect line end with connection row upper corresponding a1 phases low-voltage terminal, x1
Phase low-voltage terminal, a2 phases low-voltage terminal, x2 phases low-voltage terminal, a3 phases low-voltage terminal, x3 phases low-voltage terminal, a4 phases low-voltage terminal,
X4 phases low-voltage terminal connects；A connect line end, B connect line end, C connect line end with connection row upper corresponding A phases HV Terminal, B
Phase HV Terminal, the connection of C phases HV Terminal；When the V/X modes of connection are converted to the VV modes of connection, a1 phases low-voltage terminal and a2 phases
Between low-voltage terminal, between x1 phases low-voltage terminal and x2 phase low-voltage terminals, between a3 phases low-voltage terminal and a4 phase low-voltage terminals, x3
Increase wire connection between phase low-voltage terminal and x4 phase low-voltage terminals, HV Terminal wiring is constant.
X1 line end line end, x3 the line end line ends that connect with a4 that connect that connect with a2 that connect are filled by cross-buss self-transposition
Put and realize coordinated transposition, described cross-buss self-transposition device includes core body, and opening up helical lead wire in described core body wall leads to
Road, described helical lead wire passage include the first helical lead wire passage and the second helical lead wire passage, the first helical lead wire passage
One of end face of core body, the first helical lead wire passage and the second spiral are respectively positioned on the incoming line of the second helical lead wire passage
The line outlet of lead channels is respectively positioned on another end face of core body, and the first helical lead wire passage and the second helical lead wire passage are in core
Spiral half cycle in the same direction in body wall, make same helical lead wire passage incoming line and line outlet core body both ends of the surface location swap.
Realize that lead intersects automatic position-changing by the transposition of the symmetrical chiasma of incoming line and line outlet.
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 common box structure so that single volume is much smaller than two single-phase volume sums；（2）Pass through
External connection changes transformer connection form, more quick and convenient；（3）Using this transfer principle, the longevity can be made full use of
The transformer that spare transformer and house of correction in the life phase replace, has saved resource；（4）Simultaneously suitable for 110kV or
220kV level V/X wiring and Vv Connection Traction Transformers, reduce the investment cost of later stage electric substation's upgrading.
Brief description of the drawings
Fig. 1 is the Vv connection principle schematic diagrames of the present invention.
Fig. 2 is the V/X connection principle schematic diagrames of the present invention.
Fig. 3 is the external cabling schematic diagram of the present invention.
Fig. 4 is the assembling schematic diagram of the cross-buss self-transposition device of the present invention.
Fig. 5 is the cross-buss self-transposition device side perspective structure schematic diagram of the present invention.
Fig. 6 is the cross-buss self-transposition device overlooking the structure diagram of the present invention.
In figure：1-the first core limb；2-the second core limb；3-third core post；4-the four-limbed post；5-AB phases
Transformer；6-BC phase transformers；The high pressure windings of H1-first；Low pressure winding in T1-the first；The outer low pressure winding of F1-the first；
The high pressure windings of H2-second；Low pressure winding in F2-the second；The outer low pressure winding of T2-the second；The high pressure windings of H3-the 3rd； T3—
Low pressure winding in 3rd；The outer low pressure windings of F3-the 3rd；The high pressure windings of H4-the 4th；Low pressure winding in F4-the 4th；T4-the
Four outer low pressure windings；A, B, C-high-pressure side input；A1, a2, x1, x2, a3, a4, x3, x4-low pressure winding terminals；7- is handed over
Pitch lead self-transposition device；701- core bodys；702- helical lead wire passages；721- the first helical lead wire passages；The spirals of 722- second
Lead channels；703- " Ⅹ " type keel shoe；704- gap；705- annular separations；706- small through hole；707- leads；708- is led
Wire clamp.H1- the first high pressure windings；H2- the second high pressure windings；The high pressure windings of H3- the 3rd；The high pressure windings of H4- the 4th；L1- first
Low pressure winding；The low pressure windings of L2- second；The low pressure windings of L3- the 3rd；The low pressure windings of L4- the 4th；D, e, f, g-low pressure winding connect
Line end.
Embodiment
Technical scheme is described in further detail below in conjunction with Figure of description.
As shown in figure 1, in Vv elementary diagrams, including the first core limb 1, the second core limb 2, third core post 3,
Four-limbed post 4 and the first high pressure winding H1, the first low pressure winding L1, the second high pressure winding being wound in one heart on rewinding material post
H2, the second low pressure winding L2, the 3rd high pressure winding H3, the 3rd low pressure winding L3, the 4th high pressure winding H4, the 4th low pressure winding
L4, thus constitute the single-phase transformer of AB phase transformers 5 first and BC phase transformers 6 second single-phase transformer, two single-phase transformations
Device.Wherein the first low pressure winding L1, the second low pressure winding L2, the 3rd low pressure winding L3, the 4th low pressure winding L4 connect as Vv
The low pressure winding of line tractive transformer is wound in the first core limb 1, the second core limb 2, third core post 3, four-limbed respectively
On post 4, and the first high pressure winding H1, the second high pressure winding H2, the 3rd high pressure winding H3, the 4th high pressure winding H4 are then used as Vv
The high voltage winding group of Connection Traction Transformer is wound in the first low pressure winding L1, the second low pressure winding L2, the 3rd low pressure winding respectively
On L3, the 4th low pressure winding L4.
As shown in Fig. 2 in V/X elementary diagrams, low pressure winding L1, L2, L3, L4 in V/v elementary diagrams become respectively
Into two parts, i.e. L1 points are F1 and T1；L2 points are F2 and T2；L3 points are F3 and T3；L4 points are F4 and T4, meanwhile, low pressure wiring
End also becomes 8 by original 4, is respectively：A1, a2, a3, a4, x1, x2, x3, x4 terminals.Concrete structure is：This technology
Scheme includes the first single-phase transformer, the second single-phase transformer, and the first single-phase transformer, the second single-phase transformer are located at same case
Body；First single-phase transformer include the first core limb 1, the second core limb 2, be around in outside in the first of the first core limb 1 low pressure around
Group T1, with one heart outer the first outer low pressure winding F1 for being around in low pressure winding T1 in first, with one heart outside be around in the first outer low pressure winding F1
The first high pressure winding H1, be around in low pressure winding F2 in the second of the second core limb 2 outside, outer be with one heart around in low pressure winding in second
F2 the second outer low pressure winding T2, with one heart outer the second high pressure winding H2 for being around in the second outer low pressure winding T2；Second single-phase transformation
Device includes third core post 3, four-limbed post 4, is around in low pressure winding T3 in the 3rd of third core post 3 outside, is around in outside with one heart
The 3rd of low pressure winding T3 outer low pressure winding F3, with one heart outer the 3rd high pressure winding for being around in the 3rd outer low pressure winding F3 in 3rd
H3, low pressure winding F4 in the 4th of four-limbed post 4, with one heart outer the 4th outer low pressure for being around in low pressure winding F4 in the 4th are around in outside
Winding T4, with one heart outer the 4th high pressure winding H4 for being around in the 4th outer low pressure winding T4；It is low outside low pressure winding T1 and second in first
Press winding T2 series connection；First outer low pressure winding F1 connects with low pressure winding F2 in second；First high pressure winding H1, the second high voltage winding
Group H2 series connection；Low pressure winding T3 connects with the 4th outer low pressure winding T4 in 3rd；Low pressure in 3rd outer low pressure winding F3 and the 4th
Winding F4 connects；3rd high pressure winding H3, the 4th high pressure winding H4 connect.
The first described single-phase transformer is AB phase transformers 5, and the second described single-phase transformer is BC phase transformers 6；
First high pressure winding H1 extraction of starting connects line end as A；First high pressure winding H1 last head and the second high pressure winding H2's
Last head is connected, and the second high pressure winding H2 extraction of starting started with the 3rd high pressure winding H3 connects line end as B, the 3rd high pressure
Winding H3 last head is connected with the 4th high pressure winding H4 last head, and the 4th high pressure winding H4 extraction of starting connects line end as C；
Low pressure winding T1 extraction of starting connects line end as a1 in first, in first low pressure winding T1 last head and the second outer low pressure around
Group T2 last head is connected；Second outer low pressure winding T2 extraction of starting connects line end as x1；First outer low pressure winding F1's
Extraction of starting connects line end as a2, and low pressure winding F2 last head is connected in the first outer low pressure winding F1 last head and second；
Low pressure winding F2 extraction of starting connects line end as x2 in second；Low pressure winding T3 extraction of starting connects as a3 in 3rd
Line end, low pressure winding T3 last head and the 4th outer low pressure winding T4 last head are connected in the 3rd；4th outer low pressure winding T4's
Extraction of starting connects line end as x3；3rd outer low pressure winding F3 extraction of starting connects line end as a4, the 3rd outer low pressure around
Low pressure winding F4 last head is connected in group F3 last head and the 4th；Low pressure winding F4 extraction of starting connects as x4 in 4th
Line end；A1 line end, x1 line end, a2 line end, x2 line end, a3 connect line end, the a4 of line end, x3 that connect that connect that connect that connect that connect connects
Line end, x4 connect line end with connection row upper corresponding a1 phases low-voltage terminal, x1 phases low-voltage terminal, a2 phases low-voltage terminal, x2 phases
Low-voltage terminal, a3 phases low-voltage terminal, x3 phases low-voltage terminal, a4 phases low-voltage terminal, the connection of x4 phases low-voltage terminal；A connects line end, B
Connect line end, C connect line end with connection row upper corresponding A phases HV Terminal, B phases HV Terminal, C phases HV Terminal connection；
When the V/X modes of connection are converted to the VV modes of connection, between a1 phases low-voltage terminal and a2 phase low-voltage terminals, x1 phases low-voltage terminal with
Between x2 phase low-voltage terminals, between a3 phases low-voltage terminal and a4 phase low-voltage terminals, x3 phases low-voltage terminal and x4 phases low-voltage terminal it
Between increase wire connection, HV Terminal wiring is constant.
When V/X and Vv wiring general-purpose transformer is used in direct power supply as Vv wiring transformers, by binding post a1,
A2, a3, a4, x1, x2, x3, x4 are fixed in accordingly respectively by connection row according to method as shown in Figure 3 using fastener
Binding post on, formed Vv wiring required for 4 low-voltage wiring terminals d, e, f, g, then d, g or e, f are made respectively
For a pair of ground connection, the connection type needed for direct feeding system is formed.
When V/X and Vv wiring general-purpose transformer is used in AT power supplies as V/X wiring transformers, as shown in figure 3, will even
Run in and removed from binding post a1, a2, a3, a4, x1, x2, x3, x4, then x1, a2 or a1, x2 is respectively as a pair
Ground connection, x3, a4 or a3, x4 forms the connection type needed for AT power supply modes respectively as a pair of ground connection.
For convenience of intersecting wiring, x1 line end line end, x3 the line end line ends that connect with a4 that connect that connect with a2 that connect pass through friendship
Fork lead self-transposition device 7 realizes coordinated transposition.Cross-buss self-transposition device 7, as shown in Figure 4,5, 6, it includes core body
701, open up helical lead wire passage 702 in the wall of core body 701, helical lead wire passage 702 includes the first helical lead wire passage 721 and the
The incoming line of two helical lead wire passages 722, the first helical lead wire passage 721 and the second helical lead wire passage 722 is respectively positioned on core body
The line outlet of 701 one of end face, the first helical lead wire passage 721 and the second helical lead wire passage 722 is respectively positioned on core body
701 another end face, the first helical lead wire passage 721 and the second helical lead wire passage 722 spiral in the same direction in the wall of core body 701
Half cycle, make same helical lead wire passage incoming line and line outlet the both ends of the surface of core body 701 location swap.
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, the circle run through among core body 701 are axially arranged among core body 701
It is provided with " Ⅹ " type keel shoe 703 in post holes, the incoming lines of two helical lead wire passages 702 is located at one of them of core body 701
End face, the line outlet of two helical lead wire passages 702 are located at another end face of core body 701, helical lead wire passage 702 be along
Core body 701 axially in the equidistant synchronous rotary of helical form in the same direction, the distance between remain constant, two helical lead wire passages
Incoming line and line outlet transposition, every the lateral of helical lead wire passage 702 are evenly distributed with 3 along on two passes center line
Small through hole 706, for small through hole 706 perpendicular to the side of core body 701, the diameter of small through hole 706 is straight with two helical lead wire passages 702
Footpath is equal in magnitude, and the position of the end face incoming line of core body 701 and line outlet is provided with the gap 704 more than helical lead wire passage 702,
The inner side of the both ends of the surface of core body 701 is provided with the annular separation 705 higher than end face.
At the product design initial stage, according to the voltage class and capacity of transformer, by determining leader cable 707 after calculating
Specification, it is then determined that the diameter of helical lead wire passage 702 can ensure that leader cable 707 can pass through；According to transformer electricity
Grade is pressed, determines the insulation distance between leader cable 707, finally determines the arc length distance of helical lead wire passage 702, it is ensured that absolutely
Edge distance disclosure satisfy that test requirements document, by transformer arrangement figure, calculate the space at the coordinated transposition of helical lead wire passage 702
Distance, the then length of core body 701 of reasonable selection cross-buss self-transposition device and the peripheral end face height dimension of core body 701.
In assembling process, two leader cables 707 are each passed through helical lead wire passage 702, then drawn along spiral
Line passage 702 is drawn naturally, and the now transposition of two leader cables 707 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 707, the length of taper is controlled, finally by being distributed in cross-buss self-transposition
The conductor grip 708 on device both sides clamps two leader cables 707, and the leader cable 707 is in the fully extended state, from
And cross-buss self-transposition device is set to be also at the state that a relative horizontal position is fixed.
After cross-buss self-transposition device installs, it is ensured that run through among the core body 701 where " Ⅹ " type keel shoe 703
Cylinder hole path is no blocked state, it is ensured that insulating oil can be allowed to flow freely in each small through hole 706, to ensure leader cable
707 heat is taken away in time by oil stream.
Figure 1 above, V/X the and VV wiring general-purpose transformers shown in 2,3,4,5,6 are the specific embodiments of the present invention,
Substantive distinguishing features of the present invention and progress are embodied, under the enlightenment of the present invention, shape can be carried out to it according to the use needs of reality
The equivalent modifications of shape, structure etc., this programme protection domain row.
Claims (9)
1.V/X and VV wiring general-purpose transformers, it is characterised in that：Including two single-phase transformers, for connecting winding connection end
Connection row, two single-phase transformers pass through wiring synthesize a tractive transformer；Two single-phase transformers include core limb and outside around
In the winding of core limb, a core limb is provided with interior low pressure winding, outer low-voltage line group and the high pressure winding being arranged concentrically, described
Connection row is provided with the low-voltage wiring terminal being connected with interior low pressure winding, outer low-voltage line group terminals；When for the V/X modes of connection when,
Interior low pressure winding is connected with the outer low pressure winding on another core limb of same single-phase transformer on one core limb, a single-phase transformation
Device forms the low pressure winding of two series connection, the high pressure windings in series of same single-phase transformer；Connect when the V/X modes of connection are converted to VV
During line mode, annexation of the adjustment low pressure winding terminals on connection row, it will be connect with the low pressure winding in same iron core column
The connected low-voltage wiring terminal connection of line end, make two low pressure windings connected of same single-phase transformer in parallel；High pressure winding
Wiring keeps constant；X1 connect line end connect with a2 line end, x3 connect line end connect with a4 line end by cross-buss from changing
Position device realizes coordinated transposition, and described cross-buss self-transposition device includes core body（701）, described core body（701）In wall
Open up helical lead wire passage（702）, described helical lead wire passage（702）Including the first helical lead wire passage（721）With second
Helical lead wire passage（722）, the first helical lead wire passage（721）With the second helical lead wire passage（722）Incoming line be respectively positioned on
Core body（701）One of end face, the first helical lead wire passage（721）With the second helical lead wire passage（722）Line outlet
It is respectively positioned on core body（701）Another end face, the first helical lead wire passage（721）With the second helical lead wire passage（722）In core
Body（701）Spiral half cycle in the same direction in wall, make same helical lead wire passage incoming line and line outlet in core body（701）Both ends of the surface
Location swap.
2. V/X and VV wiring general-purpose transformer according to claim 1, it is characterised in that：Iron core is to be rolled by silicon steel sheet
The circular section single frame closing structure formed, the unshakable in one's determination of single frame closing structure form two core limbs and upper and lower iron yoke；One single-phase
Transformer sets the iron core of a single frame closing structure.
3. V/X and VV wiring general-purpose transformer according to claim 1, it is characterised in that：By the iron of single frame closing structure
Two core limbs and the sectional area of upper and lower iron yoke and the appearance and size in section that the heart is formed are equal.
4. the V/X and VV wiring general-purpose transformers according to claim 1 or 2 or 3, it is characterised in that：Two single-phase transformers
Respectively the first single-phase transformer, the second single-phase transformer, the first single-phase transformer, the second single-phase transformer are located at same case
Body；First single-phase transformer includes the first core limb（1）, the second core limb（2）, be around in the first core limb outside（1）First in
Low pressure winding（T1）, outer be with one heart around in low pressure winding in first（T1）The first outer low pressure winding（F1）, outer be with one heart around in first
Outer low pressure winding（F1）The first high pressure winding（H1）, be around in the second core limb outside（2）Second in low pressure winding（F2）, with one heart
It is around in low pressure winding in second outside（F2）The second outer low pressure winding（T2）, outer be with one heart around in the second outer low pressure winding（T2）
Two high pressure windings（H2）；Second single-phase transformer includes third core post（3）, four-limbed post（4）, be around in third core post outside
（3）The 3rd in low pressure winding（T3）, outer be with one heart around in low pressure winding in the 3rd（T3）The 3rd outer low pressure winding（F3）, with one heart
It is around in the 3rd outer low pressure winding outside（F3）The 3rd high pressure winding（H3）, be around in four-limbed post outside（4）The 4th in low pressure around
Group（F4）, outer be with one heart around in low pressure winding in the 4th（F4）The 4th outer low pressure winding（T4）, outer be with one heart around in the 4th outer low pressure
Winding（T4）The 4th high pressure winding（H4）；Low pressure winding in first（T1）With the second outer low pressure winding（T2）Series connection；Outside first
Low pressure winding（F1）With second in low pressure winding（F2）Series connection；First high pressure winding（H1）, the second high pressure winding（H2）Series connection；The
Low pressure winding in three（T3）With the 4th outer low pressure winding（T4）Series connection；3rd outer low pressure winding（F3）With the 4th in low pressure winding
（F4）Series connection；3rd high pressure winding（H3）, the 4th high pressure winding（H4）Series connection.
5. V/X and VV wiring general-purpose transformer according to claim 4, 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（H1）Start
Draw and connect line end as A；First high pressure winding（H1）Last head and the second high pressure winding（H2）Last head be connected, the second high pressure
Winding（H2）Start and the 3rd high pressure winding（H3）Extraction of starting connect line end as B, the 3rd high pressure winding（H3）End
Head and the 4th high pressure winding（H4）Last head be connected, the 4th high pressure winding（H4）Extraction of starting connect line end as C；In first
Low pressure winding（T1）Extraction of starting connect line end as a1, low pressure winding in first（T1）Last head and the second outer low pressure winding
（T2）Last head be connected；Second outer low pressure winding（T2）Extraction of starting connect line end as x1；First outer low pressure winding
（F1）Extraction of starting connect line end as a2, the first outer low pressure winding（F1）Last head and second in low pressure winding（F2）End
Head is connected；Low pressure winding in second（F2）Extraction of starting connect line end as x2；Low pressure winding in 3rd（T3）Start
Draw and connect line end as a3, low pressure winding in the 3rd（T3）Last head and the 4th outer low pressure winding（T4）Last head be connected；
4th outer low pressure winding（T4）Extraction of starting connect line end as x3；3rd outer low pressure winding（F3）Start extraction be used as a4
Connect line end, the 3rd outer low pressure winding（F3）Last head and the 4th in low pressure winding（F4）Last head be connected；Low pressure in 4th
Winding（F4）Extraction of starting connect line end as x4；A1 connect line end, x1 connect line end, a2 connect line end, x2 connect line end,
A3 connect line end, x3 connect line end, a4 connect line end, x4 connect line end with connection row upper corresponding a1 phases low-voltage terminal, x1
Phase low-voltage terminal, a2 phases low-voltage terminal, x2 phases low-voltage terminal, a3 phases low-voltage terminal, x3 phases low-voltage terminal, a4 phases low-voltage terminal,
X4 phases low-voltage terminal connects；A connect line end, B connect line end, C connect line end with connection row upper corresponding A phases HV Terminal, B
Phase HV Terminal, the connection of C phases HV Terminal；When the V/X modes of connection are converted to the VV modes of connection, a1 phases low-voltage terminal and a2 phases
Between low-voltage terminal, between x1 phases low-voltage terminal and x2 phase low-voltage terminals, between a3 phases low-voltage terminal and a4 phase low-voltage terminals, x3
Increase wire connection between phase low-voltage terminal and x4 phase low-voltage terminals, HV Terminal wiring is constant.
6. V/X and VV wiring general-purpose transformer according to claim 5, it is characterised in that：The x1 line ends that connect connect with a2
Coordinated transposition between line end, a1 line end, x1 connect line end, the x2 of line end, a2 that connect that connect is set to connect line end by along being arranged in order；x3
The line end that connects connects coordinated transposition between line end with a4, a3 connect line end, the a4 of line end, x3 that connect is connected line end, x4 phase connections
End is arranged in order as suitable.
7. V/X and VV wiring general-purpose transformer according to claim 1, it is characterised in that：Described core body（701）It is middle
It is axially arranged with the cylindrical hole run through, described core body（701）" Ⅹ " type keel shoe is provided with the cylindrical hole that centre is run through
（703）.
8. V/X and VV wiring general-purpose transformer according to claim 1, it is characterised in that：First helical lead wire passage
（721）With the second helical lead wire passage（722）Along core body（701）It is in axially the equidistant synchronous rotary of helical form in the same direction, and between
Distance remain constant.
9. V/X and VV wiring general-purpose transformer according to claim 1, it is characterised in that：Core body is provided with multiple radial directions
Small through hole（706）, described small through hole and helical lead wire passage（702）Communicate；Described small through hole（706）Diameter be more than
Or equal to helical lead wire passage（702）Diameter.
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| CN106504866B (en) * | 2016-12-19 | 2018-06-26 | 华城电机（武汉）有限公司 | Amorphous alloy transformer winding construction |
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| 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 |
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| CN105702440A (en) | 2016-06-22 |
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Effective date of registration: 20190423 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: Universal Transformers for V/X and VV Wiring Effective date of registration: 20231127 Granted publication date: 20180119 Pledgee: Ningxia East Guarantee Co.,Ltd. Pledgor: WOLONG ELECTRIC YINCHUAN TRANSFORMER Co.,Ltd. Registration number: Y2023640000044 |