CN205508607U - VX and VV wiring general -purpose transformer - Google Patents
VX and VV wiring general -purpose transformer Download PDFInfo
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- CN205508607U CN205508607U CN201521119200.5U CN201521119200U CN205508607U CN 205508607 U CN205508607 U CN 205508607U CN 201521119200 U CN201521119200 U CN 201521119200U CN 205508607 U CN205508607 U CN 205508607U
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Abstract
VX and VV wiring general -purpose transformer relates to a transformer. At present, when the power supply mode of transformer need be changed, need replace the transformer, it is with high costs. The utility model discloses a two single phase transformer, be used for connecting the run -on of winding wiring end, two single phase transformer are through the synthetic traction transformer of wiring, and two single phase transformer all include the core limb and be equipped with the interior low voltage winding of concentric setting, outer low pressure group and high voltage winding on the core limb around the winding in the core limb outward, the run -on be equipped with the low pressure binding post who links to each other with interior low voltage winding, outer low -voltage line montage line terminal, when being the VX mode of connection, the outer low voltage winding in on the core limb on another core limb of low voltage winding and same single phase transformer establishes ties, and a single phase transformer forms the low voltage winding group of two series connection, and same single phase transformer's high voltage winding establishes ties. The utility model discloses realize the exchange of two kinds of transformers and general, reduce the waste of existing resource.
Description
Technical field
This utility model relates to a kind of transformator, especially V/X and VV wiring general-purpose transformer.
Background technology
At present, the power supply of China's high-speed electric railway uses AT power supply mode and the mode of direct-furnish, and AT powers and generally selects V/X Connection Traction Transformer, and directly Vv Connection Traction Transformer is generally selected in power supply.The selection of the power supply mode of whole Traction networks and select the connection type of which kind of tractive transformer, directly determines power supply quality and the power supply effect of tractive power supply system.When the power supply mode of transformator needs change, needing to substitute transformator, cost is high.
Utility model content
The technical assignment of the technical problems to be solved in the utility model and proposition is to carry out prior art improving and improving, V/X and VV wiring general-purpose transformer is provided, to reach interchangeability and the versatility of two kinds of transformators, reduce the waste of existing resource, strengthen the linking between existing AT power supply mode and direct-furnish mode, it is ensured that the purpose of the suitability between the two simultaneously.To this end, this utility model takes techniques below scheme.
V/X and VV wiring general-purpose transformer includes two single-phase transformers, for connecting the connection row of winding connection end, two single-phase transformers synthesize a tractive transformer by wiring, two single-phase transformers all include core limb and are around in outward the winding of core limb, one core limb is provided with the interior low pressure winding being arranged concentrically, outer low-voltage line group and high pressure winding, and the described row that connects 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 mode of connection, interior low pressure winding and the outer low pressure windings in series on another core limb of same single-phase transformer on a core limb, 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；When the V/X mode of connection is converted to the VV mode of connection, adjust low pressure winding connection end in the annexation connected on row, the low-voltage wiring terminal being connected with the low pressure winding connection end in same iron core column is connected, makes two of the same single-phase transformer low pressure winding groups connected in parallel；High pressure winding connection keeps constant.Reach interchangeability and the versatility of two kinds of transformators, reduce the waste of existing resource, strengthen the linking between existing AT power supply mode and direct-furnish mode, it is ensured that the suitability between the two simultaneously.
As improving further and supplementing technique scheme, this utility model also includes following additional technical feature.
Circular section single frame closing structure for being rolled by stalloy unshakable in one's determination, the unshakable in one's determination of single frame closing structure constitutes two core limbs 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 uses rewinding material version, and stalloy consumption can be made to be obviously reduced, and open circuit loss reduces about 30%, and no-load current and transformer noise are obviously reduced, and is conducive to reducing overall volume, saves material.
Two core limbs being made up of the iron core of single frame closing structure and the overall dimensions in the sectional area of upper and lower iron yoke and cross section are the most equal.Directly just can be easy to process by coiling, simple in construction.
Two single-phase transformers are respectively the first single-phase transformer, the second single-phase transformer, and same casing is located at by the first single-phase transformer, the second single-phase transformer；First single-phase transformer include the first core limb, the second core limb, outward be around in low pressure winding in the first of the first core limb, with one heart outer be around in the first of low pressure winding the outer low pressure winding in first, outer be around in the first outer low pressure winding the first high pressure winding, outward be around in low pressure winding in the second of the second core limb, outer be around in the second of low pressure winding the outer low pressure winding in second, concentric outside be around in the second high pressure winding of the second outer low pressure winding；Second single-phase transformer include third core post, four-limbed post, outward be around in low pressure winding in the 3rd of third core post the, with one heart outer be around in the 3rd of low pressure winding the outer low pressure winding in the 3rd, outer be around in the 3rd outer low pressure winding the 3rd high pressure winding, outward be around in low pressure winding in the 4th of four-limbed post the, outer be around in the 4th of low pressure winding the outer low pressure winding in the 4th, concentric outside be around in the 4th high pressure winding of the 4th outer low pressure winding；Low pressure winding and the second outer low pressure windings in series in first；Low pressure windings in series in first outer low pressure winding and second；First high pressure winding, the second high pressure windings in series；Low pressure winding and the 4th outer low pressure windings in series in 3rd；Low pressure windings in series in 3rd outer low pressure winding and the 4th；3rd high pressure winding, the 4th high pressure windings in series.
The first described single-phase transformer is AB phase transformer, and the second described single-phase transformer is BC phase transformer；The extraction of starting of the first high pressure winding connects line end as A；The last head of the first high pressure winding and the last head of the second high pressure winding are connected, the extraction of starting with the 3rd high pressure winding of starting of the second high pressure winding connects line end as B, the last head of the 3rd high pressure winding and the last head of the 4th high pressure winding are connected, and the extraction of starting of the 4th high pressure winding connects line end as C；In first, the extraction of starting of low pressure winding connects line end as a1, and in first, the last head of low pressure winding and the last head of the second outer low pressure winding are connected；The extraction of starting of the second outer low pressure winding connects line end as X1；The extraction of starting of the first outer low pressure winding connects line end as a2, and in the last head and second of the first outer low pressure winding, the last head of low pressure winding is connected；In second, the extraction of starting of low pressure winding connects line end as x2；In 3rd, the extraction of starting of low pressure winding connects line end as a3, and in the 3rd, the last head of low pressure winding and the last head of the 4th outer low pressure winding are connected；The extraction of starting of the 4th outer low pressure winding connects line end as x3；The extraction of starting of the 3rd outer low pressure winding connects line end as a4, and in the last head and the 4th of the 3rd outer low pressure winding, the last head of low pressure winding is connected；In 4th, the extraction of starting of low pressure winding connects line end as x4；A1 line end, x1 line end, a2 line end, x2 line end, a3 line end, x3 connect upper corresponding a1 phase low-voltage terminal that line end, x4 connect line end and connect row, x1 phase low-voltage terminal, a2 phase low-voltage terminal, x2 phase low-voltage terminal, a3 phase low-voltage terminal, x3 phase low-voltage terminal, a4 phase low-voltage terminal, the x4 phase low-voltage terminal of line end, a4 that connect that connect that connect that connect that connect that connect connects；A connect upper corresponding A phase HV Terminal that line end, C connect line end and connect row, B phase HV Terminal, the C phase HV Terminal of line end, B that connect connects；When the V/X mode of connection is converted to the VV mode of connection, between a1 phase low-voltage terminal with a2 phase low-voltage terminal, between x1 phase low-voltage terminal and x2 phase low-voltage terminal, between a3 phase low-voltage terminal and a4 phase low-voltage terminal, all increasing wire be connected between x3 phase low-voltage terminal and x4 phase low-voltage terminal, HV Terminal wiring is constant.
The x1 line end that connects connects with a2 line end, the x3 line end line end that connects with a4 that connects all realizes coordinated transposition by cross-buss self-transposition device, described cross-buss self-transposition device includes core body, helical lead wire passage offered by described core body wall, described helical lead wire passage includes the first helical lead wire passage and the second helical lead wire passage, the incoming line of the first helical lead wire passage and the second helical lead wire passage is respectively positioned on one of them 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 another end face of core body, first helical lead wire passage and the second helical lead wire passage spiral half cycle in the same direction in core body wall, make the incoming line of same helical lead wire passage and line outlet at the location swap of core body both ends of the surface.Replaced by the symmetrical chiasma of incoming line and line outlet and realize lead-in wire intersection automatic position-changing.
It is axially arranged with the cylindrical hole run through in the middle of described core body, the cylindrical hole run through in the middle of described core body is provided with " Ⅹ " type keel shoe.Through hole in the middle of core body is easy to insulating oil oil flow heat dissipation；" Ⅹ " type keel shoe is used to support, it is possible to allow core body be internally formed multiple oil and paper web is constituted the insulation barrier of big oil duct ground paper cylinder, fully ensured that the insulating properties between cross-buss.
First helical lead wire passage and the first helical lead wire passage along core body axially in the equidistant synchronous rotary of helical form in the same direction, and between distance remain constant.Helical lead wire passage along core body axially in the equidistant synchronous rotary of helical form in the same direction, between distance remain constant.The coordinated transposition of beeline can be realized by the way of the equidistant synchronous rotary of helical form in the same direction.
Core body is provided with the small through hole of multiple radial direction, and described small through hole communicates with helical lead wire passage；The diameter of described small through hole is more than or equal to the diameter of helical lead wire passage.Article two, the lateral of helical lead wire passage is evenly distributed with multiple small through hole on two passes centrage, small through hole is perpendicular to core body side, the diameter of through hole is more than or equal to the diameter of helical lead wire passage, insulating oil can be facilitated to enter lead channels, electric current is had to pass through adstante febre at lead-in wire, take away heat by oil stream, play the effect of heat radiation.
Beneficial effect: (1) uses box structure altogether so that single volume is much smaller than two single-phase volume sums；(2) transformer connection form is changed by external connection, more quickly with convenient；(3) this transfer principle is utilized, it is possible to make full use of the spare transformer in lifetime and transformator that house of correction replaces, saved resource；(4) it is simultaneously suitable for 110kV or 220kV level V/X wiring and Vv Connection Traction Transformer, decreases the investment cost of later stage electric substation's upgrading.
Accompanying drawing explanation
Fig. 1 is Vv connection principle schematic diagram of the present utility model.
Fig. 2 is V/X connection principle schematic diagram of the present utility model.
Fig. 3 is external cabling schematic diagram of the present utility model.
Fig. 4 is the assembling schematic diagram of cross-buss self-transposition device of the present utility model.
Fig. 5 is cross-buss self-transposition device side of the present utility model perspective structure schematic diagram.
Fig. 6 is cross-buss self-transposition device plan structure schematic diagram of the present utility model.
In figure: 1 first core limb；2 second core limbs；3 third core posts；4 four-limbed posts；5 AB phase transformer；6 BC phase transformer；H1 the first high pressure winding；Low pressure winding in T1 first；F1 first outer low pressure winding；H2 the second high pressure winding；Low pressure winding in F2 second；T2 second outer low pressure winding；H3 the 3rd high pressure winding；Low pressure winding in T3 the 3rd；The outer low pressure winding of F3 the 3rd；H4 the 4th high pressure winding；Low pressure winding in F4 the 4th；The outer low pressure winding of T4 the 4th；A, B, C high-pressure side input；A1, a2, x1, x2, a3, a4, x3, x4 low pressure winding connection end；7-cross-buss self-transposition device；701-core body；702-helical lead wire passage；721-the first helical lead wire passage；722-the second helical lead wire passage；703-" Ⅹ " type keel shoe；704-gap；705-annular separation；706-small through hole；707-goes between；708-wire presss from both sides.H1-the first high pressure winding；H2-the second high pressure winding；H3-the 3rd high pressure winding；H4-the 4th high pressure winding；L1-the first low pressure winding；L2-the second low pressure winding；L3-the 3rd low pressure winding；L4-the 4th low pressure winding；D, e, f, g low pressure winding connection end.
Detailed description of the invention
Below in conjunction with Figure of description, the technical solution of the utility model is described in further detail.
As shown in Figure 1, in Vv elementary diagram, including first core limb the 1, second core limb 2, third core post 3, four-limbed post 4 and the first high pressure winding H1 being wound in one heart on rewinding material post, the first low pressure winding L1, the second high pressure winding H2, the second low pressure winding L2, the 3rd high pressure winding H3, the 3rd low pressure winding L3, the 4th high pressure winding H3, the 4th low pressure winding L4, thus constitute AB phase transformer 5 first single-phase transformer and BC phase transformer 6 second two single-phase transformers of single-phase transformer.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 all as the low pressure winding of Vv Connection Traction Transformer rotating around being formed on first core limb the 1, second core limb 2, third core post 3, four-limbed post 4, the first high pressure winding H1, the second high pressure winding H2, the 3rd high pressure winding H3, the 4th high pressure winding H4 the most all high voltage winding groups as Vv Connection Traction Transformer are wound on the first low pressure winding L1, the second low pressure winding L2, the 3rd low pressure winding L3, the 4th low pressure winding L4 respectively.
As in figure 2 it is shown, in V/X elementary diagram, low pressure winding L1, L2, L3, L4 in V/v elementary diagram respectively become two parts, i.e. L1 is divided into F1 and T1；L2 is divided into F2 and T2；L3 is divided into F3 and T3；L4 is divided into F4 and T4, and meanwhile, low voltage terminal is also become 8 by original 4, is respectively as follows: a1, a2, a3, a4, x1, x2, x3, x4 terminals.Concrete structure is: the technical program includes that same casing is located at by the first single-phase transformer, the second single-phase transformer, the first single-phase transformer, the second single-phase transformer；First single-phase transformer include first core limb the 1, second core limb 2, outward be around in low pressure winding T1 in the first of the first core limb 1, with one heart outer be around in the first of low pressure winding T1 the outer low pressure winding F1 in first, outer be around in the first outer low pressure winding F1 the first high pressure winding H1, outward be around in low pressure winding F2 in the second of the second core limb 2, outer be around in the second of low pressure winding F2 the outer low pressure winding T2 in second, concentric outside be around in the second high pressure winding H2 of the second outer low pressure winding T2；Second single-phase transformer include third core post 3, four-limbed post 4, outward be around in low pressure winding T3 in the 3rd of third core post 3 the, with one heart outer be around in the 3rd of low pressure winding T3 the outer low pressure winding F3 in the 3rd, outer be around in the 3rd outer low pressure winding F3 the 3rd high pressure winding H3, outward be around in low pressure winding F4 in the 4th of four-limbed post 4 the, outer be around in the 4th of low pressure winding F4 the outer low pressure winding T4 in the 4th, concentric outside be around in the 4th high pressure winding H4 of the 4th outer low pressure winding T4；Low pressure winding T1 and the second outer low pressure winding T2 series connection in first；Low pressure winding F2 series connection in first outer low pressure winding F1 and second；First high pressure winding H1, the second high pressure winding H2 series connection；Low pressure winding T3 and the 4th outer low pressure winding T4 series connection in 3rd；Low pressure winding F4 series connection in 3rd outer low pressure winding F3 and the 4th；3rd high pressure winding H3, the 4th high pressure winding H4 series connection.
The first described single-phase transformer is AB phase transformer 5, and the second described single-phase transformer is BC phase transformer 6；The extraction of starting of the first high pressure winding H1 connects line end as A；The last head of the first high pressure winding H1 and the last head of the second high pressure winding H2 are connected, the extraction of starting with the 3rd high pressure winding H3 of starting of the second high pressure winding H2 connects line end as B, the last head of the 3rd high pressure winding H3 and the last head of the 4th high pressure winding H4 are connected, and the extraction of starting of the 4th high pressure winding H4 connects line end as C；In first, the extraction of starting of low pressure winding T1 connects line end as a1, and in first, the last head of low pressure winding T1 and the last head of the second outer low pressure winding T2 are connected；The extraction of starting of the second outer low pressure winding T2 connects line end as X1；The extraction of starting of the first outer low pressure winding F1 connects line end as a2, and in the last head and second of the first outer low pressure winding F1, the last head of low pressure winding F2 is connected；In second, the extraction of starting of low pressure winding F2 connects line end as x2；In 3rd, the extraction of starting of low pressure winding T3 connects line end as a3, and in the 3rd, the last head of low pressure winding T3 and the last head of the 4th outer low pressure winding T4 are connected；The extraction of starting of the 4th outer low pressure winding T4 connects line end as x3；The extraction of starting of the 3rd outer low pressure winding F3 connects line end as a4, and in the last head and the 4th of the 3rd outer low pressure winding F3, the last head of low pressure winding F4 is connected；In 4th, the extraction of starting of low pressure winding F4 connects line end as x4；A1 line end, x1 line end, a2 line end, x2 line end, a3 line end, x3 connect upper corresponding a1 phase low-voltage terminal that line end, x4 connect line end and connect row, x1 phase low-voltage terminal, a2 phase low-voltage terminal, x2 phase low-voltage terminal, a3 phase low-voltage terminal, x3 phase low-voltage terminal, a4 phase low-voltage terminal, the x4 phase low-voltage terminal of line end, a4 that connect that connect that connect that connect that connect that connect connects；A connect upper corresponding A phase HV Terminal that line end, C connect line end and connect row, B phase HV Terminal, the C phase HV Terminal of line end, B that connect connects；When the V/X mode of connection is converted to the VV mode of connection, between a1 phase low-voltage terminal with a2 phase low-voltage terminal, between x1 phase low-voltage terminal and x2 phase low-voltage terminal, between a3 phase low-voltage terminal and a4 phase low-voltage terminal, all increasing wire be connected between x3 phase low-voltage terminal and x4 phase low-voltage terminal, HV Terminal wiring is constant.
When V/X and Vv wiring general-purpose transformer is used in as Vv wiring transformer and directly to power, by binding post a1, a2, a3, a4, x1, x2, x3, x4 respectively by connecting row according to method as shown in Figure 3, securing member is utilized to be fixed on corresponding binding post, form 4 low-voltage wiring terminals d, e, f, g required for Vv wiring, then d, g or e, f, respectively as a pair ground connection, form the connection type needed for direct feeding system.
When V/X and Vv wiring general-purpose transformer as V/X wiring transformer be used in AT power time, as shown in Figure 3, connection row is 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, respectively as a pair ground connection, form the connection type needed for AT power supply mode.
Intersecting wiring for convenience, x1 line end line end, the x3 line end line end that connects with a4 that connects that connects with a2 that connects all realizes coordinated transposition by cross-buss self-transposition device 7.Cross-buss self-transposition device 7, such as Fig. 4, 5, shown in 6, it includes core body 701, helical lead wire passage 702 offered by core body 701 wall, helical lead wire passage 702 includes the first helical lead wire passage 721 and the second helical lead wire passage 722, the incoming line of the first helical lead wire passage 721 and the second helical lead wire passage 722 is respectively positioned on one of them end face of core body 701, the line outlet of the first helical lead wire passage 721 and the second helical lead wire passage 722 is respectively positioned on another end face of core body 701, first helical lead wire passage 721 and the second helical lead wire passage 722 spiral half cycle in the same direction in core body 701 wall, make the incoming line of same helical lead wire passage and line outlet at the location swap of core body 701 both ends of the surface.
nullRealization lead-in wire intersection automatic position-changing for convenience，And it is easy to heat radiation，Prevent the electric discharge between lead-in wire，Preferably ensure the safe and stable operation of transformator，It is axially arranged with, in the middle of core body 701, the cylindrical hole run through，The cylindrical hole run through in the middle of core body 701 is provided with " Ⅹ " type keel shoe 703，Article two, the incoming line of helical lead wire passage 702 is positioned at one of them end face of core body 701，Article two, the line outlet of helical lead wire passage 702 is positioned at another end face of core body 701，Helical lead wire passage 702 is axial in the equidistant synchronous rotary of helical form in the same direction along core body 701，Between distance remain constant，Article two, helical lead wire passage incoming line and line outlet transposition，The lateral of every helical lead wire passage 702 is evenly distributed with 3 small through hole 706 on two passes centrage，Small through hole 706 is perpendicular to core body 701 side，The diameter of the diameter of small through hole 706 and two helical lead wire passages 702 is equal，The position of core body 701 end face incoming line 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 electric pressure and the capacity of transformator, by determining the specification of leader cable 707 after calculating, it is then determined that helical lead wire passage 702 diameter ensure that leader cable 707 can pass through；According to transformer voltage grade, determine the insulation distance between leader cable 707, finally determine the arc length distance of helical lead wire passage 702, guarantee that insulation distance disclosure satisfy that test requirements document, by transformer arrangement figure, calculate the space length at helical lead wire passage 702 coordinated transposition, then core body 701 length of reasonable selection cross-buss self-transposition device and the peripheral end face height dimension of core body 701.
During assembling, two leader cables 707 being each passed through helical lead wire passage 702, then naturally draws along helical lead wire passage 702, the now transposition of two leader cables 707 completes in inside.
According to transformer voltage grade and insulation distance, determine the wire insulation thickness beyond cross-buss self-transposition device, import and export position at leader cable 707, the length of taper to be controlled well, press from both sides 708 finally by the wire being distributed in cross-buss self-transposition device both sides and clamp two leader cables 707, and make leader cable 707 be in the fully extended state, so that cross-buss self-transposition device is also at the state that a relative horizontal position is fixing.
After cross-buss self-transposition device installs, guarantee that running through cylindrical hole passage in the middle of the core body 701 at " Ⅹ " type keel shoe 703 place is without blocked state, insulating oil can be allowed to flow freely in guaranteeing each small through hole 706, take away in time ensureing that the heat of leader cable 707 is flowed by oil.
Figure 1 above, V/X and the VV wiring general-purpose transformer shown in 2,3,4,5,6 are specific embodiment of the utility model; this utility model substantive distinguishing features and progress are embodied; can be according to actual use needs; under enlightenment of the present utility model; it is carried out the equivalent modifications of the aspect such as shape, structure, all at the row of protection domain of this programme.
Claims (10)
1.V/X and VV wiring general-purpose transformer, it is characterised in that: include two single-phase transformers, for connect winding connection end connection arrange, two single-phase transformers synthesize a tractive transformer by wiring；Two single-phase transformers all include core limb and are around in outward the winding of core limb, one core limb is provided with the interior low pressure winding being arranged concentrically, outer low-voltage line group and high pressure winding, and the described row that connects 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 mode of connection, interior low pressure winding and the outer low pressure windings in series on another core limb of same single-phase transformer on a core limb, 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；When the V/X mode of connection is converted to the VV mode of connection, adjust low pressure winding connection end in the annexation connected on row, the low-voltage wiring terminal being connected with the low pressure winding connection end in same iron core column is connected, makes two of the same single-phase transformer low pressure winding groups connected in parallel；High pressure winding connection keeps constant.
V/X and VV wiring general-purpose transformer the most according to claim 1, it is characterised in that: the circular section single frame closing structure for being rolled by stalloy unshakable in one's determination, the unshakable in one's determination of single frame closing structure constitutes two core limbs and upper and lower iron yoke；One single-phase transformer sets the iron core of a single frame closing structure.
V/X and VV wiring general-purpose transformer the most according to claim 1, it is characterised in that: two core limbs being made up of the iron core of single frame closing structure and the overall dimensions in the sectional area of upper and lower iron yoke and cross section are the most equal.
4. according to V/X and the VV wiring general-purpose transformer described in claim 1 or 2 or 3, it is characterised in that: two single-phase transformers are respectively the first single-phase transformer, the second single-phase transformer, and same casing is located at by the first single-phase transformer, the second single-phase transformer；First single-phase transformer includes the first core limb (1), second core limb (2), it is around in outward low pressure winding (T1) in the first of the first core limb (1), it is around in the first of low pressure winding (T1) the outer low pressure winding (F1) in first outside with one heart, outer the first high pressure winding (H1) being around in the first outer low pressure winding (F1), it is around in outward low pressure winding (F2) in the second of the second core limb (2), it is around in the second of low pressure winding (F2) the outer low pressure winding (T2) in second outside with one heart, outer the second high pressure winding (H2) being around in the second outer low pressure winding (T2)；Second single-phase transformer includes third core post (3), four-limbed post (4), it is around in outward low pressure winding (T3) in the 3rd of third core post (3), it is around in the 3rd of low pressure winding (T3) the outer low pressure winding (F3) in the 3rd outside with one heart, outer the 3rd high pressure winding (H3) being around in the 3rd outer low pressure winding (F3), it is around in outward low pressure winding (F4) in the 4th of four-limbed post (4), it is around in the 4th of low pressure winding (F4) the outer low pressure winding (T4) in the 4th outside with one heart, outer the 4th high pressure winding (H4) being around in the 4th outer low pressure winding (T4)；In first, low pressure winding (T1) is connected with the second outer low pressure winding (T2)；First outer low pressure winding (F1) is connected with low pressure winding (F2) in second；First high pressure winding (H1), the second high pressure winding (H2) series connection；In 3rd, low pressure winding (T3) is connected with the 4th outer low pressure winding (T4)；3rd outer low pressure winding (F3) is connected with low pressure winding (F4) in the 4th；3rd high pressure winding (H3), the 4th high pressure winding (H4) series connection.
V/X and VV wiring general-purpose transformer the most according to claim 4, it is characterised in that: the first described single-phase transformer is AB phase transformer (5), and the second described single-phase transformer is BC phase transformer (6)；The extraction of starting of the first high pressure winding (H1) connects line end as A；The last head of the first high pressure winding (H1) and the last head of the second high pressure winding (H2) are connected, the extraction of starting with the 3rd high pressure winding (H3) of starting of the second high pressure winding (H2) connects line end as B, the last head of the 3rd high pressure winding (H3) and the last head of the 4th high pressure winding (H4) are connected, and the extraction of starting of the 4th high pressure winding (H4) connects line end as C；In first, the extraction of starting of low pressure winding (T1) connects line end as a1, and in first, the last head of low pressure winding (T1) and the last head of the second outer low pressure winding (T2) are connected；The extraction of starting of the second outer low pressure winding (T2) connects line end as X1；The extraction of starting of the first outer low pressure winding (F1) connects line end as a2, and in the last head and second of the first outer low pressure winding (F1), the last head of low pressure winding (F2) is connected；In second, the extraction of starting of low pressure winding (F2) connects line end as x2；In 3rd, the extraction of starting of low pressure winding (T3) connects line end as a3, and in the 3rd, the last head of low pressure winding (T3) and the last head of the 4th outer low pressure winding (T4) are connected；The extraction of starting of the 4th outer low pressure winding (T4) connects line end as x3；The extraction of starting of the 3rd outer low pressure winding (F3) connects line end as a4, and in the last head and the 4th of the 3rd outer low pressure winding (F3), the last head of low pressure winding (F4) is connected；In 4th, the extraction of starting of low pressure winding (F4) connects line end as x4；A1 line end, x1 line end, a2 line end, x2 line end, a3 line end, x3 connect upper corresponding a1 phase low-voltage terminal that line end, x4 connect line end and connect row, x1 phase low-voltage terminal, a2 phase low-voltage terminal, x2 phase low-voltage terminal, a3 phase low-voltage terminal, x3 phase low-voltage terminal, a4 phase low-voltage terminal, the x4 phase low-voltage terminal of line end, a4 that connect that connect that connect that connect that connect that connect connects；A connect upper corresponding A phase HV Terminal that line end, C connect line end and connect row, B phase HV Terminal, the C phase HV Terminal of line end, B that connect connects；When the V/X mode of connection is converted to the VV mode of connection, between a1 phase low-voltage terminal with a2 phase low-voltage terminal, between x1 phase low-voltage terminal and x2 phase low-voltage terminal, between a3 phase low-voltage terminal and a4 phase low-voltage terminal, all increasing wire be connected between x3 phase low-voltage terminal and x4 phase low-voltage terminal, HV Terminal wiring is constant.
V/X and VV wiring general-purpose transformer the most according to claim 5, it is characterised in that: the x1 line end that connects connects with a2 coordinated transposition between line end, makes a1 line end, x1 connect line end, the x2 of line end, a2 that connect that connect connect line end by along being arranged in order；The x3 line end that connects connects with a4 coordinated transposition between line end, makes a3 line end, x3 connect line end, the x4 of line end, a4 that connect that connect connect line end by along being arranged in order.
nullV/X and VV wiring general-purpose transformer the most according to claim 6，It is characterized in that: the x1 line end that connects connects with a2 line end、The x3 line end line end that connects with a4 that connects all realizes coordinated transposition by cross-buss self-transposition device，Described cross-buss self-transposition device includes core body (701)，Helical lead wire passage (702) offered by described core body (701) wall，Described helical lead wire passage (703) includes the first helical lead wire passage (721) and the second helical lead wire passage (722)，The incoming line of the first helical lead wire passage (721) and the second helical lead wire passage (722) is respectively positioned on one of them end face of core body (701)，The line outlet of the first helical lead wire passage (721) and the second helical lead wire passage (722) is respectively positioned on another end face of core body (701)，First helical lead wire passage (721) and the second helical lead wire passage (722) spiral half cycle in the same direction in core body (701) wall，Make the incoming line of same helical lead wire passage and line outlet at the location swap of core body (701) both ends of the surface.
V/X and VV wiring general-purpose transformer the most according to claim 7, it is characterized in that: be axially arranged with the cylindrical hole run through in the middle of described core body (701), the cylindrical hole run through in the middle of described core body (701) is provided with " Ⅹ " type keel shoe (703).
V/X and VV wiring general-purpose transformer the most according to claim 7, it is characterized in that: the first helical lead wire passage (721) and the first helical lead wire passage (722) along core body (701) axially in the equidistant synchronous rotary of helical form in the same direction, and between distance remain constant.
V/X and VV wiring general-purpose transformer the most according to claim 7, it is characterised in that: core body is provided with the small through hole (706) of multiple radial direction, and described small through hole communicates with helical lead wire passage (702)；The diameter of described small through hole (706) is more than or equal to the diameter of helical lead wire passage (702).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521119200.5U CN205508607U (en) | 2015-12-30 | 2015-12-30 | VX and VV wiring general -purpose transformer |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521119200.5U CN205508607U (en) | 2015-12-30 | 2015-12-30 | VX and VV wiring general -purpose transformer |
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| CN205508607U true CN205508607U (en) | 2016-08-24 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105702440A (en) * | 2015-12-30 | 2016-06-22 | 卧龙电气集团股份有限公司 | General transformer for V/X and VV connection |
| CN109326409A (en) * | 2018-10-22 | 2019-02-12 | 浙江优力仕机电科技股份有限公司 | A kind of conducting wire self-transposition device |
-
2015
- 2015-12-30 CN CN201521119200.5U patent/CN205508607U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105702440A (en) * | 2015-12-30 | 2016-06-22 | 卧龙电气集团股份有限公司 | General transformer for V/X and VV connection |
| CN105702440B (en) * | 2015-12-30 | 2018-01-19 | 卧龙电气集团股份有限公司 | V/X and VV wiring general-purpose transformers |
| CN109326409A (en) * | 2018-10-22 | 2019-02-12 | 浙江优力仕机电科技股份有限公司 | A kind of conducting wire self-transposition device |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20190419 Address after: 750000 No. 221 Xingyuan Road, Xingqing District, Yinchuan City, Ningxia Hui Autonomous Region Patentee after: Yinchuan Wolong Transformer Co., Ltd. Address before: 312300 No. 1801 Renmin West Road, Shangyu City, Shaoxing City, Zhejiang Province Co-patentee before: Yinchuan Wolong Transformer Co., Ltd. Patentee before: Wolong Electric Group Co., Ltd. |
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| TR01 | Transfer of patent right |