CN119381133A - Complete transposition method of two three-combination conductors and transformer winding - Google Patents
Complete transposition method of two three-combination conductors and transformer winding Download PDFInfo
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/28—Coils; Windings; Conductive connections
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/28—Coils; Windings; Conductive connections
- H01F27/2823—Wires
- H01F27/2828—Construction of conductive connections, of leads
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/28—Coils; Windings; Conductive connections
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Abstract
The invention belongs to the technical field of transformers, in particular to a complete transposition method of two three-combination wires and a transformer winding, wherein the complete transposition method of the two three-combination wires is to perform special transposition on the inter-section surface position at one third section and the inter-section surface position at two thirds section of a bus cake, the transposition methods among other sections are subjected to cross transposition according to a standard cross transposition mode, after the transposition is performed according to the method, the complete transposition can be achieved, once the transposition on a continuous coil reaches the complete transposition, the complete transposition is represented by the fact that 6 wires are in the space position of the whole coil, the occupied space position is the same, the space position number is the same, the fact that the lengths of the 6 wires are the same, the induction voltages are the same, the resistances are the same, the passing currents are the same, the circulating current loss is completely eliminated due to the fact that voltage difference does not exist among the 6 wires, the load capacity of the coil is improved, and the additional loss of the coil is reduced.
Description
Technical Field
The invention belongs to the technical field of transformers, and particularly relates to a complete transposition method of two three-combination wires and a transformer winding.
Background
In order to ensure that the current flowing through the coil of the large and medium-sized transformer is matched with the capacity, obviously, along with the increase of the capacity of the transformer, the current flowing through each turn of wire of the coil is also increased. To avoid overheating of the coil wires, the total cross-sectional area of the coil per turn of wire is also increased. In practical application of the transformer, the method for increasing the total current cross section area of each turn of the wires comprises the steps of (1) increasing the current cross section area of each turn of the wires, (2) increasing the number of parallel windings of each turn of the wires, and (3) simultaneously increasing the current cross section area and the number of parallel windings of each turn of the wires.
Wherein, for the mode in (1), the eddy current loss (or the additional loss) is increased by increasing the flow cross section area of the single wire, and for the mode in (2), the transposition loss (or the circulating current loss) is increased when the number of the parallel windings of each turn of wire is increased in the incomplete transposition. In order to reduce the eddy current loss and the transposition loss of the coil, more common wires, combined wires or transposition wires are adopted for parallel winding of a plurality of small wires.
Besides the transposed conductor (the transposed conductor can reach the complete transposition) with the parallel winding of a plurality of small conductors, the transposition loss (or the circulation current loss) can be eliminated, the common conductor and the combined conductor with the parallel winding of a plurality of (more than two) small conductors can not reach the complete transposition if the current traditional standard cross transposition is not realized, and the continuous coil wound by two and three combined conductors can not reach the complete transposition if the current traditional standard cross transposition is also realized for each turn of conductor. And failure to achieve complete transposition means that the transposition losses (or circulating current losses) cannot be eliminated.
Disclosure of Invention
The invention aims to provide a complete transposition method of two three-combination wires and a transformer winding, so that when the number of the parallel windings of each turn of wires of a continuous coil is two three-combination wires, the two three-combination wires are wound, the two three-combination wires are completely transposed, and further transposition loss (or circulating current loss) is eliminated, so that the aims of reducing cost and enhancing efficiency are fulfilled.
In order to achieve the above purpose, the invention adopts the following technical scheme:
The method for completely replacing two three-combination wires comprises the following steps:
The six-section continuous coil is wound in a parallel winding mode by adopting two three-combination wires, wherein each three-combination wire comprises 3 single wires, and the arrangement order of 6 single wires of each turn of coil in each continuous coil is consistent;
the wire outlet end of the first continuous coil and the wire inlet end of the second continuous coil, the wire outlet end of the third continuous coil and the wire inlet end of the fourth continuous coil, and the wire outlet end of the fifth continuous coil and the wire inlet end of the sixth continuous coil are respectively subjected to transposition and wiring in a standard cross transposition mode, wherein the standard cross transposition mode is to sequentially transpose and connect two three combined wires in the former continuous coil to two three combined wires in the latter continuous coil;
And a 1-2-1-2 cross transposition mode is adopted to carry out transposition wiring between the outlet end of the second continuous coil and the inlet end of the third continuous coil and between the outlet end of the fourth continuous coil and the inlet end of the fifth continuous coil, wherein the 1-2-1-2 cross transposition mode is to connect a first single wire in a first three-combination wire in a former continuous coil to a third single wire in a second three-combination wire in a latter continuous coil in a transposition way, sequentially connect a second single wire and a third single wire in the first three-combination wire in the former continuous coil to a first single wire and a second single wire in the second three-combination wire in the latter continuous coil in a transposition way, and connect a first single wire in the second three-combination wire in the former continuous coil to a third single wire in the first three-combination wire in the latter continuous coil in a transposition way, and sequentially connect a second single wire in the former continuous coil to a second single wire in the second three-combination wire in the former continuous coil in a second single wire and a third single wire in the former continuous coil.
Preferably, the three combined wires comprise three bare wires, each bare wire is coated with an inner insulating layer to form three independent wires, and then the three independent wires are combined together to form the three combined wires by uniformly coating an outer insulating layer.
Preferably, the transposition wiring position of the 1-2-1-2 cross transposition mode is located at the surface position of the outer diameter side of the coil.
The invention also provides a transformer winding which is wired by adopting the complete transposition method of the two three-combination wires.
Compared with the prior art, the method has the beneficial effects that after the complete transposition method of the two three combined wires is adopted for transposition, after the winding of the transformer is wound by adopting 6 wires, the number of space positions occupied by the 6 wires is identical, namely, 6 wires are distributed at all positions inwards from the outer diameter side of the whole winding, so that the effect of complete transposition is achieved, and after the complete transposition, no voltage difference exists among the 6 wires of the wound winding, and no circulating current loss (or transposition loss) can be generated. The three-wire coil is characterized in that once the transposition of the two three-wire coil reaches the complete transposition, the three-wire coil represents that the 6 wires occupy the same space positions on the whole coil, the same space positions mean that the 6 wires have the same length, the same induced voltage, the same resistance and the same passing current (or the same load capacity), the circulating current loss (or transposition loss) is completely eliminated due to the fact that no voltage difference exists between the 6 wires, the load capacity of the coil is improved, and the additional loss of the coil is reduced.
Drawings
The accompanying drawings are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate the invention and together with the embodiments of the invention, serve to explain the invention. In the drawings:
fig. 1 is a schematic diagram of a coil layout according to an embodiment of the complete transposition method of two three-wire conductors of the present invention.
Fig. 2- (a), 2- (b) and 2- (c) are schematic views of three different combinations when 6 wires are used to wind the coil, respectively.
Fig. 3 is a schematic diagram of the wiring of coils in the comparative example, all of which employ the standard crossover method.
In the drawings, each reference numeral is intended to:
A first segment continuous coil 100, a first single wire 101, a second single wire 102, a third single wire 103, a first three-combined wire 104, a second three-combined wire 105, a first turn coil 106, a second turn coil 107, a second segment continuous coil 200, a third segment continuous coil 300, a fourth segment continuous coil 400, a fifth segment continuous coil 500, a sixth segment continuous coil 600;
bare conductor 700, turn insulation 701, inner insulation 702, outer insulation 703;
1-2-1-2 cross transposition mode A and standard cross transposition mode B;
Position I, position II, position III, position IV, position V, position VI.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
In one embodiment, a method for completely transposing two three-combined wires is provided, and as shown in fig. 1, the method for completely transposing two three-combined wires is implemented by the following ways:
Six continuous coils are wound in parallel by adopting two and three combined wires, and are all used for winding on the iron core of the transformer, wherein in fig. 1, the six continuous coils are respectively a first continuous coil 100, a second continuous coil 200, a third continuous coil 300, a fourth continuous coil 400, a fifth continuous coil 500 and a sixth continuous coil 600, the six continuous coils are respectively provided with two turns (two turns), and in other embodiments, the six continuous coils can also be wound with other turns, one turn on the upper side is positioned on the surface position on the outer diameter side of the coil, and one turn on the lower side is positioned on the bottom position on the inner diameter side of the coil.
When winding a coil on a core of a transformer, it is preferable that the number of segments of the continuous coil wound by winding two three combined wires in parallel is a multiple of 6, for example, 6, 12, 18, or the like.
Each of the two three combined wires comprises 3 single wires, and the ranking order of the 6 single wires of each turn of coil in each continuous coil is consistent. Taking the first-segment continuous coil 100 in fig. 1 as an example, the first-segment continuous coil comprises a first-turn coil 106 and a second-turn coil 107, the first-turn coil 106 is located on the outer diameter side, the second-turn coil 107 is located on the inner diameter side, the arrangement order of 6 single wires in the first-turn coil 106 and 6 single wires in the second-turn coil 107 is consistent, and the arrangement order is "1-2-3-4-5-6". Taking the first turn coil 106 as an example, it includes two three combined wires, namely a first three combined wire 104 and a second three combined wire 105, respectively, and taking the first three combined wire 104 as an example, it includes 3 single wires, namely a first single wire 101, a second single wire 102 and a third single wire 103, respectively.
Since the first continuous coil 100 is a continuous coil, the first ends of the 6 individual wires in the first turn coil 106 are the electrical input ends of the whole winding, and the tail ends are electrically connected to the 6 individual wires in the second turn coil 107 in sequence according to the ranking order, for example, the tail ends of the first individual wires 101 are electrically connected to the first ends of the individual wires in the second turn coil 107 with the ranking order of "1".
As shown in fig. 1, between the outgoing line end of the first continuous coil 100 and the incoming line end of the second continuous coil 200, between the outgoing line end of the third continuous coil 300 and the incoming line end of the fourth continuous coil 400, and between the outgoing line end of the fifth continuous coil 500 and the incoming line end of the sixth continuous coil 600, a standard cross-over transposition mode B is used to perform transposition wiring, where each single wire of two three combined wires in the former continuous coil is sequentially transposed and connected to each single wire of two three combined wires in the latter continuous coil.
Taking the case that the wire outlet end of the first continuous coil 100 and the wire inlet end of the second continuous coil 200 are connected by adopting the standard cross transposition mode B as an example, the wire outlet end of the first three-combination wire 104 in the first continuous coil 100 is the tail end of the 3 single wires with the ranking order of "1, 2 and 3" in the second turn coil 107, the wire outlet end of the second three-combination wire 105 in the first continuous coil 100 is the tail end of the 3 single wires with the ranking order of "3, 4 and 5" in the second turn coil 107, and after the first continuous coil 100 and the second continuous coil 200 are connected by adopting the standard cross transposition mode B, the ranking order of the two three-combination wires in the second continuous coil 200 is transposed, namely, the ranking order of the 6 wires in the two turns of the second continuous coil 200 is changed to "4, 5, 6, 1,2 and 3".
The wire outlet end of the second continuous coil 200 and the wire inlet end of the third continuous coil 300, and the wire outlet end of the fourth continuous coil 400 and the wire inlet end of the fifth continuous coil 500 are respectively transposed and connected by adopting a 1-2-1-2 transposition mode A, wherein the 1-2-1-2 transposition mode A is to transpose and connect a first single wire in a first three-combined wire in a previous continuous coil to a third single wire in a second three-combined wire in a subsequent continuous coil, to transpose and connect a second single wire and a third single wire in the first three-combined wire in the previous continuous coil to a first single wire and a second single wire in the second three-combined wire in the subsequent continuous coil, to transpose and connect a first single wire in the second three-combined wire in the previous continuous coil to a third single wire in the subsequent continuous coil, and to connect a second single wire in the second three-combined wire in the previous continuous coil to a second single wire in the subsequent continuous coil.
Taking the case that the wire outlet end of the second continuous coil 200 and the wire inlet end of the third continuous coil 300 are connected by adopting a 1-2-1-2 transposition mode a as an example, the wire outlet end of the first three combined wires in the second continuous coil 200 is the tail end of 3 single wires with the arrangement order of 4, 5 and 6 in the first turn coil (outer diameter side), the wire outlet end of the second three combined wires in the second continuous coil 200 is the tail end of 3 single wires with the arrangement order of 1, 2 and 3 in the first turn coil (outer diameter side), and when the second continuous coil 200 and the third continuous coil 300 are connected by adopting the 1-2-1-2 transposition mode a:
The outlet end of the 1 st single wire (single wire with the ranking order of "4") of the first three combined wires in the second-stage continuous coil 200 is connected to the 3 rd single wire (single wire with the ranking order of "4" in the first turn of the third-stage continuous coil 300) of the second three combined wires in the third-stage continuous coil 300; the outgoing ends of the 2 nd and 3 rd single wires (the 2 single wires with the order of "5, 6") of the first three combined wires in the second continuous coil 200 are connected to the 1 st and 2 nd single wires (the 2 single wires with the order of "5, 6" in the first turn of the third continuous coil 300) of the second three combined wires in the third continuous coil 300, and the outgoing ends of the 1 st single wire (the 2 single wires with the order of "1" in the order of "2") of the second three combined wires in the second continuous coil 200 are connected to the 3 rd single wire (the 3 single wires with the order of "1" in the first turn of the third continuous coil 300) of the first three combined wires in the third continuous coil 300, and the outgoing ends of the 2 nd single wires (the 2 single wires with the order of "2, 3" in the first turn of the third continuous coil 300) of the second three combined wires in the second continuous coil 200 are connected to the 3 single wires with the order of "2" in the third continuous coil 300.
After the second-section continuous coil 200 and the third-section continuous coil 300 are subjected to transposition wiring in a 1-2-1-2 transposition mode A, the ranking order of the two three combined wires in the third-section continuous coil 300 is subjected to transposition, namely the ranking order of the 6 individual wires in the two turns of the third-section continuous coil 300 is changed into 2,3, 1, 5, 6 and 4.
After all the transposition is completed, the ranking order of the respective 6 individual wires in the two turns of the first continuous coil 100 is "1, 2, 3,4, 5, 6", the ranking order of the respective 6 individual wires in the two turns of the second continuous coil 200 is "4, 5, 6, 1, 2, 3", the ranking order of the respective 6 individual wires in the two turns of the third continuous coil 300 is "2, 3, 1, 5, 6, 4", the ranking order of the respective 6 individual wires in the two turns of the fourth continuous coil 400 is "5, 6, 4, 2, 3, 1", the ranking order of the respective 6 individual wires in the two turns of the fifth continuous coil 500 is "3, 1, 2, 5, 4, 5", and the ranking order of the respective 6 individual wires in the two turns of the sixth continuous coil 600 is "6, 4,5, 3, 1, 2".
According to fig. 1, after the complete transposition method of the two three combined wires is adopted for transposition, after the winding of the transformer is wound by adopting 6 wires, the number of space positions occupied by the 6 wires is identical, namely, 6 wires are distributed at all positions (position I, position II, position III, position IV, position V and position VI) inwards from the outer diameter side of the whole winding, so that the effect of complete transposition is achieved, and after the complete transposition, no voltage difference exists between the 6 wires for winding the winding, and no circulating current loss (or transposition loss) can be generated.
The three-wire coil is characterized in that once the transposition of the two three-wire coil reaches the complete transposition, the three-wire coil represents that the 6 wires occupy the same space positions on the whole coil, the same space positions mean that the 6 wires have the same length, the same induced voltage, the same resistance and the same passing current (or the same load capacity), the circulating current loss (or transposition loss) is completely eliminated due to the fact that no voltage difference exists between the 6 wires, the load capacity of the coil is improved, and the additional loss of the coil is reduced.
As can be seen from the above embodiments, the method for completely replacing the two three-combined conductor is to replace the inter-segment surface position at one third of the total number of segments (or the number of bus cakes) and the inter-segment surface position at two thirds of the total number of segments (or the number of bus cakes), perform the special replacement of the 1-2-1-2 cross-replacing mode A once respectively, and perform the cross-replacing according to the standard cross-replacing mode B by the replacement method between the other segments, so that the complete replacement can be achieved after the replacement is performed according to the method. In the embodiment, "1-2-1-2" in the 1-2-1-2 cross-transposition system A means that "1" represents a transposition system with 1 line as1 group and "2" represents a transposition system with 2 lines as1 group.
In the complete transposition method of the two three-combination wires, the technological process of the 1-2-1-2 cross transposition mode A is different from that of the standard cross transposition mode B, the standard cross transposition mode B can finish transposition without cutting the two three-combination wires during transposition, and in the special transposition mode of the two-1-2 cross transposition mode A, each transposition needs to cut the two three-combination wires first (namely, 6 wires need to be cut for each special transposition, 12 wires need to be cut for the two special transposition), turn insulation is stripped, then after welding is performed according to one-to-one transposition positions shown in the special transposition and welding positions are processed according to technological requirements, turn insulation is wrapped again, and the special transposition is finished.
Because the two special transposition steps (1-2-1-2 cross transposition mode A) in the method have the technological processes of cutting, welding and insulating turn-by-turn when the transposition is completed, if the special transposition is arranged at the bottom (inner diameter side), once the manufacturing process is wrong, the operation space is blocked and cannot correct errors because the special transposition is arranged at the inner diameter side.
Therefore, the two special transposition positions in the method are both arranged on the surface position (the outer diameter side), once errors occur in the manufacturing process, the operation space is not blocked because the special transposition positions are arranged on the outer diameter side, and the error correction is convenient.
In practical application, as long as the total number of segments of the continuous coil is an integer multiple of 6, the complete transposition can be realized for two three-combination wires according to the transposition method disclosed by the patent.
In practical application, if the total number of segments of the continuous coil is not an integer multiple of 6, complete transposition cannot be realized for two and three combined wires, but even if complete transposition cannot be realized, the incomplete transposition rate is far lower than that obtained by adopting a traditional cross transposition mode.
Based on the above embodiments, in the method, the winding structure is simple and clear, the coil design and the processing and manufacturing are facilitated, the two special transposition is arranged on the surface position (the outer diameter side), the error correction is facilitated, and when the complete transposition is achieved, the number of times that two three combined wires need to be sheared is minimum, and the number of times that welding is required is minimum.
Further, in another embodiment, in the method for completely replacing the two three-combined wires, the three-combined wires include three bare wires, each bare wire is first covered with an inner insulating layer to form three separate wires, and then the three separate wires are combined together to form the three-combined wire.
In practical application of the transformer coil, as shown in fig. 2, when the coil is wound by using 6 wires, the 6 wires may be composed of 6 common wires (as shown in fig. 2- (a)), three two-two combined wires (as shown in fig. 2- (b)), and two three combined wires (as shown in fig. 2- (c)).
When 6 common wires are used, the turn insulation 701 of each bare wire 700 is independent insulation, resulting in a large total size H1 of the 6 common wires, which results in a large coil volume, low coil filling rate, large material consumption, and high cost, as shown in fig. 2- (a).
Referring again to the wires shown in fig. 2- (b), the three two-wire combination of fig. 2- (b) is characterized in that each bare wire 700 is first covered with an inner insulation 702, then the two wires are combined together to form a system covered with an outer insulation 703, the turn insulation=inner insulation+outer insulation of the two-wire combination results in a total dimension H2< H1 of the three two-wire combination, a coil volume < in the manner shown in fig. 2- (a), a coil fill ratio > in fig. 2- (a), a material usage < in fig. 2- (a), and a cost < in fig. 2- (a).
Finally, referring to fig. 2- (c), two three-combined wires are shown, and since each bare wire 700 is also first covered with an inner insulation 702, then three wires are combined together to form a total covered with an outer insulation 703, the turn insulation of the three-combined wires is equal to = inner insulation + outer insulation, but the total dimensions H3< H2< H1 of the two three-combined wires, the coil volume < fig. 2- (b) < fig. 2- (a), the coil filling rate > fig. 2- (b) > fig. 2- (a), the material usage < fig. 2- (b) < fig. 2- (a), and the cost < fig. 2- (b) < fig. 2- (a).
As shown by the comparison analysis, in the combination of 6 wires, the combination of two and three wires in fig. 2- (c) can minimize the total size of the wires, minimize the coil volume, maximize the coil filling rate, minimize the material consumption and minimize the cost, and is the best combination, so the method adopts the combination of two and three wires in fig. 2- (c).
Because the two three combined wires in the figure 2- (c) are adopted, the optimal combination form is adopted in the combination form, and the adopted transposition method capable of realizing complete transposition is adopted, the method has great significance on cost reduction and synergy of the whole transformer.
As a comparison, if all the sections of the two three combined wires are transposed by adopting the standard cross transposition method, as shown in fig. 3, the total number of sections (D) =6 sections of the continuous coil is still taken as an example for analysis convenience, and the winding schematic diagram of each section of the continuous coil is shown in fig. 3, the six-section continuous coil is the first section continuous coil 100, the second section continuous coil 200, the third section continuous coil 300, the fourth section continuous coil 400, the fifth section continuous coil 500 and the sixth section continuous coil 600, respectively, and as can be seen from fig. 3, after all the sections of the two three combined wires are transposed by adopting the standard cross transposition method, the number of space positions occupied by the 6 wires is different, the total transposition is not achieved, the voltage difference still exists between the 6 wires due to the fact that the total transposition is not achieved, and the existence of the voltage difference still causes the circulation current loss (or transposition loss).
In one embodiment, a transformer winding is provided that is routed using the full transposition method of the two three-wire combination of the previous embodiments. Because the transformer adopts two three combined wires to achieve complete transposition on the continuous coil, the three combined wires represent that the 6 wires occupy the same space positions on the space position of the whole coil, the same space position number means that the 6 wires have the same length, the same induced voltage, the same resistance and the same passing current (or the same load capacity), and the circulating current loss (or transposition loss) is completely eliminated due to the fact that no voltage difference exists between the 6 wires, so that the load capacity of the coil is improved, and the additional loss of the coil is reduced.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (4)
1. A method for complete transposition of two and three combined wires, comprising:
The six-section continuous coil is wound in a parallel winding mode by adopting two three-combination wires, wherein each three-combination wire comprises 3 single wires, and the arrangement order of 6 single wires of each turn of coil in each continuous coil is consistent;
the wire outlet end of the first continuous coil and the wire inlet end of the second continuous coil, the wire outlet end of the third continuous coil and the wire inlet end of the fourth continuous coil, and the wire outlet end of the fifth continuous coil and the wire inlet end of the sixth continuous coil are respectively subjected to transposition and wiring in a standard cross transposition mode, wherein the standard cross transposition mode is to sequentially transpose and connect two three combined wires in the former continuous coil to two three combined wires in the latter continuous coil;
And a 1-2-1-2 cross transposition mode is adopted to carry out transposition wiring between the outlet end of the second continuous coil and the inlet end of the third continuous coil and between the outlet end of the fourth continuous coil and the inlet end of the fifth continuous coil, wherein the 1-2-1-2 cross transposition mode is to connect a first single wire in a first three-combination wire in a former continuous coil to a third single wire in a second three-combination wire in a latter continuous coil in a transposition way, sequentially connect a second single wire and a third single wire in the first three-combination wire in the former continuous coil to a first single wire and a second single wire in the second three-combination wire in the latter continuous coil in a transposition way, and connect a first single wire in the second three-combination wire in the former continuous coil to a third single wire in the first three-combination wire in the latter continuous coil in a transposition way, and sequentially connect a second single wire in the former continuous coil to a second single wire in the second three-combination wire in the former continuous coil in a second single wire and a third single wire in the former continuous coil.
2. The method of claim 1, wherein the three combined wires comprise three bare wires, each bare wire is covered with an inner insulating layer to form three separate wires, and then the three separate wires are combined together to form the three combined wires.
3. The method for completely replacing two three-wire conductors according to claim 1, wherein the 1-2-1-2 cross-replacing mode is characterized in that the position of the replacing wiring is located at the outer diameter side of the coil.
4. A transformer winding is characterized in that the transformer winding is wired by adopting the complete transposition method of two three-combination wires according to any one of claims 1-3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202411918520.0A CN119381133B (en) | 2024-12-25 | 2024-12-25 | Complete transposition method of two three-combination conductors and transformer winding |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202411918520.0A CN119381133B (en) | 2024-12-25 | 2024-12-25 | Complete transposition method of two three-combination conductors and transformer winding |
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| CN119381133A true CN119381133A (en) | 2025-01-28 |
| CN119381133B CN119381133B (en) | 2025-03-21 |
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| CN202411918520.0A Active CN119381133B (en) | 2024-12-25 | 2024-12-25 | Complete transposition method of two three-combination conductors and transformer winding |
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Citations (5)
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|---|---|---|---|---|
| JPS5890713A (en) * | 1981-11-26 | 1983-05-30 | Toshiba Corp | Continuous disc winding |
| CN1776840A (en) * | 2005-12-13 | 2006-05-24 | 中电电气集团有限公司 | Layer-type coil-replacement method of radial-direction multiple-parallel-wound coil |
| CN202422951U (en) * | 2012-01-09 | 2012-09-05 | 天威云南变压器股份有限公司 | Transformer coil and transformer |
| CN109509622A (en) * | 2019-01-10 | 2019-03-22 | 特变电工湖南工程有限公司 | More conducting wires and around fully continuous type coil and transformer |
| CN113658795A (en) * | 2021-08-17 | 2021-11-16 | 江西变压器科技股份有限公司 | Continuous coil winding method for 3-2 combined lead wires in parallel in radial direction |
-
2024
- 2024-12-25 CN CN202411918520.0A patent/CN119381133B/en active Active
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|---|---|---|---|---|
| JPS5890713A (en) * | 1981-11-26 | 1983-05-30 | Toshiba Corp | Continuous disc winding |
| CN1776840A (en) * | 2005-12-13 | 2006-05-24 | 中电电气集团有限公司 | Layer-type coil-replacement method of radial-direction multiple-parallel-wound coil |
| CN202422951U (en) * | 2012-01-09 | 2012-09-05 | 天威云南变压器股份有限公司 | Transformer coil and transformer |
| CN109509622A (en) * | 2019-01-10 | 2019-03-22 | 特变电工湖南工程有限公司 | More conducting wires and around fully continuous type coil and transformer |
| CN113658795A (en) * | 2021-08-17 | 2021-11-16 | 江西变压器科技股份有限公司 | Continuous coil winding method for 3-2 combined lead wires in parallel in radial direction |
Non-Patent Citations (1)
| Title |
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| 张军海: "电力变压器连续式绕组导线换位优化设计", 《机电工程技术》, vol. 51, no. 10, 2 December 2022 (2022-12-02), pages 220 - 223 * |
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| CN119381133B (en) | 2025-03-21 |
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