CN113658795A - Continuous coil winding method for 3-2 combined lead wires in parallel in radial direction - Google Patents
Continuous coil winding method for 3-2 combined lead wires in parallel in radial direction Download PDFInfo
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- CN113658795A CN113658795A CN202110940582.1A CN202110940582A CN113658795A CN 113658795 A CN113658795 A CN 113658795A CN 202110940582 A CN202110940582 A CN 202110940582A CN 113658795 A CN113658795 A CN 113658795A
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- 238000000034 method Methods 0.000 title claims abstract description 23
- 238000004804 winding Methods 0.000 title claims abstract description 12
- 230000017105 transposition Effects 0.000 claims abstract description 38
- 230000009286 beneficial effect Effects 0.000 abstract 1
- 239000002131 composite material Substances 0.000 description 6
- 239000004020 conductor Substances 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 208000008797 situs inversus Diseases 0.000 description 3
- 208000014903 transposition of the great arteries Diseases 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F41/00—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
- H01F41/02—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets
- H01F41/04—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets for manufacturing coils
- H01F41/06—Coil winding
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Abstract
The invention relates to a method for winding a continuous coil with 3 combined wires 2 connected in parallel in the radial direction, and belongs to the technical field of transformers. The method comprises the following steps: s1, performing first transposition; s2, performing second transposition; s3, performing third transposition; s4, when the other 3 combined conducting wire sections of the coil are transited, each conducting wire is used as a whole to be transposed. The invention sets three transposition operations for 3 combined wires which are connected in parallel in the radial direction in the continuous coil, solves the problem of incomplete transposition of the 3 combined wires, is beneficial to popularization and application of the 3 combined wires which are connected in parallel in the radial direction, provides more choices for the design scheme of the transformer, and practically improves the quality of the transformer and the product competitiveness.
Description
Technical Field
The invention relates to a method for winding a continuous coil with 3 combined wires 2 connected in parallel in the radial direction, and belongs to the technical field of transformers.
Background
To reduce the insulation ratio and the cost of the transformer, the composite conductor is often used in a continuous coil. Also for cost control, the combined wire of the continuous coil in radial parallel connection is usually designed to be 2, but in some special cases or larger capacity transformers, 3 continuous coils wound by the combined wire in radial parallel connection are required to be designed.
When the radial parallel wires are applied to the continuous coil, the parallel wires need to be completely transposed, the positions of the parallel wires are completely and correspondingly interchanged through transposition, electromotive force induced by longitudinal leakage flux of each parallel wire is equal, and the lengths of the parallel wires are also equal, so that the aims of no circulating current among the parallel wires and reducing the circulating current loss of the transformer are fulfilled. The continuous coil wound by the radial parallel combined conducting wire generally adopts two methods for transposition: (a) at the transition position between each section, each conducting wire is used as a whole, and standard transposition is carried out according to common conducting wires; (b) and each single wire in each combined wire is subjected to standard full transposition at 1/2 of the total number of the coil sections.
The method can effectively achieve the purpose of complete transposition of 2 combined conductors, but cannot meet the requirement of complete transposition of 3 combined conductors, because the positions of 3 combined conductors are not completely correspondingly interchanged.
Disclosure of Invention
The invention aims to provide a method for winding a continuous coil with 3 2 combined wires connected in parallel in the radial direction, which is characterized in that three transposition operations are arranged on 3 combined wires connected in parallel in the radial direction in the continuous coil, so that the problem of incomplete transposition of the 3 combined wires is solved, the popularization and application of the continuous coil with the 3 combined wires connected in parallel in the radial direction are facilitated, more choices are provided for the design scheme of a transformer, and the quality and the product competitiveness of the transformer are practically improved.
In order to achieve the purpose, the invention adopts the following technical scheme:
a method for winding a continuous coil with 3 combined wires and 2 combined wires connected in parallel in the radial direction comprises the following steps:
s1, first transposition: at 1/3 of the total number of the coil sections, when the even sections are over-positioned to the odd sections, dividing 3 combined leads into 2 groups, wherein the uppermost 2 combined leads are one group, the lower 1 combined leads are one group, and the two groups of leads exchange positions by taking the group as a unit;
or, the first transposition: at 1/3 of the total number of the coil sections, when the even sections are over-positioned to the odd sections, dividing 3 combined wires into 2 groups, wherein the uppermost 1 combined wire is one group, the lower 2 combined wires are one group, and the two groups of wires are subjected to position exchange by taking the group as a unit;
s2, second transposition: at 1/2 of the total number of the coil sections, when the even sections are over-positioned to the odd sections, all 3 combined wires are opened to carry out one-time full transposition, and the upper position and the lower position of each single wire in each combined wire are completely and correspondingly interchanged;
s3, third transposition: at 2/3 of the total number of the coil sections, when the even sections are over-positioned to the odd sections, dividing the 3 combined leads into 2 groups again, wherein the uppermost 1 combined lead is one group, the lower 2 combined leads are one group, and the two groups of leads exchange positions by taking the group as a unit;
or, the third transposition: at 2/3 of the total number of the coil sections, when the even sections are over-positioned to the odd sections, dividing the 3 combined leads into 2 groups again, wherein the uppermost 2 combined leads are one group, the lower 1 combined leads are one group, and the two groups of leads are subjected to position exchange by taking the group as a unit;
and S4, when the 3 combined conducting wire sections at the rest of the coil are transited, each conducting wire is used as a whole, and transposition is carried out according to the common conducting wire.
Further, the even sections are positive cakes, and the odd sections are negative cakes.
The invention comprises 2 parallel methods
The first method is different from the second method in that the grouping mode of the 3 combined wires is different when 1/3 of the total coil section number is transposed with the position near 2/3. It is noted that, no matter which method is adopted, the grouping mode of the 3 combined wires at the switching positions of 1/3 and 2/3 of the total coil segment number cannot be the same, namely: if the 2 uppermost combined wires are divided into one group at the coil 1/3 and the 1 lowermost combined wire is one group, the 2 lowermost combined wires must be divided into one group at the coil 2/3 and the 1 uppermost combined wire is one group; and vice versa.
The invention has the advantages that:
1. the method realizes the goal of complete transposition of 3 combined wires, greatly reduces the circulating current between the parallel wires, reduces the circulating current loss of the transformer, further improves the quality of the transformer and enhances the product competitiveness.
2. The popularization and the application of the continuous coil with the 3 combined leads connected in parallel in the radial direction are facilitated.
3. The three times of special transposition are carried out outside the coil, transposition in the coil is not needed, and the operation is simple and convenient;
4. the continuous coil is not only suitable for 3 composite combined wires of 2, but also suitable for 3 multi-composite combined wires, such as 3 composite wires, 4 composite wires and even more composite wires.
Drawings
Fig. 1 is a schematic diagram of a coil winding method according to embodiment 1 of the present invention;
fig. 2 is a schematic diagram of a coil winding method according to embodiment 2 of the present invention;
FIG. 3 is a diagram illustrating an effect of embodiment 1 of the present invention;
FIG. 4 is a diagram illustrating an effect of embodiment 2 of the present invention;
fig. 5 is an expanded view of the coil transposition of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1:
referring to fig. 1, 3 and 5, a method for winding a continuous coil with 3 combined wires 2 connected in parallel in the radial direction includes the following steps:
s1, first transposition: at 1/3 of the total number of the coil sections, when the even sections are over-positioned to the odd sections, dividing 3 combined leads into 2 groups, wherein the uppermost 2 combined leads are one group, the lower 1 combined leads are one group, and the two groups of leads exchange positions by taking the group as a unit;
s2, second transposition: at 1/2 of the total number of the coil sections, when the even sections are over-positioned to the odd sections, all 3 combined wires are opened to carry out one-time full transposition, and the upper position and the lower position of each single wire in each combined wire are completely and correspondingly interchanged;
s3, third transposition: at 2/3 of the total number of the coil sections, when the even sections are over-positioned to the odd sections, dividing the 3 combined leads into 2 groups again, wherein the uppermost 1 combined lead is one group, the lower 2 combined leads are one group, and the two groups of leads exchange positions by taking the group as a unit;
and S4, when the 3 combined conducting wire sections at the rest of the coil are transited, each conducting wire is used as a whole, and transposition is carried out according to the common conducting wire.
Further: the even sections are positive cakes, and the odd sections are negative cakes.
Example 2: a method for winding a continuous coil with 3 combined wires and 2 combined wires connected in parallel in the radial direction is characterized by comprising the following steps:
s1, first transposition: at 1/3 of the total number of the coil sections, when the even sections are over-positioned to the odd sections, dividing 3 combined wires into 2 groups, wherein the uppermost 1 combined wire is one group, the lower 2 combined wires are one group, and the two groups of wires are subjected to position exchange by taking the group as a unit;
s2, second transposition: at 1/2 of the total number of the coil sections, when the even sections are over-positioned to the odd sections, all 3 combined wires are opened to carry out one-time full transposition, and the upper position and the lower position of each single wire in each combined wire are completely and correspondingly interchanged;
s3, third transposition: at 2/3 of the total number of the coil sections, when the even sections are over-positioned to the odd sections, dividing the 3 combined leads into 2 groups again, wherein the uppermost 2 combined leads are one group, the lower 1 combined leads are one group, and the two groups of leads are subjected to position exchange by taking the group as a unit;
and S4, when the 3 combined conducting wire sections at the rest of the coil are transited, each conducting wire is used as a whole, and transposition is carried out according to the common conducting wire.
Further, the even sections are positive cakes, and the odd sections are negative cakes.
The above description is only a preferred embodiment of the present invention, but the scope of the present invention is not limited thereto. Any person skilled in the art should also cover the protection scope of the present invention by equivalent or modified concepts according to the present method within the technical scope of the present disclosure.
Claims (2)
1. A method for winding a continuous coil with 3 combined wires and 2 combined wires connected in parallel in the radial direction is characterized by comprising the following steps:
s1, first transposition: at 1/3 of the total number of the coil sections, when the even sections are over-positioned to the odd sections, dividing 3 combined leads into 2 groups, wherein the uppermost 2 combined leads are one group, the lower 1 combined leads are one group, and the two groups of leads exchange positions by taking the group as a unit;
or, the first transposition: at 1/3 of the total number of the coil sections, when the even sections are over-positioned to the odd sections, dividing 3 combined wires into 2 groups, wherein the uppermost 1 combined wire is one group, the lower 2 combined wires are one group, and the two groups of wires are subjected to position exchange by taking the group as a unit;
s2, second transposition: at 1/2 of the total number of the coil sections, when the even sections are over-positioned to the odd sections, all 3 combined wires are opened to carry out one-time full transposition, and the upper position and the lower position of each single wire in each combined wire are completely and correspondingly interchanged;
s3, third transposition: at 2/3 of the total number of the coil sections, when the even sections are over-positioned to the odd sections, dividing the 3 combined leads into 2 groups again, wherein the uppermost 1 combined lead is one group, the lower 2 combined leads are one group, and the two groups of leads exchange positions by taking the group as a unit;
or, the third transposition: at 2/3 of the total number of the coil sections, when the even sections are over-positioned to the odd sections, dividing the 3 combined leads into 2 groups again, wherein the uppermost 2 combined leads are one group, the lower 1 combined leads are one group, and the two groups of leads are subjected to position exchange by taking the group as a unit;
and S4, when the 3 combined conducting wire sections at the rest of the coil are transited, each conducting wire is used as a whole, and transposition is carried out according to the common conducting wire.
2. The method for winding a continuous coil with 3 combined wires 2 connected in parallel in the radial direction according to claim 1, wherein the method comprises the following steps: the even sections are positive cakes, and the odd sections are negative cakes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110940582.1A CN113658795A (en) | 2021-08-17 | 2021-08-17 | Continuous coil winding method for 3-2 combined lead wires in parallel in radial direction |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110940582.1A CN113658795A (en) | 2021-08-17 | 2021-08-17 | Continuous coil winding method for 3-2 combined lead wires in parallel in radial direction |
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| CN113658795A true CN113658795A (en) | 2021-11-16 |
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| CN202110940582.1A Pending CN113658795A (en) | 2021-08-17 | 2021-08-17 | Continuous coil winding method for 3-2 combined lead wires in parallel in radial direction |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3283280A (en) * | 1964-12-22 | 1966-11-01 | Westinghouse Electric Corp | Transposition for electrical conductors |
| JPH10172824A (en) * | 1996-10-09 | 1998-06-26 | Fuji Electric Co Ltd | Superconducting coil for induction electric equipment |
| CN101620923A (en) * | 2009-06-15 | 2010-01-06 | 宁波天安（集团）股份有限公司 | Method for replacing double/quadruple helix coil of transformer with long-circle section |
| CN102136365A (en) * | 2011-01-06 | 2011-07-27 | 常州联力变压器有限公司 | Method for interchanging windings by single spiral mode of three parallel-connected lead wires |
| CN104505250A (en) * | 2014-12-08 | 2015-04-08 | 吴江变压器有限公司 | Combined line transposition structure for transformer winding and transposition method of combined line transposition structure |
| CN111554508A (en) * | 2020-06-12 | 2020-08-18 | 上海电气集团(张家港)变压器有限公司 | Manufacturing method of continuous winding transformer coil with 6 conducting wires wound in parallel |
-
2021
- 2021-08-17 CN CN202110940582.1A patent/CN113658795A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3283280A (en) * | 1964-12-22 | 1966-11-01 | Westinghouse Electric Corp | Transposition for electrical conductors |
| JPH10172824A (en) * | 1996-10-09 | 1998-06-26 | Fuji Electric Co Ltd | Superconducting coil for induction electric equipment |
| CN101620923A (en) * | 2009-06-15 | 2010-01-06 | 宁波天安（集团）股份有限公司 | Method for replacing double/quadruple helix coil of transformer with long-circle section |
| CN102136365A (en) * | 2011-01-06 | 2011-07-27 | 常州联力变压器有限公司 | Method for interchanging windings by single spiral mode of three parallel-connected lead wires |
| CN104505250A (en) * | 2014-12-08 | 2015-04-08 | 吴江变压器有限公司 | Combined line transposition structure for transformer winding and transposition method of combined line transposition structure |
| CN111554508A (en) * | 2020-06-12 | 2020-08-18 | 上海电气集团(张家港)变压器有限公司 | Manufacturing method of continuous winding transformer coil with 6 conducting wires wound in parallel |
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