CN112885596A - Winding method of primary winding of voltage transformer coil - Google Patents
Winding method of primary winding of voltage transformer coil Download PDFInfo
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- CN112885596A CN112885596A CN202110077135.8A CN202110077135A CN112885596A CN 112885596 A CN112885596 A CN 112885596A CN 202110077135 A CN202110077135 A CN 202110077135A CN 112885596 A CN112885596 A CN 112885596A
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- 238000004804 winding Methods 0.000 title claims abstract description 170
- 238000000034 method Methods 0.000 title claims abstract description 27
- 239000010410 layer Substances 0.000 claims abstract description 82
- 239000011229 interlayer Substances 0.000 claims abstract description 39
- 238000004519 manufacturing process Methods 0.000 claims abstract description 10
- 239000002390 adhesive tape Substances 0.000 claims description 5
- 238000005192 partition Methods 0.000 claims description 5
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 4
- 229910052802 copper Inorganic materials 0.000 claims description 4
- 239000010949 copper Substances 0.000 claims description 4
- 238000003466 welding Methods 0.000 claims 1
- 238000009413 insulation Methods 0.000 abstract description 14
- 238000010248 power generation Methods 0.000 description 5
- 238000011161 development Methods 0.000 description 4
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 238000006386 neutralization reaction Methods 0.000 description 1
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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
- H01F41/064—Winding non-flat conductive wires, e.g. rods, cables or cords
- H01F41/066—Winding non-flat conductive wires, e.g. rods, cables or cords with insulation
-
- 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
- H01F41/12—Insulating of windings
- H01F41/122—Insulating between turns or between winding layers
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Coils Of Transformers For General Uses (AREA)
- Insulating Of Coils (AREA)
Abstract
The invention is suitable for the technical field of low-voltage electric appliance coil manufacture, and provides a winding method of a primary winding of a voltage transformer coil, wherein a plurality of layers of coils are sequentially wound on an insulating framework from inside to outside, the plurality of layers of coils are respectively a plurality of layers of densely wound coils and two layers of first and last turns of sparsely wound coils from inside to outside, and a layer of interlayer insulating paper is arranged between each coil and the insulating framework, between adjacent coils and outside of each coil, so that the interlayer insulation and turn-to-turn insulation of the primary coil are improved, and the overvoltage resistance is improved: the creepage distance between layers is increased, the interlayer insulation is improved, the wire turn line distance of the wire inlet end and the wire outlet end of the primary coil is increased, and the turn insulation is improved, so that the purpose of improving the overvoltage resistance of the primary coil is achieved.
Description
Technical Field
The invention belongs to the technical field of low-voltage electric appliance coil manufacturing, and particularly relates to a winding method of a primary winding of a voltage transformer coil.
Background
Currently, the traditional energy structure in China cannot meet the requirements of current sustainable development, and the development and utilization of new energy become the primary task of the current energy strategic target. Taking solar energy and wind energy resources as examples, the conversion of the solar energy and the wind energy to electric energy resources can be realized by applying advanced technology, so that the power consumption requirement is met, and the rapid development of a power network is realized. With the proposal of ' carbon neutralization ' goal in our country before 2060, new energy power generation has to occupy a greater proportion in our country's power grid.
Compared with the traditional power generation mode, the new energy power generation has particularity, the randomness, the volatility and the uncertainty are obvious, and frequent switching and phase combination can occur under the condition; and due to the limitation of the current technical level, the new energy power generation has larger harmonic influence. Due to the factors, the voltage transformer for monitoring the voltage level in the grid connection link is greatly impacted, the stable operation of the voltage transformer is more challenging, and the voltage transformer in the traditional process cannot adapt to the use situation of new energy power generation more and more.
At present, in the transformer industry, a primary winding method commonly adopted for manufacturing a primary coil of a voltage transformer is finished by winding one conducting wire at a time, 50 years of production experience exists in China, the coil winding manufacturing process is continuously improved along with continuous development of advanced machine equipment, and compared with the mature one conducting wire, the one conducting wire winding method still has the technical process imperfection, namely when the primary coil is subjected to overvoltage impact (atmospheric overvoltage and operation overvoltage) of a power grid, part of wire turns of an inlet end and an outlet end of the winding bear overhigh voltage, and the insulation of the winding and a product is greatly damaged. Therefore, a more sophisticated and advanced primary winding process is urgently needed to further improve the design and manufacturing level of the transformer.
Disclosure of Invention
The invention provides a winding method of a primary winding of a voltage transformer coil, aiming at solving the problem that the primary winding of the existing voltage transformer is burnt out by over-voltage impact.
The invention is realized in this way, the winding method of the voltage transformer coil primary winding, the voltage transformer coil primary winding includes the insulating skeleton; a plurality of layers of coils are sequentially wound on the insulating framework from inside to outside, the plurality of layers of coils are respectively a plurality of layers of close-wound coils and two layers of first-end turn loose-wound coils from inside to outside, and a layer of interlayer insulating paper is arranged between each coil and the insulating framework, between adjacent coils and outside the coils; the method comprises the following steps:
s1, manufacturing a winding: selecting a single enameled wire with a proper wire diameter as a winding wire;
s2, winding a first layer of coil: winding a winding wire from one end of the insulating framework to the other end of the insulating framework through a parallel winding machine, keeping a 5mm distance between every two turns, and keeping a 5mm distance between the winding wire and the upper edge and the lower edge of the insulating framework to form a first layer of coil;
s3, adding a first layer of interlayer insulating paper on the outer side of the first layer of coil;
s4, winding a second layer of coil: winding the winding on the outer side of the interlayer insulating paper through a parallel winding machine, keeping a 5mm distance between every two turns, and keeping a 5mm distance between the winding and the upper side and the lower side of the insulating framework to form a second layer of coil;
s5, adding a second layer of interlayer insulating paper on the outer side of the second layer of coil;
s6, winding a third layer of coil: winding the winding on the outer side of the interlayer insulating paper through a parallel winding machine, wherein the distance between every two turns is kept to be 0.06mm, and the distance between the winding and the upper side and the lower side of the insulating framework is kept to be 5mm, so that a third layer of coil is formed;
s7, winding a fourth layer of coil: winding the winding on the outer side of the interlayer insulating paper through a parallel winding machine, wherein the distance between every two turns is kept to be 0.06mm, and the distance between the winding and the upper side and the lower side of the insulating framework is kept to be 5mm, so that a third layer of coil is formed;
s8, repeating the steps until the last but one layer of coil is wound;
s9, winding a penultimate coil: winding the winding on the outer side of the interlayer insulating paper through a parallel winding machine, keeping a 5mm distance between every two turns, and keeping a 5mm distance between the winding and the upper side and the lower side of the insulating framework to form a penultimate layer coil;
s10, winding the last layer of coil: and winding the winding on the outer side of the interlayer insulating paper by a parallel winding machine, keeping a 5mm distance between every two turns, and keeping a 5mm distance between the winding and the upper and lower edges of the insulating framework to form a final layer of coil.
Preferably, the interlayer insulating paper and the coil are fixedly connected through a double-sided adhesive tape.
Preferably, the turn pitch of the close-wound turns is 0.06 mm;
and the turn-to-turn distance of the first and last loose coils is 5 mm.
Preferably, a partition plate is used as a support between the first and last loose winding coils and the close winding coils, so that uniform winding is ensured.
Preferably, the distance between the winding and the upper edge and the lower edge of the insulating framework is kept to be 5 mm.
Preferably, the insulating paper and the coil are fixedly connected through a double-sided adhesive tape.
Preferably, the coil is formed by winding a plurality of winding wires made of enameled round copper wires.
Preferably, the ends of the enameled round copper wires are welded into a whole.
Compared with the prior art, the invention has the beneficial effects that: the invention relates to a winding method of a primary winding of a voltage transformer coil, which comprises the following steps of sequentially winding a plurality of layers of coils on an insulating framework from inside to outside, wherein the plurality of layers of coils are respectively a multi-layer densely-wound coil and two layers of first and last turns of loosely-wound coils from inside to outside, and a layer of interlayer insulating paper is arranged between each coil and the insulating framework, between adjacent coils and outside each coil, so that the interlayer insulation and turn-to-turn insulation of the primary coil can be improved, and the overvoltage resistance is improved: the creepage distance between layers is increased, the interlayer insulation is improved, the wire turn line distance of the wire inlet end and the wire outlet end of the primary coil is increased, and the turn insulation is improved, so that the purpose of improving the overvoltage resistance of the primary coil is achieved.
Drawings
Fig. 1 is a schematic diagram of the overall structure of the primary winding of the voltage transformer coil of the present invention.
In the figure: 1-insulating framework, 2-insulating paper, 3-middle densely wound coil, 4-first and last turns of sparsely wound coil and 6-clapboard.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Referring to fig. 1, the present invention provides a technical solution: a winding method of a primary winding of a voltage transformer coil comprises an insulating framework 1.
The insulating framework 1 is sequentially wound with a plurality of layers of coils from inside to outside, the plurality of layers of coils are respectively a plurality of layers of close-wound coils 3 and two layers of first and last turns of loose-wound coils 4 from inside to outside, and a layer of interlayer insulating paper 2 is arranged between each coil and the insulating framework 1, between adjacent coils and outside the coils. Each layer of winding keeps a certain distance with the upper and lower edges of the insulating framework 1.
Wherein, the interlayer insulating paper 2 is fixedly connected with the coil through a double-sided adhesive tape. Thereby improving the structural strength between the coil and the interlayer insulation paper 2.
The winding is wound for one circle. The turn pitch of the close-wound turns 3 is 0.06 mm. The distance between the first and the last turns of the sparse winding coil 4 is 5 mm.
And a partition plate is used as a support between the first and last loose winding coils and the close winding coil, so that the uniform winding is ensured.
Further, 5mm distance is kept between the winding and the upper edge and the lower edge of the insulating framework.
The invention relates to a winding method of a primary winding of a voltage transformer coil, which is used for preparing the primary winding of the voltage transformer coil and comprises the following steps:
s1, manufacturing a winding: and selecting a single enameled wire with a proper wire diameter as a winding wire.
S2, winding a first layer of coil: and winding the wire from one end of the insulating framework 1 to the other end of the insulating framework through a parallel winding machine, keeping a 5mm distance between every two turns, and keeping a 5mm distance between the winding and the upper edge and the lower edge of the insulating framework 1 to form a first layer of coil.
And S3, adding a first layer of interlayer insulating paper 2 outside the first layer of coil.
S4, winding a second layer of coil: and winding the wire on the outer side of the interlayer insulating paper 2 by a parallel winding machine, keeping a 5mm distance between every two turns, and keeping a 5mm distance between the winding and the upper edge and the lower edge of the insulating framework 1 to form a second layer of coil.
S5, padding a layer of partition board 6 at the four corners of the outer side of the second layer coil, and adding the second layer of interlayer insulating paper 2 at the outer side.
S6, winding a third layer of coil: and winding the winding on the outer side of the interlayer insulating paper 2 by a parallel winding machine, keeping a 0.06mm distance between every two turns, and keeping a 5mm distance between the winding and the upper edge and the lower edge of the insulating framework 1 to form a third layer of coil.
S7, winding a fourth layer of coil: and winding the winding on the outer side of the interlayer insulating paper 2 by a parallel winding machine, keeping a 0.06mm distance between every two turns, and keeping a 5mm distance between the winding and the upper edge and the lower edge of the insulating framework 1 to form a third layer of coil.
And S8, and the like, until the winding of the fourth last coil is completed.
Winding a penultimate coil: the winding is wound on the outer side of the interlayer insulating paper 2 through a parallel winding machine, the distance between every two turns is kept to be 0.06mm, the distance between the winding and the upper edge and the lower edge of the insulating framework 1 is kept to be 5mm, a penultimate layer coil is formed, a layer of partition plate 6 is arranged at four corners of the outer side of the coil in a cushioning mode, and the second layer of interlayer insulating paper 2 is added on the outer side. At this point, the winding of all the close-wound coils 3 is completed.
S9, winding a penultimate coil: and winding the wire on the outer side of the interlayer insulating paper 2 by a parallel winding machine, keeping a 5mm distance between every two turns, and keeping a 5mm distance between the winding and the upper edge and the lower edge of the insulating framework 1 to form a penultimate layer coil, namely a first-turn and last-turn sparse winding coil 4.
S10, winding the last layer of coil: and winding the wire on the outer side of the interlayer insulating paper 2 by a parallel winding machine, keeping a 5mm distance between every two turns, and keeping a 5mm distance between the winding and the upper edge and the lower edge of the insulating framework 1 to form a final layer of coil, namely a layer of first and last turns of sparse winding coil 4.
In summary, in the winding method of the primary winding of the voltage transformer coil, the multilayer coils are sequentially wound on the insulating framework 1 from inside to outside, the multilayer coils are the multilayer densely wound coil 3 and the two layers of first and last turn sparse wound coils 4 from inside to outside, and the interlayer insulating paper layers 2 are respectively arranged between the coils and the insulating framework 1, between adjacent coils and on the outer sides of the coils, so that the interlayer insulation and turn-to-turn insulation of the primary coil are improved, and the overvoltage resistance is improved: the creepage distance between layers is increased, the interlayer insulation is improved, the wire turn line distance of the wire inlet end and the wire outlet end of the primary coil is increased, and the turn insulation is improved, so that the purpose of improving the overvoltage resistance of the primary coil is achieved. The problem of current voltage transformer primary coil suffer overvoltage impact and burn out is solved.
In addition, the primary winding of the voltage transformer coil is simple and convenient to operate, simple and easy to implement during manufacturing. The method is a perfect technical innovation on the basis of winding of the primary coil of the voltage transformer, namely, the primary coil winding arrangement process is improved, and the whole process scheme is simple and convenient to operate and is simple and feasible.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.
Claims (8)
1. The winding method of the primary winding of the voltage transformer coil is characterized by comprising the following steps: the primary winding of the voltage transformer coil comprises an insulating framework (1); a plurality of layers of coils are sequentially wound on the insulating framework (1) from inside to outside, the plurality of layers of coils are respectively a plurality of layers of close-wound coils (3) and two layers of first and last turn loose-wound coils (4) from inside to outside, and a layer of interlayer insulating paper (2) is arranged between each coil and the insulating framework (1), between adjacent coils and on the outer side of each coil; the method comprises the following steps:
s1, manufacturing a winding: selecting a single enameled wire with a proper wire diameter as a winding wire;
s2, winding a first layer of coil: winding a winding wire from one end of the insulating framework (1) to the other end through a parallel winding machine, keeping a 5mm distance between every two turns, and keeping a 5mm distance between the winding wire and the upper edge and the lower edge of the insulating framework (1) to form a first layer of coil;
s3, adding a first layer of interlayer insulating paper (2) on the outer side of the first layer of coil;
s4, winding a second layer of coil: winding the wire on the outer side of the interlayer insulating paper (2) through a parallel winding machine, keeping a 5mm distance between every two turns, and keeping a 5mm distance between the winding and the upper edge and the lower edge of the insulating framework (1) to form a second layer of coil;
s5, adding a second layer of interlayer insulating paper (2) on the outer side of the second layer of coil;
s6, winding a third layer of coil: winding the winding on the outer side of the interlayer insulating paper (2) through a parallel winding machine, keeping a 0.06mm distance between every two turns, and keeping a 5mm distance between the winding and the upper and lower edges of the insulating framework (1) to form a third layer of coil;
s7, winding a fourth layer of coil: winding the winding on the outer side of the interlayer insulating paper (2) through a parallel winding machine, keeping a 0.06mm distance between every two turns, and keeping a 5mm distance between the winding and the upper and lower edges of the insulating framework (1) to form a third layer of coil;
s8, repeating the steps until the last but one layer of coil is wound;
s9, winding a penultimate coil: winding the winding on the outer side of the interlayer insulating paper (2) through a parallel winding machine, keeping a 5mm distance between every two turns, and keeping a 5mm distance between the winding and the upper edge and the lower edge of the insulating framework (1) to form a penultimate coil;
s10, winding the last layer of coil: and winding the winding on the outer side of the interlayer insulating paper (2) through a parallel winding machine, keeping a 5mm distance between every two turns, and keeping a 5mm distance between the winding and the upper edge and the lower edge of the insulating framework (1) to form the final layer of coil.
2. The method for winding a primary winding of a coil of a voltage transformer of claim 1, wherein: the interlayer insulating paper (2) is fixedly connected with the coil through a double-sided adhesive tape.
3. The method for winding a primary winding of a coil of a voltage transformer of claim 1, wherein:
the turn pitch of the close-wound coils (3) is 0.06 mm;
the turn pitch of the first and last turn sparse winding coils (4) is 5 mm.
4. The voltage transformer coil primary winding of claim 2, wherein:
and a partition plate (6) is used as a support between the first and last loose winding coils (4) and the close winding coils (3), so that the uniform winding is ensured.
5. The method for winding a primary winding of a coil of a voltage transformer of claim 2, wherein: and 5mm distance is kept between the winding and the upper edge and the lower edge of the insulating framework.
6. The method for winding a primary winding of a coil of a voltage transformer of claim 1, wherein: the insulating paper (2) is fixedly connected with the coil through a double-sided adhesive tape.
7. The method for winding a primary winding of a coil of a voltage transformer of claim 1, wherein: the coil is formed by winding a plurality of winding wires made of enameled round copper wires.
8. The method for winding a primary winding of a coil of a voltage transformer of claim 7, wherein: many the tip welding of enameled round copper line is as an organic whole.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110077135.8A CN112885596A (en) | 2021-01-20 | 2021-01-20 | Winding method of primary winding of voltage transformer coil |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110077135.8A CN112885596A (en) | 2021-01-20 | 2021-01-20 | Winding method of primary winding of voltage transformer coil |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114005671A (en) * | 2021-11-24 | 2022-02-01 | 西北有色金属研究院 | A method of winding superconducting magnets by using uninsulated MgB2 wire |
| CN116053029A (en) * | 2022-11-30 | 2023-05-02 | 无锡富乐电子有限公司 | Transformer coil winding system based on flat wire and working method |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201051448Y (en) * | 2007-06-05 | 2008-04-23 | 中国工程物理研究院应用电子学研究所 | High-transformation-ratio conical winding |
| CN104465044A (en) * | 2013-09-17 | 2015-03-25 | 精量电子（深圳）有限公司 | Linear variable differential transformer and winding method thereof |
| CN105023746A (en) * | 2015-07-29 | 2015-11-04 | 厦门大一互科技有限公司 | Internal field intensity balancing method for medium-voltage mutual inductor |
| CN109767897A (en) * | 2019-03-20 | 2019-05-17 | 大连北方互感器集团有限公司 | Voltage transformer coil first winding and its winding method |
| CN209357580U (en) * | 2019-01-11 | 2019-09-06 | 许昌泰克电气有限公司 | Transformer anticorrosion resistance to shorting coil |
| CN209357576U (en) * | 2018-11-29 | 2019-09-06 | 浙江苏泊尔家电制造有限公司 | Transformer and cooking apparatus for cooking apparatus |
-
2021
- 2021-01-20 CN CN202110077135.8A patent/CN112885596A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201051448Y (en) * | 2007-06-05 | 2008-04-23 | 中国工程物理研究院应用电子学研究所 | High-transformation-ratio conical winding |
| CN104465044A (en) * | 2013-09-17 | 2015-03-25 | 精量电子（深圳）有限公司 | Linear variable differential transformer and winding method thereof |
| CN105023746A (en) * | 2015-07-29 | 2015-11-04 | 厦门大一互科技有限公司 | Internal field intensity balancing method for medium-voltage mutual inductor |
| CN209357576U (en) * | 2018-11-29 | 2019-09-06 | 浙江苏泊尔家电制造有限公司 | Transformer and cooking apparatus for cooking apparatus |
| CN209357580U (en) * | 2019-01-11 | 2019-09-06 | 许昌泰克电气有限公司 | Transformer anticorrosion resistance to shorting coil |
| CN109767897A (en) * | 2019-03-20 | 2019-05-17 | 大连北方互感器集团有限公司 | Voltage transformer coil first winding and its winding method |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114005671A (en) * | 2021-11-24 | 2022-02-01 | 西北有色金属研究院 | A method of winding superconducting magnets by using uninsulated MgB2 wire |
| CN114005671B (en) * | 2021-11-24 | 2022-12-27 | 西北有色金属研究院 | Adopts non-insulated MgB 2 Method for winding superconducting magnet by wire |
| CN116053029A (en) * | 2022-11-30 | 2023-05-02 | 无锡富乐电子有限公司 | Transformer coil winding system based on flat wire and working method |
| CN116053029B (en) * | 2022-11-30 | 2024-06-28 | 无锡富乐电子有限公司 | Transformer coil winding system based on flat wire and working method |
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Application publication date: 20210601 |