CN103594155A - Local self-adhesive paint layer low-self-adhesive-layer transposition wire for transformer and production method - Google Patents
Local self-adhesive paint layer low-self-adhesive-layer transposition wire for transformer and production method Download PDFInfo
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- CN103594155A CN103594155A CN201310575694.7A CN201310575694A CN103594155A CN 103594155 A CN103594155 A CN 103594155A CN 201310575694 A CN201310575694 A CN 201310575694A CN 103594155 A CN103594155 A CN 103594155A
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Abstract
The invention relates to a local self-adhesive paint layer low-self-adhesive-layer transposition wire for a transformer and a production method, and belongs to the technical field of transformer winding wires. According to the technical scheme, each copper strap wire (1) is externally provided with an acetal paint layer (2) to form an enamel-cover wire. The cross section of each enamel-cover wire is of a rectangular structure, the outer sides of the two long edge of each cross section are painted with local self-adhesive paint layers (3), and the outer sides of the two short edges of each cross section are not painted with the local self-adhesive paint layers (3). A wire bundle is formed by the seven enamel-cover wires, and a paper insulation layer (4) is arranged outside the wire bundle. According to the local self-adhesive paint layer low-self-adhesive-layer transposition wire for the transformer and the production method, the local self-adhesive paint layers are adopted, and only the contact faces of the enamel-cover wires of the paper insulation enamel-cover transposition wire are painted with the local self-adhesive paint layers. According to the transposition wire made of the enamel-cover wires, local discharge possibly caused by self-adhesive paint is completely avoided, adjustment work on the axial height of a coil after winding processing is reduced, the winding space factors are improved, meanwhile, the use quantity of the self-adhesive paint is reduced, the cost of the self-adhesive enamel-cover wires is reduced, and a winding can have the good cooling effect.
Description
Technical field
The present invention relates to the low self-adhesive layer transposed conductor of local self-adhesion enamelled coating and production method for a kind of transformer, for making Transformer Winding, belong to Transformer Winding lead technology field.
Background technology
High-performance self-adhesive enameled wire is to take acetal enameled sheet wire as basis, outer painting self-adhesion paint forms, it is the ideal material of producing self-adhesion enameled transposition conductor, in electromagnetic wire industry, mostly the self-adhesion paint film of self-adhesive enameled wire product is all to cover wire at present, in transformer coil solidification process, self-adhesion paint can flow to the space between R angle, form one deck self-adhesive layer and fill up the gap between single cord fillet, this part self-adhesion enamelled coating does not have adhesive effect, not only can increase the overall dimension of wire, affect the heat radiation of wire, also likely form the bubble that can not be full of with oil and cause the partial discharge under high voltage.Along with the continuous increase of design of transformer capacity and electric pressure, also more and more higher to the requirement of the heat dispersion of tack composite conductor and electric property, research and develop, manufacture modified form self-adhesive enameled wire material extremely urgent.The self-adhesion enameled transposition conductor that background technology is produced can not meet the requirement of Transformer Winding.
Summary of the invention
The object of the invention is to provide the low self-adhesive layer transposed conductor of local self-adhesion enamelled coating and production method for a kind of transformer, reduced the adjustment work on coil axial height after coiling is processed, improved the space factor of winding, reduced the consumption of self-adhesion paint simultaneously, reduced self-adhesive enameled wire cost, make winding there is better cooling effect, solve the problem existing in background technology.
Technical scheme of the present invention is:
With the low self-adhesive layer transposed conductor of local self-adhesion enamelled coating, comprise copper strap wire, acetal enamelled coating, local self-adhesion enamelled coating and paper insulation layer, every copper strap wire outside is provided with acetal enamelled coating, is enamelled wire; Enamelled wire cross section is rectangular configuration, and on cross section, two long outsides of (wide face) are on one side coated with local self-adhesion enamelled coating, and on cross section, the outside on two shorter one side (leptoprosopy) is not coated with local self-adhesion enamelled coating; Seven enamelled wire arranged, three enamelled wire stacked are one group of wire, two groups of arrangements of conductors are arranged, an enamelled wire is set above two groups of wires, the local self-adhesion enamelled coating surface of enamelled wire contacts, and seven enamelled wires form bundle conductor, and the outside of bundle conductor is provided with paper insulation layer; The stress R of copper strap wire when plastic elongation rate is 0.2%
p0.2reach 240-260Mpa, and resistivity is less than 0.017241 Ω mm
2/ m, percentage elongation is greater than 18%.
Described two groups of arrangements of conductors are arranged, between two groups of wires, are provided with self-adhesion enamelled coating, and two groups of wires are bonded together.
A production method for the low self-adhesive layer transposed conductor of local self-adhesion enamelled coating for transformer, comprises following processing step: 1. on copper strap wire, being coated with acetal enamelled coating, is enamelled wire; The stress R of copper strap wire when plastic elongation rate is 0.2%
p0.2reach 240-260Mpa, and resistivity is less than 0.017241 Ω mm
2/ m, percentage elongation is greater than 18%; 2. enamelled wire cross section is rectangular configuration, and on cross section, two long outsides of (wide face) are on one side coated with local self-adhesion enamelled coating, and on cross section, the outside on two shorter one side (leptoprosopy) is not coated with local self-adhesion enamelled coating; Seven enamelled wire arranged, three enamelled wire stacked are one group of wire, two groups of arrangements of conductors are arranged, above two groups of wires, an enamelled wire is set, 3. the local self-adhesion enamelled coating surface of enamelled wire is contacted, replace and make, seven enamelled wires form bundle conductor, and at the outside of bundle conductor full packaged insulation materials ply of paper, on take-up reel, carry out rolling, become finished product.
The invention has the beneficial effects as follows: the present invention adopts local self-adhesion enamelled coating, the one side that paper insulation enameled transposition conductor only contacts at enamelled wire is coated with local self-adhesion enamelled coating, with this kind of thread transposed conductor of enamel-cover, avoided the partial discharge that may be produced by self-adhesion paint completely, and reduced coiling and processed the adjustment work on rear coil axial height, improved the space factor of winding, the consumption that has simultaneously reduced self-adhesion paint, has reduced self-adhesive enameled wire cost, makes winding have better cooling effect.
Accompanying drawing explanation
Fig. 1 is product cross section schematic diagram of the present invention;
In figure: copper strap wire 1, acetal enamelled coating 2, local self-adhesion enamelled coating 3, paper insulation layer 4, self-adhesion enamelled coating 5.
Embodiment
Below in conjunction with accompanying drawing, by embodiment, the invention will be further described.
With the low self-adhesive layer transposed conductor of local self-adhesion enamelled coating, comprise copper strap wire 1, acetal enamelled coating 2, local self-adhesion enamelled coating 3 and paper insulation layer 4, every copper strap wire outside is provided with acetal enamelled coating, is enamelled wire; Enamelled wire cross section is rectangular configuration, and on cross section, two long outsides of (wide face) are on one side coated with local self-adhesion enamelled coating, and on cross section, the outside on two shorter one side (leptoprosopy) is not coated with local self-adhesion enamelled coating; Seven enamelled wire arranged, three enamelled wire stacked are one group of wire, two groups of arrangements of conductors are arranged, an enamelled wire is set above two groups of wires, the local self-adhesion enamelled coating surface of enamelled wire contacts, and seven enamelled wires form bundle conductor, and the outside of bundle conductor is provided with paper insulation layer; The stress R of copper strap wire when plastic elongation rate is 0.2%
p0.2reach 240-260Mpa, and resistivity is less than 0.017241 Ω mm
2/ m, percentage elongation is greater than 18%.
Described two groups of arrangements of conductors are arranged, between two groups of wires, are provided with self-adhesion enamelled coating 5, and two groups of wires are bonded together.
A production method for the low self-adhesive layer transposed conductor of local self-adhesion enamelled coating for transformer, comprises following processing step: 1. on copper strap wire, being coated with acetal enamelled coating, and suppressing hardness, is enamelled wire; The stress R of copper strap wire when plastic elongation rate is 0.2%
p0.2reach 240-260Mpa, and resistivity is less than 0.017241 Ω mm
2/ m, percentage elongation is greater than 18%; 2. enamelled wire cross section is rectangular configuration, and on cross section, two long outsides of (wide face) are on one side coated with local self-adhesion enamelled coating, and on cross section, the outside on two shorter one side (leptoprosopy) is not coated with local self-adhesion enamelled coating; Seven enamelled wire arranged, three enamelled wire stacked are one group of wire, two groups of arrangements of conductors are arranged, above two groups of wires, an enamelled wire is set, 3. the local self-adhesion enamelled coating surface of enamelled wire is contacted, replace and make, seven enamelled wires form bundle conductor, and at the outside of bundle conductor full packaged insulation materials ply of paper, on take-up reel, carry out rolling, become finished product.
In production process, guarantee the stability of distribution boundary explicitly and paint film distribution and the thickness of local self-adhesion enamelled coating, for shorter one side of rectangular configuration, enamelled wire cross section (leptoprosopy) designing requirement of not painting, during japanning, self-adhesion paint keeps being coated in uniformly under constant pressure, constant flow rate, constant speed enamelled wire cross section rectangular configuration long (wide face) on one side.
Claims (3)
1. the low self-adhesive layer transposed conductor of local self-adhesion enamelled coating for transformer, is characterized in that: comprise copper strap wire (1), acetal enamelled coating (2), local self-adhesion enamelled coating (3) and paper insulation layer (4), every copper strap wire outside is provided with acetal enamelled coating, is enamelled wire; Enamelled wire cross section is rectangular configuration, and on cross section, two long outsides are on one side coated with local self-adhesion enamelled coating, and on cross section, the outside on two shorter one side is not coated with local self-adhesion enamelled coating; Seven enamelled wire arranged, three enamelled wire stacked are one group of wire, two groups of arrangements of conductors are arranged, an enamelled wire is set above two groups of wires, the local self-adhesion enamelled coating surface of enamelled wire contacts, and seven enamelled wires form bundle conductor, and the outside of bundle conductor is provided with paper insulation layer; The stress R of copper strap wire when plastic elongation rate is 0.2%
p0.2reach 240-260Mpa, and resistivity is less than 0.017241 Ω mm
2/ m, percentage elongation is greater than 18%.
2. the low self-adhesive layer transposed conductor of local self-adhesion enamelled coating for a kind of transformer according to claim 1, is characterized in that described two groups of arrangements of conductors layout, is provided with self-adhesion enamelled coating (5) between two groups of wires, and two groups of wires are bonded together.
3. a production method for the low self-adhesive layer transposed conductor of local self-adhesion enamelled coating for transformer, is characterized in that comprising following processing step: 1. on copper strap wire, being coated with acetal enamelled coating, is enamelled wire; The stress R of copper strap wire when plastic elongation rate is 0.2%
p0.2reach 240-260Mpa, and resistivity is less than 0.017241 Ω mm
2/ m, percentage elongation is greater than 18%; 2. enamelled wire cross section is rectangular configuration, and on cross section, two long outsides are on one side coated with local self-adhesion enamelled coating, and on cross section, the outside on two shorter one side is not coated with local self-adhesion enamelled coating; Seven enamelled wire arranged, three enamelled wire stacked are one group of wire, two groups of arrangements of conductors are arranged, above two groups of wires, an enamelled wire is set, 3. the local self-adhesion enamelled coating surface of enamelled wire is contacted, replace and make, seven enamelled wires form bundle conductor, and at the outside of bundle conductor full packaged insulation materials ply of paper, on take-up reel, carry out rolling, become finished product.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310575694.7A CN103594155A (en) | 2013-11-18 | 2013-11-18 | Local self-adhesive paint layer low-self-adhesive-layer transposition wire for transformer and production method |
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| CN201310575694.7A CN103594155A (en) | 2013-11-18 | 2013-11-18 | Local self-adhesive paint layer low-self-adhesive-layer transposition wire for transformer and production method |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106229029A (en) * | 2016-08-30 | 2016-12-14 | 无锡统力电工股份有限公司 | A kind of transformator rare earth-boron copper alloy transposed conductor and preparation method thereof |
| CN106448836A (en) * | 2016-12-06 | 2017-02-22 | 保定天威线材制造有限公司 | Partial self-adhesive enameling layer high temperature and high adhesive strength transposed wire and producing method thereof |
| CN106531292A (en) * | 2016-12-06 | 2017-03-22 | 保定天威线材制造有限公司 | High temperature high bonding strength transposed lead and manufacturing process thereof |
| CN113393974A (en) * | 2021-06-04 | 2021-09-14 | 无锡统力电工有限公司 | Preparation method of high-thermal-conductivity self-adhesive enameled transposed conductor |
| CN114255909A (en) * | 2020-09-22 | 2022-03-29 | 阿斯塔导线有限公司 | Manufacturing method of heat-resistant grade 140 transposed conductor for vegetable oil transformer |
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| CN201311826Y (en) * | 2008-11-05 | 2009-09-16 | 无锡统力电工有限公司 | Broadside double-sided self-adhered transposed conductor |
| CN101673588A (en) * | 2009-09-28 | 2010-03-17 | 无锡锡洲电磁线有限公司 | Single-side self-bonding acetal enameled kufil-clad transposed semi-hard conductor without paper insulation |
| CN201503716U (en) * | 2009-08-04 | 2010-06-09 | 刘松 | Single side enameled self-adhesive transposition wire |
| JP2012193417A (en) * | 2011-03-17 | 2012-10-11 | Hitachi Cable Ltd | Soft dilute-copper alloy wire, soft dilute-copper alloy twisted wire and insulated wire, coaxial cable and composite cable using the same |
| CN203535994U (en) * | 2013-11-18 | 2014-04-09 | 保定天威集团有限公司 | Local self-adhesive paint layer low self-adhesive layer transposed conductor for transformer |
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2013
- 2013-11-18 CN CN201310575694.7A patent/CN103594155A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN201311826Y (en) * | 2008-11-05 | 2009-09-16 | 无锡统力电工有限公司 | Broadside double-sided self-adhered transposed conductor |
| CN201503716U (en) * | 2009-08-04 | 2010-06-09 | 刘松 | Single side enameled self-adhesive transposition wire |
| CN101673588A (en) * | 2009-09-28 | 2010-03-17 | 无锡锡洲电磁线有限公司 | Single-side self-bonding acetal enameled kufil-clad transposed semi-hard conductor without paper insulation |
| JP2012193417A (en) * | 2011-03-17 | 2012-10-11 | Hitachi Cable Ltd | Soft dilute-copper alloy wire, soft dilute-copper alloy twisted wire and insulated wire, coaxial cable and composite cable using the same |
| CN203535994U (en) * | 2013-11-18 | 2014-04-09 | 保定天威集团有限公司 | Local self-adhesive paint layer low self-adhesive layer transposed conductor for transformer |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106229029A (en) * | 2016-08-30 | 2016-12-14 | 无锡统力电工股份有限公司 | A kind of transformator rare earth-boron copper alloy transposed conductor and preparation method thereof |
| CN106448836A (en) * | 2016-12-06 | 2017-02-22 | 保定天威线材制造有限公司 | Partial self-adhesive enameling layer high temperature and high adhesive strength transposed wire and producing method thereof |
| CN106531292A (en) * | 2016-12-06 | 2017-03-22 | 保定天威线材制造有限公司 | High temperature high bonding strength transposed lead and manufacturing process thereof |
| CN114255909A (en) * | 2020-09-22 | 2022-03-29 | 阿斯塔导线有限公司 | Manufacturing method of heat-resistant grade 140 transposed conductor for vegetable oil transformer |
| CN114255909B (en) * | 2020-09-22 | 2023-08-18 | 阿斯塔导线有限公司 | Manufacturing method of heat-resistant grade 140 transposed conductor for vegetable oil transformer |
| CN113393974A (en) * | 2021-06-04 | 2021-09-14 | 无锡统力电工有限公司 | Preparation method of high-thermal-conductivity self-adhesive enameled transposed conductor |
| CN113393974B (en) * | 2021-06-04 | 2022-07-26 | 无锡统力电工有限公司 | Preparation method of high-thermal-conductivity self-adhesion enameled transposed conductor |
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Application publication date: 20140219 |
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