CN203552747U - Transformer paper-insulated enamelled combination wire with partial self-adhesive enamelled coatings - Google Patents
Transformer paper-insulated enamelled combination wire with partial self-adhesive enamelled coatings Download PDFInfo
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- CN203552747U CN203552747U CN201320725455.0U CN201320725455U CN203552747U CN 203552747 U CN203552747 U CN 203552747U CN 201320725455 U CN201320725455 U CN 201320725455U CN 203552747 U CN203552747 U CN 203552747U
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- enamelled
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- enamelled coating
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Abstract
The utility model relates to a transformer paper-insulated enamelled combination wire with partial self-adhesive enamelled coatings, belonging to the technical field of transformer winding wires. According to the technical scheme, each copper flat wire (1) is coated by an acetal enamelled coating (2) to form an enamelled wire, the cross section of which is a rectangular structure; the outer surface of one longer side of the cross section is coated by a partial self-adhesive enamelled coating (3), and the outer surfaces of two shorter sides and the other longer side of the cross section are not coated by the partial self-adhesive enamelled coating; two said enamelled wires are arranged vertically, and the surfaces coated by the partial self-adhesive enamelled coatings contact with each other, so that the two enamelled wires form a wire strand; and a paper insulation layer (4) is arranged around the wire strand. The wire completely avoids partial discharge that can be generated by self-adhesive enamel, reduces adjustment work in the axial height of a coil after winding processing, improves the space factor of a winding, and reduces costs of self-adhesive enamelled wires. The voltage-proof level of a one-sided enamel coating can reach over 5000 V, so that windings have better cooling effects.
Description
Technical field
The utility model relates to local self-adhesion enamelled coating paper insulation enamel-cover assemble line for a kind of transformer, for making Transformer Winding, belongs 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 enamel-cover composite 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.Continuous increase along with design of transformer capacity and electric pressure, requirement to the heat dispersion of tack composite conductor and electric property is also more and more higher, research and develop, manufacture modified form self-adhesive enameled wire material extremely urgent, the enamel-cover assemble line that background technology is produced can not meet the requirement of Transformer Winding.
Utility model content
The utility model object is to provide local self-adhesion enamelled coating paper insulation enamel-cover assemble line for a kind of transformer, 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, more than one side paint film proof voltage grade can reach 5000v, make winding there is better cooling effect, solve the problem existing in background technology.
The technical solution of the utility model is:
A local self-adhesion enamelled coating paper insulation enamel-cover assemble line for transformer, comprises copper strap wire, acetal enamelled coating, local self-adhesion enamelled coating and paper insulation layer, and 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, long outside of (wide face) is on one side coated with local self-adhesion enamelled coating, and the long outside of (wide face) on one side of two shorter one side, cross section (leptoprosopy) and another one is not coated with local self-adhesion enamelled coating; Two enamelled wires layout that is arranged above and below, the surface that two enamelled wires scribble local self-adhesion enamelled coating contacts, and two enamelled wires form bundle conductors, 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%.
The beneficial effects of the utility model are: the utility model 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, reduced the consumption of self-adhesion paint simultaneously, reduced self-adhesive enameled wire cost, one side paint film proof voltage grade makes winding have better cooling effect more than can reaching 5000v.
Accompanying drawing explanation
Fig. 1 is the utility model product cross section schematic diagram;
In figure: copper strap wire 1, acetal enamelled coating 2, local self-adhesion enamelled coating 3, paper insulation layer 4.
Embodiment
Below in conjunction with accompanying drawing, by embodiment, the utility model is described in further detail.
A local self-adhesion enamelled coating paper insulation enamel-cover assemble line for transformer, comprises copper strap wire 1, acetal enamelled coating 2, local self-adhesion enamelled coating 3 and paper insulation layer 4, and 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, long outside of (wide face) is on one side coated with local self-adhesion enamelled coating, and the long outside of (wide face) on one side of two shorter one side, cross section (leptoprosopy) and another one is not coated with local self-adhesion enamelled coating; Two enamelled wires layout that is arranged above and below, the surface that two enamelled wires scribble local self-adhesion enamelled coating contacts, and two enamelled wires form bundle conductors, 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%.
Production method of the present utility model, 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, long outside of (wide face) is on one side coated with local self-adhesion enamelled coating, and the long outside of (wide face) on one side of two shorter one side, cross section (leptoprosopy) and another one is not coated with local self-adhesion enamelled coating; Two enamelled wires layout that is arranged above and below, the surface that two enamelled wires scribble local self-adhesion enamelled coating contacts; 3. the local self-adhesion enamelled coating surface of enamelled wire is contacted, replace and make, two enamelled wires form bundle conductor, and at the outside of bundle conductor full packaged insulation materials ply of paper, carry out rolling on take-up reel, 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 (2)
1. a local self-adhesion enamelled coating paper insulation enamel-cover assemble line 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, long outside is on one side coated with local self-adhesion enamelled coating, and the long outside on one side of shorter one side, two, cross section and another one is not coated with local self-adhesion enamelled coating; Two enamelled wires layout that is arranged above and below, the surface that two enamelled wires scribble local self-adhesion enamelled coating contacts, and two enamelled wires form bundle conductors, and the outside of bundle conductor is provided with paper insulation layer.
2. local self-adhesion enamelled coating paper insulation enamel-cover assemble line for a kind of transformer according to claim 1, is characterized in that 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%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320725455.0U CN203552747U (en) | 2013-11-18 | 2013-11-18 | Transformer paper-insulated enamelled combination wire with partial self-adhesive enamelled coatings |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320725455.0U CN203552747U (en) | 2013-11-18 | 2013-11-18 | Transformer paper-insulated enamelled combination wire with partial self-adhesive enamelled coatings |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203552747U true CN203552747U (en) | 2014-04-16 |
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ID=50470828
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320725455.0U Expired - Fee Related CN203552747U (en) | 2013-11-18 | 2013-11-18 | Transformer paper-insulated enamelled combination wire with partial self-adhesive enamelled coatings |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203552747U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103594163A (en) * | 2013-11-18 | 2014-02-19 | 保定天威线材制造有限公司 | Local self-adhesive paint layer paper insulation enamel-cover combination wire for transformer and production method |
-
2013
- 2013-11-18 CN CN201320725455.0U patent/CN203552747U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103594163A (en) * | 2013-11-18 | 2014-02-19 | 保定天威线材制造有限公司 | Local self-adhesive paint layer paper insulation enamel-cover combination wire for transformer and production method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140416 Termination date: 20141118 |
|
| EXPY | Termination of patent right or utility model |