CN203535994U - Local self-adhesive paint layer low self-adhesive layer transposed conductor for transformer - Google Patents
Local self-adhesive paint layer low self-adhesive layer transposed conductor for transformer Download PDFInfo
- Publication number
- CN203535994U CN203535994U CN201320726961.1U CN201320726961U CN203535994U CN 203535994 U CN203535994 U CN 203535994U CN 201320726961 U CN201320726961 U CN 201320726961U CN 203535994 U CN203535994 U CN 203535994U
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- self
- wire
- adhesive
- local
- enamelled
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- Coils Of Transformers For General Uses (AREA)
- Insulated Conductors (AREA)
Abstract
The utility model relates to a local self-adhesive paint layer low self-adhesive layer transposed conductor for a transformer, and belongs to the technology field of transformer winding wires. The technical scheme is characterized in that, each copper flat wire (1) is wrapped in an acetal paint layer (2), namely, an enameled wire. The cross section of the enameled wire is in the structure of a rectangle, the longer sides of the cross section are coated with local self-adhesive paint layers (3), and the shorter sides of the cross section are not coated with local self-adhesive paint layers. Seven enameled wires form a conduct strand, and the exterior of the conduct strand is provided with a paper insulation layer (4). The local self-adhesive paint layer low self-adhesive layer transposed conductor is advantageous in that, the local self-adhesive paint layer is used, a paper insulation enameled transposed conductor is coated with the local self-adhesive paint layer only at the contact surfaces of the enameled wires. By the transposed conductor manufactured via the enameled wires, local discharge possibly generated by self-adhesive paint can be completely prevented, adjustment in an axial height of coils after winding is reduced, the space factor of the windings is improved, the consumption of the self-adhesive paint is reduced, the cost of a self-adhesive enameled wire is reduced, and a better cooling effect of the windings is provided.
Description
Technical field
The utility model relates to the low self-adhesive layer transposed conductor of local self-adhesion enamelled coating 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 enameled transposition conductor, in current domestic electromagnetic wire industry, mostly the self-adhesion paint film of self-adhesive enameled wire product is all to cover wire, 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.
Utility model content
The utility model object is to provide the low self-adhesive layer transposed conductor of local self-adhesion enamelled coating 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.
The technical solution of the utility model is:
The low self-adhesive layer transposed conductor of local self-adhesion enamelled coating 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 the long outside of (wide face) on one side, two, cross section is coated with local self-adhesion enamelled coating, and the outside on two shorter one side, cross section (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.
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, made winding there is better cooling effect.
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, self-adhesion enamelled coating 5.
Embodiment
Below in conjunction with accompanying drawing, by embodiment, the utility model is described in further detail.
The low self-adhesive layer transposed conductor of local self-adhesion enamelled coating 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 the long outside of (wide face) on one side, two, cross section is coated with local self-adhesion enamelled coating, and the outside on two shorter one side, cross section (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.
Production method of the present utility model, 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 the long outside of (wide face) on one side, two, cross section is coated with local self-adhesion enamelled coating, and the outside on two shorter one side, cross section (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 long outside on one side, two, cross section is coated with local self-adhesion enamelled coating, and the outside on two shorter one side, cross section 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.
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. the low self-adhesive layer transposed conductor of local self-adhesion enamelled coating for a kind of transformer according to claim 1 and 2, 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 |
|---|---|---|---|
| CN201320726961.1U CN203535994U (en) | 2013-11-18 | 2013-11-18 | Local self-adhesive paint layer low self-adhesive layer transposed conductor for transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320726961.1U CN203535994U (en) | 2013-11-18 | 2013-11-18 | Local self-adhesive paint layer low self-adhesive layer transposed conductor for transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203535994U true CN203535994U (en) | 2014-04-09 |
Family
ID=50422176
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320726961.1U Expired - Fee Related CN203535994U (en) | 2013-11-18 | 2013-11-18 | Local self-adhesive paint layer low self-adhesive layer transposed conductor for transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203535994U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103594155A (en) * | 2013-11-18 | 2014-02-19 | 保定天威线材制造有限公司 | Local self-adhesive paint layer low-self-adhesive-layer transposition wire for transformer and production method |
| CN108962451A (en) * | 2018-07-26 | 2018-12-07 | 江苏中容电气有限公司 | A kind of EHV transformer folder screen combined shifting lead |
-
2013
- 2013-11-18 CN CN201320726961.1U patent/CN203535994U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103594155A (en) * | 2013-11-18 | 2014-02-19 | 保定天威线材制造有限公司 | Local self-adhesive paint layer low-self-adhesive-layer transposition wire for transformer and production method |
| CN108962451A (en) * | 2018-07-26 | 2018-12-07 | 江苏中容电气有限公司 | A kind of EHV transformer folder screen combined shifting lead |
| CN108962451B (en) * | 2018-07-26 | 2024-01-09 | 江苏中容电气有限公司 | Screen clamping combined transposed conductor for ultrahigh voltage transformer |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140409 Termination date: 20161118 |