CN201449775U - Paper insulated self-adhesive acetal enamel-cover copper-silver alloy transposed semihard conducting wire - Google Patents
Paper insulated self-adhesive acetal enamel-cover copper-silver alloy transposed semihard conducting wire Download PDFInfo
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- CN201449775U CN201449775U CN 200920040091 CN200920040091U CN201449775U CN 201449775 U CN201449775 U CN 201449775U CN 200920040091 CN200920040091 CN 200920040091 CN 200920040091 U CN200920040091 U CN 200920040091U CN 201449775 U CN201449775 U CN 201449775U
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- conducting wire
- silver alloy
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Abstract
The utility model relates to a paper insulated self-adhesive acetal enamel-cover copper-silver alloy transposed semihard conducting wire, which achieves excellent electric behavior, mechanical behavior and thermal bonding strength; has no obvious variation of yield strength after long term high temperature operation; and can guarantee the safety of long term high temperature operation. The conducting wire comprises an enamel-covered wire and an insulating paper; the insulating paper covers the enamel-covered wire; the enamel-covered wire comprises a metal conductor and a paint film; the paint film layer comprises a base paint layer and a finishing paint layer; the base paint layer is coated on the metal conductor; and the finishing paint layer is coated on the base paint layer. The conducting wire is characterized in that: the metal conductor is copper-silver alloy.
Description
(1) technical field
The utility model relates to power transformer transposed conductor technical field, is specially a kind of novel paper-insulating copper-silver alloy transposition semi-hard conducting wire wrapped by self-sticking ethylidene ether lacquer.
(2) background technology
Present power transformer paper-insulating copper-silver alloy transposition semi-hard conducting wire wrapped by self-sticking ethylidene ether lacquer, yield strength σ 0.2 〉=120N/mm
2, the highest 260N/mm that is no more than
2Under the power transformer normal operation, the ambient temperature of transformer is approximately 98 ℃～105 ℃, China's high pressure and the EHV transformer main cause that is damaged is that winding deformation causes short circuit, and the main cause of winding deformation is through behind the long-play, the intensity of coil can not satisfy the design and operation requirement, causes coil can't bear short-circuit impact power when running into short circuit, and causes the coil gross distortion.In addition, carry out seeing Fig. 2 when wrapped that its outermost layer 6 and innermost layer 7 adopt overlapping wrapped, all the other intermediate layers 8 to adopt the wrapped forms in gaps with the paper bag copper strap wire, complex structure, the Transformer Winding space availability ratio is low, and volume of transformer is big.
(3) utility model content
At the problems referred to above, the utility model provides a kind of novel paper-insulating copper-silver alloy transposition semi-hard conducting wire wrapped by self-sticking ethylidene ether lacquer, it has good electric property and mechanical performance and good heat bonding intensity, its yield strength does not have obvious variation after long-time hot operation, has guaranteed the fail safe of long term high temperature operation.
A kind of novel paper-insulating copper-silver alloy transposition semi-hard conducting wire wrapped by self-sticking ethylidene ether lacquer, its technical scheme is such: it comprises enamelled wire and insulating paper, described insulating paper is wrapped in described enamelled wire outside, described enamelled wire comprises metallic conductor and paint film, described paint film layer comprises basic enamelled coating and top coat layer, described basic enamelled coating is coated on described metallic conductor outside, and described top coat layer is coated on described basic enamelled coating outside, it is characterized in that: described metallic conductor is the Kufil conductor.
It is further characterized in that: in the described Kufil conductor, silver content is 0.8～2 ‰; Described basic enamelled coating is an acetal paint; Described top coat layer is the self-adhesion lacquer; The quantity of enamelled wire described in the transposed conductor is determined according to actual instructions for use.
The utility model paper-insulating copper-silver alloy transposition semi-hard conducting wire wrapped by self-sticking ethylidene ether lacquer, it adopts Kufil to replace oxygen-free copper conductor in the past, the yield strength R of Kufil conductor
P0.2〉=300N/mm
2Has the favorable conductive thermal conductivity, can improve the radiating effect of coil, reach the purpose that improves the coil working temperature, the coil of employing the utility model paper-wrapped copper-silver alloy sheet wire coiling can be applicable to the transformer of temperature rise, allow transformer 80 ℃～150 ℃ long-time overload operations of high temperature, and mechanical performance does not descend.
(4) description of drawings
Fig. 1 is the utility model paper-insulating copper-silver alloy transposition semi-hard conducting wire wrapped by self-sticking ethylidene ether lacquer structural representation;
Fig. 2 is the structure enlarged diagram of enamelled wire 5 among Fig. 1;
Fig. 3 is the wrapped structure of a semi-hard conducting wire of guaranteeing replacement of paper insulation self-adhesion acetal paint in the past;
Fig. 4 is the wrapped structure of this paper-insulating copper-silver alloy transposition semi-hard conducting wire wrapped by self-sticking ethylidene ether lacquer.
(5) embodiment
See Fig. 1, the utility model comprises enamelled wire 5 and insulating paper 1, insulating paper 1 is wrapped in enamelled wire 5 outsides, enamelled wire 5 comprises metallic conductor 2 and paint film, paint film layer comprises basic enamelled coating 3 and top coat layer 4, base enamelled coating 3 is coated on metallic conductor 2 outsides, and top coat layer 4 is coated on basic enamelled coating 3 outsides, and metallic conductor 2 is the Kufil conductor.In the Kufil conductor 2, silver content is 0.8～2 ‰; Base enamelled coating 3 is an acetal paint; Top coat layer 4 is the self-adhesion lacquer; The quantity of enamelled wire is determined according to actual instructions for use in the transposed conductor.
The utility model paper-insulating copper-silver alloy transposition semi-hard conducting wire wrapped by self-sticking ethylidene ether lacquer, its metallic conductor adopts Kufil to make, and adopts up-drawing method continuous casting---continuous extruding technology production, has improved the plasticity of metal, eliminate casting flaw, crystallization again takes place, change the metal structure structure, the inner crystal grain of refinement, ampacity and current density have been improved, thereby improve the electric property and the mechanical performance of metal, and dwindled the cross section, reduced overall dimension; 20 ℃ of resistivity of Kufil conductor≤0.016903～0.017540 Ω mm
2/ m; Yield strength R
P0.2〉=300N/mm
2, and not having significant change 80 ℃～150 ℃ long-play yield strengths, its recrystallization temperature and hot mastication temperature height have the favorable conductive heat conductivility, can improve the radiating effect of coil.
The wrapped structure of the utility model paper-insulating copper-silver alloy transposition semi-hard conducting wire wrapped by self-sticking ethylidene ether lacquer once is described below: when using the utility model paper-wrapped copper-silver alloy sheet wire wrapped, its outermost layer 6 adopts self-locking wrapped, and all the other each layers 8 adopt opposite joint wrapped, see Fig. 3.Adopt this wrapped structure, its structure is compact more, has improved the Transformer Winding space availability ratio, reduces volume of transformer.
Claims (3)
1. novel paper-insulating copper-silver alloy transposition semi-hard conducting wire wrapped by self-sticking ethylidene ether lacquer, it comprises enamelled wire and insulating paper, described insulating paper is wrapped in described enamelled wire outside, described enamelled wire comprises metallic conductor and paint film, described paint film layer comprises basic enamelled coating and top coat layer, described basic enamelled coating is coated on described metallic conductor outside, and described top coat layer is coated on described basic enamelled coating outside, it is characterized in that: described metallic conductor is the Kufil conductor.
2. a kind of novel paper-insulating copper-silver alloy transposition semi-hard conducting wire wrapped by self-sticking ethylidene ether lacquer according to claim 1 is characterized in that: described basic enamelled coating is an acetal paint.
3. a kind of novel paper-insulating copper-silver alloy transposition semi-hard conducting wire wrapped by self-sticking ethylidene ether lacquer according to claim 2 is characterized in that: described top coat layer is the self-adhesion lacquer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200920040091 CN201449775U (en) | 2009-04-10 | 2009-04-10 | Paper insulated self-adhesive acetal enamel-cover copper-silver alloy transposed semihard conducting wire |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200920040091 CN201449775U (en) | 2009-04-10 | 2009-04-10 | Paper insulated self-adhesive acetal enamel-cover copper-silver alloy transposed semihard conducting wire |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201449775U true CN201449775U (en) | 2010-05-05 |
Family
ID=42554497
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200920040091 Expired - Lifetime CN201449775U (en) | 2009-04-10 | 2009-04-10 | Paper insulated self-adhesive acetal enamel-cover copper-silver alloy transposed semihard conducting wire |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201449775U (en) |
-
2009
- 2009-04-10 CN CN 200920040091 patent/CN201449775U/en not_active Expired - Lifetime
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20100505 |
|
| CX01 | Expiry of patent term |