CN101673588A - Single-side self-bonding acetal enameled kufil-clad transposed semi-hard conductor without paper insulation - Google Patents
Single-side self-bonding acetal enameled kufil-clad transposed semi-hard conductor without paper insulation Download PDFInfo
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- CN101673588A CN101673588A CN200910233911A CN200910233911A CN101673588A CN 101673588 A CN101673588 A CN 101673588A CN 200910233911 A CN200910233911 A CN 200910233911A CN 200910233911 A CN200910233911 A CN 200910233911A CN 101673588 A CN101673588 A CN 101673588A
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Abstract
The invention provides a single-side self-bonding acetal enameled kufil-clad transposed semi-hard conductor without paper insulation. The conductor has consistent shape and size; a wound transformer coil can effectively improve spatial use rate of a winding and decrease volume of a transformer. The conductor comprises a transposed core, outside of the transposed core is clad with polyester guipure, the transposed core comprises a plurality of kufil conductors, outside of the kufil conductors comprise kufil conductors and coated with acetal paint, outside of the acetal paint is coated with a self-bonding varnish. The conductor is characterized in that the self-bonding varnish is coated on a broad side of the kufil-clad conductor.
Description
(1) technical field
The present invention relates to power transformer transposed conductor technical field, be specially no paper insulation single side self acetal paint copper-clad silver alloy transposed semi-hard conductor.
(2) background technology
The transposed conductor that present power transformer is used mainly contains paper insulation self-adhesion acetal paint copper-clad transposed semi-hard conductor, and its heatproof index is up to 120, σ
0.2〉=120N/mm
2, the highest 260N/mm that is no more than
2, be bonded to an integral body by coil after the dried, the impact resistance height of coil.Under the power transformer normal operation, the ambient temperature of transformer is approximately 98 ℃～105 ℃, its under long-time high temperature barbecue, semihard yield strength σ
0.2Drop to 100N/mm
2Below and can't reach the SMYS of original design again, the coil integral intensity that relies on the coil epoxy self-bonding to form fully can not satisfy the requirement of high voltage large capcity transformer to the shock-resistant ability of coil far away; And the wrapped number of plies of insulating paper is many, wrapped closely the time, can produce local oil sac phenomenon, has a strong impact on the radiating effect of coil.Therefore, power transformer replaces paper insulation self-adhesion acetal paint copper-clad transposed semi-hard conductor with the paperless insulation self-adhesive acetal enamelled copper-silver alloy transposed semihard lead gradually with transposed conductor now, its conductor is made by Kufil, the Kufil conductor is compared with oxygen-free copper, that its recrystallization temperature and hot mastication temperature are wanted is high 80 ℃～and about 100 ℃, and have favorable conductive heat conduction, can effectively improve the radiating effect of coil, thereby improve the coil working temperature; It adopts the polyester guipure as insulating material, this polyester guipure adopts polyester rope and nylon fiber through working out, have thermal contraction performance and mechanical strength, adopt this polyester guipure lapped insulation thickness little, coiling is tight, can carry out the single or double insulation and strengthen in the transposed conductor production process according to the insulating requirements of coil, neither influence radiating effect, can improve the insulation property of coil again.But, because the self-adhesion film thickness that the general four sides of paperless insulation self-adhesive acetal enamelled copper-silver alloy transposed semihard lead is both sides is about 0.06mm, see accompanying drawing 1, behind its coiling, coil axes to the width of cloth to size all than the big 10mm～30mm of theoretical value, increase the volume of transformer, increased the cost of transformer; And the paperless insulation self-adhesive acetal enamelled copper-silver alloy transposed semihard lead carries out in the dry run at 105 ℃～120 ℃, ruckbildung can appear in the self-adhesion enamelled coating that is present between the transposed conductor core, axially and the width of cloth to being under certain pressure effect, the attenuation of self-adhesion enamelled coating, unnecessary self-adhesive layer trickles between the space of transposed conductor, can form the lacquer knurl, phenomenon is put in generation office, influences the running quality of transformer; And self-adhesive layer is too much, can hinder the heat dissipation of conductor, has influenced the cooling effect of transformer oil to coil, can't amplitude peak reduces the temperature rise of coil.
(3) summary of the invention
At the problems referred to above, the invention provides no paper insulation single side self acetal paint copper-clad silver alloy transposed semi-hard conductor, little and the basically identical of its overall dimension utilizes the transformer coil of its coiling can effectively raise the winding space utilance, has reduced volume of transformer.
Its technical scheme is such, it comprises the transposition core, the outside wrapped polyester guipure of described transposition core, described transposition core comprises several copper-silver alloy conducting wires, described copper-silver alloy conducting wire comprises the Kufil conductor, described Kufil conductor is externally coated with acetal paint, and described acetal paint outside scribbles the self-adhesion lacquer, it is characterized in that: described self-adhesion lacquer is applied to wide of described Kufil conductor.
It is further characterized in that: the width of described self-adhesion lacquer be wide of lead width 1/3～2/3; Described self-adhesion lacquer thickness is 0.03mm～0.05mm.
Compare with the paperless insulation self-adhesive acetal enamelled copper-silver alloy transposed semihard lead, beneficial effect of the present invention is: its minimizing and remove unnecessary self-adhesive layer, make overall dimension reduce 0.10mm～0.40mm, the overall dimension basically identical, the transformer coil of this product coiling, effectively raise the winding space utilance, reduced volume of transformer; The coil of its coiling is handled through normal heat, and coil can not produce the lacquer knurl of the excessive formation of self-adhesive layer and the defective of wedge angle, has reduced office and has put phenomenon, has improved the radiating effect of transformer oil, guarantees that the normal service life and the quality of transformer reduces; The minimizing of film thickness in addition, also improved the radiating effect of this product itself, thereby reach the purpose that improves the coil radiating effect, reduced the temperature rise of coil, circulation and eddy current loss have been reduced, allow transformer 80 ℃～150 ℃ long-time overload operations of high temperature, high temperature long-time running mechanical performance does not descend.
(4) description of drawings
Fig. 1 is a paperless insulation self-adhesive acetal enamelled copper-silver alloy transposed semihard conductor structure schematic diagram;
Fig. 2 does not have paper insulation single side self acetal paint copper-clad silver alloy transposed semi-hard conductor structural representation for the present invention.
(5) embodiment
See Fig. 2, the present invention includes the transposition core, the outside wrapped polyester guipure 4 of transposition core, the transposition core comprises several copper-silver alloy conducting wires, copper-silver alloy conducting wire comprises Kufil conductor 1, and Kufil conductor 1 is externally coated with acetal paint 2, and acetal paint 2 outsides scribble self-adhesion lacquer 3; Wherein self-adhesion lacquer 3 is applied to 1 wide of Kufil conductor; The width of self-adhesion lacquer be wide of copper-silver alloy conducting wire width 1/3～2/3; Self-adhesion lacquer thickness is 0.03mm～0.05mm.
No paper insulation single side self acetal paint copper-clad silver alloy transposed semi-hard conductor of the present invention, by up-drawing method continuous casting process production of copper silver alloy copper bar, through enamel-cover, transposition processing also adopts the polyester guipure wrapped, can be according to the requirement of insulation, at transposed conductor single or double reinforced insulation, and the no paper insulation single side self acetal paint copper-clad silver alloy transposed semi-hard conductor of formation, the existing good electric property of this product, mechanical performance, also has good heat bonding intensity, the characteristics of thermal contraction performance and good heat dissipation effect, and adopt online high pressure paint film continuous meter by the vdct withstand voltage properties, guarantee that paint film can be not impaired; The dielectric loss tester is tested the state of cure of paint film by capacitance principle, guarantees the quality stability and the consistency of single face tack acetal enameling copper strap wire.
Claims (3)
1, no paper insulation single side self acetal paint copper-clad silver alloy transposed semi-hard conductor, it comprises the transposition core, the outside wrapped polyester guipure of described transposition core, described transposition core comprises several copper-silver alloy conducting wires, described copper-silver alloy conducting wire comprises the Kufil conductor, described Kufil conductor is externally coated with acetal paint, and described acetal paint outside scribbles the self-adhesion lacquer, it is characterized in that: described self-adhesion lacquer is applied to wide of described Kufil conductor.
2, according to the described no paper insulation single side self acetal paint copper-clad silver alloy transposed semi-hard conductor of claim 1, it is characterized in that: the width of described self-adhesion lacquer be wide of lead width 1/3～2/3.
3, according to the described no paper insulation single side self acetal paint copper-clad silver alloy transposed semi-hard conductor of claim 2, it is characterized in that: described self-adhesion lacquer thickness is 0.03mm～0.05mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910233911A CN101673588A (en) | 2009-09-28 | 2009-09-28 | Single-side self-bonding acetal enameled kufil-clad transposed semi-hard conductor without paper insulation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910233911A CN101673588A (en) | 2009-09-28 | 2009-09-28 | Single-side self-bonding acetal enameled kufil-clad transposed semi-hard conductor without paper insulation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101673588A true CN101673588A (en) | 2010-03-17 |
Family
ID=42020754
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200910233911A Pending CN101673588A (en) | 2009-09-28 | 2009-09-28 | Single-side self-bonding acetal enameled kufil-clad transposed semi-hard conductor without paper insulation |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101826381A (en) * | 2010-03-29 | 2010-09-08 | 无锡锡洲电磁线有限公司 | Wire semirigid device |
| CN102376387A (en) * | 2010-08-16 | 2012-03-14 | 江苏八达线缆有限公司 | Polyester net coated transposed conductor |
| WO2012113851A1 (en) * | 2011-02-24 | 2012-08-30 | Asta Elektrodraht Gmbh | Continuously transposed conductor |
| CN103247377A (en) * | 2013-05-22 | 2013-08-14 | 江苏句容联合铜材有限公司 | Modified parallel compound belt shielding transposed conductor |
| CN103280257A (en) * | 2013-05-22 | 2013-09-04 | 江苏句容联合铜材有限公司 | Modified parallel composite transposed conductor and processing method thereof |
| 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 |
| US9153359B2 (en) | 2011-02-24 | 2015-10-06 | Asta Elektrodraht Gmbh | Continuously transposed conductor |
| CN108831596A (en) * | 2018-07-26 | 2018-11-16 | 江苏中容电气有限公司 | A kind of EHV transformer high heat resistance insulation transposed conductor |
| CN110021474A (en) * | 2017-12-28 | 2019-07-16 | 株式会社关电 | Hollow coil and its manufacturing method |
-
2009
- 2009-09-28 CN CN200910233911A patent/CN101673588A/en active Pending
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101826381A (en) * | 2010-03-29 | 2010-09-08 | 无锡锡洲电磁线有限公司 | Wire semirigid device |
| CN102376387A (en) * | 2010-08-16 | 2012-03-14 | 江苏八达线缆有限公司 | Polyester net coated transposed conductor |
| WO2012113851A1 (en) * | 2011-02-24 | 2012-08-30 | Asta Elektrodraht Gmbh | Continuously transposed conductor |
| KR20140024286A (en) * | 2011-02-24 | 2014-02-28 | 아스타 엘렉트로드라트 게엠베하 | Continuously trasnposed conductor |
| US9153359B2 (en) | 2011-02-24 | 2015-10-06 | Asta Elektrodraht Gmbh | Continuously transposed conductor |
| KR102046187B1 (en) * | 2011-02-24 | 2019-11-18 | 아스타 엘렉트로드라트 게엠베하 | Continuously trasnposed conductor |
| CN103247377A (en) * | 2013-05-22 | 2013-08-14 | 江苏句容联合铜材有限公司 | Modified parallel compound belt shielding transposed conductor |
| CN103280257A (en) * | 2013-05-22 | 2013-09-04 | 江苏句容联合铜材有限公司 | Modified parallel composite transposed conductor and processing method thereof |
| 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 |
| CN110021474A (en) * | 2017-12-28 | 2019-07-16 | 株式会社关电 | Hollow coil and its manufacturing method |
| CN108831596A (en) * | 2018-07-26 | 2018-11-16 | 江苏中容电气有限公司 | A kind of EHV transformer high heat resistance insulation transposed conductor |
| CN108831596B (en) * | 2018-07-26 | 2024-01-19 | 江苏中容电气有限公司 | High heat-resistant insulation transposed conductor for ultrahigh voltage transformer |
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Application publication date: 20100317 |