CN102097182A - Process for producing transposition composite lead - Google Patents
Process for producing transposition composite lead Download PDFInfo
- Publication number
- CN102097182A CN102097182A CN 201110041423 CN201110041423A CN102097182A CN 102097182 A CN102097182 A CN 102097182A CN 201110041423 CN201110041423 CN 201110041423 CN 201110041423 A CN201110041423 A CN 201110041423A CN 102097182 A CN102097182 A CN 102097182A
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- transposition
- composite conductor
- production technology
- enameled wires
- paper
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Abstract
The invention discloses a process for producing a transposition composite lead, comprising the following steps of: enameling a group of one-step formed bare copper flat wires; transposing the finished enameled wires; insulating the transposed enameled wires via paper packing and arranging the enameled wires in parallel along a narrow edge; and uniformly wrapping insulating paper outside the paper packed enameled wires which are arranged in parallel along the narrow edge so as to obtain the transposition composite lead. In the invention, a coil winding process is easy for operation; and when the obtained transposition lead is applied to ultrahigh voltage transformers and extra-high voltage transformers, favorable impact voltage distribution is provided and the local discharging of coils is reduced.
Description
Technical field
The present invention relates to a kind of Transformer Winding transposition composite conductor, the production technology of the transposition composite conductor that specifically a kind of big capacity, high-voltage direct-current Transformer Winding are used.
Background technology
Along with the rising of electrical network, power station voltage and the increase of capacity, the electric pressure of transformer and capacity also improve constantly increase.Meanwhile, the winding damage accident that large-scale power transformer causes because of external short circuit is showed increased also, and the radial distortion of winding by compression is one of its typical short circuit damage type, so the strong oversize transformer of market demand anti-short circuit capability, the transposition composite conductor is exactly to arise at the historic moment under these circumstances.
So-called transposed conductor, be exactly multiply is disperseed and around lead, before coiling, according to certain rules earlier, 360 ° are replaced continuously, at last from appearance, are woven into to single thicker, are surrounded by the lead of insulating paper; During application, it be used as a lead come around, for example be wound into the cylindrical shape winding, do not need in the winding process to replace again.The use of transposed conductor is more and more wider at transformer industry, from 110KV to 500KV and even bigger superhigh pressure, ultra high voltage.But along with the capacity of transformer increases the designing requirement of lead and inherent quality more and more higher.Present transposed conductor has the following disadvantages:
1) coiling difficulty, the coil out-of-flatness that winds, main cause is that wire gauge is big, yield strength is big.As semihard self-adhering transposed conductor specification 1.80 * 13.20, radical 59, yield strength 200---240N/m ㎡, pitch of transposition is 110mm, paper bag insulation thickness 0.75mm, phenomenons such as the insulating paper worn-off or the bag that expands appear in the winding process of reality, production process is very difficult, and product quality is had sizable hidden danger;
2) if transposed conductor transposition occurs not exclusively or phenomenon such as drain in manufacturing process, or deviation when coiling, occurs, be difficult to guarantee the equilibrium of each winding resistance and reactance will produce pressure reduction, cause circulation loss;
3) transposed conductor is wound into the cylindrical shape winding, do not need in the winding process to replace again, if but the supplementary load loss of this winding are big, the loss of transformer is increased, and noise increases, and temperature rise increases, the reduction of exerting oneself reduces transformer's life span, may burn transformer when serious.
Summary of the invention
In order to overcome the problem that existing transposed conductor exists, the purpose of this invention is to provide a kind of production technology of the composite conductor that replaces, this production technology is in the coil winding process, and is easy to operate; The transposed conductor that obtains is used in has good surge voltage distribution in superhigh pressure, the extra-high voltage transformer, the partial discharge index reduces greatly.
The objective of the invention is to be achieved through the following technical solutions:
A kind of production technology of the composite conductor that replaces is characterized in that this production technology may further comprise the steps:
1) carries out enamel-cover with one group by the one-time formed bare copper flat wire of extruding;
2) will be through the finished product enamelled wire transposition of enamel-cover;
3) insulation of the enamelled wire paper bag after will replacing, and be arranged in juxtaposition along narrow limit;
4) full packaged insulation materials paper again outside the paper bag enamelled wire that is arranged in juxtaposition along narrow limit obtains the composite conductor that replaces.
Among the present invention, one group is the 11-37 root by the one-time formed bare copper flat wire of extruding.
The present invention at first by one group of many bare copper flat wire through enamel-cover, transposition, through paper bag insulation, arranged side by side then along narrow limit, constitute through the insulating paper turnkey again.
The transposition composite conductor that the present invention obtains is applicable to that its characteristics are as follows in big capacity, the high-voltage direct-current Transformer Winding:
(1), in the coil winding process, easy to operate, do not have other phenomenons and take place.
(2), this invention is used in and has good surge voltage distribution in superhigh pressure, the extra-high voltage transformer.
The strict control of the present invention field strength distribution guarantees not take place in the coil partial discharge.Ultra high voltage valve winding in converter transformer first and last end all will bear the all-wave lightning impulse voltage of 1800 kV, and the valve lateral coil is all insulation structure.
The combined shifting lead of the present invention design can be in order to make the winding of high voltage large capcity transformer, satisfy transformer by direct current to interchange or from the specific (special) requirements of AC-to DC conversion.The excellent mechanical intensity performance that combined shifting lead possessed is the desirable winding material of high voltage, high-power transformer.
Description of drawings
Fig. 1 is the structural representation of the transposition composite conductor that obtains of the present invention.
Embodiment
A kind of production technology of transposition composite conductor of the present invention, this production technology may further comprise the steps:
1) one group of 5-37 root is carried out enamel-cover by the one-time formed bare copper flat wire of extruding;
2) will be through the finished product enamelled wire transposition of enamel-cover;
3) insulation of the enamelled wire paper bag after will replacing, and be arranged in juxtaposition along narrow limit;
4) full packaged insulation materials paper again outside the paper bag enamelled wire that is arranged in juxtaposition along narrow limit obtains the composite conductor that replaces.
Fig. 1 is the structural representation of the transposition composite conductor that obtains of the present invention.The present invention at first by one group of many bare copper flat wire 1 through enamel-cover, transposition, through paper bag 2 insulation, arranged side by side then along minor face, constitute through insulating paper 3 turnkeys again.The transposition composite conductor Self-binding cord bonding force that obtains: 8 ~ 15Mpa; Half-hard wire yield strength: 80 ~ 260 Mpa ［ recommendation: 120 ~ 200 Mpa ］.The combined shifting lead that the present invention obtains is the desirable winding material of high voltage, high-power transformer.
Claims (2)
1. the production technology of the composite conductor that replaces is characterized in that this production technology may further comprise the steps:
1) carries out enamel-cover with one group by the one-time formed bare copper flat wire of extruding;
2) will be through the finished product enamelled wire transposition of enamel-cover;
3) insulation of the enamelled wire paper bag after will replacing, and be arranged in juxtaposition along narrow limit;
4) full packaged insulation materials paper again outside the paper bag enamelled wire that is arranged in juxtaposition along narrow limit obtains the composite conductor that replaces.
2. the production technology of transposition composite conductor according to claim 1 is characterized in that: one group is the 11-37 root by the one-time formed bare copper flat wire of extruding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110041423 CN102097182A (en) | 2011-02-21 | 2011-02-21 | Process for producing transposition composite lead |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110041423 CN102097182A (en) | 2011-02-21 | 2011-02-21 | Process for producing transposition composite lead |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102097182A true CN102097182A (en) | 2011-06-15 |
Family
ID=44130230
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201110041423 Pending CN102097182A (en) | 2011-02-21 | 2011-02-21 | Process for producing transposition composite lead |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102097182A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102324282A (en) * | 2011-08-15 | 2012-01-18 | 江苏中容电气有限公司 | Production technology for transposition aluminum enameled composite conductor |
| CN109036710A (en) * | 2018-07-26 | 2018-12-18 | 江苏中容电气有限公司 | A kind of net pack transposition conducting wire production technology |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4431860A (en) * | 1981-08-13 | 1984-02-14 | Westinghouse Canada Inc. | Multistranded component conductor continuously transposed cable |
| JP2002118020A (en) * | 2000-10-10 | 2002-04-19 | Fuji Electric Co Ltd | Transposed conductor and wiring for induction electric appliance |
| CN1700363A (en) * | 2005-04-26 | 2005-11-23 | 句容市电磁线公司 | Process for making voltage transformer enamel-covered lenticular wires |
| CN200965819Y (en) * | 2006-07-26 | 2007-10-24 | 沈阳市宏远电磁线有限公司 | Inner shielding combination transposing wire |
| CN201134284Y (en) * | 2007-08-24 | 2008-10-15 | 上海杨行铜材有限公司 | Multiple strands parallelly arranged and combined transposed conducting line |
-
2011
- 2011-02-21 CN CN 201110041423 patent/CN102097182A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4431860A (en) * | 1981-08-13 | 1984-02-14 | Westinghouse Canada Inc. | Multistranded component conductor continuously transposed cable |
| JP2002118020A (en) * | 2000-10-10 | 2002-04-19 | Fuji Electric Co Ltd | Transposed conductor and wiring for induction electric appliance |
| CN1700363A (en) * | 2005-04-26 | 2005-11-23 | 句容市电磁线公司 | Process for making voltage transformer enamel-covered lenticular wires |
| CN200965819Y (en) * | 2006-07-26 | 2007-10-24 | 沈阳市宏远电磁线有限公司 | Inner shielding combination transposing wire |
| CN201134284Y (en) * | 2007-08-24 | 2008-10-15 | 上海杨行铜材有限公司 | Multiple strands parallelly arranged and combined transposed conducting line |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102324282A (en) * | 2011-08-15 | 2012-01-18 | 江苏中容电气有限公司 | Production technology for transposition aluminum enameled composite conductor |
| CN109036710A (en) * | 2018-07-26 | 2018-12-18 | 江苏中容电气有限公司 | A kind of net pack transposition conducting wire production technology |
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20110615 |