CN101383219A - Copper array of dry transformer foil coil and manufacturing method thereof - Google Patents
Copper array of dry transformer foil coil and manufacturing method thereof Download PDFInfo
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- CN101383219A CN101383219A CNA2008100291406A CN200810029140A CN101383219A CN 101383219 A CN101383219 A CN 101383219A CN A2008100291406 A CNA2008100291406 A CN A2008100291406A CN 200810029140 A CN200810029140 A CN 200810029140A CN 101383219 A CN101383219 A CN 101383219A
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Abstract
The invention discloses a copper bar of foil winding coils of a dry type transformer, which comprises a foil winding section, a bending section and a leading-out end which are orderly connected into a whole, wherein the foil winding section is provided with a tilted V-shaped gradient section along a length direction, namely, along the length of the foil winding coils from bottom to top, and the cross section of the foil winding section of the coils steadily increases according to the rule that the carrying capacity of the foil winding coils increases in a unit line mode. The prepared copper bar can save copper and greatly reduce the production cost, the shape of each foil winding coil of the transformer more conforms to the circular design effect, and the power frequency performance and the thunder impacting safety are more reliable.
Description
Technical field
The present invention relates to the dry-type transformer equipment part, specifically be meant copper bar of a kind of array of dry transformer foil coil and preparation method thereof.
Background technology
To energy-saving and cost-reducing requirement, each transformer producer all makes unremitting effort at, nodal wood type transformer energy-conservation for exploitation according to country.Especially the near section time, how the copper resource scarcity is saved the transformer making and is seemed especially urgent with copper material.As shown in Figure 1, 2, the copper conductor of existing array of dry transformer foil coil is whole a Copper Foil 1, the height and the coil height of Copper Foil 1 are suitable, Copper Foil is wound into cylindric sandwich construction, be wound with insulating barrier between each layer Copper Foil simultaneously, and be arranged at intervals with dielectric support block 3 every the several layers Copper Foil, form gas channel 4 at interval, so that heat radiation at Copper Foil; Described inner copper line 2-1 (its shape is shown in Fig. 3,4) is welded on the head end of the Copper Foil 1 initiating terminal inboard of paper tinsel coiling as coil, outer copper line 2-2 (its shape is shown in Fig. 5,6) is welded on the end of Copper Foil 1 end of paper tinsel coiling as coil, and two copper bar 2-1,2-2 position are all in the same side of coil; Shortcoming be copper bar 2 shared locational spaces to cause whole winding greatly be not circular, make copper bar 2 shorten distance with the high pressure exterior loop, cause 2 pairs of high pressure exterior loop discharges of copper bar easily, thereby have influence on the safe operation of transformer.
Summary of the invention
The objective of the invention is to overcome the shortcoming of above-mentioned prior art, a kind of copper bar of array of dry transformer foil coil is provided, and it can save copper material, reduces production costs greatly, and making transformer foil coiling profile more meet design circle effect, power frequency performance and lightning impulse security performance are more reliable.
The present invention also aims to provide the manufacture method of the copper bar of above-mentioned array of dry transformer foil coil.
Purpose of the present invention realizes by following proposal: the copper bar of this array of dry transformer foil coil, comprise that the paper tinsel that connects as one successively is around section, bending section, exit, wherein, described paper tinsel is provided with the gradient section that is " ∠ " shape along its length around section, promptly along paper tinsel coiling height direction from the bottom to top, described coil paper tinsel is the rule that the unit straight line increases around the sectional area of section according to paper tinsel coiling current-carrying size and increases progressively.
For realizing the present invention better, the length dimension of the gradient section of described " ∠ " shape and the angle of gradient section hypotenuse and straight flange are determined according to the standard-required of paper tinsel coiling Copper Foil current-carrying size and current carrying density.
The copper bar manufacture method of above-mentioned array of dry transformer foil coil, be meant standard-required according to paper tinsel coiling Copper Foil current-carrying size and current carrying density, determine the length dimension of lead-in wire copper bar gradient section and the angle of gradient section hypotenuse and straight flange, make along paper tinsel coiling height direction from the bottom to top, described coil paper tinsel increases progressively according to the rule that paper tinsel coiling current-carrying size is unit straight line growth around the sectional area of section, thereby the shear line of determining the copper bar flitch is arranged rationally to open material; The copper bar flitch is sheared by described shear line, obtained the inside and outside copper bar of this array of dry transformer foil coil.Like this, just, can save short equirotal equivalent copper bar with the gradient segment length.
Compared with prior art, the present invention has following advantage and beneficial effect: easy to make, simple in structure, can obviously save copper material, reduce production costs greatly, simultaneously, the array of dry transformer foil coil of making according to the present invention also more meets the circular requirement of design, the distribution electric field is more even, and power frequency performance and lightning impulse security performance are more reliable.
Description of drawings
Fig. 1 is vertical sectional structure schematic diagram of existing array of dry transformer foil coil;
Fig. 2 is the plan structure schematic diagram of array of dry transformer foil coil shown in Figure 1;
Fig. 3 is an inner copper line front view shown in Fig. 1,2;
Fig. 4 is an inner copper line vertical view shown in Fig. 1,2;
Fig. 5 is an outer copper line front view shown in Fig. 1,2;
Fig. 6 is a vertical view shown in Fig. 1,2;
Fig. 7 is that array of dry transformer foil coil copper bar of the present invention is sheared the schematic diagram that is made as inside and outside copper bar simultaneously;
Fig. 8 is that paper tinsel coiling current-carrying gradient is resolved schematic diagram.
Embodiment
Below in conjunction with embodiment and accompanying drawing the present invention is described in further detail, but embodiments of the present invention are not limited thereto.
Embodiment
Shown in Fig. 3-6, the copper bar of this array of dry transformer foil coil (inside and outside copper bar 2-1,2-2) comprises that respectively the paper tinsel that connects as one successively is around section, bending section, exit.
Be illustrated in figure 8 as paper tinsel coiling current-carrying gradient analysis diagram, size according to actual Copper Foil current-carrying, determine the length dimension of gradient section of inside and outside copper bar 2-1,2-2 of this array of dry transformer foil coil and the angle of gradient section hypotenuse and straight flange, thereby the shear line 5 (as shown in Figure 7) of determining copper bar is arranged rationally to open material.
As shown in Figure 7, can shear out inside and outside copper bar 2-1, the 2-2 of this array of dry transformer foil coil along shear line 5 simultaneously, thereby saved short equirotal equivalent copper bar with the gradient segment length, make the paper tinsel of inside and outside copper bar 2-1,2-2 be provided with the gradient section that is " ∠ " shape along its length around section, promptly along paper tinsel coiling height direction from the bottom to top, described coil paper tinsel is the rule that the unit straight line increases around the sectional area of section according to paper tinsel coiling current-carrying size and increases progressively.
As mentioned above, just can realize the present invention preferably, the foregoing description is preferred embodiment of the present invention only, is not to be used for limiting practical range of the present invention; Be that all equalizations of doing according to content of the present invention change and modification, all contained by claim of the present invention scope required for protection.
Claims (3)
1, a kind of copper bar of array of dry transformer foil coil, comprise that the paper tinsel that connects as one successively is around section, bending section, exit, it is characterized in that: described paper tinsel is provided with the gradient section that is " ∠ " shape along its length around section, promptly along paper tinsel coiling height direction from the bottom to top, described coil paper tinsel is the rule that the unit straight line increases around the sectional area of section according to paper tinsel coiling current-carrying size and increases progressively.
2, according to the copper bar of the described a kind of array of dry transformer foil coil of claim 1, it is characterized in that: the length dimension of the gradient section of described " ∠ " shape and the angle of gradient section hypotenuse and straight flange, determine according to the standard-required of paper tinsel coiling Copper Foil current-carrying size and current carrying density.
3, a kind of copper bar manufacture method of array of dry transformer foil coil, it is characterized in that: according to the standard-required of paper tinsel coiling Copper Foil current-carrying size and current carrying density, determine the length dimension of lead-in wire copper bar gradient section and the angle of gradient section hypotenuse and straight flange, make along paper tinsel coiling height direction from the bottom to top, described coil paper tinsel increases progressively according to the rule that paper tinsel coiling current-carrying size is unit straight line growth around the sectional area of section, thereby the shear line of determining the copper bar flitch is arranged rationally to open material; The copper bar flitch is sheared by described shear line, obtained the inside and outside copper bar of array of dry transformer foil coil.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100291406A CN101383219B (en) | 2008-06-30 | 2008-06-30 | Copper array of dry transformer foil coil and manufacturing method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100291406A CN101383219B (en) | 2008-06-30 | 2008-06-30 | Copper array of dry transformer foil coil and manufacturing method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101383219A true CN101383219A (en) | 2009-03-11 |
| CN101383219B CN101383219B (en) | 2011-01-19 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2008100291406A Active CN101383219B (en) | 2008-06-30 | 2008-06-30 | Copper array of dry transformer foil coil and manufacturing method thereof |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102360814A (en) * | 2011-08-18 | 2012-02-22 | 无锡亿能电力设备有限公司 | Outgoing line block of foil winding |
| CN102360810A (en) * | 2011-07-21 | 2012-02-22 | 江苏中容科技有限公司 | Foil coil outlet copper bar |
| CN103258626A (en) * | 2013-04-16 | 2013-08-21 | 山东达驰电气有限公司 | Two-winding testing transformer self-coupling wiring method and application thereof |
| CN103280300A (en) * | 2013-06-17 | 2013-09-04 | 江苏中容科技有限公司 | Foil-wound low-voltage coil extension bar for dry type transformer with wound stereoscopic iron core |
| CN115331954A (en) * | 2022-10-17 | 2022-11-11 | 广州市一变电气设备有限公司 | Transformer foil type coil winding and wire outgoing method, winding and energy-saving and environment-friendly transformer |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN200990281Y (en) * | 2006-12-07 | 2007-12-12 | 中电电气集团有限公司 | Lead wire bank for tranformer foil coil use |
| CN201072694Y (en) * | 2007-07-27 | 2008-06-11 | 中电电气集团有限公司 | Liquid dipping type transformer copper and aluminum row |
| CN201222412Y (en) * | 2008-06-30 | 2009-04-15 | 广州广高高压电器有限公司 | Copper bar for dry transformer foil coil |
-
2008
- 2008-06-30 CN CN2008100291406A patent/CN101383219B/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102360810A (en) * | 2011-07-21 | 2012-02-22 | 江苏中容科技有限公司 | Foil coil outlet copper bar |
| CN102360814A (en) * | 2011-08-18 | 2012-02-22 | 无锡亿能电力设备有限公司 | Outgoing line block of foil winding |
| CN103258626A (en) * | 2013-04-16 | 2013-08-21 | 山东达驰电气有限公司 | Two-winding testing transformer self-coupling wiring method and application thereof |
| CN103280300A (en) * | 2013-06-17 | 2013-09-04 | 江苏中容科技有限公司 | Foil-wound low-voltage coil extension bar for dry type transformer with wound stereoscopic iron core |
| CN115331954A (en) * | 2022-10-17 | 2022-11-11 | 广州市一变电气设备有限公司 | Transformer foil type coil winding and wire outgoing method, winding and energy-saving and environment-friendly transformer |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101383219B (en) | 2011-01-19 |
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