CN103680862A - Amorphous transformer rectangular wire-wound winding and manufacturing method thereof - Google Patents
Amorphous transformer rectangular wire-wound winding and manufacturing method thereof Download PDFInfo
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Abstract
The invention discloses an amorphous transformer rectangular wire-wound winding in the field of power transmission and transformation. The amorphous transformer rectangular wire-wound winding comprises a winding framework, an inner-layer wire-wound winding, a winding oil channel and an outer-layer wire-wound winding, wherein the winding framework, the inner-layer wire-wound winding, the winding oil channel and the outer-layer wire-wound winding are sequentially arranged from inside to outside. The upper surface of the winding framework is provided with a framework arc face which is parallel to the short axis direction of the winding framework. The inner-layer wire-wound winding is bound and fixed through multiple unidirectional weftless tape which is parallel to the long axis direction of the winding framework in the framework arc face. The outer-layer wire-wound winding is bound and fixed through multiple unidirectional weftless tape which is parallel to the long axis direction of the winding oil channel in the oil channel arc face. The amorphous transformer rectangular wire-wound winding has the advantages that deformation is not prone to occurring under the action of short-circuit currents, the anti-short-circuit capacity is improved, and the anti-short-circuit capacity of the amorphous transformer can be obviously improved. The invention further discloses a manufacturing method of the amorphous transformer rectangular wire-wound winding in the field of power transmission and transformation.
Description
Technical field
The present invention relates to a kind of amorphous transformer rectangular lines in defeated change field around winding and manufacture method thereof.
Background technology
Along with day by day going deep into of national energy-saving environmental protection policy, amorphous transformer is widely used in electric power power transmission and transformation field as a kind of energy-saving environment-friendly transformer.The expansion in market, client is also that when the river rises the boat goes up to the security requirement of amorphous transformer, and Short Circuit withstand performance test is the important threshold that amorphous transformer must step as certification test conventional in a kind of transformer industry.
In amorphous transformer rectangular lines around winding when there is sudden short circuit, the caused short-circuit electromotive force of huge short circuit current makes rectangular lines produce violent kinetic energy, displacement and distortion around winding.Wherein because rectangular lines is vertical around the arc surface of the winding direction clamping with fixture, therefore in conventional design, amorphous transformer rectangular lines is whole without any reinforcement measure on long axis direction around the arc surface of winding, in rectangular lines when winding is subject to short-circuit current rush, produce radially electric power, rectangular lines is around winding during as low pressure winding, to inside contract, during as high pressure winding, will there is external drum, rectangular lines on winding long axis direction due to the protective effect of fixture and winding skeleton, suffered electric power does not have a negative impact to transformer substantially, but arc surface place is owing to lacking corresponding safeguard measure, often cause junction insulation harm between its high-low pressure winding layers, gap increases, affect normal performance and the safety of amorphous transformer.
Summary of the invention
The object of the invention is in order to overcome the deficiencies in the prior art, provide a kind of amorphous transformer rectangular lines around winding, it is difficult for deforming under the effect of short circuit current, thereby improves its anti-short circuit capability, guarantees normal performance and the safety of amorphous transformer.
A kind of technical scheme that realizes above-mentioned technical purpose is: a kind of amorphous transformer rectangular lines is around winding, comprise the winding skeleton, internal layer wire-wound winding, winding oil duct and the outer wire-wound winding that from inside to outside set gradually, the upper surface of described winding skeleton is provided with the skeleton arc surface parallel with described winding skeleton short-axis direction, and the upper surface of described winding oil duct is provided with the oil duct arc surface parallel with described winding oil duct short-axis direction;
At described skeleton arc surface place, described internal layer wire-wound winding is by some without latitude band tie up admittedly parallel with described winding skeleton long axis direction, at described oil duct arc surface place, described outer wire-wound winding is by some without latitude band tie up admittedly parallel with described winding oil duct long axis direction.
Further, describedly without latitude band, be divided into successively and connect and leading portion, interlude and back segment equal in length; Described interlude is embedded between described internal layer wire-wound winding and described skeleton arc surface, described leading portion is by itself and the folding of described interlude, it is embedded in to the below of the oil duct mounting layer of described internal layer wire-wound winding away from half of described interlude, and described back segment is by the folding top that is fixed on the oil duct mounting layer of described internal layer wire-wound winding of itself and described interlude.
Further, describedly without latitude band, be divided into successively and connect and leading portion, interlude and back segment equal in length; Described interlude is embedded between described outer wire-wound winding and described oil duct arc surface, described leading portion is by itself and the folding of described interlude, it is embedded in to the below of the oil duct mounting layer of described outer wire-wound winding away from half of described interlude, and described back segment is by the folding top that is fixed on the oil duct mounting layer of described outer wire-wound winding of itself and described interlude.
Further, describedly without latitude band, with glass fiber reinforcement unsaturated polyester, make.
Another technical scheme that realizes above-mentioned purpose is: a kind of amorphous transformer rectangular lines is around winding manufacture method, be included in the internal layer wire-wound winding technique step of the outer coiling internal layer wire-wound winding of winding skeleton, the oil duct installation steps of winding oil duct are installed, and winding oil duct outside the outer wire-wound winding technique step of coiling skin wire-wound winding; It is characterized in that:
In internal layer wire-wound winding technique step at the skeleton arc surface place of winding skeleton, by described internal layer wire-wound winding by some parallel with described winding skeleton long axis direction without latitude band, tie up solid, in outer wire-wound winding technique step at the oil duct arc surface place of winding oil duct, by described outer wire-wound winding by some without latitude band tie up consolidate parallel with described winding oil duct long axis direction.
Further, in described internal layer wire-wound winding technique step,
First by being divided into without latitude band, connect successively and leading portion equal in length interlude and back segment;
By the described interlude without latitude band, the long axis direction along described winding skeleton is fixed on described skeleton arc surface again;
Then coiling internal layer wire-wound winding, treats that the oil duct mounting layer of internal layer wire-wound winding is around to a half, and the described leading portion without latitude band that overturns, makes the end face of described leading portion towards described skeleton arc surface, fixes with described internal layer wire-wound winding;
Then coiling remains the oil duct mounting layer of the described internal layer wire-wound winding of half;
The described back segment without latitude band that finally overturns, makes the end face of described back segment fix towards the oil duct mounting layer of described skeleton arc surface and described internal layer wire-wound winding.
Further, in described outer wire-wound winding technique step,
First by being divided into without latitude band, connect successively and leading portion equal in length interlude and back segment;
By the described interlude without latitude band, the long axis direction along described winding oil duct is fixed on described oil duct arc surface again;
Then the outer wire-wound winding of coiling, treats that the oil duct mounting layer of outer wire-wound winding is around to a half, and the described leading portion without latitude band that overturns, makes the end face of described leading portion towards described oil duct arc surface, fixes with described outer wire-wound winding;
Then coiling remains the oil duct mounting layer of the described outer wire-wound winding of half;
The described back segment without latitude band that finally overturns, makes the end face of described back segment fix towards the oil duct mounting layer of described oil duct arc surface and described outer wire-wound winding.
Further, after described outer wire-wound winding technique step, press-fit in addition step and enter to dry step.
Further, the described material of selecting without latitude band is glass fiber reinforcement unsaturated polyester, and the temperature of entering to dry step is 60～210 ℃.
Adopted a kind of amorphous transformer rectangular lines of the present invention around the technical scheme of winding, at the skeleton arc surface place of winding skeleton by internal layer wire-wound winding being tied up solid without latitude band, at the oil duct arc surface place of winding oil duct, by outer wire-wound winding being tied up to solid amorphous transformer rectangular lines around the technical scheme of winding without latitude band.Its technique effect is: amorphous transformer rectangular lines is improved around the structural stability of winding, its skeleton arc surface and the opposing of oil duct arc surface place are because the ability of the distortion that short circuit current produces has obtained enhancing, normal performance and the safety of amorphous transformer have been guaranteed, amorphous transformer rectangular lines does not significantly increase around the manufacturing cost of winding simultaneously, manufacturing process is simple, workable.In addition the present invention has also announced a kind of amorphous transformer rectangular lines around winding manufacture method.
Accompanying drawing explanation
Fig. 1 is the scheme of installation of a kind of amorphous transformer rectangular lines of the present invention leading portion without latitude band between skeleton arc surface and internal layer wire-wound winding in winding.
Fig. 2 be a kind of amorphous transformer rectangular lines of the present invention in winding between skeleton arc surface and internal layer wire-wound winding without the schematic diagram after the installation of latitude band.
Fig. 3 is that a kind of amorphous transformer rectangular lines of the present invention is around the schematic cross-section of winding.
Embodiment
Refer to Fig. 1 to Fig. 3, the present inventor is in order to understand technical scheme of the present invention better, below by embodiment particularly, and is described in detail by reference to the accompanying drawings:
Refer to Fig. 1 to Fig. 3, a kind of amorphous transformer rectangular lines of the present invention, around winding, comprises the winding skeleton 1, internal layer wire-wound winding 2, winding oil duct 3 and the outer wire-wound winding 4 that from inside to outside set gradually.Wherein the upper surface of winding skeleton 1 is provided with the skeleton arc surface 11 parallel with winding skeleton 1 short-axis direction, and the upper surface of winding oil duct 3 is provided with the oil duct arc surface 31 parallel with winding oil duct 3 short-axis directions.
In the present invention, increased by two to three without latitude band 5 between internal layer wire-wound winding 2 and winding skeleton 1, the long axis direction without latitude band 5 along winding skeleton 1, is laid on skeleton arc surface 11.Without latitude band 5, be divided into and connect successively and leading portion 51, interlude (not shown) and back segment 52 equal in length.Wherein, without the interlude of latitude band 5, along the long axis direction of winding skeleton 1, stick on skeleton arc surface 11, and then on winding skeleton 1 coiling internal layer wire-wound winding 2.
In Fig. 1,2 of internal layer wire-wound windings have shown its oil duct mounting layer 21, i.e. the coiling situation of internal layer wire-wound winding 2 outmost turns conductor turns.When oil duct mounting layer 21 coilings of internal layer wire-wound winding 2 are to a half, folding without latitude band 5 with the junction of interlude at the leading portion 51 without latitude band 5, be that inside layer line is overturn without the leading portion 51 of latitude band 5 around the direction of the oil duct mounting layer 21 of winding 2, make end face without the leading portion 51 of latitude band 5 towards skeleton arc surface 11, and fixing with internal layer wire-wound winding 2 bondings.Without the leading portion 51 of latitude band 5 by it folding with interlude, make its end face bond and fix with internal layer wire-wound winding 2.End face without the leading portion 51 of latitude band 5 in the present embodiment is fixing with internal layer wire-wound winding 2 by adhesive tape 6, as shown in Figure 1.Because the wire of coiling internal layer wire-wound winding 2 is equipped with insulating barrier, therefore the end face without the leading portion 51 of latitude band 5 is fixing with the insulating barrier of internal layer wire-wound winding 2.And then the remainder of the oil duct mounting layer 21 of coiling internal layer wire-wound winding 2, like this in the leading portion 51 without latitude band 5, away from half of described interlude, be embedded in the below of the oil duct mounting layer 21 of internal layer wire-wound winding 2, and clamping by the oil duct mounting layer 21 of internal layer wire-wound winding 2.
And then without latitude band 5, overturn without the back segment 52 of latitude band 5 the junction without latitude band 5 back segments 52 and interlude is folding, make end face without the back segment 52 of latitude band 5 towards skeleton arc surface 11, and fixing with oil duct mounting layer 21 bondings of internal layer wire-wound winding 2.Without the back segment 52 of latitude band 5 by it folding with described interlude, the oil duct mounting layer 21 of its end face and internal layer wire-wound winding 2 is bondd and fixes.End face without the back segment 52 of latitude band 5 in the present embodiment is fixing with the oil duct mounting layer 21 of internal layer wire-wound winding 2 by adhesive tape 6, as shown in Figure 2.
By above-mentioned technological means, by skeleton arc surface 11 places at winding skeleton 1 without latitude band 5, internal layer wire-wound winding 2 is tied up solid, strengthened internal layer wire-wound winding 2 at skeleton arc surface 11 places, each encloses the fastening and mechanical strength of bonding between conductor turns, guarantee the structural stability that internal layer wire-wound winding 2 respectively encloses between conductor turns, prevent that amorphous transformer rectangular lines is when winding is subject to short-circuit current rush, internal layer wire-wound winding 2 deforms at skeleton arc surface 11, strengthens amorphous transformer rectangular lines around the anti-short circuit capability of winding.
Then in internal layer wire-wound winding 4 outsides, winding oil duct 3 is installed.
In the present invention, layer line has increased by two to three without latitude band 5 between winding 4 and winding oil duct 3 outside, and the long axis direction without latitude band 5 along winding oil duct 3, is laid on oil duct arc surface 31.Without latitude band 5, be divided into and connect successively and leading portion 51, interlude (not shown) and back segment 52 equal in length.Wherein, without the interlude of latitude band 5, along the long axis direction of winding oil duct 3, stick on oil duct arc surface 31, and then on winding oil duct 3 the outer wire-wound winding 4 of coiling.
The oil duct mounting layer 41 of outer wire-wound winding 4, i.e. outer wire-wound winding 4 outmost turns conductor turns.When oil duct mounting layer 41 coilings of outer wire-wound winding 4 are to a half, folding without latitude band 5 with the junction of interlude at the leading portion 51 without latitude band 5, be that outside layer line is overturn without the leading portion 51 of latitude band 5 around the direction of the oil duct mounting layer 41 of winding 4, make end face without the leading portion 51 of latitude band 5 towards oil duct arc surface 31, and fixing with outer wire-wound winding 4 bondings.Without the leading portion 51 of latitude band 5 by it folding with interlude, make its end face bond and fix with outer wire-wound winding 4.End face without the leading portion 51 of latitude band 5 in the present embodiment is fixing with outer wire-wound winding 4 by adhesive tape 6.Because the wire of the outer wire-wound winding 4 of coiling is equipped with insulating barrier, therefore the end face without the leading portion 51 of latitude band 5 is fixing with the insulating barrier of outer wire-wound winding 4.And then the remainder of the oil duct mounting layer 41 of the outer wire-wound winding 4 of coiling, like this in the leading portion 51 without latitude band 5, away from half of described interlude, be embedded in the below of the oil duct mounting layer 41 of outer wire-wound winding 4, and clamping by the oil duct mounting layer 41 of outer wire-wound winding 4.
And then without latitude band 5, overturn without the back segment 52 of latitude band 5 the junction without latitude band 5 back segments 52 and interlude is folding, make end face without the back segment 52 of latitude band 5 towards oil duct arc surface 31, and fixing with oil duct mounting layer 41 bondings of outer wire-wound winding 4.Without the back segment 52 of latitude band 5 by it folding with described interlude, the oil duct mounting layer 41 of its end face and outer wire-wound winding 4 is bondd and fixes.End face without the back segment 52 of latitude band 5 in the present embodiment is fixing with the oil duct mounting layer 41 of outer wire-wound winding 4 by adhesive tape 6.
By above-mentioned technological means, by oil duct arc surface 31 places at winding oil duct 3 without latitude band 5, outer wire-wound winding 4 is tied up solid, strengthened outer wire-wound winding 4 at oil duct arc surface 31 places, each encloses the fastening and mechanical strength of bonding between conductor turns, guarantee that outer wire-wound winding 4 respectively encloses the Stability Analysis of Structures between conductor turns, prevent that amorphous transformer rectangular lines is when winding is subject to short-circuit current rush, outer wire-wound winding 4 deforms at oil duct arc surface 31, strengthens amorphous transformer rectangular lines around the anti-short circuit capability of winding.
Amorphous transformer rectangular lines after installation around winding as shown in Figure 3.
Amorphous transformer rectangular lines, after winding technique completes, need to press-fit it, and enters to dry operation, makes without 5 sclerosis of latitude band, and amorphous transformer rectangular lines is more firm around integral structure.That in the present embodiment, selects adopts glass fiber reinforcement unsaturated polyester without latitude band 5, and the temperature of therefore entering to dry is 160～210 ℃.
A kind of amorphous transformer Short Circuit withstand rectangular lines of the present invention around winding at skeleton arc surface 11 places of winding skeleton 1 by internal layer wire-wound winding 2 being tied up solid without latitude band 5, oil duct arc surface 31 places at winding oil duct 3, by outer wire-wound winding 4 being tied up solid without latitude band 5, in amorphous transformer rectangular lines when there is paroxysmal short circuit current in winding, avoid the distortion causing due to short circuit current, improve amorphous transformer rectangular lines around the anti-short circuit capability of winding, guarantee normal performance and the safety of amorphous transformer, amorphous transformer rectangular lines does not significantly increase around the manufacturing cost of winding simultaneously, manufacturing process is simple, workable.
Claims (9)
1. an amorphous transformer rectangular lines is around winding, comprise the winding skeleton (1), internal layer wire-wound winding (2), winding oil duct (3) and the outer wire-wound winding (4) that from inside to outside set gradually, the upper surface of described winding skeleton (1) is provided with the skeleton arc surface (11) parallel with described winding skeleton (1) short-axis direction, and the upper surface of described winding oil duct (3) is provided with the oil duct arc surface (31) parallel with described winding oil duct (3) short-axis direction; It is characterized in that:
At described skeleton arc surface (11), locate, described internal layer wire-wound winding (2) is by some without latitude band (5) tie up admittedly parallel with described winding skeleton (1) long axis direction, at described oil duct arc surface (31), locate, described outer wire-wound winding (4) is by some without latitude band (5) tie up admittedly parallel with described winding oil duct (3) long axis direction.
2. a kind of amorphous transformer rectangular lines according to claim 1, around winding, is characterized in that: describedly without latitude band (5), be divided into successively and connect and leading portion (51), interlude and back segment (52) equal in length; Described interlude is embedded between described internal layer wire-wound winding (2) and described skeleton arc surface (11), described leading portion (51) is by itself and the folding of described interlude, it is embedded in to the below of the oil duct mounting layer (21) of described internal layer wire-wound winding (2) away from half of described interlude, and described back segment (52) is by the folding top that is fixed on the oil duct mounting layer (21) of described internal layer wire-wound winding (2) of itself and described interlude.
3. a kind of amorphous transformer rectangular lines according to claim 1, around winding, is characterized in that: describedly without latitude band (5), be divided into successively and connect and leading portion (51), interlude and back segment (52) equal in length; Described interlude is embedded between described outer wire-wound winding (4) and described oil duct arc surface (31), described leading portion (51) is by itself and the folding of described interlude, it is embedded in to the below of the oil duct mounting layer (41) of described outer wire-wound winding (4) away from half of described interlude, and described back segment (52) is by the folding top that is fixed on the oil duct mounting layer (41) of described outer wire-wound winding (4) of itself and described interlude.
According to a kind of amorphous transformer rectangular lines described in any one in claims 1 to 3 around winding, it is characterized in that: describedly without latitude band (5), with glass fiber reinforcement unsaturated polyester, make.
5. an amorphous transformer rectangular lines is around winding manufacture method, be included in the internal layer wire-wound winding technique step of winding skeleton (1) outer coiling internal layer wire-wound winding (2), the oil duct installation steps of winding oil duct (3) are installed, and winding oil duct (3) outside the outer wire-wound winding technique step of coiling skin wire-wound winding (4); It is characterized in that:
Skeleton arc surface (11) at winding skeleton (1) in internal layer wire-wound winding technique step is located, by described internal layer wire-wound winding (2) by some parallel with described winding skeleton (1) long axis direction without latitude band (5), tie up solid, in outer wire-wound winding technique step, at the oil duct arc surface (31) of winding oil duct (3), locate, by described outer wire-wound winding (4) by some without latitude band (5) tie up consolidate parallel with described winding oil duct (3) long axis direction.
6. a kind of amorphous transformer rectangular lines according to claim 5, around winding manufacture method, is characterized in that: in described internal layer wire-wound winding technique step,
First will without latitude band (5), be divided into and connecting successively and leading portion (51) equal in length, interlude and back segment (52);
By the described interlude without latitude band (5), the long axis direction along described winding skeleton (1) is fixed on described skeleton arc surface (11) again;
Follow coiling internal layer wire-wound winding (2), treat that the oil duct mounting layer (21) of internal layer wire-wound winding (2) is around to a half, the described leading portion without latitude band (5) (51) overturns, make the end face of described leading portion (51) towards described skeleton arc surface (11), fixing with described internal layer wire-wound winding (2);
Then coiling remains the oil duct mounting layer (21) of the described internal layer wire-wound winding (2) of half;
The described back segment without latitude band (5) (52) that finally overturns, makes the end face of described back segment (52) fixing with the oil duct mounting layer (21) of described internal layer wire-wound winding (2) towards described skeleton arc surface (11).
7. a kind of amorphous transformer rectangular lines according to claim 5, around winding manufacture method, is characterized in that: in described outer wire-wound winding technique step,
First will without latitude band (5), be divided into and connecting successively and leading portion (51) equal in length, interlude and back segment (52);
By the described interlude without latitude band (5), the long axis direction along described winding oil duct (3) is fixed on described oil duct arc surface (31) again;
Follow the outer wire-wound winding (4) of coiling, treat that the oil duct mounting layer (41) of outer wire-wound winding (4) is around to a half, the described leading portion without latitude band (5) (51) overturns, make the end face of described leading portion (51) towards described oil duct arc surface (31), fixing with described outer wire-wound winding (4);
Then coiling remains the oil duct mounting layer (41) of the described outer wire-wound winding (4) of half;
The described back segment without latitude band (5) (52) that finally overturns, makes the end face of described back segment (52) fixing with the oil duct mounting layer (41) of described outer wire-wound winding (4) towards described oil duct arc surface (31).
According to a kind of amorphous transformer rectangular lines described in any one in claim 5 to 7 around winding manufacture method, it is characterized in that: after described outer wire-wound winding technique step, press-fit in addition step and enter to dry step.
9. a kind of amorphous transformer rectangular lines according to claim 8, around winding manufacture method, is characterized in that: the described material of selecting without latitude band (5) is glass fiber reinforcement unsaturated polyester, and the temperature of entering to dry step is 160～210 ℃.
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| CN105551773A (en) * | 2016-01-21 | 2016-05-04 | 王永法 | Anti-short-circuit transformer coil and preparation method therefor |
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| Publication number | Publication date |
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| CN103680862B (en) | 2015-12-09 |
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