Reverse section winding tool for transposed conductor of 110kV and above high-voltage coil
By using a stepped winding tool to support the transposition conductor, the problem of insufficient support for the weight of the coil during the winding of large-gauge electromagnetic wire was solved, achieving a highly efficient and compact winding effect and improving coil quality and winding efficiency.
Patent Information
- Application Number
- CN202520286296.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-21
- Publication Date
- 2025-12-30
- Estimated Expiration
- 2035-02-21
AI Technical Summary
In the existing technology, the transposed conductor (large gauge electromagnetic wire) is too heavy to be supported by the traditional flipping plate, which makes it difficult for the wire turns to overlap radially during the winding process. It is easy for the wire turns to break apart and cannot be wound normally.
A stepped winding tool is used, including the first to fourth steps. The length of each step is about 5mm longer than the width of the wire gauge. It is used to support the wire disc. During winding, each turn of wire is wound on the corresponding step. After rotating 90°, the wire disc plane is formed. The tool is then pulled out to tighten the wire disc.
This achieves a highly efficient and compact winding process, reduces the insulation breakage rate between turns, improves winding quality and efficiency, and enhances the market competitiveness and safety of the transformer.
Smart Images
Figure CN223743467U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present application relates to the technical field of high-voltage coil winding, in particular to a 110kV and above high-voltage coil transposed conductor reverse section winding tool. BACKGROUND
[0002] Since the 110kV and above large-capacity transformer part of the high and low voltage coil mostly adopts transposed conductor (large wire gauge electromagnetic wire) continuous type winding, the volume of the middle and low voltage coil is relatively small, and the technical requirements can be adopted. The horizontal winding can be adopted, but the high voltage coil can only be adopted. The vertical winding is limited by the weight and volume, and there is an adaptation problem of the reverse section winding method on the vertical winding. The conventional combined conductor continuous type adopts the wire turning plate to wind the reverse section, but the high voltage coil reverse section winding of the transposed conductor (large wire gauge electromagnetic wire) of some large capacity high voltage grade transformers is not applicable. Since the transposed conductor (large wire gauge electromagnetic wire) has the characteristics of heavy weight per unit, the weight of each pie wire is relatively large, the traditional wire turning plate has no support under it, and only a paper board or epoxy board with a thickness of about 5mm cannot support such heavy wire pie weight. In the winding process, the middle and outer extensions of the wire turning plate are bent downward by the wire pie, which causes the wire turns to be unable to normally wind and stack in the radial direction, and the winding work cannot be normally carried out. SUMMARY
[0003] The purpose of the present application is to provide a 110kV and above high-voltage coil transposed conductor reverse section winding tool, which solves the problem that the weight per unit of the transposed conductor (large wire gauge electromagnetic wire) is heavy, so that the weight of each pie wire is relatively large, the traditional wire turning plate has no support under it, and only a paper board or epoxy board with a thickness of about 5mm cannot support such heavy wire pie weight. In the winding process, the middle and outer extensions of the wire turning plate are bent downward by the wire pie, which causes the wire turns to be unable to normally wind and stack in the radial direction, and the winding work cannot be normally carried out.
[0004] To achieve the above-mentioned purpose, the present application provides a 110kV and above high-voltage coil transposed conductor reverse section winding tool, which comprises a stepped winding tool, the stepped winding tool comprises a first step, a second step, a third step and a fourth step, the first step is a long strip, the second step is arranged at one end of the length direction of the first step, and the second step is higher than the first step, the third step is arranged at one end of the first step from the second step, and the third step is higher than the second step, and the fourth step is arranged at one end of the third step away from the second step, and the fourth step is higher than the third step.
[0005] The upper end of the first step, the second step, the third step and the fourth step is a plane.
[0006] Optionally, the length of the first step portion is greater than the length of the second step portion, the third step portion, and the fourth step portion.
[0007] The side edge of the upper end surface of the first step portion, the second step portion, the third step portion, and the fourth step portion on the left side is provided with a rounded corner, and the side edge of the upper end surface of the fourth step portion on the right side is provided with a rounded corner.
[0008] Optionally, the step winding tool further comprises:
[0009] The insulation piece is arranged above each layer of the coil wire segment after winding.
[0010] Optionally, the insulation piece comprises a cushion block.
[0011] Optionally, the step winding tool is arranged above the coil wire segment.
[0012] Optionally, the step winding tool further comprises:
[0013] The transposed wire is arranged above the step winding tool, and each transposed wire from bottom to top is arranged above the first step portion, the second step portion, and the third step portion.
[0014] The embodiment of the present application has the following advantages:
[0015] Compared with the prior art, the length of each step of the step winding tool is greater than the width of the wire gauge by about 5 mm, which is optimal. The step winding tool is directly placed on the wire cake of the previous segment, and the lower part is supported by the wire cake, thereby solving the problem that the previous segment wire cake cannot support the weight. The step winding tool is placed on the corresponding support bar before winding, each turn of wire is wound on the corresponding step, and after the turns of the segment are wound, the step winding tool is slightly loosened, the step winding tool is transversely rotated by 90°, the wire turns naturally fall to form a wire cake plane, then the step winding tool is extracted, and the wire cake is tightened, so that a reverse segment wire cake is basically completed.
[0016] By providing a convenient, fast, and efficient winding scheme for transposed wire (large wire gauge electromagnetic wire) continuous coils in medium and large transformers, the winding tool is convenient to operate and easy to use. The tightness of the wound coil is good, the insulation damage rate between turns is almost zero, the winding quality and efficiency are greatly improved, and the efficiency of coil winding and the quality of transformer coils are greatly improved. The transformer produced by the enterprise has better market competitiveness, better performance, and is more safe, energy-saving, and environmentally friendly after operation. BRIEF DESCRIPTION OF DRAWINGS
[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the accompanying drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced. Obviously, the accompanying drawings in the following description are only exemplary, and for those skilled in the art, other drawings can be obtained from the provided drawings without creative effort.
[0018] Figure 1 A front view of a stepped winding tool of a 110kV and above high-voltage coil transposed wire reverse segment winding tool provided for at least one embodiment of the present application;
[0019] Figure 2 A top view of a stepped winding tool of a 110kV and above high-voltage coil transposed wire reverse segment winding tool provided for at least one embodiment of the present application;
[0020] Figure 3 A side view of a stepped winding tool of a 110kV and above high-voltage coil transposed wire reverse segment winding tool provided for at least one embodiment of the present application;
[0021] Figure 4 A front view of a coil wire segment of a 110kV and above high-voltage coil transposed wire reverse segment winding tool provided for at least one embodiment of the present application;
[0022] Figure 5 A top view of a coil wire segment of a 110kV and above high-voltage coil transposed wire reverse segment winding tool provided for at least one embodiment of the present application;
[0023] Figure 6 A side view of a coil wire segment of a 110kV and above high-voltage coil transposed wire reverse segment winding tool provided for at least one embodiment of the present application;
[0024] Figure 7 A transposed wire structure schematic diagram of a 110kV and above high-voltage coil transposed wire reverse segment winding tool provided for at least one embodiment of the present application.
[0025] Explanation of reference signs:
[0026] 1, first stepped portion, 2, second stepped portion, 3, third stepped portion, 4, fourth stepped portion. DETAILED DESCRIPTION
[0027] The following describes the embodiments of the present application by specific examples, and those skilled in the art can easily understand other advantages and effects of the present application from the disclosure. Obviously, the described embodiments are part of the embodiments of the present application, not all. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present application.
[0028] In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the purpose of facilitating the description of the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first", "second", "third" are only for the purpose of description, and cannot be understood as indicating or implying relative importance. Unless otherwise specified and limited, the terms "set", "mount", "connected", "connected" should be broadly understood, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.
[0029] It should also be noted that the terms "step 1)", "step 2)", "step 3)" and the like in the claims and description of the present application are used to distinguish different steps, not to describe a specific order or sequence, and it should be understood that these steps can be executed substantially in parallel or in reverse order under appropriate circumstances, depending on the functions involved.
[0030] In addition, the technical features involved in the different embodiments of the present application described below can be combined with each other as long as there is no conflict.
[0031] The embodiment of the present application provides a 110kV and above high-voltage coil transposition wire reverse segment winding tool, referring to Figures 1 to 7 , comprising:
[0032] The ladder winding tool comprises a first ladder section 1, a second ladder section 2, a third ladder section 3, and a fourth ladder section 4. The first ladder section 1 is long and strip-shaped. The second ladder section 2 is arranged at one end of the first ladder section 1 in the length direction and is higher than the first ladder section 1. The third ladder section 3 is arranged at one end of the second ladder section 2 away from the first ladder section 1 and is higher than the second ladder section 2. The fourth ladder section 4 is arranged at one end of the third ladder section 3 away from the second ladder section 2 and is higher than the third ladder section 3.
[0033] The upper ends of the first ladder section 1, the second ladder section 2, the third ladder section 3, and the fourth ladder section 4 are all flat.
[0034] In some embodiments, the length of the first ladder section 1 is greater than the lengths of the second ladder section 2, the third ladder section 3, and the fourth ladder section 4.
[0035] The side edges of the upper end faces of the first ladder section 1, the second ladder section 2, the third ladder section 3, and the fourth ladder section 4 on the left side are provided with rounded corners, and the side edges of the upper end faces of the fourth ladder section 4 on the right side are provided with rounded corners.
[0036] In some embodiments, the ladder winding tool further comprises:
[0037] A plurality of insulation pieces are arranged above each layer of the coil wire segment after winding.
[0038] In some embodiments, the insulation pieces comprise pads.
[0039] In some embodiments, the ladder winding tool is arranged above the coil wire segment.
[0040] In some embodiments, the ladder winding tool further comprises:
[0041] A transposition wire is arranged above the ladder winding tool, and each turn of the transposition wire from bottom to top is arranged above the first ladder section 1, the second ladder section 2, and the third ladder section 3.
[0042] The specific operation steps are as follows:
[0043] 1) After placing various insulation pieces such as pads on the lower coil wire segment after winding, place the corresponding coil support bar of the ladder winding tool on the upper surface of the coil wire segment.
[0044] 2) After processing the outer transposition of the segment, start the winding machine to wind the reverse segment. According to the shape of the ladder winding tool, each turn of the transposition wire from outside to inside and from bottom to top is pressed on a ladder until the number of turns of the segment is sufficient, and the inner transposition is positioned and processed.
[0045] 3) again, the just around the line cake back loose a little, one by one, the previous placement of all the ladder winding tool to the right or left rotation 90 DEG after the pull out; line cake down back into a line segment plane, and then tighten the line segment, so a reverse segment line segment is completed, the whole process can be completed in a few minutes, the efficiency is extremely high.
[0046] In summary, compared with the prior art, the ladder winding tool provided by the application is best to have a length of each ladder greater than the width of the wire gauge by about 5mm, is directly placed on the line cake of the previous segment, and is supported by the line cake at the lower part, thereby solving the problem of supporting the weight of the reverse segment line cake, the ladder winding tool is placed in place before starting to wind, each turn of the wire is wound on the corresponding ladder, the ladder winding tool is transversely rotated by 90 DEG after the number of turns of the segment is wound, the turns naturally fall to form a line cake plane, then the ladder winding tool is pulled out, and the line cake is then tightened, so that a reverse segment line cake is basically completed.
[0047] By providing a convenient, fast and efficient winding scheme for the continuous coil of the transposed conductor (large wire gauge electromagnetic wire) of the medium and large transformer, the winding tool is convenient to operate, simple to use, the coil wound by the winding tool has good tightness, the insulation damage rate between turns is almost zero, and the winding quality and efficiency are greatly improved; it not only solves the problem that the traditional winding method is not suitable for the continuous coil of the large capacity transposed conductor, but also greatly improves the efficiency of the coil winding and the quality of the transformer coil, so that the transformer produced by the enterprise has better market competitiveness, better performance, and is safer, more energy-saving and more environmentally friendly after operation.
[0048] Note that all features disclosed in this specification (including any accompanying claims, abstract and drawings) can be replaced by alternative features serving the same, equivalent or similar purpose, unless expressly stated otherwise. Thus, unless expressly stated otherwise, each feature disclosed is only one example of a generic series of equivalent or similar features. Further, preferably, more preferably, even more preferably and most preferably are simple starting points for another embodiment in the context of the previous embodiment, the combination of the previous embodiment and the content following the more preferably, more preferably, even more preferably or most preferably is the complete constitution of another embodiment. The combination of several further, preferably, more preferably, even more preferably or most preferably settings following the same embodiment can be arbitrarily combined to form another embodiment.
[0049] In the implementation of functions and steps, the corresponding functions and steps in each embodiment can also occur in a different order from that shown. For example, two consecutive functions and steps can actually be executed or implemented substantially in parallel, or they can sometimes be executed or implemented in reverse order, depending on the functions involved.
[0050] Although the present application has been described in detail with general description and specific embodiments above, it is obvious to those skilled in the art that some modifications or improvements can be made on the basis of the present application. Therefore, these modifications or improvements made on the basis of not deviating from the spirit of the present application, all belong to the scope of the present application claimed.
Claims
1. A 110 kV and above high voltage coil transposition conductor segment winding tool, characterized in that, Comprise: The stepped winding tool comprises a first step part, a second step part, a third step part and a fourth step part. The first step part is long strip-shaped. The second step part is arranged at one end of the first step part in the length direction and is higher than the first step part. The third step part is arranged at one end of the second step part away from the first step part and is higher than the second step part. The fourth step part is arranged at one end of the third step part away from the second step part and is higher than the third step part. The upper end of the first step part, the second step part, the third step part and the fourth step part are all flat.
2. The 110kV and above high-voltage coil transposed conductor reverse segment winding tool according to claim 1, characterized in that: The length of the first step part is greater than the length of the second step part, the third step part and the fourth step part. The side edge of the upper end face of the first step part, the second step part, the third step part and the fourth step part is provided with a round corner.
3. The 110 kV and above high voltage coil transposition conductor segment winding tool of claim 1, wherein, Further comprise: The insulation piece is arranged above each layer of the coil wire segment after winding.
4. The 110kV and above high-voltage coil transposed conductor reverse segment winding tool according to claim 3, characterized in that: The insulation piece comprises a cushion block.
5. The 110kV and above high-voltage coil transposed conductor reverse segment winding tool according to claim 3, characterized in that: The stepped winding tool is arranged above the coil wire segment.
6. The 110 kV and above high voltage coil transposition conductor segment winding tool of claim 5, wherein, Further comprise: The transposed conductor is arranged above the stepped winding tool, and each turn of the transposed conductor from bottom to top is arranged above the first step part, the second step part and the third step part respectively.