Support device for plug-in test cables of transformers
By designing a support frame and support stool, the problem of poor contact between the plug-in test cable joint and the sleeve was solved, ensuring that the cable and the sleeve are in parallel contact, avoiding cable overheating and breakdown, and improving production efficiency and safety.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 成都西电中特电气有限责任公司
- Filing Date
- 2025-06-27
- Publication Date
- 2026-06-19
AI Technical Summary
The existing technology lacks a support device for plug-in test cables, which results in the cable joint hole and the conical surface of the sleeve not making full and sufficient contact, which may lead to gas accumulation and cable breakdown.
A support device for transformer pluggable test cables was designed, including a support frame and a support stool. It is easy to move by means of directional wheels and brake wheels. Bolt holes are provided on the support legs to adjust the height and ensure that the cable is in parallel contact with the bushing.
This ensures good contact between the cable and the conduit, preventing cable overheating and breakdown, improving the utilization rate of the production site and the quality of testing and installation, and reducing costs.
Smart Images

Figure CN224383317U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of transformer manufacturing technology, specifically to a support device for a pluggable test cable for a transformer. Background Technology
[0002] When crimping the terminals of pluggable test cables, pay close attention to the orientation of the terminal plane. It must be parallel and flush with the copper plane of the transformer mounting bushing to ensure good contact. Poor contact at the terminal plane will cause it to heat up under load current, and excessively high temperatures may cause the cable to catch fire or burn.
[0003] Due to its heavy weight, the plug-in test cable (hereinafter referred to as the test cable) may not be able to fully contact the cable joint hole with the conical surface of the bushing when pulled at an angle, resulting in the appearance of gas in some areas. This can cause the bushing or the test cable to break down during the test.
[0004] To avoid the above problems, it is necessary to support the pluggable test cable. However, the existing technology lacks a support device for the pluggable test cable. Utility Model Content
[0005] The purpose of this utility model is to provide a support device for a transformer plug-in test cable in order to solve at least one of the above-mentioned technical problems.
[0006] This utility model provides a support device for a transformer pluggable test cable, including: a support frame and a support stool; the support stool is disposed on the top of the support frame, and the bottom of the support frame is provided with directional wheels and brake wheels; wherein, the support stool includes a support plate and a first support leg disposed below the support plate, the support frame includes a base and a second support leg disposed on the top of the base, bolt holes are respectively provided at corresponding positions on the first support leg and the second support leg, the first support leg is inserted into the second support leg and fixed by bolts passing through the bolt holes; the support plate is used to support the transformer pluggable test cable.
[0007] Optionally, the support frame includes two bases and four second support legs, with two second support legs fixed to the top of each base, and adjacent second support legs connected by a support frame crossbeam.
[0008] Optionally, the directional wheel is provided at the bottom of one of the two bases, and the brake wheel is provided at the bottom of the other base.
[0009] Optionally, multiple sets of bolt holes are provided on the second support leg at different height positions.
[0010] Optionally, the directional wheel includes a double-bearing directional caster, and the brake wheel includes a double-bearing brake caster.
[0011] Optionally, the bottom of the support plate is provided with four first support legs, and adjacent first support legs are connected by a support bench beam.
[0012] Optionally, the first support leg is connected to the support bench beam by welding.
[0013] Optionally, multiple sets of bolt holes are provided on the first support leg at different height positions.
[0014] Optionally, the support plate may be made of wood.
[0015] This utility model provides a support device for pluggable test cables of transformers. Multiple sets of bolt holes are provided on the support legs of the support frame and the support stool. During use, the overall height of the device is adjusted by the depth of the support stool inserted into the support frame. The device can be moved between different sites by the directional wheels on the base. The device provided by this utility model is easy to install, safe and reliable, easy to move, and occupies little space, which improves the utilization rate of the production site and ensures the quality of product testing and installation, thus effectively reducing costs and increasing efficiency. Attached Figure Description
[0016] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.
[0017] Figure 1 A front view of a support device for a transformer pluggable test cable provided in an embodiment of this utility model;
[0018] Figure 2 A side view of a support device for a transformer pluggable test cable provided in an embodiment of this utility model;
[0019] Figure 3 A front view of a support stool provided for an embodiment of this utility model;
[0020] Figure 4 A side view of a support stool provided for an embodiment of this utility model;
[0021] Figure 5 A schematic diagram of the structure of a support plate provided in an embodiment of this utility model;
[0022] Figure 6 A front view of a support frame provided for an embodiment of this utility model;
[0023] Figure 7 A side view of a support frame provided for an embodiment of this utility model.
[0024] In the diagram: 1. Support frame, 11. Base, 12. Second support leg, 13. Support frame crossbeam, 2. Support stool, 21. Support plate, 22. First support leg, 23. Support stool crossbeam, 3. Directional wheel, 4. Brake wheel, 5. Bolt hole. Detailed Implementation
[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0026] Figure 1 This is a front view of a support device for a transformer pluggable test cable according to an embodiment of the present utility model. Figure 2 This is a side view of a support device for a transformer pluggable test cable according to an embodiment of the present utility model. Figure 1 and Figure 2 As shown, it includes: a support frame 1 and a support stool 2; the support stool 2 is set on the top of the support frame 1, and the bottom of the support frame 1 is provided with a directional wheel 3 and a brake wheel 4.
[0027] Figure 3 This is a front view of a support stool according to an embodiment of the present utility model. Figure 4 This is a side view of a support stool according to an embodiment of the present utility model. Figure 3 and Figure 4 As shown, the support stool 2 includes a support plate 21 and a first support leg 22 disposed below the support plate 21.
[0028] Specifically, support plate 21 is used to support the transformer plug-in test cable.
[0029] like Figure 3 and Figure 4 As shown, four first support legs 22 are provided at the bottom of the support plate 21, and adjacent first support legs 22 are connected by a support bench beam 23.
[0030] Preferably, the first support leg 22 is connected to the support bench beam 23 by welding.
[0031] Figure 5 This is a structural schematic diagram of a support plate according to an embodiment of the present utility model. Figure 5 As shown, the material of the support plate 21 includes wood.
[0032] Figure 6 This is a front view of a support frame provided according to an embodiment of the present utility model. Figure 7 This is a side view of a support frame provided according to an embodiment of the present utility model. Figure 6 and Figure 7 As shown, the support frame 1 includes a base 11 and a second support leg 12 disposed on the top of the base 11. Bolt holes 5 are respectively provided at corresponding positions on the first support leg 22 and the second support leg 12. The first support leg 22 is inserted into the second support leg 12 and fixed by bolts passing through the bolt holes 5.
[0033] Specifically, such as Figure 6 and Figure 7 As shown, the support frame 1 includes two bases 11 and four second support legs 12. Two second support legs 12 are fixed to the top of each base 11, and adjacent second support legs 12 are connected by a support frame beam 13.
[0034] Preferably, the second support leg 12 is fixed to the support frame beam 13 by welding.
[0035] Preferably, one of the two bases 11 is provided with a directional wheel 3 at its bottom, and the other base 11 is provided with a brake wheel 4 at its bottom.
[0036] Preferably, the directional wheel 3 includes a double-bearing directional caster, and the brake wheel 4 includes a double-bearing brake caster.
[0037] Specifically, multiple sets of bolt holes 5 are provided on the second support leg 12 at different height positions. For example, six sets of bolt holes 5 with equal spacing are provided on the second support leg 12, and four bolt holes 5 at the same height on the four second support legs 12 form a group.
[0038] Specifically, multiple sets of bolt holes 5 are provided on the first support leg 22 at different height positions. For example, eight sets of bolt holes 5 with equal spacing are provided on the first support leg 22, and four bolt holes 5 at the same height on the four first support legs 22 form a group.
[0039] In use, the first support leg 22 is inserted into the second support leg 12 and the overall height of the device is adjusted by adjusting the insertion depth. Finally, the height is fixed with fixing bolts.
[0040] The method of using a support device for a transformer pluggable test cable provided in this embodiment of the utility model is as follows:
[0041] Step 1: According to the product drawings, check the height H1 of the upper surface of the F-type sleeve flange installed on the top of the box from the ground.
[0042] Step 2: According to the product drawings, check the height H2 from the lower surface of the F-type sleeve mounting flange to the top of the sleeve cone.
[0043] Step 3: Check the diameter D of the test cable.
[0044] Step 4: Calculate the adjustment height of the support device H = H1 + H2 - ∅D / 2.
[0045] Step 5: Adjust the height H0 of the support device to be as close as possible to and less than H. Insert four bolts into a set of common holes in the support legs of the support stool and support frame, and tighten them with nuts.
[0046] Step 6: Adjust the H-H0 gap using wooden blocks.
[0047] Step 7: Adjust the two support devices in the same way and place them parallel to the three-phase bushing installation line.
[0048] Step 8: Place the test cable horizontally, perpendicular to the three-phase bushing installation line, and parallel to each other on the support device.
[0049] Step 9: After the test cable is connected to the bushing, tidy up the test cable again so that it is horizontal, perpendicular to the three-phase bushing installation line, and parallel to each other on the support device, and fix the test cable on the support device.
[0050] Once the above nine steps are successfully completed, the use of the test cable support fixture will be fully completed.
[0051] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.
[0052] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.
Claims
1. A support device for a transformer pluggable test cable, characterized in that, include: Support frame and support stool; The support stool is mounted on top of the support frame, and the bottom of the support frame is equipped with directional wheels and brake wheels; wherein, The support stool includes a support plate and a first support leg disposed below the support plate. The support frame includes a base and a second support leg disposed on the top of the base. Bolt holes are respectively provided at corresponding positions on the first support leg and the second support leg. The first support leg is inserted into the second support leg and fixed by bolts passing through the bolt holes. The support plate is used to support the pluggable test cable of the transformer.
2. The support device for transformer pluggable test cables according to claim 1, characterized in that: The support frame includes two bases and four second support legs. Two second support legs are fixed to the top of each base, and adjacent second support legs are connected by a support frame crossbeam.
3. The support device for transformer pluggable test cables according to claim 2, characterized in that: The directional wheel is installed at the bottom of one of the two bases, and the brake wheel is installed at the bottom of the other base.
4. The support device for transformer pluggable test cables according to claim 1, characterized in that: Multiple sets of bolt holes are provided on the second support leg at different height positions.
5. The support device for transformer pluggable test cables according to claim 1, characterized in that: The directional wheel includes a double-bearing directional caster, and the brake wheel includes a double-bearing brake caster.
6. The support device for transformer pluggable test cables according to claim 1, characterized in that: The bottom of the support plate is provided with four first support legs, and adjacent first support legs are connected by a support bench beam.
7. The support device for transformer pluggable test cables according to claim 6, characterized in that: The first support leg is connected to the support bench beam by welding.
8. The support device for transformer pluggable test cables according to claim 1, characterized in that: Multiple sets of bolt holes are provided on the first support leg at different height positions.
9. The support device for transformer pluggable test cables according to claim 1, characterized in that: The support plate is made of wood.