Ground wire hanging device special for outlet busbar of dry-type transformer
By designing a dedicated grounding wire device for the outgoing busbar of a dry-type transformer, the problems of loose connection between the grounding wire and the busbar and easy detachment were solved, achieving tight connection, flexible adjustment and high adaptability, and improving operational safety.
Patent Information
- Application Number
- CN202422590005.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-25
- Publication Date
- 2026-01-06
- Estimated Expiration
- 2034-10-25
AI Technical Summary
During power outage maintenance of dry-type transformers, the grounding wire may not be securely connected to the busbar, posing a risk of detachment. The grounding wire is prone to detachment, and its connection position is difficult to adjust, increasing safety risks.
A special grounding wire device for the outgoing busbar of a dry-type transformer was designed, including a grounding wire cover, an adjustment cover, an adjustment groove, and a flexible wiring structure. The device achieves a tight connection and flexible adjustment between the grounding wire and the outgoing line through the adjustment positioning structure and the double-headed screw.
It achieves tight connection between the grounding wire and the outgoing wire, convenient operation, reliable connection, flexible adjustment of the connection position and height, high adaptability, simple and reasonable device structure, flexible operation, and improved safety.
Smart Images
Figure CN223771357U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of power plant maintenance technology, and in particular to a special grounding device for the outgoing busbar of a dry-type transformer. Background Technology
[0002] When dry-type transformers are shut down for maintenance, grounding wires need to be suspended on the transformer's outgoing busbars. However, currently, dry-type transformers do not have devices installed on the high and low voltage sides for connecting grounding wires. Therefore, when suspending grounding wires, the grounding clamps are directly clamped to the high and low voltage busbars.
[0003] The existing method has the following drawbacks: First, the connection between the grounding wire and the busbar is not tight. The busbar on the high-voltage side of the dry-type transformer is usually connected by a cable, so only the exposed bolts are available for the grounding wire connection. On the low-voltage side, due to the influence of the dry-type transformer casing, the contact between the grounding wire clamp and the busbar is not tight. Second, the grounding wire is prone to falling off. Since the grounding wire on the high-voltage side is only clamped on the bolt, the connection on the low-voltage side is not tight. In addition, the grounding wire is relatively heavy, which may cause the grounding wire to fall off easily, increasing the safety risk. Third, the available connection positions are not fixed for different dry-type transformers, making it difficult to adapt flexibly. Summary of the Invention
[0004] The technical problem to be solved by this utility model is to provide a special grounding wire device for the outgoing busbar of a dry-type transformer, which ensures that when the dry-type transformer is de-energized and a side-suspended grounding wire operation is required, the grounding wire is tightly connected to the outgoing line, making the operation more convenient; the clamp connection method provides stable contact and a reliable connection, and the connection position height can be flexibly adjusted, making it more adaptable; the overall structure of the device is simple and reasonable, the operation is convenient and flexible, and it is highly practical.
[0005] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is: a special grounding wire device for the outgoing busbar of a dry-type transformer, including a grounding wire cover, wherein the grounding wire cover is provided with an adjusting cover that slides with it, the grounding wire cover is provided with an opening groove and an adjusting groove, the adjusting cover cooperates with the adjusting groove through an adjusting positioning structure, and the adjusting cover is provided with a mating hole, symmetrically arranged limiting holes and a flexible wiring structure.
[0006] In a preferred embodiment, the flexible wiring structure includes symmetrically arranged adjusting slide arms that slide in conjunction with limiting holes. The top of the adjusting slide arm is threaded into a double-ended screw. The other end of the adjusting slide arm is provided with a clamp, and a conductive pad is provided inside the clamp. The conductive pad is connected to one end of a wire via a wiring connection, and the other end of the wire is provided with a grounding ring.
[0007] In a preferred embodiment, the rotation directions of the threads on both sides of the double-ended screw are opposite.
[0008] In a preferred embodiment, the double-ended screw is equipped with an anti-slip throttle.
[0009] In a preferred embodiment, the conductor is a helical spring wire.
[0010] In a preferred embodiment, the adjustment and positioning structure includes an adjustment rod disposed on the adjustment cover, one end of the adjustment rod having a handle, an elastic element sleeved on the adjustment rod, both ends of the elastic element being connected to the adjustment cover and the handle respectively, the other end of the adjustment rod being connected to a positioning plate, the positioning plate being positioned and engaged with the adjustment groove, and the positioning plate having an anti-slip pad that engages with the grounding wire cover.
[0011] The grounding device for the outgoing busbar of a dry-type transformer provided by this utility model has the following advantages by adopting the above structure:
[0012] (1) Ensure that when the dry-type transformer is de-energized and the side-suspended ground wire is operated, the ground wire and the outgoing line are tightly connected, making the operation more convenient;
[0013] (2) The clamp connection method provides stable contact, reliable connection, and flexible adjustment of the connection position height, making it more adaptable;
[0014] (3) The device has a simple and reasonable overall structure, is easy and flexible to operate, and is highly practical. Attached Figure Description
[0015] The present invention will be further described below with reference to the accompanying drawings and embodiments:
[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model.
[0017] Figure 2 This is a schematic diagram of the overall structure of this utility model.
[0018] Figure 3 This is a schematic diagram of the overall structure of this utility model.
[0019] Figure 4 This is a schematic diagram showing the relationship between the grounding wire cover and the adjustment and positioning structure of this utility model.
[0020] Figure 5 This is a schematic diagram of the flexible wiring structure of this utility model.
[0021] In the diagram: 1. Grounding wire cover; 2. Adjustment cover; 3. Opening groove; 4. Adjustment groove; 5. Mating hole; 6. Adjustment rod; 7. Handle; 8. Elastic element; 9. Positioning plate; 10. Anti-slip pad; 11. Limiting hole; 12. Adjustment sliding arm; 13. Double-ended screw; 14. Anti-slip throttle; 15. Clamp; 16. Conductive pad; 17. Wiring; 18. Wire; 19. Grounding ring. Detailed Implementation
[0022] like Figure 1-5Among them, a special grounding wire device for the outgoing busbar of a dry-type transformer includes a grounding wire cover 1. The grounding wire cover 1 is provided with an adjusting cover 2 that slides with it. The grounding wire cover 1 is provided with an opening groove 3 and an adjusting groove 4. The adjusting cover 2 cooperates with the adjusting groove 4 through an adjusting positioning structure. The adjusting cover 2 is provided with a mating hole 5, symmetrically arranged limiting holes 11 and a flexible wiring structure.
[0023] In a preferred embodiment, the flexible wiring structure includes symmetrically arranged adjusting arms 12 that slide in conjunction with the limiting hole 11. The top of the adjusting arms 12 is threaded into a double-ended screw 13. The other end of the adjusting arms 12 is provided with a clamp 15, and a conductive pad 16 is provided inside the clamp 15. The conductive pad 16 is connected to one end of a wire 18 via a wiring 17, and the other end of the wire 18 is provided with a grounding ring 19. The wiring connection is more reliable, and different wiring heights are easily adaptable.
[0024] In the preferred embodiment, the rotation directions of the threads on both sides of the double-ended screw 13 are opposite. This allows for simultaneous bidirectional clamping and releasing, making the process convenient and quick.
[0025] In a preferred embodiment, the double-ended screw 13 is equipped with an anti-slip handle 14 for ease of use.
[0026] In a preferred embodiment, the conductor 18 is a helical spring wire. It can be stretched and contracted after height adjustment.
[0027] In a preferred embodiment, the adjustment and positioning structure includes an adjustment rod 6 mounted on the adjustment cover 2. One end of the adjustment rod 6 has a handle 7, and an elastic element 8 is fitted onto the adjustment rod 6. Both ends of the elastic element 8 are connected to the adjustment cover 2 and the handle 7, respectively. The other end of the adjustment rod 6 is connected to a positioning plate 9, which is positioned and engaged with the adjustment groove 4. The positioning plate 9 is equipped with an anti-slip pad 10 that engages with the grounding cable cover 1. Height adjustment is convenient, and positioning is reliable and stable.
[0028] The method of using this utility model is as follows: control the height of the adjusting cover 2 by adjusting the positioning structure so that the mating hole 5 matches the outlet connection position, then connect it to the outlet connection point through the flexible wiring structure, and then ground the grounding ring 19.
[0029] The beneficial effects of this utility model are: ensuring a tight connection between the grounding wire and the outgoing wire when the dry-type transformer is de-energized and the side-suspended grounding wire is operated, making the operation more convenient; the clamp connection method provides stable contact, a reliable connection, and flexible adjustment of the connection position height, resulting in higher adaptability; the overall structure of the device is simple and reasonable, easy and flexible to operate, and highly practical.
Claims
1. A ground wire hanging device special for dry-type transformer outgoing line busbar, comprising a ground wire hanging cover (1), characterized in that: The ground wire cover (1) is provided with an adjusting cover (2) in sliding fit with the ground wire cover (1), the ground wire cover (1) is provided with an open slot (3) and an adjusting slot (4), the adjusting cover (2) is in fit with the adjusting slot (4) through an adjusting positioning structure, the adjusting cover (2) is provided with a fit hole (5), symmetrically arranged limiting holes (11) and a flexible wire connecting structure.
2. The ground wire hanging device for the outgoing line busbar of a dry-type transformer according to claim 1, characterized in that: The flexible wire connecting structure comprises symmetrically arranged adjusting slide arms (12) in sliding fit with the limiting holes (11), the top of the adjusting slide arm (12) is in thread fit with a double-end screw rod (13), the other end of the adjusting slide arm (12) is provided with a chuck (15), the chuck (15) is provided with a conductive pad (16) therein, the conductive pad (16) is connected with one end of a wire (18) through a wire (17), the other end of the wire (18) is provided with a grounding ring (19).
3. The ground wire hanging device for the outgoing line busbar of a dry-type transformer according to claim 2, characterized in that: The rotation directions of the threads on the two sides of the double-end screw rod (13) are opposite.
4. The ground wire hanging device for the outgoing line busbar of a dry-type transformer according to claim 2, characterized in that: The double-end screw rod (13) is provided with an anti-skid rotating handle (14).
5. The ground wire hanging device for the outgoing line busbar of a dry-type transformer according to claim 2, characterized in that: The wire (18) is a spiral spring wire.
6. The ground wire hanging device for the outgoing line busbar of a dry-type transformer according to claim 1, characterized in that: The adjusting positioning structure comprises an adjusting rod (6) arranged on the adjusting cover (2), one end of the adjusting rod (6) is provided with a handle (7), the adjusting rod (6) is sleeved with an elastic member (8), the two ends of the elastic member (8) are connected with the adjusting cover (2) and the handle (7) respectively, the other end of the adjusting rod (6) is connected with a positioning plate (9), the positioning plate (9) is in positioning fit with the adjusting slot (4), the positioning plate (9) is provided with an anti-skid pad (10) in fit with the ground wire cover (1).