Device for preventing abnormal deformation of busbar on low-voltage side of transformer

Abstract

The utility model relates to the related technical field of transformers, in particular to a device for preventing abnormal deformation of a low-voltage side busbar of a transformer, which comprises a copper bar piece, the copper bar piece is cut into a first connecting piece and a second connecting piece, a distance is reserved between the first connecting piece and the second connecting piece, and a flexible conductive piece is connected between the first connecting piece and the second connecting piece. The length of the conductive piece is larger than the distance between the first connecting piece and the second connecting piece, the two ends of the conductive piece are connected with the first connecting piece and the second connecting piece through fixing pieces correspondingly, and one end of the conductive piece is provided with a power-off mechanism used for cutting off the conductive relation between the conductive piece and the first connecting piece. The copper bar piece is cut into the first connecting piece and the second connecting piece, the distance is reserved between the first connecting piece and the second connecting piece, and the flexible conductive piece is connected between the first connecting piece and the second connecting piece, so that the situation that the overall structure of the copper bar is deformed and damaged due to position deviation between the first connecting piece and the second connecting piece is avoided; therefore, the problem is solved.

Description

Technical Field

[0001] This utility model relates to the field of transformer-related technology, and in particular to a device for preventing abnormal deformation of the low-voltage side busbar of a transformer. Background Technology

[0002] In power systems, transformers play a crucial role, especially in voltage conversion and power distribution. However, in actual operation, transformers may encounter various fault modes, one of which is short-circuit discharge. Short-circuit discharge refers to a surge in current in an electrical system caused by the formation of an unexpected low-impedance path, which may be caused by insulation damage, manufacturing defects, or external factors.

[0003] In transformer short-circuit discharge faults, especially on the low-voltage side of the transformer, the low-voltage side terminals of the transformer are all connected to the low-voltage cabinet in the power room using copper busbars. If a short-circuit discharge occurs between the two copper busbars, a large impact force will be generated between them. Since there is no flexible connection structure or buffer structure between the copper busbars and the transformer, this impact force will directly damage the transformer terminals and the parts below them. At best, the transformer terminals will be deformed; at worst, the transformer will be damaged.

[0004] Based on the above situation, it is necessary to design a device to prevent abnormal deformation of the low-voltage side busbar of the transformer to solve the above problems. Utility Model Content

[0005] This invention provides a device to prevent abnormal deformation of the low-voltage side busbar of a transformer, thereby solving the problem in the prior art where discharge phenomena can cause abnormal deformation of the low-voltage side busbar of a transformer.

[0006] The technical problem solved by this utility model is achieved by the following technical solution:

[0007] A device for preventing abnormal deformation of the low-voltage side busbar of a transformer includes a copper busbar component. The copper busbar component is characterized by being cut into a first connector and a second connector, with a distance between them and a flexible conductive element connecting them. The length of the conductive element is greater than the distance between the first and second connectors. Both ends of the conductive element are connected to the first and second connectors respectively via fixing elements. One end of the conductive element is provided with a power-off mechanism for severing the conductive relationship between the conductive element and the first connector.

[0008] Preferably, the fixing member consists of a first clamp and a second clamp, the first clamp being fixedly connected to the end of the conductive member, and the first clamp and the second clamp being connected by bolts.

[0009] Preferably, the power-off mechanism includes a conductor one connected to one end of a conductive member and two telescopic members, a conductive plate connected to one end of the telescopic members and a conductor two connected to the conductive plate, wherein the conductor one and the conductor two are in contact with each other.

[0010] Preferably, the telescopic component includes a sleeve, a telescopic rod slidably connected to the sleeve, and a spring connecting the sleeve and the telescopic rod.

[0011] Preferably, the power-off mechanism further includes a magnetic block 1 connected to one end of the conductive element and a magnetic block 2 connected to the conductive plate, and the magnetic block 1 and the magnetic block 2 are magnetically connected.

[0012] Preferably, the power-off mechanism further includes an insulating plate one connected to one end of the conductive component, an insulating plate two connected to the conductive plate, an L-shaped fixing plate connected to the conductive plate, a spring two connected to the fixing plate, and a partition block connected to one end of the spring two. The insulating plate one and the insulating plate two are spaced apart to form a partition channel, and the position of the partition block corresponds to the partition channel.

[0013] The beneficial effects of this utility model are as follows: by cutting the copper busbar into connector one and connector two, with a distance between connector one and connector two and a flexible conductive component connecting them, it is ensured that the overall structure of the copper busbar will not deform or be damaged due to positional shift between connector one and connector two. Furthermore, under the action of the power-off mechanism, the power to connector one and connector two is cut off in time to prevent further damage to the whole structure, thus ensuring the safe use of the low-voltage side busbar of the transformer and preventing abnormal deformation of the low-voltage side busbar of the transformer. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0015] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0016] Figure 2 This is a partial structural diagram of the present invention. Figure 1 ;

[0017] Figure 3 This is a partial structural cross-sectional view of the present invention. Figure 1 ;

[0018] Figure 4 For the present utility model Figure 3 Enlarged schematic diagram of the structure at point A in the middle;

[0019] Figure 5 This is a cross-sectional schematic diagram of the telescopic component structure of this utility model.

[0020] In the diagram: 1. Copper busbar; 101. Connector 1; 102. Connector 2; 2. Conductive component; 201. Conductive connector; 202. Fixing block; 3. Fixing component; 301. Clamping plate 1; 302. Clamping plate 2; 4. Conductor 1; 5. Conductive plate; 6. Conductor 2; 7. Telescopic component; 8. Sleeve; 9. Telescopic rod; 10. Spring 1; 11. Magnetic block 1; 12. Magnetic block 2; 13. Insulating plate 1; 14. Insulating plate 2; 15. Fixing plate; 16. Partition block; 17. Partition passage; 18. Spring 2. Detailed Implementation

[0021] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the following description, in conjunction with specific illustrations, further elaborates on this utility model.

[0022] Reference Figures 1-5 As shown, a device for preventing abnormal deformation of the low-voltage side busbar of a transformer includes a copper busbar 1. The copper busbar 1 is divided into a first connector 101 and a second connector 102. A distance is left between the first connector 101 and the second connector 102, and a flexible conductive element 2 connects them. When the first connector 101 and the second connector 102 shift in position, they will not collide directly due to the distance between them. Furthermore, because the conductive element 2 connecting them is flexible, it can adapt to the positional changes between the first connector 101 and the second connector 102 without damaging itself. The length of the conductive element 2 is greater than the distance between the first connector 101 and the second connector 102. Therefore, when the first connector 101 and the second connector 102 are subjected to... When the discharge affects and the components move a certain distance in opposite directions, the excessive length of the conductive component 2 comes into play, preventing it from breaking due to the increased distance between connector 101 and connector 202. To facilitate the installation of the conductive component 2, both ends of the conductive component 2 are connected to connector 101 and connector 202 respectively via fixing components 3. One end of the conductive component 2 is equipped with a power-off mechanism to cut off the conductive relationship between the conductive component 2 and connector 101. When the discharge between connector 101 and connector 202 is relatively violent and the resulting impact is large, exceeding the adaptive range of the conductive component 2, the power-off mechanism comes into play, and the power between connector 101 and connector 202 is cut off in time to prevent further damage to the whole.

[0023] The conductive component 2 includes a conductive connector 201 that is flexible and has a conductive function, and a fixing block 202 located at both ends of the conductive connector 201. The fixing block 202 is used to fix the endpoints between the conductive connectors 201. In use, the conductive connector 201 is fixedly installed on the fixing block 202.

[0024] When in use, the conductive connector 201 is preferably made of copper flexible connector. Copper flexible connector is a conductive connector 201 formed by fixing the two ends of multiple layers of copper foil or copper sheet by welding or other means. Because the conductive material is mainly copper, it can effectively reduce energy loss, reduce the resistance between connection points, and improve the efficiency of current transmission. Secondly, the structure has good flexibility and foldability. In this utility model, it can better cope with the situation of misalignment between connector 101 and connector 202, and is not affected by the mutual vibration between connector 101 and connector 202.

[0025] The fastener 3 consists of clamping plate 301 and clamping plate 302. Clamping plate 301 is fixedly connected to the end of conductive component 2. Clamping plate 301 and clamping plate 302 are connected by bolts. The connector 101 (connector 2 102) can be clamped and fixed by clamping plate 301 and clamping plate 302, so that the conductive component 2 is connected to the original copper busbar and forms a new conductive whole with the original copper busbar.

[0026] Furthermore, the aforementioned power-off mechanism includes a conductor 4 connected to one end of the conductive member 2 and two telescopic members 7, a conductive plate 5 connected to one end of the telescopic member 7, and a conductor 6 connected to the conductive plate 5. The conductor 4 and the conductor 6 are in contact. When the distance between the connecting member 101 and the connecting member 202 does not exceed the buffering distance of the conductive member 2, the conductor 6 and the conductor 4 are in contact and are in a conductive state. When the distance between the connecting member 101 and the connecting member 202 exceeds the buffering distance of the conductive member 2, the conductor 6 and the conductor 4 are separated and no longer in contact, and are in a non-conductive state.

[0027] The telescopic component 7 includes a sleeve 8, a telescopic rod 9 slidably connected to the sleeve 8, and a spring 10 connected between the sleeve 8 and the telescopic rod 9. In use, the tension of the spring 10 retracts one end of the telescopic rod 9 into the sleeve 8. When both are in their initial state, their conductors 4 and 6 are in contact.

[0028] Furthermore, in order to ensure the stability of the connection between conductor 4 and conductor 6, the power-off mechanism also includes a magnetic block 11 connected to one end of the conductive member 2 and a magnetic block 12 connected to the conductive plate 5. The magnetic block 11 and the magnetic block 12 are magnetically connected, thereby making the conductor 4 and conductor 6 in a contact connection state.

[0029] Furthermore, to ensure that conductor 4 and conductor 6 do not collide again after being separated by an impact force, the power-off mechanism also includes an insulating plate 13 connected to one end of the conductive element 2, an insulating plate 14 connected to the conductive plate 5, an L-shaped fixing plate 15 connected to the conductive plate 5, a spring 18 connected to the fixing plate 15, and a partition block 16 connected to one end of the spring 18. A distance is left between the insulating plate 13 and the insulating plate 14 to form a partition channel 17, and the position of the partition block 16 corresponds to the partition channel 17. In use, when connector 101 and connector 2 102 discharge, the impact force generated by the discharge causes connector 101 and connector 2 102 to separate quickly. When the discharge exceeds the buffering range of conductive component 2, conductive component 2 will pull conductor 4 away from conductor 2 6, and the partition channel 17 between insulating plate 13 and insulating plate 2 14 will gradually increase until the partition block 16 moves into the partition channel 17 under the action of spring 2 18. At this time, conductor 4 and conductor 2 6 are separated, ensuring that conductive component 2 will not cause a safety accident due to damage.

Claims

1. A device for preventing abnormal deformation of the low-voltage side busbar of a transformer, comprising a copper busbar component (1), characterized in that, The copper busbar (1) is cut into connector one (101) and connector two (102). There is a distance between connector one (101) and connector two (102) and a flexible conductive part (2) is connected between them. The length of the conductive part (2) is greater than the distance between connector one (101) and connector two (102). The two ends of the conductive part (2) are connected to connector one (101) and connector two (102) respectively through fixing part (3). One end of the conductive part (2) is provided with a power-off mechanism for cutting off the conductive relationship between the conductive part (2) and connector one (101).

2. The device for preventing abnormal deformation of the low-voltage side busbar of a transformer according to claim 1, characterized in that, The fastener (3) is composed of a first clamp (301) and a second clamp (302). The first clamp (301) is fixedly connected to the end of the conductive component (2), and the first clamp (301) and the second clamp (302) are connected by bolts.

3. The device for preventing abnormal deformation of the low-voltage side busbar of a transformer according to claim 1, characterized in that, The power-off mechanism includes a conductor (4) connected to one end of the conductive member (2) and two telescopic members (7), a conductive plate (5) connected to one end of the telescopic member (7) and a conductor (6) connected to the conductive plate (5), and the conductor (4) and the conductor (6) are in contact with each other.

4. The device for preventing abnormal deformation of the low-voltage side busbar of a transformer according to claim 3, characterized in that, The telescopic component (7) includes a sleeve (8), a telescopic rod (9) slidably connected to the sleeve (8), and a spring (10) connected between the sleeve (8) and the telescopic rod (9).

5. The device for preventing abnormal deformation of the low-voltage side busbar of a transformer according to claim 3, characterized in that, The power-off mechanism also includes a magnetic block one (11) connected to one end of the conductive element (2) and a magnetic block two (12) connected to the conductive plate (5), and the magnetic block one (11) and the magnetic block two (12) are magnetically connected.

6. The device for preventing abnormal deformation of the low-voltage side busbar of a transformer according to claim 3, characterized in that, The power-off mechanism also includes an insulating plate one (13) connected to one end of the conductive member (2), an insulating plate two (14) connected to the conductive plate (5), an L-shaped fixing plate (15) connected to the conductive plate (5), a spring two (18) connected to the fixing plate (15), and a partition block (16) connected to one end of the spring two (18). There is a distance between the insulating plate one (13) and the insulating plate two (14) to form a partition channel (17), and the position of the partition block (16) corresponds to the partition channel (17).

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