Structure of fixing power distribution transformer on-load switch cable

Abstract

This utility model relates to a structure for fixing the on-load switching cable of a distribution transformer, belonging to the field of transformer technology. It includes a distribution transformer with an on-load switching cable mounted on it. A fixing component for limiting the on-load switching cable is provided between the on-load switching cable and the distribution transformer. The fixing component includes either cable fixing assembly I or cable fixing assembly II. Both cable fixing assembly I and cable fixing assembly II include a clamp that is pressed and embedded into the on-load switching cable, and bolts are provided on the clamp for fixing it. This design features a simple structure and good performance. It solves the problem of messy distribution of on-load switching cables on distribution transformers and the resulting safety hazards. The fixing component between the distribution transformer 1 and the on-load switching cable 3 not only achieves the stability and safety of the cable but also improves the flexibility and maintainability of the overall structure, providing a reliable guarantee for practical applications in power engineering.

Description

Technical Field

[0001] This utility model relates to the field of transformer technology, specifically to the structure of an on-load switching cable for a fixed distribution transformer. Background Technology

[0002] A transformer is a device that uses the principle of electromagnetic induction to change alternating current voltage. Its main components are the primary coil, secondary coil, and iron core (magnetic core). Its main functions include voltage transformation, current transformation, impedance transformation, isolation, and voltage stabilization (magnetic saturation transformers). According to their application, they can be divided into: power transformers and special transformers (electric furnace transformers, rectifier transformers, power frequency test transformers, voltage regulators, etc.).

[0003] Based on the capacity and voltage level of the distribution transformer, the cable selection must meet the requirements of safe current carrying capacity, voltage level, and laying environment. Currently, the low-voltage cables of distribution transformers lack fixed supports. During operation, wind swaying and other factors can cause the low-voltage clamps of the distribution transformer to move, leading to clamp overheating. This is also unsightly and affects construction processes and equipment operating safety. When laying on-load switch cables on distribution transformers, the cables need to be secured. Summary of the Invention

[0004] This utility model primarily addresses the shortcomings of existing technologies by providing a structure for fixing on-load switching cables on distribution transformers. This structure is characterized by its simplicity and effectiveness. It solves the problem of disorganized and potentially dangerous on-load switching cables on distribution transformers.

[0005] The above-mentioned technical problems of this utility model are mainly solved by the following technical solutions:

[0006] A structure for fixing an on-load switching cable of a distribution transformer includes a distribution transformer, on which an on-load switching cable is mounted. A fixing component for limiting the on-load switching cable is provided between the on-load switching cable and the distribution transformer. The fixing component includes either cable fixing assembly I or cable fixing assembly II. Both cable fixing assembly I and cable fixing assembly II include clamps that are press-fitted into the on-load switching cable, and bolts are provided on the clamps for fixing them.

[0007] Preferably, the clamp includes a fixing plate II, which has a fixing hole that is connected to the bolt through the hole, and one or both ends of the fixing plate II are provided with a rectangular or arc-shaped groove plate.

[0008] Preferably, a fixing plate I is provided between the clamp and the distribution transformer, which is welded and fixed to the distribution transformer. The fixing plate I is provided with several threaded holes that are threadedly connected to the bolts and adjust the height of the clamp.

[0009] The mounting plate is welded to the distribution transformer, providing a stable support foundation. The mounting plate has several threaded holes for adjusting the clamp height, ensuring the on-load switch cable is securely fixed in different positions. Adjusting the threaded holes allows for the adaptation of on-load switch cables of different lengths while ensuring the cable's perpendicularity to the distribution transformer.

[0010] Preferably, the fixing component further includes a fixing rod, and a clamp is provided between the fixing rod and the on-load switch cable.

[0011] Preferably, the clamp is provided with a pressure groove plate on one or both sides between it and the on-load switch cable for pressing and embedding the on-load switch cable.

[0012] Preferably, the fixing rod has fixing blocks at both ends that are welded and fixed to the distribution transformer, and the fixing rod and the fixing blocks are inserted and welded together.

[0013] This invention can achieve the following effects:

[0014] This utility model provides a structure for fixing the on-load switching cable of a distribution transformer, which, compared with the prior art, features a simple structure and good performance. It solves the problem of messy distribution of on-load switching cables on distribution transformers and the resulting safety hazards. The fixing component between the distribution transformer 1 and the on-load switching cable 3 not only ensures the stability and safety of the cable but also improves the flexibility and maintainability of the overall structure, providing a reliable guarantee for practical applications in power engineering. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model.

[0016] Figure 2 This is a structural schematic diagram of the cable fixing assembly I in this utility model.

[0017] Figure 3 This is a side view of the clamp structure in this utility model.

[0018] Figure 4 This is a top view of the clamp structure in this utility model.

[0019] Figure 5 This is a structural schematic diagram of the cable fixing component II in this utility model.

[0020] In the diagram: 1. Distribution transformer; 2. Cable fixing assembly I; 3. On-load switch cable; 4. Cable fixing assembly II; 5. Fixing block; 6. Fixing rod; 7. Clamp; 8. Cable groove plate; 9. Fixing plate I; 10. Threaded hole; 11. Bolt; 12. Clamp; 13. Fixing plate II; 14. Rectangular groove plate; 15. Fixing hole; 16. Arc groove plate. Detailed Implementation

[0021] The technical solution of this utility model will be further described in detail below through embodiments and in conjunction with the accompanying drawings.

[0022] Example 1: As Figure 1-5 As shown, a structure for fixing an on-load switching cable of a distribution transformer includes a distribution transformer 1, on which an on-load switching cable 3 is mounted. A fixing component for limiting the on-load switching cable 3 is provided between the on-load switching cable 3 and the distribution transformer 1. The fixing component includes a cable fixing assembly I2 or a cable fixing assembly II4. Both cable fixing assembly I2 and cable fixing assembly II4 include a clamp 12 that is press-fitted into the on-load switching cable 3. The clamp 12 includes a fixing plate II13, which has fixing holes 15 that are threaded through bolts 11. One or both ends of the fixing plate II13 have rectangular or circular groove plates 14 or arc-shaped groove plates 16. The clamp 12 has bolts 11 for fixing it. A fixing plate I9, welded to and fixed to the distribution transformer 1, is provided between the clamp 12 and the distribution transformer 1. The fixing plate I9 has several threaded holes 10 that are threaded through bolts 11 and adjust the height of the clamp 12.

[0023] The fixing components between the fixed distribution transformer 1 and the on-load switch cable 3 include two types of cable fixing assemblies: cable fixing assembly I2 and cable fixing assembly II4. The main function of these two assemblies is to ensure the stability and safety of cable 3 on transformer 1.

[0024] The structural components of cable fixing assembly I2 are as follows:

[0025] Clamp 12: It is pressed into the cable 3 to ensure that the cable and clamp are tightly connected.

[0026] Fixing plate 13: A component of clamp 12, used to enhance the mechanical strength of clamp.

[0027] Fixing hole 15: Located on fixing plate II 13, used for through-hole connection with bolt 11.

[0028] Grooving plate 14: A rectangular grooved plate 14 may be provided at one or both ends of the fixing plate II 13 for limiting and fixing the cable.

[0029] Bolt 11: Used to secure clamp 12, ensuring a firm connection between the cable and the transformer.

[0030] Functional characteristics of cable fixing assembly I2:

[0031] Press-fit type splice: The cable 3 is tightly fixed by the clamp 12 to prevent the cable from loosening due to vibration or tension during operation.

[0032] Rectangular groove plate 14: Provides additional mechanical support to prevent the cable from slipping in the clamp.

[0033] Fixing hole 15: Connected to fixing plate I9 by bolt 11 to ensure the stability of the overall structure.

[0034] The structural components of cable fixing assembly II4 are as follows:

[0035] Clamp 12: It is crimped into cable 3 and has the same function as component I2.

[0036] Fixing plate 13: A component of clamp 12, providing mechanical strength.

[0037] Arc-shaped groove plate 16: One or both ends of the fixing plate II 13 may be provided with an arc-shaped groove plate 16 for limiting and fixing the cable.

[0038] Bolt 11: Used to secure clamp 12, ensuring a firm connection between the cable and the transformer.

[0039] Functional features of cable fixing assembly II4:

[0040] Compared with the rectangular grooved plate 14, the arc-shaped grooved plate 16 is more suitable for cables that are not laid in a straight line, and provides a more flexible fixing method.

[0041] Adaptable to different laying environments: The arc groove plate design can better adapt to the bending characteristics of cables and avoid fixation failure caused by cable bending.

[0042] Example 2: Figure 1 As shown, a structure for fixing an on-load switching cable of a distribution transformer includes a distribution transformer 1, on which an on-load switching cable 3 is mounted. A fixing component for limiting the on-load switching cable 3 is provided between the on-load switching cable 3 and the distribution transformer 1. The fixing component also includes a fixing rod 6, and a clamp 7 is provided between the fixing rod 6 and the on-load switching cable 3. A pressure groove plate 8 is provided on one or both sides of the clamp 7 to press-fit the on-load switching cable 3. Fixing blocks 5 are provided at both ends of the fixing rod 6 and welded to the distribution transformer 1. The fixing rod 6 and the fixing blocks 5 are inserted and welded together. Through the combination of the fixing rod 6, clamp 7, pressure groove plate 8, and fixing blocks 5, stable support and limiting protection of the on-load switching cable 3 are achieved.

[0043] In summary, the structure of the on-load switch cable of the fixed distribution transformer is characterized by its simplicity and effectiveness. It solves the problem of messy and potentially dangerous distribution of on-load switch cables in distribution transformers. The fixing components between the fixed distribution transformer 1 and the on-load switch cable 3 not only ensure the stability and safety of the cable but also improve the flexibility and maintainability of the overall structure, providing a reliable guarantee for practical applications in power engineering.

[0044] It will be apparent to those skilled in the art that this invention is not limited to the details of the above exemplary embodiments, and that it can be implemented in other specific forms without departing from the essential characteristics of the 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.

[0045] In summary, the above description is only a specific embodiment of the present utility model, but the structural features of the present utility model are not limited thereto. Any changes or modifications made by those skilled in the art within the scope of the present utility model are covered by the patent scope of the present utility model.

Claims

1. A structure for an on-load switching cable of a fixed distribution transformer, characterized in that: The system includes a distribution transformer (1), on which an on-load switch cable (3) is provided. A fixing component for limiting the on-load switch cable (3) is provided between the on-load switch cable (3) and the distribution transformer (1). The fixing component includes a cable fixing assembly I (2) or a cable fixing assembly II (4). Both the cable fixing assembly I (2) and the cable fixing assembly II (4) include a clamp (12) that is pressed and embedded with the on-load switch cable (3). The clamp (12) is provided with a bolt (11) for fixing the clamp (12).

2. The structure of a fixed distribution transformer on-load switching cable according to claim 1, characterized in that: The clamp (12) includes a fixing plate II (13), which has a fixing hole (15) that is connected to the bolt (11) in a through-hole manner. One or both ends of the fixing plate II (13) are provided with a rectangular groove plate (14) or a circular arc groove plate (16).

3. The structure of a fixed distribution transformer on-load switching cable according to claim 2, characterized in that: The clamp (12) is provided with a fixing plate I (9) that is welded and fixed to the power distribution transformer (1). The fixing plate I (9) is provided with several threaded holes (10) that are threadedly connected to the bolts (11) and adjust the height of the clamp (12).

4. The structure of a fixed distribution transformer on-load switching cable according to claim 1, characterized in that: The fixing component also includes a fixing rod (6), and a clamp (7) is provided between the fixing rod (6) and the on-load switch cable (3).

5. The structure of a fixed distribution transformer on-load switching cable according to claim 4, characterized in that: The clamp (7) is provided with a pressure groove plate (8) between one or both sides of the clamp and the on-load switch cable (3) for pressing and embedding the on-load switch cable (3).

6. The structure of a fixed distribution transformer on-load switching cable according to claim 4, characterized in that: The fixing rod (6) has fixing blocks (5) at both ends that are welded and fixed to the power distribution transformer (1). The fixing rod (6) and the fixing blocks (5) are welded and fixed together by insertion.

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