A power transformer frame

Abstract

The application specifically discloses a power transformation framework, which comprises support assemblies, at least two of which are arranged at intervals along a first direction, at least one of the support assemblies comprises a first support part and a second support part which are connected to each other, and a crossbeam assembly which is erected between two adjacent support assemblies; wherein the first support part is located between the crossbeam assembly and the second support part, the first support part is made of composite insulating material, and the second support part is made of metal material. Since the first support part connected to the crossbeam assembly is made of composite insulating material, the first support part has excellent electrical insulation performance, so that the electrical safety distance between the conductor and the support assembly can be reduced, thereby effectively reducing the width of the power transformation framework and the land acquisition cost, and meanwhile, the second support part is made of metal material, so that the cost can be reduced. In addition, the support assembly with the above-mentioned composite structure is light in weight, not prone to rust and cracking, and the problems of difficult transportation, installation and maintenance are solved correspondingly, and the transportation and installation cost is reduced.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of power transformation equipment, in particular to a power transformation framework. BACKGROUND

[0002] The power transformation framework is one of the main equipment in a power transformation station, and is used for suspending and supporting conductors to connect switch devices or other electrical devices.

[0003] The current power transformation framework is mostly a combination of a traditional iron framework, a tension insulator string, a suspension insulator string and a jumper, and has defects such as heavy quality, easy rusting or cracking. In addition, for a power transformation station or a converter station, the framework also has problems such as large occupied area, difficult transportation and installation, and the like. Therefore, a mature power transformation framework design scheme is urgently needed to solve the above problems. SUMMARY

[0004] The present application provides a power transformation framework, which can solve the problems of large occupied area, difficult transportation and installation and maintenance of the existing power transformation framework.

[0005] To solve the above technical problems, one technical scheme of the present application provides a power transformation framework, which comprises: support assemblies, at least two of which are arranged at intervals along a first direction, and at least one support assembly comprises a first support part and a second support part connected to each other; and a crossbeam assembly erected between two adjacent support assemblies; wherein the first support part is located between the crossbeam assembly and the second support part, and the first support part is made of a composite insulating material, and the second support part is made of a metal material.

[0006] According to an embodiment of the present application, all the support assemblies comprise the first support part and the second support part.

[0007] According to an embodiment of the present application, the crossbeam assembly is made of a composite insulating material.

[0008] According to an embodiment of the present application, a flange assembly is arranged between the support assembly and the crossbeam assembly, and the end of the support assembly and the end of the crossbeam assembly are connected to the flange assembly, and the power transformation framework comprises: a first wire hanging plate arranged at the connection between the crossbeam assembly and the flange assembly, and the first wire hanging plate is provided with a wire hanging hole for hanging a conductor.

[0009] According to an embodiment of the present application, a shielding shell is arranged outside the flange assembly.

[0010] According to an embodiment of the present application, the crossbeam assembly comprises at least two crossbeam segments, and two adjacent crossbeam segments are connected by a flange, and the power transformation framework comprises: a second wire hanging plate arranged at the flange between two adjacent crossbeam segments, and the second wire hanging plate is provided with a wire hanging hole for hanging a conductor.

[0011] According to an embodiment of the present application, the clamp is sleeved on the cross beam assembly, and the third wire hanging plate is arranged on the outer wall of the clamp.

[0012] According to an embodiment of the present application, the inner wall of the clamp is provided with a plurality of first grooves and a plurality of second grooves, the first grooves are arranged around the outer wall of the cross beam assembly, and the second grooves are arranged alternately with the first grooves.

[0013] According to an embodiment of the present application, the wire hanging hole is used for connecting with the wire hanging fitting, at least one of the wire hanging holes is a waist-shaped hole or an arc-shaped hole, and after the wire hanging fitting is rotated, the direction of the force of the wire hanging fitting on the cross beam assembly remains intersecting with the center line of the cross beam assembly.

[0014] According to an embodiment of the present application, the wire column is arranged corresponding to the support assembly, the wire column is made of composite insulating material, the wire column includes a first end arranged on the support assembly and a second end opposite to the first end, the height of the second end is higher than the height of the cross beam assembly, the second ends of all the wire columns are electrically connected, and the second end is used for hanging the ground wire.

[0015] According to an embodiment of the present application, the cross beam assembly gradually rises upward in the direction away from the two side support assemblies to form an arched cross beam assembly.

[0016] The present application has the following beneficial effects: Different from the prior art, the first support part connected with the cross beam assembly in the support assembly is made of composite insulating material, which has excellent electrical insulation performance, thereby reducing the electrical safety distance between the wire and the support assembly, effectively reducing the width of the transformer structure and the land acquisition cost, and the second support part is made of metal material, which can reduce the cost. In addition, the above-mentioned composite structure of the support assembly is light in weight, not easy to rust and crack, and the problems of transportation, installation and maintenance are solved, and the transportation and installation cost is reduced. BRIEF DESCRIPTION OF DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed in the embodiment description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0018] Figure 1 is a whole structure schematic diagram of an embodiment of the transformer structure of the present application;

[0019] Figure 2This is a top view of one embodiment of the substation structure of this application;

[0020] Figure 3 This is a partial structural diagram of an embodiment of the substation frame of this application, mainly used to show the first hanging plate;

[0021] Figure 4 This is a partial structural diagram of an embodiment of the substation frame of this application, mainly used to show the second hanging plate;

[0022] Figure 5 This is a structural schematic diagram of the clamp and the third hanging plate in another embodiment of the substation frame of this application;

[0023] Figure 6 This is a partial structural schematic diagram of an embodiment of the substation structure of this application, mainly used to illustrate the equalizing ring;

[0024] Figure 7 This is a schematic diagram of the overall structure of a row of substations in another embodiment of the substation structure of this application. Detailed Implementation

[0025] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0026] One embodiment of this application provides a substation structure 100, such as... Figure 1 and Figure 2As shown, the structure includes a support assembly 110 and a crossbeam assembly 120. At least two support assemblies 110 are spaced apart along a first direction, and the crossbeam assembly 120 is erected between adjacent support assemblies 110, providing support for the crossbeam assembly 120. The crossbeam assembly 120 is used to connect conductors. At least one support assembly 110 includes a first support portion 111 and a second support portion 112 connected to each other. The first support portion 111 is located between the crossbeam assembly 120 and the second support portion 112. The first support portion 111 is made of composite insulating material, and the second support portion 112 is made of metal. Because the first support portion 111 connected to the crossbeam assembly 120 is made of composite insulating material, it has excellent electrical insulation performance, thereby reducing the electrical safety distance between the conductor and the support assembly 110, effectively reducing the width of the substation structure 100 and land acquisition costs. Meanwhile, the second support portion 112 is made of metal, which helps to reduce costs. In addition, the supporting components 110 of the above-mentioned composite structure are lightweight, not easy to rust or crack, which solves the problems of difficult transportation, installation and maintenance, and reduces transportation, installation and maintenance costs.

[0027] To further reduce the width of the substation frame 100, such as Figure 1 As shown, all support components 110 include a first support part 111 and a second support part 112. The first support part 111 is made of composite insulation material to give full play to its electrical insulation performance and minimize the electrical safety distance between the conductor and the support component 110, thereby reducing the width of the substation structure and land acquisition costs.

[0028] Because the crossbeam assembly 120 in a traditional substation frame 100 is made of metal, a combination of tension insulator strings, suspension insulator strings, or jumpers is required to connect the conductors, resulting in a relatively high overall height for the substation frame 100. In one embodiment, such as Figure 1 As shown, the crossbeam assembly 120 is made of composite insulation material, which has excellent electrical insulation performance and can directly connect to conductors without the need for suspension insulators or other structures. Since the conductor's height above ground is constant, eliminating the need for suspension insulators and other conductor-connecting structures can reduce the overall height of the substation frame 100 and reduce the material usage of suspension insulators and other structures and support components 110. Furthermore, by saving on tension insulator strings, suspension insulator strings, and jumpers, the potential wind-induced discharge problem of the substation frame 100 can be eliminated. The substation frame 100 using composite insulation material is lightweight, not prone to rust and cracking, has high transportation and installation efficiency, and can achieve maintenance-free operation throughout its entire life cycle, reducing the maintenance costs of the original porcelain insulator strings.

[0029] In one embodiment, such as Figure 1 As shown, there are two support components 110 spaced apart along the first direction. In this case, the substation frame 100 is a single-span substation frame 100.

[0030] In yet another embodiment, such as Figure 7 As shown, at least three, for example three, four or more, support components 110 are spaced apart along the first direction, and at this time the substation frame 100 is a row substation frame 100.

[0031] It should be noted that the beam assembly 120 and the first support portion 111 can adopt a post insulator structure, which includes an internal insulator and a rubber shed covering the insulator. Specifically, the insulator can be an insulating tube or an insulating core rod. The insulating tube can be a fiberglass tube made by winding and curing epoxy resin impregnated with glass fiber or aramid fiber, or a hollow pultruded tube made by pultrusion; the insulating core rod can be a solid core rod made by winding and curing epoxy resin impregnated with glass fiber or aramid fiber, or a pultruded core rod made by pultrusion; the rubber shed can be made of high-temperature vulcanized silicone rubber, or other forms of rubber material. In other embodiments, the beam assembly 120 and the first support portion 111 can also be other composite insulating materials, which are not limited here.

[0032] In one embodiment, such as Figure 1 As shown, the crossbeam assembly 120 gradually rises upwards in a direction away from the side support assemblies 110 to form an arched crossbeam assembly 120, allowing the substation frame 100 to use its own arched structure to counteract vertical sag and reduce safety hazards. Figure 1 and Figure 3 As shown, a flange assembly 130 is provided between the support assembly 110 and the beam assembly 120. The ends of the support assembly 110 and the beam assembly 120 are respectively connected to the flange assembly 130. The flange assembly 130 includes a cylinder 133, the axis of which is inclined upward and forms an acute angle with the horizontal plane, thereby ensuring that the cylinder 133 has an upward pre-arching tendency after installation. When the flange assembly 130 is connected to the beam assembly 120, a linked pre-arching angle can be generated, so that the beam assembly 120 can be gradually raised upward in a direction away from the two support assemblies 110 to form an arched beam assembly 120.

[0033] like Figure 1 and Figure 3 As shown, the substation frame 100 also includes a first hanging plate 141, which is disposed at the connection between the crossbeam assembly 120 and the flange assembly 130. The first hanging plate 141 has several hanging holes 144 for hanging wires.

[0034] Specifically, such as Figure 1 and Figure 3As shown, the flange assembly 130 has a first flange 132 at one end, and the beam assembly 120 has a second flange 123 at one end. The first flange 132 and the second flange 123 are connected by a first fastener (not shown in the figure), and a first wire hanging plate 141 is sandwiched between the first flange 132 and the second flange 123. The first wire hanging plate 141 has two wire hanging holes 144 and one reserved hole (not shown in the figure), wherein the reserved hole is located directly below the beam assembly 120, and the two wire hanging holes 144 are symmetrically arranged on both sides of the reserved hole.

[0035] In one embodiment, such as Figure 1 and Figure 4 As shown, the crossbeam assembly 120 includes at least two crossbeam segments 121, such as two, three or more, with adjacent crossbeam segments 121 connected by flanges. The substation frame 100 includes a second hanging plate 142, which is disposed at the flange between adjacent crossbeam segments 121. The second hanging plate 142 has several hanging holes 144 for hanging wires 200.

[0036] Specifically, such as Figure 1 and Figure 4 As shown, the crossbeam assembly 120 includes two crossbeam segments 121, with a third flange 124 connected to the adjacent ends of the two crossbeam segments 121 respectively. A second hanging plate 142 is sandwiched between the two third flanges 124. The second hanging plate 142 has two hanging holes 144 and a reserved hole, wherein the reserved hole is located directly below the crossbeam assembly 120, and the two hanging holes 144 are symmetrically arranged on both sides of the reserved hole.

[0037] In another embodiment, the beam assembly 120 may not be segmented, meaning the entire beam assembly 120 is a long strip-shaped composite post insulator. For example... Figure 5As shown, the substation frame 100 includes a clamp 122 and a third hanging plate 143. The clamp 122 is spaced on the crossbeam assembly 120. The third hanging plate 143 is disposed on the outer wall of the clamp 122. The third hanging plate 143 has several hanging holes 144 for hanging wires. The clamp 122 can be glued and fixed to the crossbeam assembly 120. The inner wall of the clamp 122 has several spaced first slots 1221 and several spaced second slots 1222. The first slots 1221 are arranged around the outer wall of the crossbeam assembly 120, and the second slots 1222 are staggered with the first slots 1221. Thus, the first slots 1221 and the second slots 1222 work together to restrict the axial sliding and radial rotation of the clamp 122 on the crossbeam assembly 120, and maintain the stable connection between the clamp 122 and the crossbeam assembly 120. At the same time, the staggered arrangement of the first slots 1221 and the second slots 1222 allows the adhesive material to flow fully and evenly in the first slots 1221 and the second slots 1222 when filling, which is conducive to the glue bonding between the clamp 122 and the crossbeam assembly 120.

[0038] Specifically, such as Figure 5 As shown, the third hanging plate 143 is integrally formed with the clamp 122. The first slot 1221 and the second slot 1222 on the inner wall of the clamp 122 are set vertically. The third hanging plate 143 has two hanging holes 144 and a reserved hole. The reserved hole is located directly below the crossbeam assembly 120. The two hanging holes 144 are symmetrically arranged on both sides of the reserved hole.

[0039] Of course, in other implementations, multiple crossbeam segments 121 can be spliced ​​together and combined with clamps 122. For example, the crossbeam assembly 120 includes a long crossbeam segment 121 and a short crossbeam segment 121. The long crossbeam segment 121 and the short crossbeam segment 121 are spliced ​​together by flanges, and a second hanging plate 142 is provided at the flange. A clamp 122 is fitted on the long crossbeam segment 121. The specific implementation method can be selected according to the actual situation, and there is no limitation here.

[0040] like Figure 4As shown, the hanging holes 144 of each hanging plate are used to connect with the hanging hardware 210. Normally, the hanging holes 144 on the hanging plate for hanging the hanging hardware 210 are circular. However, considering that the hanging hardware 210 may rotate at a certain angle under the action of external force, when the hanging hardware 210 rotates, the direction of the force between the hanging hardware 210 and each hanging plate cannot intersect with the center line of each hanging plate. That is, a torque is generated on each hanging plate. This force will cause the connection to loosen or even reduce the support life. To ensure that the direction of the force between the hanging hardware 210 and each hanging plate remains intersecting the centerline of each hanging plate after rotation, this application sets at least one hanging hole 144 on each hanging plate as an oblong or arc-shaped hole. After rotation, the hanging hardware 210 automatically moves within the hanging hole 144, maintaining the direction of the force exerted by the hanging hardware 210 on each hanging plate intersecting the centerline of each hanging plate. This maintains the connection stability of each hanging plate, enhances the stability of the substation frame 100, and extends its service life. To ensure the mechanical stability of the substation frame 100, the centerline of each hanging plate coincides with the centerline of the crossbeam assembly 120. Therefore, setting the hanging hole 144 as an oblong or arc-shaped hole ensures that the direction of the force exerted by the hanging hardware 210 on the crossbeam assembly 120 remains intersecting the centerline of the crossbeam assembly 120.

[0041] The flange assembly 130, located between the support assembly 110 and the beam assembly 120, has many irregular contours and is close to the first hanging plate 141, making it prone to abnormal discharge near a strong electric field. For example... Figure 1 As shown, the substation frame 100 also includes a shielding shell 131, which covers the outside of the flange assembly 130 to prevent abnormal discharge.

[0042] In addition, such as Figure 6 As shown, on the side of the first hanging plate 141 away from the flange assembly 130, an equalizing ring 160 is also provided on the crossbeam assembly 120. The equalizing ring 160 can evenly distribute the high voltage around it, ensuring that there is no potential difference between the different parts of the ring, thereby achieving the effect of equalizing voltage and preventing abnormal discharge.

[0043] Furthermore, such as Figure 6 As shown, at least one side of the second hanging plate 142 is also provided with an equalizing ring 160 to uniformly distribute the electric field and prevent discharge. Preferably, both sides of the second hanging plate 142 are provided with equalizing rings 160.

[0044] Similarly, at least one side of the third hanging plate 143 is also provided with an equalizing ring (not shown in the figure) to uniformize the electric field and prevent discharge. Preferably, equalizing rings are provided on both sides of the third hanging plate 143.

[0045] In one embodiment, such asFigure 1 and Figure 2 As shown, each support assembly 110 includes two main support columns 113, each main support column 113 including a first support portion 111 and a second support portion 112, the first support portion 111 being made of composite insulating material. The two main support columns 113 are respectively connected to the flange assembly 130, the plane containing the axes of the two main support columns 113 is perpendicular to the first direction, and the two main support columns 113 form an included angle of 5°-70°.

[0046] Furthermore, such as Figure 2 As shown, of the two support assemblies 110 located on both sides, at least one of the support assemblies 110 further includes an inclined support column 114. The inclined support column 114 is connected to the flange assembly 130 and includes a first support portion 111 and a second support portion 112. The first support portion 111 is made of composite insulating material. The inclined support column 114 is located outside the plane of the two main support columns 113 to limit the offset of the substation frame 100 along the first direction. It should be noted that the inclined support column 114 is positioned away from the beam assembly 120.

[0047] The substation frame 100 requires grounding, especially the row substation frame 100. When the crossbeam assembly 120 is made of composite insulation material and can be directly connected to conductors, the method of connecting the grounding wire is particularly important because the grounding wire must maintain a sufficient electrical safety distance from the conductors and also take into account lightning protection. For example... Figure 7 As shown, in one embodiment, the substation frame 100 further includes wiring posts 150, which are correspondingly arranged with the support assembly 110. The wiring posts 150 are made of composite insulating material and include a first end 151 disposed on the support assembly 110 and a second end 152 opposite to the first end 151. The height of the second end 152 is higher than the height of the crossbeam assembly 120. The second end 152 of the wiring post 150 is used to hang the grounding wire. The second ends 152 of each wiring post 150 are electrically connected to each other. By setting the wiring posts 150, and because the second end 152 of the wiring posts 150 is higher than the height of the crossbeam assembly 120, the second end 152 of the wiring posts 150 is higher than the height of the conductor, which can ensure the electrical safety distance between the ground wire and the conductor, and also play a role in lightning protection. Since both the wiring post 150 and the first support part 111 are made of insulating material, the ground wire needs to be connected to the grounding down conductor 153 to complete the grounding. Because the installation process of connecting the grounding down conductor 153 to the wiring post 150 is relatively complex, after electrically connecting the second ends 152 of all the wiring posts 150, it is only necessary to connect the grounding down conductor 153 along one of the wiring posts 150 to the grounding point to achieve overall grounding of the substation structure 100, making the installation process convenient. Of course, in other embodiments, the grounding down conductor 153 can also be connected to the grounding point along multiple or all of the wiring posts 150; this is not a limitation.

[0048] To ensure a stable connection between the wiring post 150 and the beam assembly 120, the direction of the wiring post 150 is aligned with the axis of the support assembly 110, meaning the wiring post 150 is vertically mounted on the beam assembly 120, and the axial direction of the wiring post 150 is consistent with its gravitational direction. The wiring post 150 can be stably mounted on the support assembly 110. Specifically, the wiring post 150 is mounted on the flange assembly 130 between the support assembly 110 and the beam assembly 120.

[0049] When the electrical safety distance between the first end 151 of the wiring post and the hanging point of the wire on the crossbeam assembly 120 is sufficient, the grounding down conductor 153 can be set to fit against the wiring post 150.

[0050] In one embodiment, when the substation frame 100 is a row substation frame 100, three or a multiple of three connection points for connecting wires are provided between two adjacent support components 110, such as three, six, or nine. The three adjacent connection points are respectively connected to phases A, B, and C, and sufficient intra-phase electrical safety distances must be maintained between phases A, B, and C. It should be noted that, to ensure electrical safety distances between adjacent connection points, when the substation frame 100 is a row substation frame 100, no connection point is provided at the connection between the flange assembly 130 in the middle position and the crossbeam assemblies 120 on both sides, or a connection point is provided only on one side.

[0051] In addition, the two nearest hanging points on both sides of the support component 110 located in the middle position must meet the phase-to-phase safe electrical distance of the conductors connected to the substation frame 100.

[0052] It should be noted that when the distance between the conductor connected to the nearest hanging point of the support component 110 and the support component 110 does not meet the safe electrical distance between the grounding down conductor 153 and the conductor, an additional support structure is required to ensure the safe electrical distance between the grounding down conductor 153 and the conductor connected to the hanging point. The distance between the grounding down conductor 153 and the conductor must be greater than the first preset value.

[0053] Specifically, a post insulator (not shown in the figure) is provided at the connection end between the wiring post 150 and the support assembly 110. The post insulator includes a near end and a far end opposite to the near end of the support assembly 110. The distance between the far end and the conductor is greater than a first preset value. The grounding down conductor 153 is connected from the second end 152 of the wiring post 150 to the far end and then led down to the ground, thereby ensuring a safe electrical distance between the grounding down conductor 153 and the conductor connected to the connection point.

[0054] In summary, by using a composite insulating material for the first support portion 111 connected to the crossbeam assembly 120 in the support assembly 110, which has excellent electrical insulation properties, the electrical safety distance between the conductor and the support assembly 110 can be reduced, thereby effectively reducing the width of the substation frame 100 and land acquisition costs. Meanwhile, the second support portion 112 is made of metal, which further reduces costs. In addition, the aforementioned composite structure support assembly 110 is lightweight, resistant to rust and cracking, thus solving transportation, installation, and maintenance problems and reducing transportation and installation costs.

[0055] Meanwhile, the crossbeam assembly 120 uses composite insulation material, which has excellent mechanical and electrical insulation properties. It can directly connect to the conductor without the need for suspension insulators. Since the conductor's height above the ground is constant, eliminating the suspension insulators reduces the overall height of the substation frame 100 and the amount of material used for suspension insulators and supporting components 110. Furthermore, eliminating tension insulator strings, suspension insulator strings, and jumpers eliminates the potential for wind-induced discharge in the substation frame 100. The substation frame 100 using composite insulation material is lightweight, resistant to rust and cracking, has low transportation and installation costs, high efficiency, and can achieve maintenance-free operation throughout its entire life cycle, reducing the maintenance costs of the original porcelain insulator strings.

[0056] The above description is merely an embodiment of this application and does not limit the patent scope of this application. Any equivalent structural or principle transformations made based on the content of this application's specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this application.

Claims

1. A power transformer framework, characterized by The utility model relates to a power transformation frame, comprising: a plurality of support assemblies arranged in a first direction, each of the support assemblies comprising a first support part and a second support part connected to each other; a crossbeam assembly arranged between two adjacent support assemblies, the crossbeam assembly being made of composite insulating material; wherein the first support part is located between the crossbeam assembly and the second support part, the first support part being made of composite insulating material, and the second support part being made of metal material; a flange assembly arranged between the support assemblies and the crossbeam assembly, the ends of the support assemblies and the ends of the crossbeam assembly being connected to the flange assembly, the power transformation frame comprising: a first wire hanging plate arranged at the connection between the crossbeam assembly and the flange assembly, the first wire hanging plate being provided with wire hanging holes for hanging wires; a hoop arranged on the crossbeam assembly, the inner wall of the hoop being provided with a plurality of first grooves arranged at intervals and a plurality of second grooves arranged at intervals, the first grooves being arranged around the outer wall of the crossbeam assembly, and the second grooves being arranged alternately with the first grooves, the first grooves and the second grooves being used for filling adhesive material; a third wire hanging plate arranged on the outer wall of the hoop, the third wire hanging plate being provided with wire hanging holes for hanging wires.

2. The transformer platform of claim 1, wherein, The utility model further comprises: a shielding shell arranged outside the flange assembly.

3. The transformer platform of claim 1, wherein, The crossbeam assembly comprises at least two crossbeam segments, and two adjacent crossbeam segments are connected by a flange, the power transformation frame comprising: a second wire hanging plate arranged at the flange between two adjacent crossbeam segments, the second wire hanging plate being provided with wire hanging holes for hanging wires.

4. The transformer platform according to any of claims 1-3, characterized in that, The wire hanging holes are used for connecting to wire hanging fittings, at least one of the wire hanging holes being a waist-shaped hole or an arc-shaped hole, so that the direction of the force exerted by the wire hanging fitting on the crossbeam assembly remains intersecting with the center line of the crossbeam assembly after the wire hanging fitting is rotated.

5. The transformer platform of claim 1, wherein, The utility model further comprises: wiring columns arranged corresponding to the support assemblies, the wiring columns being made of composite insulating material, each of the wiring columns comprising a first end arranged at the support assembly and a second end opposite to the first end, the height of the second end being higher than the height of the crossbeam assembly, the second ends of all the wiring columns being electrically connected to each other, and the second ends being used for hanging ground wires, the ground wires being connected to grounding points through grounding downlead wires along at least one of the wiring columns.

6. The transformer platform of claim 1, wherein, The crossbeam assembly gradually rises upwards in a direction away from the support assemblies on both sides to form an arched crossbeam assembly.

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