A power transformer frame

By adopting support components and beam components that combine composite insulation materials and metal materials, the substation structure design was optimized, solving problems such as large footprint, difficult transportation and installation, and wind-induced discharge, thus achieving a balance between economic benefits and technical effectiveness.

CN111864544BActive Publication Date: 2025-12-30JIANGSU SHENMA ELECTRIC CO LTD
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Patent Information

Application Number
CN202010761554.9
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2020-07-31
Publication Date
2025-12-30
Estimated Expiration
2040-07-31

AI Technical Summary

Technical Problem

Existing substation structures have problems such as large footprint, difficulty in transportation and installation, susceptibility to corrosion or cracking, and susceptibility to abnormal discharge under wind deflection conditions.

Method used

The support components and beam components are made of composite insulation materials. The support components include a first support part made of composite insulation material and a second support part made of metal material. The beam components include a side phase section made of composite insulation material and a middle section made of metal material. Combined with flange components, shielding shells and wiring posts, the design of the substation structure is optimized.

Benefits of technology

It reduced the width of the substation structure and land acquisition costs, lowered overall costs, improved transportation and installation efficiency, eliminated wind-induced discharge problems, and achieved maintenance-free operation throughout its entire lifecycle.

✦ Generated by Eureka AI based on patent content.

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Abstract

The application specifically discloses a power transformation framework, comprising: support assemblies, at least two of which are arranged at intervals along a first direction, at least one of the support assemblies comprising a first support part and a second support part connected to each other; a crossbeam assembly erected between two adjacent support assemblies, the crossbeam assembly comprising a middle section and edge sections arranged at both ends of the middle section, the edge sections being composite insulating materials, and the middle section being a metal material; wherein the first support part is located between the crossbeam assembly and the second support part, and the first support part is a composite insulating material. The edge sections are composite insulating materials, have excellent electrical insulation performance, and can directly hang wires, thereby reducing the material usage of structures such as suspension insulators and support assemblies to a certain extent, and since the strain insulator string, the suspension insulator string and the jumper wire are saved, the problem of wind deflection discharge possibly existing in the power transformation framework is eliminated.
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Description

Technical Field

[0001] This application relates to the field of power equipment technology, and in particular to a power substation structure. Background Technology

[0002] As one of the main pieces of equipment in a substation, the substation frame is used to suspend and support conductors to connect switchgear or other electrical equipment.

[0003] Current substation structures are mostly combinations of traditional iron frames with tension insulator strings, suspension insulator strings, and jumpers. These structures suffer from drawbacks such as heavy weight, susceptibility to corrosion and cracking, and large footprint for substations or converter stations, making transportation and installation difficult. Furthermore, they are prone to abnormal discharge accidents under wind-induced deflection conditions. Therefore, a mature substation structure design solution is urgently needed to address these issues. Summary of the Invention

[0004] This application provides a substation structure that can solve the problems of large footprint, difficult transportation, installation and maintenance of existing substation structures.

[0005] To solve the above-mentioned technical problems, one technical solution adopted in this application is to provide a substation frame, including: support components, at least two of which are spaced apart along a first direction, at least one support component including a first support part and a second support part connected to each other; a crossbeam assembly, erected between two adjacent support components, the crossbeam assembly including a middle section and side phase sections disposed at both ends of the middle section, the side phase sections being made of composite insulating material and the middle section being made of metal material; wherein, the first support part is located between the crossbeam assembly and the second support part, and the first support part is made of composite insulating material.

[0006] According to one embodiment of this application, all support components include a first support portion and a second support portion.

[0007] According to one embodiment of this application, the second support is made of a metallic material.

[0008] According to one embodiment of this application, a flange assembly is provided between the support assembly and the beam assembly, and the ends of the support assembly and the beam assembly are respectively connected to the flange assembly; the substation frame includes: a first hanging plate, which is disposed at the connection between the beam assembly and the flange assembly, and the first hanging plate is used to hang wires.

[0009] According to one embodiment of this application, a plurality of openings are provided on the first hanging plate for connecting with the hanging hardware. At least one opening is a waist-shaped hole or an arc-shaped hole, which is used to ensure that after the hanging hardware rotates, the direction of the force exerted by the hanging hardware on the first hanging plate remains intersecting with the center line of the first hanging plate.

[0010] According to one embodiment of this application, it includes: a shielding shell, which is disposed outside the flange assembly.

[0011] According to one embodiment of this application, it includes: wiring posts, which are disposed corresponding to the support assembly. The wiring posts are made of composite insulating material. Each wiring post includes a first end disposed 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 crossbeam assembly. The second ends of all wiring posts are electrically connected to each other. The second end is used to hang a grounding wire. A grounding lead-down wire connects the grounding wire and the grounding point along at least one wiring post.

[0012] According to one embodiment of this application, the intermediate section includes at least two metal pipe fittings, and two adjacent metal pipe fittings are connected by flanges; or, the intermediate section includes metal lattice columns.

[0013] According to one embodiment of this application, the intermediate section is connected to the conductor by a suspension insulator.

[0014] According to one embodiment of this application, three or multiples of three hanging points for hanging wires are provided between two adjacent support components.

[0015] The beneficial effects of this application are as follows: Unlike existing technologies, by using a composite insulating material for the first support section connected to the crossbeam assembly in the support component, which possesses excellent mechanical and electrical insulation properties, the electrical safety distance between the conductor and the support component can be reduced, thereby effectively reducing the width of the substation frame and land acquisition costs. Simultaneously, the second support section uses a metal material, achieving cost reduction. Furthermore, the crossbeam assembly includes a middle section and edge phase sections located at both ends of the middle section. The edge phase sections are made of composite insulating material, possessing excellent electrical insulation properties, and can directly connect to conductors, thus reducing the need for suspension insulators and other structures to a certain extent. Moreover, by saving tension insulator strings, suspension insulator strings, and jumpers, it also eliminates the potential wind-induced discharge problem of the edge phase conductors and reduces the proportion of composite sections in the support component to a certain extent, achieving a balance between economic benefits and technical effectiveness. Additionally, using a metal material for the middle section reduces material costs. Substation frames using composite insulating materials are lightweight, resistant to rust and cracking, have low transportation and installation costs, high efficiency, and can achieve maintenance-free operation throughout their entire lifecycle, reducing the maintenance costs of existing porcelain insulator strings. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort, wherein:

[0017] Figure 1 This is a schematic diagram of the overall structure of one embodiment of the substation architecture of this application;

[0018] Figure 2 This is a three-dimensional structural schematic diagram of yet another embodiment of the substation architecture of this application;

[0019] 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;

[0020] Figure 4 This is a partial structural diagram of another embodiment of the substation frame of this application, mainly used to show the third hanging plate;

[0021] Figure 5 This is a structural schematic diagram of the clamp and the second hanging plate in another embodiment of the substation frame of this application;

[0022] 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;

[0023] 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

[0024] 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.

[0025] 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. The crossbeam assembly 120 is erected between two adjacent support assemblies 110, providing support for the crossbeam assembly 120. The crossbeam assembly 120 is used to connect conductors. The crossbeam assembly 120 includes a middle section 121 and side-phase sections 122 located at both ends of the middle section 121. The side-phase sections 122 are made of composite insulation material, while the middle section 121 is made of metal. In traditional substation structures, crossbeam assemblies are made of metal, requiring a combination of tension insulator strings, suspension insulator strings, and jumpers to connect conductors. In one embodiment, the side-phase sections 122 are made of composite insulation material, possessing excellent electrical insulation performance, allowing direct connection of conductors. This reduces the need for suspension insulators and other structures to some extent. Furthermore, by saving tension insulator strings, suspension insulator strings, and jumpers, it also eliminates the potential for wind-induced discharge in the side-phase conductors. The edge phase section 122, made of composite insulation material, is lightweight, resistant to rust and cracking, and offers high transportation and installation efficiency. It also achieves maintenance-free operation throughout its entire lifespan, reducing the maintenance costs of existing porcelain insulator strings. Furthermore, the middle section 121 is made of metal, further reducing material costs.

[0026] In addition, 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, and the first support portion 111 is made of composite insulating material. Since 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, and thus effectively reducing the width of the substation frame 100 and land acquisition costs. Furthermore, it can reduce the amount of composite insulating material used in the support assembly 110, lowering costs. The support assembly 110 using composite insulating material is lightweight, resistant to rust and cracking, thus solving the problems of difficult transportation, installation, and maintenance, and reducing transportation and installation 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, minimize the electrical safety distance between the conductor and the support component 110, and reduce the width of the substation structure and land acquisition costs.

[0028] Furthermore, such as Figure 1 As shown, the second support part 112 is made of metal, which can reduce costs.

[0029] It should be noted that, as Figure 1As shown, since the middle section 121 is still made of metal, the middle section 121 still needs to be connected to the conductor via a suspension insulator.

[0030] In one embodiment, such as Figure 1 As shown, the intermediate section 121 may include at least two metal fittings 1211, with adjacent metal fittings 1211 connected by flanges. Specifically, the intermediate section 121 may include two, three, or more metal fittings 1211. Furthermore, in other embodiments, the intermediate section 121 may also include only one metal fitting.

[0031] In yet another embodiment, such as Figure 2 As shown, the intermediate section 121 can also be a metal lattice column. Of course, in other embodiments, the intermediate section 121 can also be other structures made of other metal materials, which are not limited here.

[0032] Similarly, as Figure 1 As shown, side segment 122 can be a beam segment, or as... Figure 4 As shown, the side phase segment 122 is composed of at least two crossbeam segments 1221 spliced ​​together. A third flange 1222 is provided at the adjacent ends of the two crossbeam segments 1221. The two third flanges 1222 are connected by a first fastener (not shown in the figure). A third wire-hanging plate 1241 can also be clamped between the two third flanges 1222. The third wire-hanging plate 1241 has two wire-hanging holes 144 and one reserved hole (not shown in the figure). The reserved hole is located directly below the crossbeam assembly 120, and the two wire-hanging holes 144 are symmetrically arranged on both sides of the reserved hole for hanging wires 200.

[0033] 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.

[0034] 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.

[0035] It should be noted that the side phase segment 122 and the first support portion 111 of the beam assembly 120 can adopt a post insulator structure. The post insulator includes an insulator located inside 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 of glass fiber or aramid fiber impregnated with epoxy resin and cured by winding, or a hollow pultruded tube formed by pultrusion; the insulating core rod can be a solid core rod made of glass fiber or aramid fiber impregnated with epoxy resin and cured by winding, or a pultruded core rod formed 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.

[0036] In one embodiment, such as Figure 1 As shown, the crossbeam assembly 120 is gradually raised upwards in a direction away from the two side support assemblies 110 to form an arched crossbeam assembly 120, so that the substation frame 100 can use its own arched structure to counteract vertical sag and reduce safety hazards.

[0037] like 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.

[0038] 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.

[0039] 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 124 at one end. The first flange 132 and the second flange 124 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 124. The first wire hanging plate 141 has two wire hanging holes 144 and a reserved hole. 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.

[0040] In another embodiment, if the side segment 122 of the beam assembly 120 is relatively long, hanging points can be provided on the side segment 122. For example... Figure 5 As shown, the substation frame 100 includes a clamp 123 and a second hanging plate 142. The clamp 123 is spaced on the side phase section 122. The second hanging plate 142 is disposed on the outer wall of the clamp 123. The second hanging plate 142 has several hanging holes 144 for hanging wires. The clamp 123 can be glued and fixed to the side segment 122. The inner wall of the clamp 123 has several spaced first slots 1231 and several spaced second slots 1232. The first slots 1231 are arranged around the outer wall of the side segment 122, and the second slots 1232 are staggered with the first slots 1231. Thus, the first slots 1231 and the second slots 1232 work together to restrict the axial sliding and radial rotation of the clamp 123 on the side segment 122, and maintain the stable connection between the clamp 123 and the side segment 122. At the same time, the staggered arrangement of the first slots 1231 and the second slots 1232 allows the adhesive material to flow fully and evenly in the first slots 1231 and the second slots 1232 when filling, which is beneficial to the glue bonding between the clamp 123 and the side segment 122.

[0041] Specifically, such as Figure 5 As shown, the second hanging plate 142 is integrally formed with the clamp 123. The first slot 1231 and the second slot 1232 on the inner wall of the clamp 123 are vertically arranged. The second hanging plate 142 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.

[0042] like Figure 4As shown, the hanging holes 144 of each hanging plate are used to connect with the hanging hardware 210, and the wire 200 is hung in the hanging hole 144 through 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 external force, after 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 can 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 center line of each hanging plate after the hanging hardware 210 rotates, this application sets at least one hanging hole 144 on each hanging plate as an oblong or arc-shaped hole. After the hanging hardware 210 rotates, it automatically moves within the hanging hole 144, so that the direction of the force exerted by the hanging hardware 210 on each hanging plate remains intersecting the center line of each hanging plate, thereby maintaining the connection stability of each hanging plate, enhancing the stability of the substation frame 100, and extending its service life.

[0043] To ensure the mechanical stability of the substation frame 100, the center line of each hanging plate coincides with the center line of the crossbeam assembly 120. Therefore, the hanging hole 144 is set as an oblong hole or an arc-shaped hole, which ensures that the direction of the force exerted by the hanging hardware 210 on the crossbeam assembly 120 is intersected with the center line of the crossbeam assembly 120.

[0044] 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 and Figure 3 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.

[0045] In addition, such as Figure 6 As shown, a voltage equalization ring 160 is also provided on the side phase segment 122 of the first hanging plate 141 away from the flange assembly 130. The voltage equalization 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 voltage equalization and preventing abnormal discharge.

[0046] Furthermore, at least one side of the second hanging plate 142 may also be 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 second hanging plate 142. Similarly, at least one side of the third hanging plate 1241 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 1241.

[0047] In one embodiment, such as Figure 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°.

[0048] Furthermore, such as Figure 1 like 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.

[0049] The substation frame 100 requires grounding, especially the row substation frame 100. When the side phase segment 122 of 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 sufficient electrical safety distance must be maintained between the grounding wire and the conductor, and lightning protection must also be taken into account. Figure 7As 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 directly hung on the side phase segment 122, which can ensure the electrical safety distance between the ground wire and the conductor and also play a role in lightning protection. Since the wiring posts 150 and the first support part 111 are both made of insulating material, the ground wire needs to be connected to the grounding down conductor 153 to complete the grounding. Since the installation process of connecting the grounding down conductor 153 to the wiring post 150 is relatively complex, after electrically connecting the second end 152 of all 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 the overall grounding of the substation structure 100, which is 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, which is not limited here.

[0050] 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.

[0051] When the electrical safety distance between the first end 151 of the wiring post 150 and the hanging point of the wire on the crossbeam assembly 120 is sufficient, the grounding lead 153 can be set to fit against the wiring post 150.

[0052] In one embodiment, when the substation frame 100 is a row substation frame 100, three or multiples of three connection points for connecting conductors are provided between two adjacent support components 110, such as three, six, or nine. The side phase segments 122 of the support component 110 can be directly connected to conductors, while the middle segment 121 connects conductors via suspension insulators or similar structures. The three adjacent connection points connect to phases A, B, and C respectively, 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, connection points may not be provided at the connection between the flange assembly 130 in the middle position and the crossbeam assemblies 120 on both sides, or connection points may be provided on only one side, or connection points may be provided on both sides provided that the electrical safety distance between the connection points on both sides is met. Furthermore, the connection point between the flange assembly 130 in the middle position and the crossbeam assemblies 120 on both sides requires the wire to be connected by a structure such as a suspension insulator.

[0053] 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.

[0054] 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.

[0055] 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.

[0056] 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 the problems of difficult transportation, installation, and maintenance, and reducing transportation and installation costs.

[0057] Meanwhile, the crossbeam assembly 120 includes a middle section 121 and side phase sections 122 disposed at both ends of the middle section 121. The side phase sections 122 are made of composite insulation material, while the middle section 121 is made of metal. In traditional substation structures, the crossbeam assembly uses an iron frame, requiring a combination of tension insulator strings, suspension insulator strings, or jumpers to connect the conductors. In one embodiment, the side phase sections 122 are made of composite insulation material, possessing excellent electrical insulation performance, allowing direct connection of conductors. This reduces the need for suspension insulators and other structures to some extent. Furthermore, by eliminating the tension insulator strings, suspension insulator strings, and jumpers for the side phase conductors, the potential for wind-induced discharge in the side phase conductors is eliminated, and the proportion of composite sections in the support assembly 110 is reduced to some extent. The side phase sections 122, made of composite insulation material, are lightweight, resistant to rust and cracking, resulting in low transportation and installation costs, high efficiency, and maintenance-free operation throughout their entire lifecycle, reducing the maintenance costs of traditional porcelain insulator strings. Furthermore, the intermediate section 121 is made of metal. The longer the crossbeam assembly 120 is, the higher the load-bearing requirements of the crossbeam assembly 120 will be. Therefore, the specifications (diameter) of the crossbeam assembly 120 will be larger. Due to the special manufacturing characteristics of composite insulation materials, increasing the specifications of the crossbeam assembly 120 will lead to a sharp increase in cost. Therefore, the intermediate section 121 is made of metal and the side phase section 122 is made of composite insulation materials, which can best coordinate the performance and price of the substation frame 100.

[0058] 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 substation structure comprises: a plurality of support assemblies arranged at intervals along 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 comprising a middle section and edge sections arranged at both ends of the middle section, the edge sections being composite insulating materials, the middle section being a metal material, the middle section being hung with a conductor via a suspension insulator, the middle section comprising at least two metal pipes connected via flanges; or the middle section comprising a metal lattice column; wherein the first support part is arranged between the crossbeam assembly and the second support part, the first support part being a composite insulating material, and the second support part being a metal material; a flange assembly arranged between the support assembly and the crossbeam assembly, the end of the support assembly and the end of the crossbeam assembly being connected to the flange assembly; and a first wire hanging plate arranged at the connection between the crossbeam assembly and the flange assembly, the first wire hanging plate being used for hanging a conductor.

2. The transformer platform of claim 1, wherein, A plurality of openings are arranged on the first wire hanging plate, the openings being used for connecting to wire fittings, at least one of the openings being a waist-shaped hole or an arc-shaped hole, so that the wire fittings are rotated and the direction of the force applied by the wire fittings to the first wire hanging plate remains intersecting with the center line of the first wire hanging plate.

3. The power transformation framework of claim 1, wherein, The substation structure further comprises: a shielding shell arranged outside the flange assembly.

4. The transformer platform of claim 1, wherein, The substation structure further comprises: a plurality of wiring columns arranged corresponding to the support assemblies, the wiring columns being composite insulating materials, 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, the second ends being used for hanging ground wires, and a grounding down conductor connecting the ground wires and a grounding point along at least one of the wiring columns.

5. The transformer platform of claim 1, wherein, Three or a multiple of three wire hanging points for hanging conductors are arranged between two adjacent support assemblies.

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