A power transformer frame

Abstract

The application specifically discloses a power transformation framework, which comprises support assemblies, at least three of which are arranged at intervals along a first direction; beam assemblies, which are erected between two adjacent support assemblies, and are at least partially made of composite insulating material; and wiring columns, which are arranged in correspondence with the support assemblies and are made of composite insulating material, and each of the wiring columns comprises a first end arranged on a support assembly and a second end opposite to the first end, the height of the second end is higher than that of the beam assembly, the second ends of all the wiring columns are electrically connected, and at least one of the wiring columns is used for hanging a grounding down lead. By arranging the wiring columns and due to the fact that the second ends of the wiring columns are higher than the height of the beam assembly, the second ends of the wiring columns are higher than the height of the conductors, which can not only ensure the electrical safety distance between the ground wire and the conductors, but also play a role in lightning protection. After the second ends of all the wiring columns are electrically connected, the grounding down lead can be connected to a grounding point along one of the wiring columns, so that the overall grounding of the power transformation framework can be realized.

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, if the iron beams of the substation structure were to be replaced with insulating materials, there are currently no suitable solutions available for connecting grounding down conductors. 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 solves the problem that there is currently no solution on the market for connecting grounding down conductors that are compatible with insulated crossbeam assemblies.

[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 three of which are spaced apart along a first direction; crossbeam components, erected between two adjacent support components, the crossbeam components being at least partially made of composite insulating material; wiring posts, corresponding to the support components, the wiring posts being made of composite insulating material, each wiring post including a first end disposed on the support component and a second end opposite to the first end, the height of the second end being higher than the height of the crossbeam components, the second ends of all wiring posts being electrically connected to each other, the second ends being used to hang grounding wires, and grounding down conductors connecting the ground wire and the grounding point along at least one wiring post.

[0006] According to one embodiment of this application, the wiring post and the axis of the support assembly are located on the same straight line.

[0007] According to one embodiment of this application, the grounding down conductor is attached to the wiring post.

[0008] According to one embodiment of this application, each support component includes a first support portion and a second support portion that are connected to each other. The first support portion is located between the crossbeam component and the second support portion. The first support portion is made of composite insulating material, and the second support portion is made of metal material.

[0009] According to one embodiment of this application, the entire beam assembly is made of composite insulating material.

[0010] 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.

[0011] According to one embodiment of this application, the distance between the grounding lead and the conductor is greater than a first predetermined value.

[0012] According to one embodiment of this application, a post insulator is provided at the connection end between the wiring post and the support assembly. The post insulator includes a proximal end disposed on the support assembly and a distal end opposite to the proximal end. The distance between the distal end and the conductor is greater than a first predetermined value. The grounding down conductor is connected from the second end of the wiring post to the distal end.

[0013] According to one embodiment of this application, the crossbeam assembly includes at least two crossbeam segments, with adjacent crossbeam segments connected by flanges. The substation frame includes a second hanging plate, which is disposed at the flange between two adjacent crossbeam segments and is used to hang wires.

[0014] According to one embodiment of this application, it includes: a clamp, which is spaced and sleeved on the crossbeam assembly; and a third wire hanging plate, which is disposed on the outer wall of the clamp and is used to hang wires.

[0015] The beneficial effects of this application are as follows: By setting up wiring posts, and because the second end of the wiring post is higher than the height of the crossbeam assembly, thus the second end of the wiring post is higher than the height of the conductor, both the electrical safety distance between the ground wire and the conductor can be guaranteed, and it can also serve as a lightning protection function. Since both the wiring posts and the first support are made of insulating materials, the ground wire needs to be connected to a grounding down conductor to complete the grounding. Because the installation process of hanging the grounding down conductor on the wiring post is relatively complex, after electrically connecting the second ends of all wiring posts, it is only necessary to connect the grounding down conductor along one of the wiring posts to the grounding point to achieve the overall grounding of the substation structure, making the installation process convenient. 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 accompanying 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 side view of the support components of an embodiment of the substation structure of this application;

[0019] Figure 3 This is a partial structural diagram of another embodiment of the substation frame of this application, mainly used to show two adjacent support components and the crossbeam component between them;

[0020] Figure 4 This is a partial structural diagram of another embodiment of the substation frame of this application, mainly used to show two adjacent support components and the crossbeam component between them;

[0021] Figure 5 This is a partial structural diagram of an embodiment of the substation frame of this application, mainly used to show the first hanging plate;

[0022] Figure 6 This is a structural schematic diagram of two adjacent crossbeam segments in one embodiment of the substation frame of this application;

[0023] Figure 7 This is a structural schematic diagram of the clamp and the third hanging plate in another embodiment of the substation frame of this application;

[0024] Figure 8 This is a partial structural diagram of one embodiment of the substation structure of this application, mainly used to illustrate the equalizing ring. 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 1As shown, the structure includes support components 110 and crossbeam components 120. At least three support components 110 are spaced apart along a first direction. Crossbeam components 120 are erected between adjacent support components 110, providing support to the crossbeam components 120. The crossbeam components 120 are used to connect conductors. In traditional substation structures, the crossbeam components use iron frames, requiring a combination of tension insulator strings, suspension insulator strings, and jumpers to connect conductors. In one embodiment, the crossbeam components 120 are at least partially made of composite insulation material, possessing excellent electrical insulation properties, allowing direct connection of conductors. This reduces the material usage of structures such as suspension insulators and support components 110 to a certain extent. Furthermore, by eliminating tension insulator strings, suspension insulator strings, and jumpers, the potential wind-induced discharge problem in the substation structure 100 can be eliminated. The 120 beam assembly, made of 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.

[0027] The substation frame 100 requires grounding, especially for a row of substation frames 100 with at least three support components 110 spaced apart along the first direction. When at least part 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 the grounding wire must maintain a sufficient electrical safety distance from the conductors and also take into account lightning protection. Figure 1 As shown, in one embodiment, the substation frame 100 further includes wiring posts 150, which are correspondingly disposed 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, and the second ends 152 of the wiring posts 150 are electrically connected. 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 conductors, which can ensure the electrical safety distance between the ground wire and the conductors and also serve as a lightning protection function. Since the wiring post 150 is 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 wiring post 150 to the grounding down conductor 153 is relatively complex, after electrically connecting the second ends 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 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 here.

[0028] To ensure a stable connection between the wiring post 150 and the crossbeam assembly 120, the axial direction of the wiring post 150 is aligned with the axis of the support assembly 110. That is, the wiring post 150 is vertically mounted on the crossbeam assembly 120, and the axial direction of the wiring post 150 is consistent with its gravity direction. The wiring post 150 can be stably mounted on the support assembly 110.

[0029] 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.

[0030] 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.

[0031] 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.

[0032] In one embodiment, such as Figure 2 As shown, at least one support component 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. 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 component 110, effectively reducing the width of the substation frame 100 and land acquisition costs. Meanwhile, the second support portion 112 is made of metal, which reduces costs. In addition, the aforementioned composite structure support component 110 is lightweight, resistant to rust and cracking, thus solving the problems of difficult transportation, installation, and maintenance, and reducing transportation and installation costs.

[0033] To further reduce the width of the substation frame 100, such as Figure 1 and Figure 2As 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 100 and the land acquisition cost.

[0034] Because traditional substation structures use metal beam assemblies, a combination of tension insulator strings, suspension insulator strings, or jumpers is required to connect conductors. The overall height of the substation structure is relatively high. Even if the beam assembly is made of composite insulation material, the non-composite insulation parts still require suspension insulators to connect conductors. In one embodiment, such as... Figure 1 As shown, the entire crossbeam assembly 120 is made of composite insulating material, which has excellent electrical insulation performance and can directly connect to the conductor without the need for suspension insulators or other structures. Since the conductor's height above the 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 tension insulator strings, suspension insulator strings, and jumpers, the potential problem of wind-induced discharge in the substation frame 100 can also be eliminated.

[0035] In yet another embodiment, such as Figure 3 or Figure 4 As shown, the crossbeam assembly 120 includes a middle section 125 and side phase sections 126 disposed at both ends of the middle section 125. The side phase sections 126 are made of composite insulation material, while the middle section 125 is made of metal. Because the side phase sections 126 are made of composite insulation material, they possess excellent mechanical and electrical insulation properties, allowing direct connection of conductors. This reduces the material usage of suspension insulators and other structures and support assemblies 110 to a certain extent. Furthermore, by saving on tension insulator strings, suspension insulator strings, and jumpers, it also eliminates the potential wind-induced discharge problem in the substation frame 100. Moreover, the use of metal in the middle section 125 reduces material costs.

[0036] Specifically, such as Figure 3 As shown in the figure, the intermediate section 125 may include at least two metal pipe fittings 1251, with adjacent metal pipe fittings 1251 connected by flanges. Specifically, the intermediate section 125 may include two, three, or more metal pipe fittings 1251. Of course, in other embodiments, the intermediate section 125 may also include only one metal pipe fitting 1251. Since the intermediate section 125 is still made of metal, the intermediate section 125 still needs to be connected to the conductor via a suspension insulator.

[0037] Specifically, such as Figure 4As shown, the intermediate section 125 can also be a metal lattice column. Of course, in other embodiments, the intermediate section 125 can also be other structures made of other metal materials, which are not limited here.

[0038] It should be noted that the crossbeam 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 crossbeam assembly 120 and the first support portion 111 can also be other composite insulating materials, which are not limited here.

[0039] 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.

[0040] like Figure 1 and Figure 5 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.

[0041] It should be noted that the wiring post 150 can also be installed on the flange assembly 130 between the support assembly 110 and the beam assembly 120.

[0042] like Figure 1 and Figure 5 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.

[0043] Specifically, such as Figure 1 and Figure 5As 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.

[0044] In one embodiment, such as Figure 1 , Figure 5 and Figure 6 As shown, the entire beam assembly 120 is made of composite insulating material. The beam assembly 120 includes at least two beam segments 121, such as two, three or more. Adjacent beam segments 121 are connected by flanges. The substation frame 100 includes a second hanging plate 142. The second hanging plate 142 is disposed at the flange between two adjacent beam segments 121. The second hanging plate 142 has several hanging holes 144 for hanging conductors 200.

[0045] Specifically, such as Figure 1 and Figure 6 As shown, the crossbeam assembly 120 includes two crossbeam segments 121, with each adjacent end of the two crossbeam segments 121 connected to a third flange 124. A second cable hanging plate 142 is sandwiched between the two third flanges 124. The second cable hanging plate 142 has two cable hanging holes 144 and one reserved hole, with the reserved hole located directly below the crossbeam assembly 120. The two cable hanging holes 144 are symmetrically arranged on both sides of the reserved hole.

[0046] In another embodiment, the beam assembly 120 may not be segmented, meaning the beam assembly 120 is a long strip-shaped composite post insulator. For example... Figure 7As 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.

[0047] Specifically, such as Figure 7 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.

[0048] 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.

[0049] like Figure 6As shown, the hanging holes 144 of each hanging plate are used to connect with the hanging hardware 210, and the wire 200 is hung on 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.

[0050] 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.

[0051] In one embodiment, three or multiples of three hanging points for connecting wires are provided between two adjacent support components 110, such as three, six, or nine. The three adjacent hanging points are respectively connected to the three phases A, B, and C, and sufficient intra-phase electrical safety distances must be ensured between the three phases A, B, and C.

[0052] It should be noted that, to ensure the electrical safety distance between adjacent connection points, when the substation frame 100 is a row substation frame 100 and all crossbeam assemblies 120 are made of composite insulation material, no hanging 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 hanging point is provided only on one side. However, when the substation frame 100 is a row substation frame 100 and only the side phase segments 126 of the crossbeam assemblies 120 are made of composite insulation material, no hanging 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 hanging point is provided only on one side, or hanging points can be provided on both sides provided that the electrical safety distance between the connection points on both sides is met. Furthermore, the hanging point at the connection between the flange assembly 130 in the middle position and the crossbeam assemblies 120 on both sides needs to be connected to the conductor via a suspension insulator or similar structure.

[0053] In addition, the two nearest hanging points on either side of the support assembly 110 located in the middle must meet the phase-to-phase safe electrical distance of the conductors connected to the substation frame 100. 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 strong electric fields. For example... Figure 3 and Figure 5 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.

[0054] In addition, combined Figure 8 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.

[0055] Furthermore, such as Figure 8 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.

[0056] 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.

[0057] 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°.

[0058] 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.

[0059] In summary, since the crossbeam assembly 120 is at least partially made of composite insulation material, it possesses excellent electrical insulation properties and can be directly connected to conductors. This reduces the material usage of structures such as suspension insulators and support components 110 to a certain extent. Furthermore, by saving on tension insulator strings, suspension insulator strings, and jumpers, it also eliminates the potential wind-induced discharge problem in the substation frame 100. The crossbeam assembly 120, made of 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.

[0060] In addition, the substation frame 100 also includes wiring posts 150. The wiring posts 150 are made of composite insulating material and include a first end 151 located 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. 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 conductors, which can ensure the electrical safety distance between the ground wire and the conductors and also serve as lightning protection. Furthermore, the second ends 152 of all wiring posts 150 are electrically connected. Only the grounding down conductor 153 needs to be connected to the grounding point along one of the wiring posts 150 to achieve the overall grounding of the substation frame 100, making the installation process convenient.

[0061] 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, including: Support assembly, at least three are arranged at intervals along the first direction, all the support assembly includes the first support part and the second support part that are connected with each other; Crossbeam assembly, erect between two adjacent support assemblies, the crossbeam assembly is composite insulating material; Wherein, the first support part is located between the crossbeam assembly and the second support part, the first support part is composite insulating material, and the second support part is metal material; 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 with the flange assembly respectively;The power transformation frame includes: First hanging wire board, set up at the junction of the crossbeam assembly and the flange assembly, the first hanging wire board is used for hanging wire; Hoop, interval sleeve is set up on the crossbeam assembly;The inner wall of the hoop is provided with a plurality of first slots and a plurality of second slots, the first slots are arranged at intervals, the first slots are arranged around the outer wall of the crossbeam assembly, the second slots are staggered with the first slots, and the first slots and the second slots are also used to fill adhesive material; Third hanging wire board, integral molding is set up on the outer wall of the hoop, and the third hanging wire board is used for hanging wire; Wiring column, corresponding with the support assembly, the wiring column is composite insulating material, and the wiring 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 crossbeam assembly, the second ends of all the wiring columns are electrically connected, and the second ends are used for hanging ground wire, and the ground wire is connected with grounding point along one of the wiring columns.

2. The transformer platform of claim 1, wherein, The axis of the wiring column and the support assembly is located on the same straight line.

3. The transformer platform of claim 1, wherein, The ground wire is arranged in close contact with the wiring column.

4. The transformer platform of claim 1, wherein, The distance between the ground wire and the wire is greater than the first preset value.

5. The transformer platform of claim 4, wherein, The connecting end of the wiring column and the support assembly is provided with a support insulator, the support insulator includes a proximal end arranged on the support assembly and a distal end opposite to the proximal end, the distance between the distal end and the wire is greater than the first preset value, and the ground wire is hung from the second end of the wiring column to the distal end.

6. The transformer platform of claim 1, wherein, The crossbeam assembly includes at least two crossbeam segments, and two adjacent crossbeam segments are connected through a flange, and the power transformation frame includes: Second hanging wire board, the second hanging wire board is arranged at the flange between two adjacent crossbeam segments, and the second hanging wire board is used for hanging wire.

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