CN111864543A - Power transformation framework - Google Patents
Power transformation framework Download PDFInfo
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- CN111864543A CN111864543A CN202010761553.4A CN202010761553A CN111864543A CN 111864543 A CN111864543 A CN 111864543A CN 202010761553 A CN202010761553 A CN 202010761553A CN 111864543 A CN111864543 A CN 111864543A
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- wiring
- assembly
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- wire
- power transformation
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
- H02B1/01—Frameworks
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
- H02B1/01—Frameworks
- H02B1/012—Details of mechanical connections
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
- H02B1/20—Bus-bar or other wiring layouts, e.g. in cubicles, in switchyards
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
- H02B1/20—Bus-bar or other wiring layouts, e.g. in cubicles, in switchyards
- H02B1/202—Cable lay-outs
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G7/00—Overhead installations of electric lines or cables
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G7/00—Overhead installations of electric lines or cables
- H02G7/05—Suspension arrangements or devices for electric cables or lines
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Buildings Adapted To Withstand Abnormal External Influences (AREA)
Abstract
The application specifically discloses a transformer framework includes: the support assemblies are arranged at intervals along a first direction; the beam assembly is erected between two adjacent supporting assemblies, and at least part of the beam assembly is made of composite insulating materials; the wiring post corresponds the setting with supporting component, and the wiring post is composite insulating material, and the wiring post is including setting up in supporting component's first end and the second end relative with first end, and the height that highly is higher than beam assembly of second end is connected between the second end of all wiring posts electricity, and at least one wiring post is used for articulating ground connection downlead. Through setting up the wiring post, and because the second end of wiring post is higher than beam assembly's height to the second end of wiring post is higher than the wire height, both can guarantee the electrical safety distance between ground wire and the wire, still can play lightning-arrest effect. And after the second ends of all the wiring columns are electrically connected, the integral grounding of the power transformation framework can be realized only by connecting the grounding downlead to the grounding point along one of the wiring columns.
Description
Technical Field
The application relates to the technical field of power transformation equipment, in particular to a power transformation framework.
Background
The power transformation framework is one of the main devices in a substation, and is used for suspending and supporting conductors to connect a switchgear or other electrical equipment and the like.
Most of the current power transformation frameworks are the combination of traditional iron frameworks and strain insulator strings, suspension insulator strings and jumper wires, have the defects of heavy weight, easiness in corrosion or cracking and the like, and have the problems of large occupied area of the frameworks, difficulty in transportation and installation and the like for a transformer substation or a converter station. If the iron cross beam of the power transformation framework is modified into an insulating material, no scheme for hanging the grounding down lead matched with the iron cross beam is available in the market. Therefore, a sophisticated power transformation architecture design is desired to solve the above problems.
Disclosure of Invention
The application provides a transformer framework can solve the problem that does not have the scheme that articulates the ground connection downlead that matches with insulating beam assembly on the market yet.
In order to solve the above technical problem, a technical solution adopted by the present application is to provide a power transformation framework, including: the support assemblies are arranged at intervals along a first direction; the beam assembly is erected between two adjacent supporting assemblies, and at least part of the beam assembly is made of composite insulating materials; the wiring post corresponds the setting with supporting component, and the wiring post is composite insulating material, and the wiring post is including setting up in supporting component's first end and the second end relative with first end, and the height that highly is higher than beam assembly of second end is connected between the second end of all wiring posts, and the second end is used for articulating the ground wire, and ground connection downlead is along at least one wiring post connection ground wire and ground point.
According to an embodiment of the present application, the wiring posts are located on the same straight line with the axis of the supporting component.
According to an embodiment of the application, the laminating wiring post setting of ground connection downlead.
According to an embodiment of the present application, the support assemblies each include a first support portion and a second support portion connected to each other, the first support portion is located between the beam assembly and the second support portion, the first support portion is made of a composite insulating material, and the second support portion is made of a metal material.
According to one embodiment of the present application, the beam assembly is entirely of composite insulation material.
According to one embodiment of the application, a flange assembly is arranged between the support assembly and the beam assembly, and the end part of the support assembly and the end part of the beam assembly are respectively connected with the flange assembly; the power transformation framework comprises: the first wiring board is arranged at the joint of the beam assembly and the flange assembly and used for hanging a lead.
According to an embodiment of the present application, a distance between the ground down conductor and the conductive line is greater than a first predetermined value.
According to an embodiment of the application, the connection end of wiring post and supporting component is provided with the post insulator, and the post insulator is including setting up in the proximal end of supporting component and the distal end relative with the proximal end, and the distance of distal end and wire is greater than first preset value, and ground connection downlead articulates to the distal end by the second end of wiring post.
According to an embodiment of the application, the beam assembly includes two at least crossbeam sections, and two adjacent crossbeam sections pass through flange joint, and the power transformation framework includes: the second suspension plate is arranged at a flange between two adjacent cross beam sections and used for suspending a lead.
According to an embodiment of the present application, the method includes: the hoop is sleeved on the beam assembly at intervals; a third wire hanging plate arranged on the outer wall of the hoop and used for hanging the lead
The beneficial effect of this application is: through setting up the wiring post to because the second end of wiring post is higher than beam assembly's height, thereby the second end of wiring post is higher than the wire height, both can guarantee the electrical safety distance between ground wire and the wire, still can play lightning-arrest effect. Because wiring post and first supporting part are insulating material, therefore the ground wire need connect ground connection downlead and just can accomplish ground connection, because the mounting process that the wiring post articulated ground connection downlead is comparatively complicated, with the second end electricity of all wiring posts connect the back, only need be connected to the ground connection with ground connection downlead along one of them wiring post and can realize the whole ground connection of transformer framework, the mounting process is convenient.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, it is obvious that 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 inventive efforts, wherein:
FIG. 1 is a schematic block diagram of an embodiment of a power transformation architecture of the present application;
figure 2 is a side view schematic of a support assembly of an embodiment of the power transformation architecture of the present application;
FIG. 3 is a partial schematic structural view of yet another embodiment of the power transformation framework of the present application, shown primarily for the purpose of showing two adjacent support assemblies and a beam assembly therebetween;
FIG. 4 is a partial schematic structural view of yet another embodiment of the power transformation framework of the present application, shown primarily for the purpose of showing two adjacent support assemblies and a beam assembly therebetween;
fig. 5 is a schematic partial structural view of an embodiment of the power transformation framework of the present application, mainly illustrating a first suspension plate;
FIG. 6 is a schematic structural view of two adjacent beam segments in an embodiment of the power transformation architecture of the present application;
fig. 7 is a schematic structural view of a hoop and a third suspension plate in a further embodiment of the power transformation framework of the present application;
fig. 8 is a schematic partial structural diagram of an embodiment of the power transformation framework of the present application, which is mainly used for showing the grading ring.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
An embodiment of the present application provides a power transformation framework 100, as shown in fig. 1, including support assemblies 110 and beam assemblies 120, the support assemblies 110 are provided at intervals in a first direction, the beam assemblies 120 are erected between two adjacent support assemblies 110, and the support assemblies 110 support the beam assemblies 120. The beam assembly 120 is used to hitch wires. In the traditional power transformation framework, the beam assembly adopts an iron framework, and all the components need to adopt the combination of a strain insulator string, a suspension insulator string and a jumper wire to hang and connect a lead. In one embodiment, the beam assembly 120 is at least partially made of a composite insulating material, has excellent electrical insulating properties, and can be directly hooked with a wire, thereby reducing the material usage of the suspension insulator and other structures and the support assembly 110 to a certain extent, and eliminating the problem of windage yaw discharge that may exist in the power transformation framework 100 due to the elimination of the strain insulator string, the suspension insulator string, and the jumper wire. The beam assembly 120 made of the composite insulating material is light in weight, not prone to rusting and cracking, low in transportation and installation cost and high in efficiency, can achieve the full life cycle and is free of maintenance, and the operation and maintenance cost of the original porcelain insulator string is reduced.
The power transformation frame 100 needs to be grounded, especially, at least three row power transformation frames 100 are arranged on the support assembly 110 at intervals along the first direction, when the beam assembly 120 is at least partially made of composite insulating materials and can be directly connected with the wires, because the ground wire and the wires need to keep enough electrical safety distance and the lightning protection problem needs to be considered, how to connect the ground wire is particularly important. As shown in fig. 1, in an embodiment, the power transformation framework 100 further includes a wiring pillar 150, the wiring pillar 150 is disposed corresponding to the support member 110, the wiring pillar 150 is made of a composite insulating material, the wiring pillar 150 includes a first end 151 disposed on the support member 110 and a second end 152 opposite to the first end 151, the second end 152 is higher than the beam member 120, and the second ends 152 of the wiring pillar 150 are electrically connected to each other. Through setting up wiring post 150 to because the second end 152 of wiring post 150 is higher than beam assembly 120's height, thereby the second end 152 of wiring post 150 is higher than the wire height, both can guarantee the electrical safety distance between ground wire and the wire, still can play lightning-arrest effect. Since the wiring posts 150 are made of insulating material, the ground wire needs to be connected to the grounding downlead 153 to complete grounding, and since the installation process of the wiring posts 150 hooking the grounding downlead 153 is relatively complicated, after the second ends 152 of all the wiring posts 150 are electrically connected, the grounding downlead 153 is connected to the grounding point along one of the wiring posts 150 to achieve the overall grounding of the power transformation framework 100, and the installation process is convenient. Of course, in other embodiments, the down conductor 153 may be connected to the ground point along a plurality or all of the wiring posts 150, and is not limited herein.
In order to ensure the stable connection between the wiring post 150 and the beam assembly 120, the axial direction of the wiring post 150 and the axial line of the supporting assembly 110 are located on the same straight line, that is, the wiring post 150 is vertically disposed on the beam assembly 120, the axial direction of the wiring post 150 is consistent with the gravity direction thereof, and the wiring post 150 can be stably disposed on the supporting assembly 110.
The ground down-lead 153 may be positioned adjacent to the wiring stud 150 when the electrical safety distance between the first end 151 of the wiring stud and the wire-hanging point on the beam assembly 120 where the wire is hung is sufficient.
It should be noted that, when the distance between the wire hooked at the nearest wire hanging point to the support assembly 110 and the support assembly 110 does not satisfy the safe electrical distance between the ground downlead 153 and the wire, a support structure is further required to be additionally provided to ensure the safe electrical distance between the ground downlead 153 and the wire hooked at the wire hanging point, and the distance between the ground downlead 153 and the wire is required to be greater than a first predetermined value.
Specifically, a post insulator (not shown) is disposed at a connection end of the wiring column 150 and the supporting member 110, the post insulator includes a proximal end disposed at the supporting member 110 and a distal end opposite to the proximal end, a distance between the distal end and the wire is greater than a first predetermined value, and the ground down lead 153 is hooked to the distal end by the second end 152 of the wiring column 150 and then is grounded, so as to ensure a safe electrical distance between the ground down lead 153 and the wire hooked at the wire hanging point.
In one embodiment, as shown in fig. 2, the at least one support assembly 110 includes a first support 111 and a second support 112 connected to each other, the first support 111 is located between the beam assembly 120 and the second support 112, the first support 111 is made of a composite insulating material, and the second support 112 is made of a metal material. Because the first supporting portion 111 connected to the beam assembly 120 is made of composite insulating material, it has excellent electrical insulating performance, so that the electrical safety distance between the conductive wire and the supporting assembly 110 can be reduced, and further the width and the land acquisition cost of the power transformation frame 100 can be effectively reduced, and meanwhile, the second supporting portion 112 is made of metal material, so that the effect of reducing the cost can be achieved. In addition, the support assembly 110 with the composite structure has light weight and is not easy to rust and crack, so that the problem of difficulty in transportation, installation and maintenance is solved, and the transportation and installation cost is reduced.
In order to further reduce the width of the power transformation framework 100, as shown in fig. 1 and 2, all the support assemblies 110 include a first support portion 111 and a second support portion 112, the first support portion 111 is made of a composite insulating material, the electrical insulation performance of the first support portion 111 is fully exerted, and the electrical safety distance between the conducting wire and the support assemblies 110 is minimized, so that the width and the ground charge of the power transformation framework 100 are reduced.
Because in the traditional power transformation framework, the cross beam assembly is made of metal materials, and the wire needs to be hung by adopting the combination of a strain insulator string, a suspension insulator string or a jumper wire, the whole height of the power transformation framework is higher, and even if the cross beam assembly is made of a composite insulating material, the part of the cross beam assembly, which is not made of the composite insulating material, still needs to be hung by the suspension insulator. In one embodiment, as shown in fig. 1, the beam assembly 120 is made of a composite insulating material, has excellent electrical insulating properties, can be directly connected with a wire without using a structure such as a suspension insulator, and can integrally reduce the height of the power transformation frame 100 and reduce the material consumption of the structure such as the suspension insulator and the material consumption of the support assembly 110 after the suspension insulator and the like are removed from the connection with the wire due to the fixed ground height of the wire; moreover, strain insulator strings, suspension insulator strings and jumper wires are saved, and the problem of windage yaw discharge possibly existing in the power transformation framework 100 can be solved.
In yet another embodiment, as shown in fig. 3 or 4, the beam 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 being a composite insulating material, and the middle section 125 being a metal material. Because the side phase section 126 is made of the composite insulating material, the side phase section has excellent mechanical property and electrical insulating property, and can be directly connected with a lead in a hanging mode, the material consumption of structures such as a suspension insulator and the like and the supporting assembly 110 is reduced to a certain extent, and the problem of wind deflection discharge possibly existing in the power transformation framework 100 can be solved due to the fact that strain insulator strings, suspension insulator strings and jumper wires are saved. Moreover, the intermediate section 126 is made of metal material, so that the material cost can be reduced.
Specifically, as shown in fig. 3, the middle section 125 may include at least two metal pipes 1251, and two adjacent metal pipes 1251 are connected by a flange. Specifically, middle section 125 may include two, three, or more metal tubes 1251. Of course, in other embodiments, middle section 125 may include only one metal tube 1251. Since the intermediate section 125 is still a metallic material, the intermediate section 125 still requires the conductor to be hooked through the suspension insulator.
Specifically, as shown in fig. 4, the middle section 125 may also be a metal lattice column. Of course, the middle section 125 may have other structures made of other metal materials in other embodiments, and is not limited herein.
It should be noted that the beam assembly 120 and the first supporting portion 111 may be in the structure of a post insulator, and the post insulator includes an insulator inside and a rubber shed covering the insulator. In particular, the insulator may be an insulating tube or an insulating mandrel. The insulating tube can be a glass steel tube formed by winding and curing epoxy resin impregnated by glass fiber or aramid fiber or a hollow pultrusion tube formed by pultrusion; the insulating core rod can be a solid core rod formed by winding and curing glass fiber or aramid fiber impregnated epoxy resin or a pultrusion core rod formed by pultrusion, and the rubber shed can be made of high-temperature vulcanized silicone rubber or other rubber materials. In other embodiments, the beam assembly 120 and the first support 111 may be made of other composite insulating materials, and are not limited herein.
In one embodiment, as shown in fig. 1, the beam assembly 120 is gradually lifted upwards in a direction away from the two side support assemblies 110 to form an arched beam assembly 120, so that the power transformation frame 100 can counteract the vertical sag by using its own arched structure, thereby reducing the potential safety hazard.
As shown in fig. 1 and 5, a flange assembly 130 is disposed between the support assembly 110 and the beam assembly 120, and an end of the support assembly 110 and an end of the beam assembly 120 are respectively connected to the flange assembly 130. The flange assembly 130 includes a barrel 133, and an axis of the barrel 133 is inclined upward and forms an acute angle with a horizontal plane, so that the barrel 133 can have a tendency of pre-arching upward after being installed, and when the flange assembly 130 is connected with the beam assembly 120, a linked pre-arching angle can be generated, so that the beam assembly 120 can be gradually lifted upward in a direction away from the two side support assemblies 110 to form the arched beam assembly 120.
It should be noted that the wiring posts 150 may also be disposed on the flange assembly 130 between the support assembly 110 and the beam assembly 120.
As shown in fig. 1 and 5, the power transformation framework 100 further includes a first wire hanging plate 141, the first wire hanging plate 141 is disposed at a connection position of the beam assembly 120 and the flange assembly 130, the first wire hanging plate 141 is provided with a plurality of wire hanging holes 144, and the wire hanging holes 144 are used for hanging wires.
Specifically, as shown in fig. 1 and 5, a first flange 132 is disposed at an end of the flange assembly 130, a second flange 123 is disposed at an end of the beam assembly 120, the first flange 132 and the second flange 123 are connected by a first fastener (not shown), and the first suspension plate 141 is interposed between the first flange 132 and the second flange 123. The first wire hanging plate 141 is provided with two wire hanging holes 144 and a reserved hole (not shown in the figure), wherein the reserved hole is located right below the beam assembly 120, and the two wire hanging holes 144 are symmetrically arranged on two sides of the reserved hole.
In an embodiment, as shown in fig. 1, 5 and 6, all of the beam assemblies 120 are made of a composite insulating material, each beam assembly 120 includes at least two, for example, two, three or more beam sections 121, two adjacent beam sections 121 are connected by a flange, the power transformation framework 100 includes a second wire hanging plate 142, the second wire hanging plate 142 is disposed at the flange between two adjacent beam sections 121, the second wire hanging plate 142 is provided with a plurality of wire hanging holes 144, and the wire hanging holes 144 are used for hanging the wires 200.
Specifically, as shown in fig. 1 and fig. 6, the beam assembly 120 is a beam assembly 120 that includes two beam sections 121, the adjacent ends of the two beam sections 121 are respectively connected to a third flange 124, and the second suspension plate 142 is sandwiched between the two third flanges 124. Two string-hanging holes 144 and a prepared hole are formed in the second string-hanging plate 142, wherein the prepared hole is located right below the beam assembly 120, and the two string-hanging holes 144 are symmetrically arranged on two sides of the prepared hole.
In yet another embodiment, the beam assembly 120 may be provided without being divided, i.e., the beam assembly 120 is a strip-type composite post insulator. As shown in fig. 7, the power transformation framework 100 includes an anchor ear 122 and a third hanging plate 143, the anchor ear 122 is disposed on the beam assembly 120 in a spaced manner, the third hanging plate 143 is disposed on an outer wall of the anchor ear 122, the third hanging plate 143 is provided with a plurality of hanging holes 144, and the hanging holes 144 are used for hanging wires. The anchor ear 122 can be fixed on the beam assembly 120 by gluing, the inner wall of the anchor ear 122 is provided with a plurality of first slots 1221 arranged at intervals and a plurality of second slots 1222 arranged at intervals, the first slots 1221 are arranged around the outer wall of the beam assembly 120, and the second slots 1222 and the first slots 1221 are arranged in a staggered manner, so that the first slots 1221 and the second slots 1222 can limit the axial sliding and radial rotation of the anchor ear 122 on the beam assembly 120 under the combined action of the first slots 1221 and the second slots 1222, and the stable connection between the anchor ear 122 and the beam assembly 120 is maintained; meanwhile, the first slots 1221 and the second slots 1222 are staggered, so that when the adhesive material is filled, the adhesive material can sufficiently and uniformly flow in the first slots 1221 and the second slots 1222, and the adhesive bonding between the anchor ear 122 and the beam assembly 120 is facilitated.
Specifically, as shown in fig. 7, the third wire hanging plate 143 is integrally formed with the hoop 122, the first slot 1221 and the second slot 1222 on the inner wall of the hoop 122 are vertically disposed, the third wire hanging plate 143 is provided with two wire hanging holes 144 and a reserved hole, wherein the reserved hole is located right below the beam assembly 120, and the two wire hanging holes 144 are symmetrically disposed on two sides of the reserved hole.
Of course, in other embodiments, a manner of splicing a plurality of beam sections 121 and combining the hoop 122 may also be adopted, for example, the beam assembly 120 includes a long beam section 121 and a short beam section 121, the long beam section 121 and the short beam section 121 are spliced by a flange, the flange is provided with a second suspension plate 142, and the hoop 122 is sleeved on the long beam section 121.
As shown in fig. 6, the wire hanging hole 144 of each wire hanging plate is used for connecting with a wire hanging fitting 210, and the lead wire 200 is hung on the wire hanging hole 144 by the wire hanging fitting 210. The wire hanging hole 144 for hanging the wire hanging fitting 210 on the general wire hanging plate is circular, but considering that the wire hanging fitting 210 may rotate at a certain angle under the action of external force, after the wire hanging fitting 210 rotates, the direction of the force between the wire hanging fitting 210 and each wire hanging plate cannot intersect with the central line of each wire hanging plate, namely, a torsion force is generated on each wire hanging plate, and the force can lead to the connection looseness and even the reduction of the support service life. In order to make after hanging wire gold utensil 210 is rotatory, the direction of force between hanging wire gold utensil 210 and each hanging wire board still intersects with the central line of each hanging wire board, set up at least one hanging wire hole 144 on each hanging wire board into waist shape hole or arc hole in this application, hang wire gold utensil 210 takes place to rotate after automatic removal in hanging wire hole 144 for the direction of the effect of hanging wire gold utensil 210 to each hanging wire board keeps crossing with the central line of each hanging wire board, thereby keep the connection stability of each hanging wire board, strengthen the stability of transformer framework 100, prolong its life.
In order to ensure the mechanical stability of the power transformation framework 100, the central line of each wire hanging plate coincides with the central line of the beam assembly 120, so that the wire hanging holes 144 are arranged to be waist-shaped holes or arc-shaped holes, and the direction of the acting force of the wire hanging hardware fitting 210 on the beam assembly 120 is ensured to be intersected with the central line of the beam assembly 120.
In an embodiment, three or a multiple of three wire hanging points, for example, three, six, or nine, are disposed between two adjacent supporting members 110. Three adjacent wire hanging points are respectively connected with three phases A, B and C, and enough in-phase electrical safety distance needs to be ensured among the three phases A, B and C.
It should be noted that, in order to ensure the electrical safety distance between adjacent connection points, when the power transformation frame 100 is the row-connected power transformation frame 100 and the beam assemblies 120 are all made of the composite insulating material, no wire hanging point is disposed at the connection between the flange assembly 130 located in the middle and the beam assemblies 120 located on both sides, or a wire hanging point is disposed on only one side. When the power transformation frame 100 is a row-connected power transformation frame 100 and only the side phase section 126 of the beam assembly 120 is made of a composite insulating material, the connection between the flange assembly 130 located in the middle and the beam assemblies 120 on both sides may not be provided with a wire hanging point, only one side may be provided with a wire hanging point, or both sides may be provided with wire hanging points under the condition that the electrical safety distance of the hanging wires is satisfied between the connection on both sides. And the wire hanging point at the connection of the flange assembly 130 at the middle position and the beam assemblies 120 at the two sides needs to hang the wire through a suspension insulator or the like.
In addition, the two nearest wire hanging points on the two sides of the support assembly 110 at the middle position need to satisfy the inter-phase safe electrical distance of the wires hung on the power transformation frame 100. The flange assembly 130 disposed between the support assembly 110 and the beam assembly 120 is likely to cause abnormal discharge near the strong electric field due to the presence of a plurality of irregular contours and the close distance to the first suspension plate 141. As shown in fig. 3 and 5, the power transformation frame 100 further includes a shield case 131, and the shield case 131 is covered outside the flange assembly 130 to prevent abnormal discharge.
In addition, as shown in fig. 8, the equalizing ring 160 is further disposed on the cross beam assembly 120 on a side of the first suspension plate 141 away from the flange assembly 130, and the equalizing ring 160 can uniformly distribute high voltage around, so as to ensure that there is no potential difference between each annular portion, thereby achieving an equalizing effect and preventing abnormal discharge.
Further, as shown in fig. 8, at least one side of the second wire hanging plate 142 is also provided with a grading ring 160, respectively, to homogenize an electric field and prevent discharge from occurring. Preferably, the second wire hanging plate 142 is provided with equalizing rings 160 at both sides thereof, respectively.
Similarly, at least one side of the third suspension plate 143 is also provided with a grading ring (not shown) to make an electric field uniform and prevent discharge. Preferably, the third wire hanging plate 143 is provided with equalizing rings on both sides thereof.
In one embodiment, as shown in fig. 1 and 2, each support assembly 110 includes two main support columns 113, each main support column 113 includes a first support 111 and a second support 112, and first support 111 is a composite insulating material. The two main supporting columns 113 are respectively connected with the flange assembly 130, the plane where the axes of the two main supporting columns 113 are located is perpendicular to the first direction, and an included angle of 5-70 degrees is formed between the two main supporting columns 113.
Further, as shown in fig. 2, at least one of the two support assemblies 110 located at two sides further includes an oblique support column 114, the oblique support column 114 is connected to the flange assembly 130 and includes a first support 111 and a second support 112, and the first support 111 is made of a composite insulating material. The diagonal support posts 114 are located out of the plane of the two main support posts 113 to limit deflection of the power transformation frame 100 in the first direction. It should be noted that the diagonal support column 114 is disposed at a side away from the beam assembly 120.
In summary, since at least a portion of the beam assembly 120 is made of a composite insulating material, the beam assembly has excellent electrical insulating properties, and can be directly hooked with a lead, thereby reducing the material usage of structures such as suspension insulators and the like and the supporting assembly 110 to a certain extent, and further eliminating the problem of windage yaw discharge that may exist in the power transformation framework 100 due to the saving of strain insulator strings, suspension insulator strings and jumpers. The beam assembly 120 made of the composite insulating material is light in weight, not prone to rusting and cracking, low in transportation and installation cost and high in efficiency, can achieve the full life cycle and is free of maintenance, and the operation and maintenance cost of the original porcelain insulator string is reduced.
In addition, the power transformation frame 100 further includes a wiring pillar 150, the wiring pillar 150 is made of a composite insulating material, the wiring pillar 150 includes a first end 151 disposed on the support member 110 and a second end 152 opposite to the first end 151, and the second end 152 is higher than the beam member 120. By arranging the wiring column 150, and because the second end 152 of the wiring column 150 is higher than the height of the beam assembly 120, the second end 152 of the wiring column 150 is higher than the height of the wire, the electrical safety distance between the ground wire and the wire can be ensured, and the lightning protection effect can be achieved; in addition, the second ends 152 of all the wiring posts 150 are electrically connected, and the grounding down-lead 153 is connected to the grounding point along one of the wiring posts 150 to achieve the overall grounding of the power transformation frame 100, so that the installation process is convenient.
The above description is only an embodiment of the present application, and not intended to limit the scope of the present application, and all modifications that can be made by using equivalent structures or equivalent principles in the contents of the specification and the drawings or directly or indirectly applied to other related technical fields are also included in the scope of the present application.
Claims (10)
1. A power transformation architecture, comprising:
the support assemblies are arranged at intervals along a first direction;
the beam assembly is erected between two adjacent support assemblies, and at least part of the beam assembly is made of composite insulating materials;
the wiring post corresponds the setting with the supporting component, the wiring post is composite insulating material, the wiring post including set up in the first end of supporting component and with the second end that first end is relative, the height of second end is higher than beam component's height, all the wiring post be connected between the second end electricity, the second end is used for articulating the ground wire, and ground connection downlead is followed at least one the wiring post is connected ground wire and ground point.
2. A power transformation framework as claimed in claim 1, wherein the wiring posts are collinear with the axis of the support assembly.
3. A transformation framework as claimed in claim 1, wherein said down conductor is arranged in close proximity to said wiring posts.
4. A power transformation framework as claimed in claim 1, wherein the support assemblies each comprise first and second interconnected supports, the first support being located between the beam assembly and the second support, the first support being of a composite insulating material and the second support being of a metallic material.
5. A transformation framework according to claim 4, wherein said beam assemblies are all of composite insulating material.
6. A power transformation framework according to claim 5, wherein a flange assembly is arranged between the support assembly and the beam assembly, and the end of the support assembly and the end of the beam assembly are respectively connected with the flange assembly; the power transformation framework comprises:
the first wiring board is arranged at the joint of the beam assembly and the flange assembly and used for hanging a lead.
7. A transformation framework according to claim 1, characterized in that the distance between said down conductor and the conductor is greater than a first predetermined value.
8. A transformation framework according to claim 7, wherein the connection end of said wiring column to said support assembly is provided with a post insulator, said post insulator comprising a proximal end disposed to said support assembly and a distal end opposite said proximal end, said distal end being spaced from said wire by a distance greater than said first predetermined value, said ground lead being hooked to said distal end by a second end of said wiring column.
9. A power transformation frame as claimed in claim 5, wherein the beam assembly comprises at least two beam sections, adjacent two of the beam sections being connected by flanges, the power transformation frame comprising:
the second suspension plate is arranged at the flange between the adjacent two cross beam sections and is used for suspending a lead.
10. A power transformation framework according to claim 5, comprising:
the hoop is sleeved on the beam assembly at intervals;
and the third wire hanging plate is arranged on the outer wall of the hoop and used for hanging the wires.
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CN202010761553.4A CN111864543A (en) | 2020-07-31 | 2020-07-31 | Power transformation framework |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2022022385A1 (en) * | 2020-07-31 | 2022-02-03 | 江苏神马电力股份有限公司 | Substation framework |
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Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2022022385A1 (en) * | 2020-07-31 | 2022-02-03 | 江苏神马电力股份有限公司 | Substation framework |
US12119635B2 (en) | 2020-07-31 | 2024-10-15 | Jiangsu Shemar Electric Co., Ltd. | Substation frame |
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