WO2023056657A1 - High-impedance transformer having built-in reactor - Google Patents
High-impedance transformer having built-in reactor Download PDFInfo
- Publication number
- WO2023056657A1 WO2023056657A1 PCT/CN2021/123549 CN2021123549W WO2023056657A1 WO 2023056657 A1 WO2023056657 A1 WO 2023056657A1 CN 2021123549 W CN2021123549 W CN 2021123549W WO 2023056657 A1 WO2023056657 A1 WO 2023056657A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- coil
- rod
- built
- reactor
- transformer
- Prior art date
Links
- 230000007246 mechanism Effects 0.000 claims abstract description 41
- 238000003825 pressing Methods 0.000 claims abstract description 16
- 230000000712 assembly Effects 0.000 claims abstract description 9
- 238000000429 assembly Methods 0.000 claims abstract description 9
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 20
- 229910052802 copper Inorganic materials 0.000 claims description 20
- 239000010949 copper Substances 0.000 claims description 20
- 229910000976 Electrical steel Inorganic materials 0.000 claims description 16
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 claims description 11
- 230000004907 flux Effects 0.000 abstract description 9
- 238000013021 overheating Methods 0.000 abstract description 6
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 238000012545 processing Methods 0.000 abstract description 3
- 239000003921 oil Substances 0.000 description 7
- 239000000463 material Substances 0.000 description 6
- 239000002184 metal Substances 0.000 description 5
- 229910052751 metal Inorganic materials 0.000 description 5
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- 230000008859 change Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 125000006850 spacer group Chemical group 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000002828 fuel tank Substances 0.000 description 1
- 230000020169 heat generation Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/40—Structural association with built-in electric component, e.g. fuse
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/28—Coils; Windings; Conductive connections
- H01F27/30—Fastening or clamping coils, windings, or parts thereof together; Fastening or mounting coils or windings on core, casing, or other support
- H01F27/303—Clamping coils, windings or parts thereof together
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/33—Arrangements for noise damping
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/34—Special means for preventing or reducing unwanted electric or magnetic effects, e.g. no-load losses, reactive currents, harmonics, oscillations, leakage fields
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/34—Special means for preventing or reducing unwanted electric or magnetic effects, e.g. no-load losses, reactive currents, harmonics, oscillations, leakage fields
- H01F27/36—Electric or magnetic shields or screens
- H01F27/363—Electric or magnetic shields or screens made of electrically conductive material
Definitions
- the invention relates to the field of transformers and reactors, in particular to a high-impedance transformer with built-in reactors.
- the present invention overcomes the disadvantages in the prior art that when the three coils of the reactor are arranged in a straight line, it takes up a large space and the three-phase flux leakage cannot be balanced, and provides a high-impedance transformer with a built-in reactor.
- a high-impedance transformer with a built-in reactor which includes: a low-voltage side coil, a high-voltage side coil, and a reactor correspondingly connected to the low-voltage side coil, characterized in that the reactor includes, Three coil components arranged in such a way that the center points are located at vertices of an equilateral triangle and a fixed component for connecting the coil components;
- the fixing assembly includes an upper pressing plate located above the coil assembly, an upper clamping piece located on the upper pressing plate, a lower supporting plate located below the coil assembly, a lower clamping element located under the lower supporting plate and a through-hole
- an upper pressing plate located above the coil assembly
- an upper clamping piece located on the upper pressing plate
- a lower supporting plate located below the coil assembly
- a lower clamping element located under the lower supporting plate and a through-hole
- the fixing assembly further includes an upper magnetic shield plate and a lower magnetic shield plate, the upper magnetic shield plate is arranged between the upper pressing plate and the upper clamping piece, and the lower magnetic shield plate The screen plate is arranged between the lower support plate and the lower clamping piece.
- the upper magnetic shield plate is composed of a silicon steel strip and an insulating layer arranged on the surface of the silicon steel strip
- the lower magnetic shield plate is composed of a silicon steel strip and an insulating layer arranged on the surface of the silicon steel strip. Silicon steel with ground lug for electrical connection to ground.
- the coil assembly includes a support cylinder sleeved on the corresponding rod-shaped tensioning mechanism and a coil wound on the outer surface of the support cylinder, and the support cylinder is wound around a wooden skeleton Insulation mechanism composed of cardboard.
- a rod-shaped tensioning mechanism is also arranged in the area surrounded by the three coil components.
- the upper pressing plate is a circular plate covering all the coil components
- the upper clamping piece is concentric with the upper pressing plate
- three brackets extend from the central position to the direction of the three rod-shaped tensioning mechanisms
- the arm has a trident structure as a whole;
- the lower supporting plate is a circular plate covering the bottom of all coil components, the lower clamping piece is concentric with the lower supporting plate, and three support arms extend from the center to the direction of the three rod-shaped tensioning mechanisms, and the whole is trident structure.
- the fixing assembly further includes several insulating pads arranged at the bottom of the lower splint.
- the reactor is located at one end of the three-phase in-line transformer, and the coils correspond to the coils of the three phases inside the transformer, specifically A-phase coil, B-phase coil and The C-phase coil, the connecting lead wire drawn from the coil is connected to the low-voltage coil of the corresponding phase in the transformer through the lug and the copper bar in turn, and the three coils are arranged in the XYZ three-dimensional space.
- the three-phase low-voltage coil of the transformer is connected to the reactor from the X-directed copper bar, the A-phase coil is close to the transformer, and the connecting lead of the A-phase coil is in the X-direction, Connect the Y-direction copper bar through the lug, the connection lead wire of the B-phase coil is in the Y direction, and connect the X-direction to Y-direction copper bar through the lug, the connection lead wire of the C-phase coil is Z direction, and the connection lead wire of the C-phase coil is in the Z direction. Connect the X direction to the Z direction copper bar first.
- the rod-shaped tensioning mechanism is composed of several rod-shaped tensioning mechanisms, and the rod-shaped tensioning mechanisms are evenly distributed on the circumference of the same circle, and the center of the circle is the rod-shaped tensioning mechanism.
- the center of the coil assembly corresponding to the shape tensioning mechanism.
- the present invention solves the defect existing in the background technology, and the present invention has the following beneficial effects:
- the present invention adopts a built-in series reactor, and the body is arranged in the shape of "product", which significantly reduces the weight, high production efficiency, low cost, and reliable performance; and the processing is simple, the product noise is reduced, the volume and quality are small, and it is easy to move and install.
- adopting the setting of "pin” can ensure that the three-phase magnetic flux leakage is balanced with each other, avoiding overheating, reducing loss, and reducing potential safety hazards.
- the structural shape of the upper clamp and the lower clamp is trident, which has the technical characteristics of force balance, high material utilization rate, and low structural loss, and the materials of the upper clamp and the lower clamp are metal parts, which strengthen In order to improve the mechanical strength, the rod-shaped tensioning mechanism is fixedly connected with the upper clamp or the lower clamp, and its fixing strength is stronger.
- the present invention has the advantages of simple structure, high production efficiency, small footprint and low cost, and is suitable for environments with strict requirements on space size.
- Fig. 1 is a front view of a high-impedance transformer with a built-in reactor described in an embodiment of the present invention
- Fig. 2 is a top view of a high-impedance transformer with a built-in reactor described in an embodiment of the present invention
- Fig. 3 is a schematic diagram of the connection between the coil of the reactor and the coil of the transformer according to an embodiment of the present invention.
- Reference signs are as follows: 01, high-voltage coil; 02, low-voltage coil; 10, coil assembly; 101, support cylinder; 102, coil; 1021, lead wire; 103, copper sheet; 20, fixed component; , upper clamping piece; 203, upper magnetic screen plate; 204, rod-shaped tensioning mechanism; 2041, screw rod; 205, lower supporting plate; 206, lower clamping piece; 207, lower magnetic screen plate; Locator; 401, lug piece; 402, copper bar; 403, wood piece; 404, detachable soft wiring piece.
- connection should be understood in a broad sense, for example, it can be a fixed connection or a detachable connection. Connected, or integrally connected; it can be mechanically connected or electrically connected; it can be directly connected or indirectly connected through an intermediary, and it can be the internal communication of two components. Those of ordinary skill in the art can understand the specific meanings of the above terms in this application based on specific situations.
- a high-impedance transformer with a built-in reactor a low-voltage side coil 02, a high-voltage side coil 01, and a reactor correspondingly connected to the low-voltage side coil
- the reactor includes: Three coil components 10 arranged in such a way that the center points are located at vertices of an equilateral triangle and a fixing component 20 for connecting the coil components 10 are provided.
- the three internal coils 102 are arranged in the shape of "pin", and the three-phase magnetic flux leakage is balanced with each other, so that other safety hazards will not be caused by local overheating inside. Hidden danger. And this kind of arrangement is more compact than the "one" arrangement, that is, it occupies a smaller volume and does not need to expand the oil tank of the transformer.
- the fixing assembly 20 includes an upper plate 201 located on the coil assembly 10, an upper clamp 202 located on the upper plate 201, and an upper magnetic shield arranged between the upper plate 201 and the upper clamp 202.
- the three rod-shaped tensioning mechanisms 204 of the assembly 10 one end of the rod-shaped tensioning mechanism 204 passes through the upper platen 201 and the upper magnetic shield plate 203 in sequence, and finally is fixedly connected with the upper clamp 202, and the other end passes through the lower supporting plate 205 in sequence and the lower magnetic shield plate 207, and finally fixedly connected with the lower clip 206.
- the fixing assembly 20 is provided with a plate-shaped fixing member for fixing and clamping the coil 102 at the upper end and the lower end of the coil 102, and is fixed with a rod-shaped tensioning mechanism 204 in the middle to connect it as a complete whole .
- the upper magnetic shield plate 203 and the lower magnetic shield plate 207 are provided for magnetic shielding, which reduces the leakage flux and prevents the magnetic field lines generated after the coil 102 is energized from entering the oil tank of the transformer, causing overheating of the oil tank of the transformer.
- the upper magnetic shield plate 203 is composed of a silicon steel strip and an insulating layer arranged on the surface of the silicon steel strip
- the lower magnetic shield plate 207 is composed of a silicon steel strip and an insulating layer arranged on the surface of the silicon steel strip
- the silicon steel strip is electrically connected to the grounding sheet .
- Silicon steel material has high magnetic permeability and good magnetic shielding effect.
- the present invention uses the upper magnetic shield plate 203 and the lower magnetic shield plate 207 to replace the iron core or the upper and lower iron yokes of the traditional inline reactor. required environment.
- the coil assembly 10 includes a support cylinder 101 sleeved on the corresponding rod-shaped tensioning mechanism 204 and a coil 102 wound on the outer surface of the support cylinder 101.
- the apexes of the triangles are arranged in a way, and the support cylinder 101 is an insulating mechanism composed of cardboard wrapped around a wooden skeleton.
- a rod-shaped tensioning mechanism 204 is also provided in the area surrounded by the three coil assemblies 10 .
- the rod-shaped tensioning mechanism 204 is composed of several screw rods 2041 , and the screw rods 2041 are evenly distributed on the circumference of the same circle, and the center of the circle is the center of the coil assembly 10 corresponding to the rod-shaped tensioning mechanism 204 .
- the screw rod 2041 in the rod-shaped tensioning mechanism 204 can be conductive or non-conductive.
- the connection mode of the upper and lower metal parts is determined to form a reasonable magnetic circuit and grounding. system to avoid commutation and overheating.
- the upper pressing plate 201 is a circular plate covering all the coil assemblies 10, the upper clamping piece 202 is concentric with the upper pressing plate 201, and three support arms extend from the central position to the direction of the three rod-shaped tensioning mechanisms 204, The whole is a trident structure; the lower supporting plate 205 is a circular plate covering the bottom of all coil assemblies 10, the lower clamping piece 206 is concentric with the lower supporting plate 205, and three rod-shaped tensioning mechanisms 204 extend from the central position to the three rod-shaped tensioning mechanisms 204.
- the bracket arm has a trident structure as a whole.
- the structural profile of the upper clamping part 202 and the lower clamping part 206 is a trident shape, which has the technical characteristics of balanced force, high material utilization rate, and low structural loss.
- the materials of the upper clamping part 202 and the lower clamping part 206 are metal parts, which enhances the mechanical strength, and the rod-shaped tensioning mechanism 204 is fixedly connected with the upper clamping part 202 and the lower clamping part 206, and its fixing strength is stronger.
- the fixing assembly 20 further includes several insulating spacers 301 arranged at the bottom of the lower splint.
- the insulating spacer 301 here is made of flexible material, which slows down the vibration of the transformer body and reduces the working noise caused by the body and the ground when the transformer is in operation, and the bottom of the fixing assembly 20 is also provided with a locator 302, which can It helps the three coils 102 of the reactor to be assembled more precisely, which ensures that the three flux leakages can be balanced with each other.
- the reactor is located at one end of the three-phase in-line transformer, and the coils 102 correspond to the three-phase coils 102 inside the transformer, specifically, the A-phase coil 102, the B-phase coil 102 and the C-phase coil 102, the connecting lead wire 1021 drawn from the coil 102 is connected to the low-voltage coil 102 of the corresponding phase in the transformer through the lug 401 and the copper bar 402 in turn, and the three coils 102 are arranged in the XYZ three-dimensional space.
- the transformer three-phase low-voltage coil 102 is connected to the reactor from the X-directed copper bar 402, the A-phase coil 102 is close to the transformer, and the connecting lead wire 1021 of the A-phase coil 102 is in the X-direction.
- the piece 401 is connected to the Y-direction copper bar 402, the connection lead wire 1021 of the B-phase coil 102 is in the Y direction, and the X-direction is connected to the Y-direction copper bar 402 through the lug 401, and the connection lead wire 1021 of the C-phase coil 102 is in the Z direction.
- the lug 401 is connected to the copper bar 402 that turns from the X direction to the Z direction.
- the copper bar 402 is fixed by a wooden piece 403 .
- the reactor and the transformer are flexibly connected through a detachable flexible wire piece 404 .
- the detachable connection is adopted here, and it is more convenient to disassemble the body of the reactor and the body of the transformer, and it is also convenient for transportation.
- the upper magnetic shield plate 203 in the present invention is connected with the upper clamp 202 through the copper sheet 103, the lower magnetic shield plate 207 is connected with the lower clamp 206 through the copper sheet 103, and the upper clamp 202 and the lower clamp 206 are connected by the low magnetic steel Rod tensioning mechanisms 204 are connected together.
- the reactor as a whole falls on the bottom of the transformer oil tank through the shock-absorbing structure, and finally connects with the main body of the transformer through the connection lead 1021 to ensure a little grounding, which also ensures the normal operation of the transformer and the reactor.
- the volume and weight of the reactor structure provided by the invention are obviously reduced, and the production efficiency is high, the cost is low, and the performance is reliable.
- the processing is simple, the noise of the product is reduced, the volume and quality are small, and it is easy to move and install.
- adopting the setting of the character "pin" can ensure the mutual balance of the three-phase magnetic flux leakage, avoid overheating, reduce loss, and reduce potential safety hazards.
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Coils Of Transformers For General Uses (AREA)
- Regulation Of General Use Transformers (AREA)
Abstract
Disclosed is a high-impedance transformer having a built-in reactor, said transformer comprising: three coil assemblies that are arranged as the vertices of a regular triangle according to the center point, and a fixing assembly used for connecting the coil assemblies. The fixing assembly comprises an upper pressing plate located above the coil assemblies, an upper clamping piece located on the upper pressing plate, a lower supporting plate located below the coil assemblies, a lower clamping piece located below the lower supporting plate, and three rod-like tensioning mechanisms that pass through the coil assemblies; one end of each rod-like tensioning mechanism is fixedly connected to the upper clamping piece by means of the upper pressing plate, and the other end passes through the lower supporting plate to be fixedly connected to the lower clamping piece. According to the present invention, a built-in series reactor is used, and the device body is arranged in a "品" shape, thus the weight is obviously reduced, the production efficiency is high, costs are low, and performance is reliable. Moreover, processing is simple, product noise is reduced, the size and weight are small, and movement and mounting are convenient. In addition, by using a "品" shape, three-phase magnetic flux leakage can be ensured to be mutually balanced, thus preventing overheating and reducing loss, while potential safety hazards can be reduced.
Description
应用领域Application field
本发明涉及变压器和电抗器领域,特别是一种内置电抗器的高阻抗变压器。The invention relates to the field of transformers and reactors, in particular to a high-impedance transformer with built-in reactors.
电网要实现安全运行,就必须要提升变压器的抗短路能力,降低电网电压的变化率和短路电流值,而这两个参数是由变压器的短路阻抗值决定的,也就是说,要降低电网电压的变化率和短路电流值,就要增大变压器的阻抗值。对于变压器来说,通常会采用在变压器的低压线圈上串联电抗器代替绝大部分设备阻抗,实现大阻抗运行目的。通常来说,为了电抗器安装方便,都会将电抗器的三个线圈呈一字型排列。To achieve safe operation of the power grid, it is necessary to improve the short-circuit resistance of the transformer, reduce the change rate of the grid voltage and the short-circuit current value, and these two parameters are determined by the short-circuit impedance value of the transformer, that is, to reduce the grid voltage The rate of change and short-circuit current value, it is necessary to increase the impedance value of the transformer. For transformers, series reactors are usually used to replace most of the equipment impedance on the low-voltage coil of the transformer to achieve high-impedance operation. Generally speaking, for the convenience of reactor installation, the three coils of the reactor are arranged in a straight line.
但是由于串联电抗器与变压器的主体器身共用一个油箱,电抗器线圈采用一字型排列时,会占用更大的空间,也就是需要将油箱外扩,其占地面积更大,生产和运输成本更高。并且,电抗器的三个线圈呈一字型排列时,三相漏磁就无法平衡,也就会造成结构件损耗大,结构件发热,同时还会产生有害气体。However, since the series reactor and the main body of the transformer share the same oil tank, when the reactor coils are arranged in a straight line, it will take up more space, that is, the oil tank needs to be expanded, and its footprint is larger. Production and transportation The cost is higher. Moreover, when the three coils of the reactor are arranged in a straight line, the three-phase magnetic flux leakage cannot be balanced, which will cause large loss of structural parts, heat generation of structural parts, and harmful gas will be generated at the same time.
发明内容Contents of the invention
本发明克服了现有技术中电抗器三个线圈采用一字型排列时占用空间大且三相漏磁无法平衡的不足,提供了一种内置电抗器的高阻抗变压器,为达到上述目的,本发明采用的技术方案为:一种内置电抗器的高阻抗变压器,其包括:低压侧线圈、高压侧线圈以及与所述低压侧线圈对应连接的电抗器,其特征在于,所述电抗器包括,三个按中心点位于正三角形顶点方式排列的线圈组件以及用于连接所述线圈组件的固定组件;The present invention overcomes the disadvantages in the prior art that when the three coils of the reactor are arranged in a straight line, it takes up a large space and the three-phase flux leakage cannot be balanced, and provides a high-impedance transformer with a built-in reactor. In order to achieve the above-mentioned purpose, the present invention The technical solution adopted in the invention is: a high-impedance transformer with a built-in reactor, which includes: a low-voltage side coil, a high-voltage side coil, and a reactor correspondingly connected to the low-voltage side coil, characterized in that the reactor includes, Three coil components arranged in such a way that the center points are located at vertices of an equilateral triangle and a fixed component for connecting the coil components;
所述固定组件包括位于线圈组件之上的上压板、位于所述上压板上的上夹 件、位于所述线圈组件之下的下托板、位于所述下托板下的下夹件和穿过所述线圈组件的三个杆状拉紧机构,所述杆状拉紧机构一端穿过所述上压板与所述上夹件固定连接,另一端穿过所述下托板与所述下夹件固定连接。The fixing assembly includes an upper pressing plate located above the coil assembly, an upper clamping piece located on the upper pressing plate, a lower supporting plate located below the coil assembly, a lower clamping element located under the lower supporting plate and a through-hole Through the three rod-shaped tensioning mechanisms of the coil assembly, one end of the rod-shaped tensioning mechanism passes through the upper pressing plate and is fixedly connected with the upper clip, and the other end passes through the lower supporting plate and the lower clamping member. The clips are fixedly connected.
本发明一个较佳实施例中,所述固定组件还包括上磁屏板和下磁屏板,所述上磁屏板设置于所述上压板与所述上夹件之间,所述下磁屏板设置于所述下托板与所述下夹件之间。In a preferred embodiment of the present invention, the fixing assembly further includes an upper magnetic shield plate and a lower magnetic shield plate, the upper magnetic shield plate is arranged between the upper pressing plate and the upper clamping piece, and the lower magnetic shield plate The screen plate is arranged between the lower support plate and the lower clamping piece.
本发明一个较佳实施例中,所述上磁屏板由硅钢带及设置在硅钢带表面的绝缘层构成,所述下磁屏板由硅钢带及设置在硅钢带表面的绝缘层构成,所述硅钢带电气连接接地的接地片。In a preferred embodiment of the present invention, the upper magnetic shield plate is composed of a silicon steel strip and an insulating layer arranged on the surface of the silicon steel strip, and the lower magnetic shield plate is composed of a silicon steel strip and an insulating layer arranged on the surface of the silicon steel strip. Silicon steel with ground lug for electrical connection to ground.
本发明一个较佳实施例中,所述线圈组件包括套设在对应杆状拉紧机构上的支撑筒和绕设在所述支撑筒外表面的线圈,所述支撑筒为木骨架外绕设纸板组成的绝缘机构。In a preferred embodiment of the present invention, the coil assembly includes a support cylinder sleeved on the corresponding rod-shaped tensioning mechanism and a coil wound on the outer surface of the support cylinder, and the support cylinder is wound around a wooden skeleton Insulation mechanism composed of cardboard.
本发明一个较佳实施例中,三个所述线圈组件环绕的区域内也设置有杆状拉紧机构。In a preferred embodiment of the present invention, a rod-shaped tensioning mechanism is also arranged in the area surrounded by the three coil components.
本发明一个较佳实施例中,所述上压板为覆盖所有线圈组件的圆板,所述上夹件与上压板同中心,从中心位置向三个杆状拉紧机构方向延伸出三个支架臂,整体呈三叉型结构;In a preferred embodiment of the present invention, the upper pressing plate is a circular plate covering all the coil components, the upper clamping piece is concentric with the upper pressing plate, and three brackets extend from the central position to the direction of the three rod-shaped tensioning mechanisms The arm has a trident structure as a whole;
所述下托板为覆盖所有线圈组件底部的圆板,所述下夹件与下托板同中心,从中心位置向三个杆状拉紧机构方向延伸出三个支架臂,整体呈三叉型结构。The lower supporting plate is a circular plate covering the bottom of all coil components, the lower clamping piece is concentric with the lower supporting plate, and three support arms extend from the center to the direction of the three rod-shaped tensioning mechanisms, and the whole is trident structure.
本发明一个较佳实施例中,所述固定组件还包括设置在下夹板底部的若干绝缘垫块。In a preferred embodiment of the present invention, the fixing assembly further includes several insulating pads arranged at the bottom of the lower splint.
本发明一个较佳实施例中,所述电抗器位于三相一字型排列变压器的一端,所述线圈与变压器内部的三个相位的线圈一一对应,具体为A相线圈、B相线圈和C相线圈,从线圈中引出的联结引线依次通过接线片和铜排连接到变压器内 对应相位的低压线圈,三个所述线圈通过XYZ三维立体空间排布。In a preferred embodiment of the present invention, the reactor is located at one end of the three-phase in-line transformer, and the coils correspond to the coils of the three phases inside the transformer, specifically A-phase coil, B-phase coil and The C-phase coil, the connecting lead wire drawn from the coil is connected to the low-voltage coil of the corresponding phase in the transformer through the lug and the copper bar in turn, and the three coils are arranged in the XYZ three-dimensional space.
本发明一个较佳实施例中,在XYZ三维空间内,变压器三相低压线圈从X向走向的铜排接入电抗器,所述A相线圈靠近变压器,A相线圈的联结引线为X向,经接线片接入Y向铜排,所述B相线圈的联结引线为Y向,经接线片接入X向转Y向铜排,所述C相线圈的联结引线为Z向,经接线片接入先X向转Z向铜排。In a preferred embodiment of the present invention, in the XYZ three-dimensional space, the three-phase low-voltage coil of the transformer is connected to the reactor from the X-directed copper bar, the A-phase coil is close to the transformer, and the connecting lead of the A-phase coil is in the X-direction, Connect the Y-direction copper bar through the lug, the connection lead wire of the B-phase coil is in the Y direction, and connect the X-direction to Y-direction copper bar through the lug, the connection lead wire of the C-phase coil is Z direction, and the connection lead wire of the C-phase coil is in the Z direction. Connect the X direction to the Z direction copper bar first.
本发明一个较佳实施例中,所述杆状拉紧机构由若干杆状拉紧机构构成,所述杆状拉紧机构均布在同一圆的圆周上,所述圆的圆心为所述杆状拉紧机构对应的线圈组件中心。In a preferred embodiment of the present invention, the rod-shaped tensioning mechanism is composed of several rod-shaped tensioning mechanisms, and the rod-shaped tensioning mechanisms are evenly distributed on the circumference of the same circle, and the center of the circle is the rod-shaped tensioning mechanism. The center of the coil assembly corresponding to the shape tensioning mechanism.
本发明解决了背景技术中存在的缺陷,本发明具备以下有益效果:The present invention solves the defect existing in the background technology, and the present invention has the following beneficial effects:
(1)本发明采用内置串联电抗器,且器身采用“品”字形排列,重量明显减轻,生产效率高、成本低、性能可靠;且加工简单,降低产品噪音,体积和质量小,便于移动和安装。另外,采用“品”字形的设置,可以保障三相漏磁互相平衡,避免发生过热现象,减小损耗,还能减小安全隐患。(1) The present invention adopts a built-in series reactor, and the body is arranged in the shape of "product", which significantly reduces the weight, high production efficiency, low cost, and reliable performance; and the processing is simple, the product noise is reduced, the volume and quality are small, and it is easy to move and install. In addition, adopting the setting of "pin" can ensure that the three-phase magnetic flux leakage is balanced with each other, avoiding overheating, reducing loss, and reducing potential safety hazards.
(2)上夹件与下夹件的结构外形呈三叉形,具有受力平衡、材料利用率高、结构损耗低的技术特点,且上夹件与下夹件的材料都是金属件,加强了机械强度,杆状拉紧机构与上夹件或下夹件固定连接,其固定强度更强。(2) The structural shape of the upper clamp and the lower clamp is trident, which has the technical characteristics of force balance, high material utilization rate, and low structural loss, and the materials of the upper clamp and the lower clamp are metal parts, which strengthen In order to improve the mechanical strength, the rod-shaped tensioning mechanism is fixedly connected with the upper clamp or the lower clamp, and its fixing strength is stronger.
(3)本发明结构简单、生产效率高、占地小、成本低,适宜对空间尺寸有严格要求的环境。(3) The present invention has the advantages of simple structure, high production efficiency, small footprint and low cost, and is suitable for environments with strict requirements on space size.
为了更清楚地说明本发明实施例或现有技术中的技术方案,下面将对实施例或现有技术描述中所需要使用的附图作简单地介绍,显而易见地,下面描述中的附图仅仅是本发明的一些实施例,对于本领域普通技术人员来讲,在不付 出创造性劳动的前提下,还可以根据这些附图获得其他实施例的附图。In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description are only These are some embodiments of the present invention. Those skilled in the art can also obtain the drawings of other embodiments according to these drawings without creative work.
图1为本发明的一实施例中所述的一种内置电抗器的高阻抗变压器主视图;Fig. 1 is a front view of a high-impedance transformer with a built-in reactor described in an embodiment of the present invention;
图2为本发明的一实施例中所述的一种内置电抗器的高阻抗变压器俯视图;Fig. 2 is a top view of a high-impedance transformer with a built-in reactor described in an embodiment of the present invention;
图3为本发明的一实施例中所述的电抗器的线圈与变压器线圈连接示意图。Fig. 3 is a schematic diagram of the connection between the coil of the reactor and the coil of the transformer according to an embodiment of the present invention.
附图标记如下说明:01、高压线圈;02、低压线圈;10、线圈组件;101、支撑筒;102、线圈;1021、引线;103、铜片;20、固定组件;201、上压板;202、上夹件;203、上磁屏板;204、杆状拉紧机构;2041、螺杆;205、下托板;206、下夹件;207、下磁屏板;301、垫块;302、***;401、接线片;402、铜排;403、木件;404、可拆卸软接线片。Reference signs are as follows: 01, high-voltage coil; 02, low-voltage coil; 10, coil assembly; 101, support cylinder; 102, coil; 1021, lead wire; 103, copper sheet; 20, fixed component; , upper clamping piece; 203, upper magnetic screen plate; 204, rod-shaped tensioning mechanism; 2041, screw rod; 205, lower supporting plate; 206, lower clamping piece; 207, lower magnetic screen plate; Locator; 401, lug piece; 402, copper bar; 403, wood piece; 404, detachable soft wiring piece.
为了能够更加清楚地理解本发明的上述目的、特征和优点,下面结合附图和具体实施方式对本发明进行进一步的详细描述,这些附图均为简化的示意图,仅以示意方式说明本发明的基本结构,因此其仅显示与本发明有关的构成,需要说明的是,在不冲突的情况下,本申请中的实施例及实施例中的特征可以相互组合。In order to more clearly understand the above objects, features and advantages of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments. structure, so it only shows the configuration related to the present invention, and it should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined with each other.
在本申请的描述中,需要理解的是,术语“中心”、“纵向”、“横向”、“上”、“下”、“前”、“后”、“左”、“右”、“竖直”、“水平”、“顶”、“底”、“内”、“外”等指示的方位或位置关系为基于附图所示的方位或位置关系,仅是为了便于描述本申请和简化描述,而不是指示或暗示所指的装置或元件必须具有特定的方位、以特定的方位构造和操作,因此不能理解为对本申请保护范围的限制。此外,术语“第一”、“第二”等仅用于描述目的,而不能理解为指示或暗示相对重要性或隐含指明所指示的技术特征的数量。因此,限定有“第一”、“第二”等的特征可以明示或者隐含地包括一个或者更多个该特征。在本发明创造的描述中,除非另有说明,“多个”的含义是两个或两个以上。In the description of the present application, it should be understood that the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", " The orientation or positional relationship indicated by "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present application and Simplified descriptions do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and thus should not be construed as limiting the scope of protection of the present application. In addition, the terms "first", "second", etc. are used for descriptive purposes only, and cannot be interpreted as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, a feature defined as "first", "second", etc. may expressly or implicitly include one or more of that feature. In the description of the present invention, unless otherwise specified, "plurality" means two or more.
在本申请的描述中,需要说明的是,除非另有明确的规定和限定,术语“安装”、“相连”、“连接”应做广义理解,例如,可以是固定连接,也可以是可拆卸连接,或一体地连接;可以是机械连接,也可以是电连接;可以直接相连,也可以通过中间媒介间接相连,可以是两个元件内部的连通。对于本领域的普通技术人员而言,可以通过具体情况理解上述术语在本申请中的具体含义。In the description of this application, it should be noted that unless otherwise specified and limited, the terms "installation", "connection", and "connection" should be understood in a broad sense, for example, it can be a fixed connection or a detachable connection. Connected, or integrally connected; it can be mechanically connected or electrically connected; it can be directly connected or indirectly connected through an intermediary, and it can be the internal communication of two components. Those of ordinary skill in the art can understand the specific meanings of the above terms in this application based on specific situations.
为了便于理解本发明,下面将参照相关附图对本发明进行更全面的描述。附图中给出了本发明的较佳实施方式。但是,本发明可以以许多不同的形式来实现,并不限于本文所描述的实施方式。相反地,提供这些实施方式的目的是使对本发明的公开内容理解的更加透彻全面。In order to facilitate the understanding of the present invention, the present invention will be described more fully below with reference to the associated drawings. Preferred embodiments of the invention are shown in the accompanying drawings. However, the present invention can be embodied in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present invention more thorough and comprehensive.
参照图3所示,一种内置电抗器的高阻抗变压器,低压侧线圈02、高压侧线圈01以及与所述低压侧线圈对应连接的电抗器,其中,参照图1所示,电抗器包括:三个按中心点位于正三角形顶点方式排列的线圈组件10以及用于连接线圈组件10的固定组件20。Referring to FIG. 3 , a high-impedance transformer with a built-in reactor, a low-voltage side coil 02, a high-voltage side coil 01, and a reactor correspondingly connected to the low-voltage side coil, wherein, referring to FIG. 1 , the reactor includes: Three coil components 10 arranged in such a way that the center points are located at vertices of an equilateral triangle and a fixing component 20 for connecting the coil components 10 are provided.
也就是说,本发明所述的一种内置电抗器的高阻抗变压器,其内部的三个线圈102采用“品”字形排列,其三相漏磁互相平衡,内部不会因为局部过热造成其他安全隐患。并且这样的排列方式相比于“一”字形排列而言更加紧密,也就是占用的体积更小,不需要将变压器的油箱外扩。That is to say, in the high-impedance transformer with built-in reactor described in the present invention, the three internal coils 102 are arranged in the shape of "pin", and the three-phase magnetic flux leakage is balanced with each other, so that other safety hazards will not be caused by local overheating inside. Hidden danger. And this kind of arrangement is more compact than the "one" arrangement, that is, it occupies a smaller volume and does not need to expand the oil tank of the transformer.
参照图1-2所示,固定组件20包括位于线圈组件10之上的上压板201、位于上压板201上的上夹件202、设置于上压板201和上夹件202之间的上磁屏板203、位于线圈组件10之下的下托板205、位于下托板205下的下夹件206、设置于下托板205与下夹件206之间的下磁屏板207和穿过线圈组件10的三个杆状拉紧机构204,杆状拉紧机构204一端依次穿过上压板201和上磁屏板203,最终与上夹件202固定连接,另一端依次穿过下托板205和下磁屏板207,最终与下夹件206固定连接。1-2, the fixing assembly 20 includes an upper plate 201 located on the coil assembly 10, an upper clamp 202 located on the upper plate 201, and an upper magnetic shield arranged between the upper plate 201 and the upper clamp 202. Plate 203, the lower support plate 205 located under the coil assembly 10, the lower clamp 206 located under the lower support plate 205, the lower magnetic shield plate 207 arranged between the lower support plate 205 and the lower clamp 206 and the coil passing through The three rod-shaped tensioning mechanisms 204 of the assembly 10, one end of the rod-shaped tensioning mechanism 204 passes through the upper platen 201 and the upper magnetic shield plate 203 in sequence, and finally is fixedly connected with the upper clamp 202, and the other end passes through the lower supporting plate 205 in sequence and the lower magnetic shield plate 207, and finally fixedly connected with the lower clip 206.
不难看出,固定组件20是通过在线圈102的上端以及下端都设置有固定夹紧线圈102的板型固定件,并且中间用杆状拉紧机构204进行固定,将其连接为一个完整的整体。其中设置上磁屏板203以及下磁屏板207来进行磁屏蔽,减少了漏磁通,避免了线圈102通电后产生的磁力线进入变压器的油箱,造成变压器油箱过热等。It is not difficult to see that the fixing assembly 20 is provided with a plate-shaped fixing member for fixing and clamping the coil 102 at the upper end and the lower end of the coil 102, and is fixed with a rod-shaped tensioning mechanism 204 in the middle to connect it as a complete whole . The upper magnetic shield plate 203 and the lower magnetic shield plate 207 are provided for magnetic shielding, which reduces the leakage flux and prevents the magnetic field lines generated after the coil 102 is energized from entering the oil tank of the transformer, causing overheating of the oil tank of the transformer.
具体来说,上磁屏板203由硅钢带及设置在硅钢带表面的绝缘层构成,下磁屏板207由硅钢带及设置在硅钢带表面的绝缘层构成,硅钢带电气连接接地的接地片。硅钢材料的导磁率高,磁屏蔽效果好。本发明用上磁屏板203以及下磁屏板207,代替传统一字型电抗器的铁心或上下铁轭,其结构简单、生产效率高、占地小、成本低,适宜对空间尺寸有严格要求的环境。Specifically, the upper magnetic shield plate 203 is composed of a silicon steel strip and an insulating layer arranged on the surface of the silicon steel strip, the lower magnetic shield plate 207 is composed of a silicon steel strip and an insulating layer arranged on the surface of the silicon steel strip, and the silicon steel strip is electrically connected to the grounding sheet . Silicon steel material has high magnetic permeability and good magnetic shielding effect. The present invention uses the upper magnetic shield plate 203 and the lower magnetic shield plate 207 to replace the iron core or the upper and lower iron yokes of the traditional inline reactor. required environment.
继续参照图1-2所示,线圈组件10包括套设在对应杆状拉紧机构204上的支撑筒101和绕设在支撑筒101外表面的线圈102,这里的线圈102按中心点位于正三角形顶点方式排列,支撑筒101为木骨架外绕设纸板组成的绝缘机构。Continuing to refer to FIGS. 1-2, the coil assembly 10 includes a support cylinder 101 sleeved on the corresponding rod-shaped tensioning mechanism 204 and a coil 102 wound on the outer surface of the support cylinder 101. The apexes of the triangles are arranged in a way, and the support cylinder 101 is an insulating mechanism composed of cardboard wrapped around a wooden skeleton.
三个线圈组件10环绕的区域内也设置有杆状拉紧机构204。杆状拉紧机构204由若干螺杆2041构成,螺杆2041均布在同一圆的圆周上,圆的圆心为杆状拉紧机构204对应的线圈组件10中心。A rod-shaped tensioning mechanism 204 is also provided in the area surrounded by the three coil assemblies 10 . The rod-shaped tensioning mechanism 204 is composed of several screw rods 2041 , and the screw rods 2041 are evenly distributed on the circumference of the same circle, and the center of the circle is the center of the coil assembly 10 corresponding to the rod-shaped tensioning mechanism 204 .
这里,根据磁通特性,杆状拉紧机构204中的螺杆2041可以是导通的也可以是不导通的,根据磁力线分布情况,确定上下金属件的连接方式,形成合理的磁路以及接地***,避免形成换流,产生过热情况。Here, according to the magnetic flux characteristics, the screw rod 2041 in the rod-shaped tensioning mechanism 204 can be conductive or non-conductive. According to the distribution of the magnetic force lines, the connection mode of the upper and lower metal parts is determined to form a reasonable magnetic circuit and grounding. system to avoid commutation and overheating.
参照图2所示,上压板201为覆盖所有线圈组件10的圆板,上夹件202与上压板201同中心,从中心位置向三个杆状拉紧机构204方向延伸出三个支架臂,整体呈三叉型结构;下托板205为覆盖所有线圈组件10底部的圆板,下夹件206与下托板205同中心,从中心位置向三个杆状拉紧机构204方向延伸出三个支架臂,整体呈三叉型结构。上夹件202与下夹件206的结构外形呈三叉 形,具有受力平衡、材料利用率高、结构损耗低的技术特点。并且,这里,上夹件202与下夹件206的材料都是金属件,加强了机械强度,杆状拉紧机构204与上夹件202以及下夹件206固定连接,其固定强度更强。Referring to Fig. 2, the upper pressing plate 201 is a circular plate covering all the coil assemblies 10, the upper clamping piece 202 is concentric with the upper pressing plate 201, and three support arms extend from the central position to the direction of the three rod-shaped tensioning mechanisms 204, The whole is a trident structure; the lower supporting plate 205 is a circular plate covering the bottom of all coil assemblies 10, the lower clamping piece 206 is concentric with the lower supporting plate 205, and three rod-shaped tensioning mechanisms 204 extend from the central position to the three rod-shaped tensioning mechanisms 204. The bracket arm has a trident structure as a whole. The structural profile of the upper clamping part 202 and the lower clamping part 206 is a trident shape, which has the technical characteristics of balanced force, high material utilization rate, and low structural loss. Moreover, here, the materials of the upper clamping part 202 and the lower clamping part 206 are metal parts, which enhances the mechanical strength, and the rod-shaped tensioning mechanism 204 is fixedly connected with the upper clamping part 202 and the lower clamping part 206, and its fixing strength is stronger.
参照图1所示,固定组件20还包括设置在下夹板底部的若干绝缘垫块301。这里的绝缘垫块301是由柔性材料制成的,在变压器工作时,减缓器身的振动,降低了器身与地面造成的工作噪音,并且固定组件20的底部还设置有***302,可以帮助电抗器的三个线圈102在组装时更加精确,更加保障了三项漏磁能够互相平衡。Referring to FIG. 1 , the fixing assembly 20 further includes several insulating spacers 301 arranged at the bottom of the lower splint. The insulating spacer 301 here is made of flexible material, which slows down the vibration of the transformer body and reduces the working noise caused by the body and the ground when the transformer is in operation, and the bottom of the fixing assembly 20 is also provided with a locator 302, which can It helps the three coils 102 of the reactor to be assembled more precisely, which ensures that the three flux leakages can be balanced with each other.
参照图3所示,电抗器位于三相一字型排列变压器的一端,线圈102与变压器内部的三个相位的线圈102一一对应,具体为A相线圈102、B相线圈102和C相线圈102,从线圈102中引出的联结引线1021依次通过接线片401和铜排402连接到变压器内对应相位的低压线圈102,三个线圈102通过XYZ三维立体空间排布。具体来说,在XYZ三维空间内,变压器三相低压线圈102从X向走向的铜排402接入电抗器,A相线圈102靠近变压器,A相线圈102的联结引线1021为X向,经接线片401接入Y向铜排402,B相线圈102的联结引线1021为Y向,经接线片401接入X向转Y向铜排402,C相线圈102的联结引线1021为Z向,经接线片401接入先X向转Z向铜排402。Referring to Figure 3, the reactor is located at one end of the three-phase in-line transformer, and the coils 102 correspond to the three-phase coils 102 inside the transformer, specifically, the A-phase coil 102, the B-phase coil 102 and the C-phase coil 102, the connecting lead wire 1021 drawn from the coil 102 is connected to the low-voltage coil 102 of the corresponding phase in the transformer through the lug 401 and the copper bar 402 in turn, and the three coils 102 are arranged in the XYZ three-dimensional space. Specifically, in the XYZ three-dimensional space, the transformer three-phase low-voltage coil 102 is connected to the reactor from the X-directed copper bar 402, the A-phase coil 102 is close to the transformer, and the connecting lead wire 1021 of the A-phase coil 102 is in the X-direction. The piece 401 is connected to the Y-direction copper bar 402, the connection lead wire 1021 of the B-phase coil 102 is in the Y direction, and the X-direction is connected to the Y-direction copper bar 402 through the lug 401, and the connection lead wire 1021 of the C-phase coil 102 is in the Z direction. The lug 401 is connected to the copper bar 402 that turns from the X direction to the Z direction.
这里,铜排402是通过木件403进行固定的。且电抗器与变压器之间通过可拆卸式软接线片404活动连接。这里采用可拆卸式的连接,电抗器的器身与变压器的器身拆接就更加方便,并且也便于运输。Here, the copper bar 402 is fixed by a wooden piece 403 . Moreover, the reactor and the transformer are flexibly connected through a detachable flexible wire piece 404 . The detachable connection is adopted here, and it is more convenient to disassemble the body of the reactor and the body of the transformer, and it is also convenient for transportation.
除此以外,由于电抗器的磁屏蔽及其他的金属结构件在线圈102的电场作用下,具有不同的电位,与油箱电位又不同。虽然它们之间电位差不大,但也将通过很小的绝缘距离而继续放电。放电一方面使油分解,一方面无法确认变压器在试验和运行中的状态是否正常,因此铁心及其金属结构件必须接地。本 发明中的上磁屏板203通过铜片103与上夹件202相连,下磁屏板207通过铜片103与下夹件206相连,上夹件202、下夹件206通过低磁钢的杆状拉紧机构204连接在一起。电抗器整体通过减震结构落在变压器油箱底部,最后通过联结引线1021与变压器主体连接,保证了一点接地,也就保证了变压器和电抗器的正常工作。In addition, due to the magnetic shielding of the reactor and other metal structural parts, under the action of the electric field of the coil 102, they have different potentials, which are different from the potential of the fuel tank. Although the potential difference between them is not large, they will continue to discharge through a small insulation distance. On the one hand, the discharge causes the oil to decompose, and on the other hand, it is impossible to confirm whether the transformer is in a normal state during the test and operation, so the iron core and its metal structural parts must be grounded. The upper magnetic shield plate 203 in the present invention is connected with the upper clamp 202 through the copper sheet 103, the lower magnetic shield plate 207 is connected with the lower clamp 206 through the copper sheet 103, and the upper clamp 202 and the lower clamp 206 are connected by the low magnetic steel Rod tensioning mechanisms 204 are connected together. The reactor as a whole falls on the bottom of the transformer oil tank through the shock-absorbing structure, and finally connects with the main body of the transformer through the connection lead 1021 to ensure a little grounding, which also ensures the normal operation of the transformer and the reactor.
与内置串联电抗器器身结构相比,本发明提供的电抗器结构体积和重量明显减轻,生产效率高、成本低、性能可靠。且加工简单,降低产品噪音,体积和质量小,便于移动和安装。并且,采用“品”字形的设置,可以保障三相漏磁互相平衡,避免发生过热现象,减小损耗,还能减小安全隐患。Compared with the body structure of the built-in series reactor, the volume and weight of the reactor structure provided by the invention are obviously reduced, and the production efficiency is high, the cost is low, and the performance is reliable. Moreover, the processing is simple, the noise of the product is reduced, the volume and quality are small, and it is easy to move and install. Moreover, adopting the setting of the character "pin" can ensure the mutual balance of the three-phase magnetic flux leakage, avoid overheating, reduce loss, and reduce potential safety hazards.
以上实施例仅表达了本发明的几种实施方式,其描述较为具体和详细,但并不能因此而理解为对发明专利范围的限制。应当指出的是,对于本领域的普通技术人员来说,在不脱离本发明构思的前提下,还可以做出若干变形和改进,这些都属于本发明的保护范围。因此,本发明专利的保护范围应以所附权利要求为准。The above examples only express several implementation modes of the present invention, and the description thereof is relatively specific and detailed, but should not be construed as limiting the patent scope of the invention. It should be noted that those skilled in the art can make several modifications and improvements without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the patent for the present invention should be based on the appended claims.
Claims (10)
- 一种内置电抗器的高阻抗变压器,其包括:低压侧线圈、高压侧线圈以及与所述低压侧线圈对应连接的电抗器,其特征在于,所述电抗器包括,三个按中心点位于正三角形顶点方式排列的线圈组件以及用于连接所述线圈组件的固定组件;A high-impedance transformer with a built-in reactor, which includes: a low-voltage side coil, a high-voltage side coil, and a reactor correspondingly connected to the low-voltage side coil, wherein the reactor includes three Coil components arranged in the form of triangular vertices and a fixing component for connecting the coil components;所述固定组件包括位于线圈组件之上的上压板、位于所述上压板上的上夹件、位于所述线圈组件之下的下托板、位于所述下托板下的下夹件和穿过所述线圈组件的三个杆状拉紧机构,所述杆状拉紧机构一端穿过所述上压板与所述上夹件固定连接,另一端穿过所述下托板与所述下夹件固定连接。The fixing assembly includes an upper pressing plate located above the coil assembly, an upper clamping piece located on the upper pressing plate, a lower supporting plate located below the coil assembly, a lower clamping element located under the lower supporting plate and a through-hole Through the three rod-shaped tensioning mechanisms of the coil assembly, one end of the rod-shaped tensioning mechanism passes through the upper pressing plate and is fixedly connected with the upper clip, and the other end passes through the lower supporting plate and the lower clamping member. The clips are fixedly connected.
- 根据权利要求1所述的一种内置电抗器的高阻抗变压器,其特征在于:所述固定组件还包括上磁屏板和下磁屏板,所述上磁屏板设置于所述上压板与所述上夹件之间,所述下磁屏板设置于所述下托板与所述下夹件之间。The high-impedance transformer with built-in reactor according to claim 1, characterized in that: the fixing assembly further includes an upper magnetic shield plate and a lower magnetic shield plate, and the upper magnetic shield plate is arranged between the upper pressure plate and the lower magnetic shield plate Between the upper clips, the lower magnetic shield is arranged between the lower supporting plate and the lower clips.
- 根据权利要求2所述的一种内置电抗器的高阻抗变压器,其特征在于:所述上磁屏板由硅钢带及设置在硅钢带表面的绝缘层构成,所述下磁屏板由硅钢带及设置在硅钢带表面的绝缘层构成,所述硅钢带电气连接接地的接地片。A high-impedance transformer with built-in reactor according to claim 2, characterized in that: the upper magnetic shield plate is composed of a silicon steel strip and an insulating layer arranged on the surface of the silicon steel strip, and the lower magnetic shield plate is composed of a silicon steel strip and an insulating layer arranged on the surface of the silicon steel strip, the silicon steel strip is electrically connected to the grounding sheet.
- 根据权利要求1所述的一种内置电抗器的高阻抗变压器,其特征在于:所述线圈组件包括套设在对应杆状拉紧机构上的支撑筒和绕设在所述支撑筒外表面的线圈,所述支撑筒为木骨架外绕设纸板组成的绝缘机构。The high-impedance transformer with built-in reactor according to claim 1, characterized in that: the coil assembly includes a support cylinder sleeved on the corresponding rod-shaped tensioning mechanism and a coil wound around the outer surface of the support cylinder. coil, and the supporting cylinder is an insulating mechanism composed of wooden skeleton wound with cardboard.
- 根据权利要求1所述的一种内置电抗器的高阻抗变压器,其特征在于:三个所述线圈组件环绕的区域内也设置有杆状拉紧机构。The high-impedance transformer with built-in reactor according to claim 1, characterized in that: a rod-shaped tensioning mechanism is also arranged in the area surrounded by the three coil assemblies.
- 根据权利要求1所述的一种内置电抗器的高阻抗变压器,其特征在于:所述上压板为覆盖所有线圈组件的圆板,所述上夹件与上压板同中心,从中心位置向三个杆状拉紧机构方向延伸出三个支架臂,整体呈三叉型结构;A high-impedance transformer with built-in reactor according to claim 1, characterized in that: the upper pressing plate is a circular plate covering all the coil components, the upper clamping piece is concentric with the upper pressing plate, three directions from the center position Three bracket arms are extended in the direction of a rod-shaped tensioning mechanism, and the whole is a trident structure;所述下托板为覆盖所有线圈组件底部的圆板,所述下夹件与下托板同中心,从中心位置向三个杆状拉紧机构方向延伸出三个支架臂,整体呈三叉型结构。The lower supporting plate is a circular plate covering the bottom of all coil components, the lower clamping piece is concentric with the lower supporting plate, and three support arms extend from the center to the direction of the three rod-shaped tensioning mechanisms, and the whole is trident structure.
- 根据权利要求1所述的一种内置电抗器的高阻抗变压器,其特征在于:所述固定组件还包括设置在下夹板底部的若干绝缘垫块。The high-impedance transformer with built-in reactor according to claim 1, characterized in that: the fixing assembly further includes several insulating pads arranged at the bottom of the lower splint.
- 根据权利要求1所述的一种内置电抗器的高阻抗变压器,其特征在于:所述电抗器位于三相一字型排列变压器的一端,所述线圈与变压器内部的三个相位的线圈一一对应,具体为A相线圈、B相线圈和C相线圈,从线圈中引出的联结引线依次通过接线片和铜排连接到变压器内对应相位的低压线圈,三个所述线圈通过XYZ三维立体空间排布。A high-impedance transformer with built-in reactor according to claim 1, characterized in that: the reactor is located at one end of the three-phase in-line transformer, and the coil is one-to-one with the three-phase coils inside the transformer Corresponding, specifically A-phase coils, B-phase coils and C-phase coils, the connecting leads drawn from the coils are connected to the low-voltage coils of the corresponding phases in the transformer through lugs and copper bars in turn, and the three coils pass through the XYZ three-dimensional space arranged.
- 根据权利要求8所述的一种内置电抗器的高阻抗变压器,其特征在于:在XYZ三维空间内,变压器三相低压线圈从X向走向的铜排接入电抗器,所述A相线圈靠近变压器,A相线圈的联结引线为X向,经接线片接入Y向铜排,所述B相线圈的联结引线为Y向,经接线片接入X向转Y向铜排,所述C相线圈的联结引线为Z向,经接线片接入先X向转Z向铜排。The high-impedance transformer with built-in reactor according to claim 8, characterized in that: in the XYZ three-dimensional space, the three-phase low-voltage coil of the transformer is connected to the reactor from the copper bar running in the X direction, and the A-phase coil is close to Transformer, the connecting lead wire of the A-phase coil is in the X direction, and is connected to the Y-direction copper bar through the lug, the connecting lead wire of the B-phase coil is in the Y direction, and is connected to the X-direction to Y-direction copper bar through the lug, and the C The connection leads of the phase coils are in the Z direction, and are connected to the X direction to the Z direction copper bar through the lug.
- 根据权利要求1所述的一种内置电抗器的高阻抗变压器,其特征在于,所述杆状拉紧机构由若干杆状拉紧机构构成,所述杆状拉紧机构均布在同一圆的圆周上,所述圆的圆心为所述杆状拉紧机构对应的线圈组件中心。The high-impedance transformer with built-in reactor according to claim 1, characterized in that, the rod-shaped tensioning mechanism is composed of several rod-shaped tensioning mechanisms, and the rod-shaped tensioning mechanisms are evenly distributed in the same circle On the circumference, the center of the circle is the center of the coil assembly corresponding to the rod-shaped tensioning mechanism.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202111178536.9A CN113903575B (en) | 2021-10-10 | 2021-10-10 | High-impedance transformer with built-in reactor |
CN202111178536.9 | 2021-10-10 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2023056657A1 true WO2023056657A1 (en) | 2023-04-13 |
Family
ID=79190844
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/CN2021/123549 WO2023056657A1 (en) | 2021-10-10 | 2021-10-13 | High-impedance transformer having built-in reactor |
Country Status (2)
Country | Link |
---|---|
CN (1) | CN113903575B (en) |
WO (1) | WO2023056657A1 (en) |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4951024A (en) * | 1989-12-27 | 1990-08-21 | Master Control Systems, Inc. | High efficiency saturating reactor for starting a three phase motor |
CN201142262Y (en) * | 2007-11-29 | 2008-10-29 | 思源电气股份有限公司 | Triangle disposition iron core shunt reactor |
CN101697311A (en) * | 2009-11-03 | 2010-04-21 | 保定天威集团有限公司 | Built-in reactor structure of high-impedance transformer |
CN202363228U (en) * | 2011-12-16 | 2012-08-01 | 天威保变(合肥)变压器有限公司 | 500kV-grade three-phase three-winding excitation-free pressure regulating high-impedance power transformer |
CN203706810U (en) * | 2014-02-17 | 2014-07-09 | 天津市德诺电气有限公司 | Three-dimensional triangular dry type electric reactor |
CN213400844U (en) * | 2020-11-30 | 2021-06-08 | 保定天威集团特变电气有限公司 | Built-in reactor structure of transformer |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS61198609A (en) * | 1985-02-27 | 1986-09-03 | Toshiba Corp | Core type reactor |
CN103050260A (en) * | 2012-12-24 | 2013-04-17 | 保定天威保变电气股份有限公司 | 330kV-level three-phase three-winding high-impedance power auto-transformer with function of on-load voltage regulation |
CN104900384A (en) * | 2015-06-10 | 2015-09-09 | 上海华力电控设备有限公司 | Energy-saving environment-protection low-noise complete equipment |
CN106783097A (en) * | 2017-02-22 | 2017-05-31 | 山东输变电设备有限公司 | Reactor body magnetic leakage shielding structure |
CN208938784U (en) * | 2018-09-26 | 2019-06-04 | 南京大全变压器有限公司 | A kind of novel solid triangle iron core transformer resistance to shorting structure |
CN209232563U (en) * | 2019-01-11 | 2019-08-09 | 江西大族能源科技股份有限公司 | A kind of three dimensional wound core natural grease Insulation Oil Transformer |
CN211507339U (en) * | 2020-01-20 | 2020-09-15 | 青岛中加特电气股份有限公司 | Three-dimensional iron core fixing device |
-
2021
- 2021-10-10 CN CN202111178536.9A patent/CN113903575B/en active Active
- 2021-10-13 WO PCT/CN2021/123549 patent/WO2023056657A1/en unknown
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4951024A (en) * | 1989-12-27 | 1990-08-21 | Master Control Systems, Inc. | High efficiency saturating reactor for starting a three phase motor |
CN201142262Y (en) * | 2007-11-29 | 2008-10-29 | 思源电气股份有限公司 | Triangle disposition iron core shunt reactor |
CN101697311A (en) * | 2009-11-03 | 2010-04-21 | 保定天威集团有限公司 | Built-in reactor structure of high-impedance transformer |
CN202363228U (en) * | 2011-12-16 | 2012-08-01 | 天威保变(合肥)变压器有限公司 | 500kV-grade three-phase three-winding excitation-free pressure regulating high-impedance power transformer |
CN203706810U (en) * | 2014-02-17 | 2014-07-09 | 天津市德诺电气有限公司 | Three-dimensional triangular dry type electric reactor |
CN213400844U (en) * | 2020-11-30 | 2021-06-08 | 保定天威集团特变电气有限公司 | Built-in reactor structure of transformer |
Also Published As
Publication number | Publication date |
---|---|
CN113903575A (en) | 2022-01-07 |
CN113903575B (en) | 2023-03-17 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US11417456B2 (en) | High-voltage transformer and electronic power apparatus | |
CN206451577U (en) | A kind of transformer | |
WO2023056657A1 (en) | High-impedance transformer having built-in reactor | |
CN201629196U (en) | Insulation pulse type transformer | |
CN101373655B (en) | Iron core reactor | |
CN105428003A (en) | Hollow core splitting reactor | |
CN204155732U (en) | A kind of iron-core reactor | |
CN106253122A (en) | A kind of Cubicle Gas-Insulated Switchgear | |
CN101373659A (en) | Coil-out apparatus of reactor coil and iron core reactor containing the same | |
CN201181634Y (en) | Coil-out device of reactor coil and iron-core reactor containing the same | |
CN207977190U (en) | A kind of testing transformer with damping insulation function | |
CN220232907U (en) | Mutual inductor body structure | |
CN201181641Y (en) | Iron-core reactor | |
CN206421893U (en) | Transformer New Low Voltage winding leading-out wire structure | |
CN201796717U (en) | Voltage transformer | |
CN201149800Y (en) | Double body structure of reactor | |
CN220155341U (en) | 35kV wind power cabin built-in transformer | |
CN211628870U (en) | Dry-type 10kV and 20kV general energy-saving distribution transformer | |
CN220604471U (en) | Flexible connection structure for high-voltage coil leading-out end of dry-type transformer | |
KR101494599B1 (en) | Auto molded transformer for an electric-railroad power supply | |
CN219085783U (en) | Disposable switchable resonance-eliminating voltage transformer | |
CN219790970U (en) | Safety fixing device for transportation of inverted current transformer | |
CN209880335U (en) | Transformer with lightning protection function | |
CN218274231U (en) | Current transformer | |
CN217035356U (en) | Fixing structure of transformer triangular three-dimensional iron core |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 21959747 Country of ref document: EP Kind code of ref document: A1 |
|
NENP | Non-entry into the national phase |
Ref country code: DE |