WO2009024008A1 - Réacteur à noyau de fer - Google Patents

Réacteur à noyau de fer Download PDF

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Publication number
WO2009024008A1
WO2009024008A1 PCT/CN2008/001228 CN2008001228W WO2009024008A1 WO 2009024008 A1 WO2009024008 A1 WO 2009024008A1 CN 2008001228 W CN2008001228 W CN 2008001228W WO 2009024008 A1 WO2009024008 A1 WO 2009024008A1
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WO
WIPO (PCT)
Prior art keywords
coil
parallel
reactor
iron core
bodies
Prior art date
Application number
PCT/CN2008/001228
Other languages
English (en)
French (fr)
Inventor
Juntao Zhong
Yumin Ren
Xingyao Gao
Chunzhen Gu
Shubo Sun
Original Assignee
Tebian Electric Apparatus Stock Co., Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=40377810&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=WO2009024008(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Tebian Electric Apparatus Stock Co., Ltd filed Critical Tebian Electric Apparatus Stock Co., Ltd
Priority to US12/674,407 priority Critical patent/US8203409B2/en
Priority to BRPI0814911-9A priority patent/BRPI0814911A2/pt
Priority to EP08772984.4A priority patent/EP2187408B1/en
Priority to CA2697047A priority patent/CA2697047C/en
Publication of WO2009024008A1 publication Critical patent/WO2009024008A1/zh

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Classifications

    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01FMAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F27/00Details of transformers or inductances, in general
    • H01F27/24Magnetic cores
    • H01F27/26Fastening parts of the core together; Fastening or mounting the core on casing or support
    • H01F27/263Fastening parts of the core together
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01FMAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F37/00Fixed inductances not covered by group H01F17/00

Definitions

  • the invention belongs to the technical field of reactors and relates to a core reactor. Background technique
  • the existing single-phase iron core reactors are all composed of a single Japanese-shaped iron core and a single coil set.
  • This structure is suitable for products with a certain voltage and a certain capacity, but when the voltage level and capacity reach a certain level (such as the voltage level is After 800KV and a product with a capacity of lOOOOOOvar), as the product is enlarged, the width and height of the product are further increased, which makes it difficult to transport the reactor.
  • the creepage distance of the insulation of the product itself is limited, it is not allowed to increase the voltage without limitation at a certain insulation distance.
  • the creepage voltage of the insulating member is increased, which may bring a safety hazard to the product.
  • the outlet of the coil is supported by an insulating slat fixed to the upper and lower yokes of the clamping core (the frame of the Japanese-shaped iron core), and when the voltage level reaches a certain level, its creepage distance is restricted.
  • the creepage voltage of the insulating slats to the ground is large, and it is easy to be unreliable for the operation of the reactor.
  • the wall box of the fuel tank for placing the reactor body in the prior art is a single layer, and the system voltage applicable to the structure and the noise and vibration of the reactor body are limited, when the voltage is applied to the core reactor.
  • the capacity reaches a certain level, due to the limitation of transportation and insulation materials, the single core and the coil cannot meet the transportation and insulation requirements of high-voltage and large-capacity products, and the electromagnetic force of the core of the single core is caused by the large-capacity product.
  • the vibration is also difficult to control, and the vibration and noise generated by the core are transmitted to the outside of the tank through the solid and insulating oil, which cannot meet the environmental requirements of the operation of the power system. Summary of the invention
  • the technical problem to be solved by the present invention is to provide an iron core reactor which is relatively simple in assembly, convenient in transportation, small in leakage magnetic loss, and reliable in operation, in view of the above-mentioned deficiencies of the single-phase iron core reactor in the prior art.
  • the technical solution adopted to solve the technical problem of the present invention is that the core reactor includes a reactor body, wherein the reactor body includes two or more separate bodies, and coils inside each body are coupled together .
  • the coils inside each body may be coupled together in series or in parallel. That is, the connection mode of each coil may be a series connection or a parallel connection.
  • the first coil in the first body has one end as an incoming end, and the other end of the first coil and the second body.
  • One end of the second coil is connected, and the other end of the second coil is an outlet end, which is connected in series;
  • the series connection may also be that the first coil and the second coil are connected in series by the middle inlet line, that is, the first coil is used in the middle of the coil.
  • the part is incoming, the two ends are taken out and connected in parallel as the incoming line of the second coil, the second coil is used in the middle of the coil, the two ends are connected in parallel, and the two ends are connected in parallel and the second The middle of the coil is connected in series.
  • the number of coil array segments of the two coils is increased compared to the total number of segments of the single-column coil, and the total coil height is increased, so that the coils at the working voltage are in the surface.
  • the creepage distance is greatly increased, and the two coils share the working voltage to ensure the reliability of the insulation of the reactor under the working voltage.
  • the coils of the two bodies can be connected in parallel by the parallel connection: the ends of the coils are connected in parallel, that is, one end of the two coils is connected in parallel as the incoming end, and the other end of the two coils is connected.
  • the line ends are connected in parallel as the outlet ends; the parallel connection may also be: the first coil in the first body and the second coil in the second body are both centered, and the central inlet ends are connected in parallel.
  • the upper and lower ends of the two coils are connected in parallel and then connected in parallel as the outlet end, that is, the first coil is used in the middle of the coil, and the upper and lower ends are taken out and connected in parallel, and the second coil is taken in the middle of the coil, The ends are taken out and connected in parallel, and the first coil and the second coil are connected in parallel at the middle of the two coils, and the two ends of the first coil are connected in parallel with the two ends of the second coil to form a line end.
  • Parallel connection can be adopted when the transportation and electrical performance are satisfied.
  • the insulation level of the coil end is not high.
  • each body in the reactor is similar to the coil structure in the above-mentioned double body structure.
  • connection manner of each coil in the body of the present invention is by no means limited to the above four connection modes.
  • the arrangement of the bodies may be parallel, and the arrangement may be such that the lead wires (connections between the two coils) are away from the ground potential, and the diameters of the electrodes of the lead wires may be reduced; or arranged in a line In this arrangement, the magnetic flux leakage between the coils in each body is small.
  • the body of the reactor of the present invention can also adopt other arrangements.
  • each of the individual bodies respectively includes a Japanese-shaped iron core
  • the middle portion of the Japanese-shaped iron core is a plurality of core cakes with a central hole and a plurality of iron core columns which are overlapped by air gaps.
  • the bodies of the reactor can be placed in the same reactor tank.
  • the insulation distance can be different due to the different voltages applied under the working voltage. Therefore, the size of the two bodies can be one size or one small.
  • the voltage capacity of the first body can be 30-70%, and the voltage capacity of the second body is 70-30%.
  • the dimensions of the two bodies can also be set to be identical.
  • the wire take-up device of the coil can be directly connected to the reactor.
  • the outlet device may be specifically connected to the outer diameter of the coil of the reactor body, and includes a U-shaped insulating plate and a metal grading shielding insulating layer covering the outside of the U-shaped insulating plate.
  • the U-shaped insulating plate can also be replaced by a cylindrical insulating plate, but the u-shaped insulating plate is improved on the basis of the cylindrical insulating plate, the purpose is to increase the electrode diameter, improve the electric field distribution, and reduce the distance to the ground. And the U-shaped insulating plate saves space and saves material compared to the cylindrical insulating plate.
  • the outlet device may further comprise an outer insulating layer covering the outer layer of the metal grading shield insulating layer, and an oil gap between the outer insulating layer and the metal grading insulating layer.
  • an insulating layer is to divide the insulating oil gap, improve the electric field distribution, reduce the insulation distance, and save raw materials.
  • the reactor tank is configured by a partial double tank wall, and a plurality of slats are arranged on the inner side of the tank wall, and a second tank wall is fixed on the slat.
  • the slats include transverse slats and vertical slats forming a plurality of grids, and the second tank walls are formed by covering the respective grids with a panel corresponding to each grid size.
  • the length of the vertical slats is higher than the height of the reactor tank The degree is generally determined according to the actual situation, and its width can be 50mm.
  • a radiator can be connected to the fuel tank of the reactor.
  • the heat sinks are symmetrically distributed on one or both sides of the reactor tank or distributed around the reactor tank.
  • the fan oil can also be used to dissipate the transformer oil using a fan cooler and a water cooler.
  • the invention adopts the double body structure or the multi-body structure, so that the pressing of the core of the single core and the clamping of the iron yoke are easily ensured, thereby controlling the noise and the vibration, and simultaneously adopting the single device with the same capacity product.
  • the loss concentration is improved, which improves the temperature distribution of the whole product and avoids the local hot spot problem in the body (local overheating is related to the size of the magnetic flux leakage, and the magnetic flux leakage of different capacity products)
  • the size is different. The larger the capacity, the more magnetic leakage.
  • the capacity of each body is reduced by half, and the relative magnetic flux leakage is reduced by half.
  • the outlet device of the invention is directly fixed on the reactor, and solves the problem that the creepage distance of the insulating material is small under the limited transportation allowable height, and the creepage of the ground due to the support structure of the prior structure is avoided.
  • the problem is to ensure the operational reliability of high voltage products.
  • the partial double-layer fuel tank structure of the invention limits the electromagnetic force of the core cake and the noise and vibration caused by the hysteresis of the iron yoke to the outside of the fuel tank and the fuel tank when the alternating current is passed through the reactor, and the double layer of the invention is adopted.
  • the cross-connected metal slats of the fuel tank structure divide the entire first tank wall to reduce the vibration amplitude of the steel surface of the tank wall, and the double-layer tank structure plays a soundproofing effect on the noise generated by the iron core.
  • the operation at the site played an environmentally friendly role.
  • the reactor of the present invention uses two or more bodies to reduce the capacity of the single column, the structure of the body is advantageous for the control of the magnetic flux leakage and the heat dissipation of the winding, so that it can be applied to any voltage level of any one.
  • Reactors with capacity requirements, for 1000kV, lOOOOOOvar products, their insulation reliability and transportation can meet the requirements.
  • Figure 1 is a front view showing the structure of a core reactor body according to an embodiment of the present invention (using a dual body)
  • Figure 2 is a side view of Figure 1.
  • FIG 3 is a front view showing the structure of two bodies in a core reactor according to an embodiment of the present invention (two bodies are used, and the two bodies are arranged in parallel)
  • Figure 4 is a top view of Figure 3.
  • FIG. 5 is a front view showing the structure of the dual-device in the iron core reactor according to the embodiment of the present invention (two bodies are used, and the two bodies are arranged in a line shape)
  • Figure 6 is a top view of Figure 5.
  • Figure 7 is an enlarged view of Figure 4.
  • Figure 8 is a plan view of a core reactor according to an embodiment of the present invention (with four sets of heat sinks)
  • FIG. 9 is a connection diagram of a series connection of two coils in the middle of the embodiment of the present invention.
  • FIG. 10 is a connection diagram of a series connection of two coil ends in the embodiment of the present invention.
  • FIG. 1 is a schematic diagram of parallel connection of two coils in the middle of the embodiment of the present invention.
  • FIG. 12 is a connection diagram of the parallel connection of two coil ends in the embodiment of the present invention.
  • FIG. 13A is a front view showing the installation structure of the outlet device in the embodiment of the present invention.
  • Figure 13B is a top view of Figure 13A
  • Figure 14 is a schematic view showing the structure of the outlet device mounted on the curved plate in the embodiment of the present invention (the outlet device only shows a simplified diagram)
  • FIG. 15 is a schematic structural diagram of a wire outlet device according to an embodiment of the present invention.
  • Figure 16 is a plan view showing the structure of the oil tank in the embodiment of the present invention.
  • Figure 17 is a plan view of the tank wall of Figure 16
  • Figure 18 is a view of the A-A direction at P in Figure 17.
  • the core reactor includes a reactor main body 3, an oil conservator 4, and a radiator 5.
  • the reactor body 3 includes a reactor body.
  • the reactor body adopts a double body structure, that is, includes two separate bodies, and the two bodies are connected together by coils inside thereof. Both bodies are placed in the reactor tank 6, and the fuel tank 6 is in communication with the oil conservator 4.
  • each body includes a Japanese-shaped iron core 7 and a coil 8, and each of the Japanese-shaped iron cores is a plurality of core cakes with a central hole. 9 and a plurality of air gaps overlap the core column 10, the core column 10 is pulled down by a plurality of pulling screws passing through the center hole, and the upper, lower and both sides are formed by stacking iron cores of a certain thickness. The screw is clamped and the coil 8 is placed on the core column 10.
  • the arrangement of the two bodies can be arranged in parallel (as shown in Figures 3 and 4) or in a line (as shown in Figures 5 and 6).
  • the coils 8 of the two bodies are connected in series or in parallel.
  • Figure 10 shows a series connection.
  • the coil in the first body that is, the end of the first coil 1 1 is the incoming end, and the other end of the first coil 11 and the coil in the second body, that is, the second coil 12 One end is connected, and the other end of the second coil 12 is an outgoing end, which is connected in series.
  • Figure 12 shows the parallel connection mode.
  • the coils inside the two bodies are connected in parallel by the parallel connection of the two coils as the incoming end, and the outlet ends of the two coils are connected in parallel as the outgoing end; the first coil The first coil 11 and the second coil 12 are connected in parallel from the other end, that is, the first coil 11 and the second coil 12 are respectively taken from one end, and the other end is taken out, and then connected in parallel.
  • connection methods are suitable for reactor products with large capacity and low voltage.
  • This connection method can simplify the product structure.
  • connection mode shown in Fig. 9 or Fig. 11 is adopted.
  • first coil 11 and the second coil 12 are connected in series by a central feed line, that is, the first coil 11 is used in the middle of the coil, and The ends are taken out and connected in parallel, and the second coil 12 is taken in the middle of the coil, the ends of which are taken out and connected in parallel, and the ends of the first coil 11 are connected in parallel with the middle of the second coil 12.
  • Figure 11 shows a parallel connection mode.
  • the first coil 11 and the second coil 12 are connected in parallel by a central feed line.
  • the parallel connection is a coil in the first body, that is, the first coil 1 1 and the second coil.
  • the coil in the body, that is, the second coil 12 adopts the middle inlet line, and the middle inlet ends are connected in parallel.
  • the upper and lower ends of the two coils are connected in parallel and then connected in parallel as the outlet end, that is, the first coil is used in the middle of the coil.
  • the upper and lower ends are taken out and connected in parallel
  • the second coil is taken in the middle of the coil
  • the upper and lower ends are out of line and connected in parallel
  • the first coil and the second coil are connected in parallel at the middle of the two coils
  • the first coil is two
  • the end portion is coupled in parallel with both end portions of the second coil as an outlet end.
  • connection methods are suitable for high-capacity, high-voltage reactor products, which can ensure that the reactor has good heat dissipation performance and reliable insulation performance.
  • the wire take-up device 13 of the present invention is affixed to the outer diameter side of the coil of the reactor body by a curved plate 17 made of insulating cardboard as a support for the entire outlet device 13.
  • a support plate 29 made of insulating paperboard is mounted in the middle of the two edges along the axial direction of the curved plate 17, and a holding plate 30 made of insulating cardboard is fixed on the support plate 29, and the holding plate is fixed.
  • the upper and lower support arms 18 are made of insulating cardboard, and the two support arms 18 support the outlet device 13.
  • the outlet device 13 includes a U-shaped insulating plate 19, a metal grading shield insulating layer 20 covering the outside of the U-shaped insulating plate 19, and an outer insulating layer 21 covering the metal grading insulating insulating layer 20. .
  • the U-shaped insulating plate 19 is formed by two semi-arc-shaped insulating cardboards respectively fixed on the upper and lower support arms 18, and the two semi-arc insulating cardboards are oppositely arranged, and can be formed into a complete whole after being bundled. From the front or side, the upper part of the two insulating cardboard is U-shaped.
  • the double bodies of the reactor are placed in the reactor tank, and the tank is constructed with a partial double tank structure.
  • a double tank wall structure can be employed in the portion of the tank wall 14 that faces the reactor body (i.e., near the core yoke).
  • the oil tank 6 is made of steel material, and the shape of the oil tank 6 is rectangular. Or square.
  • the thickness of the tank wall 14 is 6-16, the thickness of the bottom of the tank is 20 _ 60 ⁇ , and the thickness of the roof is 10-40 mm.
  • a plurality of horizontally and vertically intersecting metal slats 15 are welded to the inner side surface of the tank wall 14, and the slats 15 constitute a plurality of rectangular frames, and a plurality of metal slats are rectangular.
  • a plurality of rectangular steel plates can be re-welded correspondingly on the frame, and a plurality of rectangular steel plates form a second tank wall 16.
  • the thickness of the slat 15 is 4-50 ram
  • the thickness of the second casing 16 is 4-20 rara o
  • FIG. 8 As shown in Fig. 8, four sets of heat sinks 5 are connected to the reactor tank 6 of the present invention.
  • the heat sink 5 is symmetrically distributed on both sides of the reactor tank 6.

Description

一种铁心电抗器 技术领域
本发明属于电抗器技术领域, 涉及一种铁心电抗器。 背景技术
现有的单相铁心电抗器都是由单个日字形铁心, 单个线圈套装, 这种结构对于一定电压、一定容量以下的产品是合适的, 但是当电压 等级、 容量达到一定程度(如电压等级为 800KV、 容量为 lOOOOOkvar 的产品)后, 随着产品的大型化, 产品的宽度、高度尺寸进一步增加, 给电抗器的运输带来了困难。另外, 由于产品本身的绝缘件爬电距离 是有限制的,并不是在一定绝缘距离下,可以允许电压无限制的增加。 当产品的电压等级进一步升高时, 绝缘件所承受的爬电电压增加, 会 给产品带来安全隐患。
另外, 现有的电抗器中, 线圈的出线是由固定在夹紧铁心上下 轭(日字形铁心的边框)上的绝缘板条支撑, 当电压等级达到一定程 度时, 它的爬电距离受到制约, 绝缘板条对地的爬电电压大, 容易境 成电抗器运行的不可靠。
此外, 现有技术中用于放置电抗器器身的油箱箱壁为单层, 这 种结构适用的系统电压和防止电抗器本体的噪声和振动有局限性,当 作用在铁心电抗器上的电压、容量达到一定程度时, 由于运输和绝缘 材料的限制, 单个铁心和线圈不能满足高电压、大容量产品的运输和 绝缘要求, 相对于大容量产品, 单个铁心的铁心饼的电磁力和其引起 的振动也难控制,同时铁心产生的振动和噪声通过固体和绝缘油传递 到油箱外侧, 不能满足电力系统运行的环保要求。 发明内容
本发明所要解决的技术问题是针对现有技术中单相铁心电抗器 所存在的上述不足, 提供一种装配相对简单、 运输方便、 漏磁损耗小、 且运行可靠的铁心电抗器。 解决本发明技术问题所采用的技术方案是该铁心电抗器包括电 抗器器身, 其中, 所述电抗器器身包括两个或两个以上单独的器身, 各器身内部的线圈联接在一起。
各器身内部的线圈联接在一起可以通过串联联接, 也可以通过 并联联接。 即各线圈的连接方式可以为串联, 也可以为并联。
当电抗器采用两个器身时, 两器身内部的线圈通过串联联接在 一起可以是第一器身中的第一线圈的一端为进线端,第一线圈的另一 端与第二器身中的第二线圈的一端连接, 第二线圈的另一端为出线 端, 形成串联联接; 串联也可以是第一线圈与第二线圈采用中部进线 串联连接, 即第一线圈采用在线圈的中间部位进线, 其两端部出线并 且并联后作为第二线圈的进线, 第二线圈采用在线圈的中部进线, 其 两端部并联后出线,第一线圈两端部并联后与第二线圈的中部进线串 联。
当本发明两器身内的两个线圈串联时,在满足运输高度的前提下, 两线圈的线圈排列段数比单柱线圈的总段数增加, 总的线圈高度增加, 使在工作电压下的线圈沿面的爬电距离大大增加, 两个线圈共同承受 工作电压, 保证了工作电压下的电抗器产品绝缘的可靠性。
当电抗器采用两个器身时, 两器身的线圈通过并联联接在一起 可以是: 线圈端部并联, 即两线圈的一端作为进线端并联在一起作进 线端, 两线圈的另一端作为出线端并联在一起作出线端; 并联联接在 一起也可以是:第一器身中的第一线圈与第二器身中的第二线圈都采 用中部进线, 并且中部进线端并联连接, 两线圈的上下两端并联在一 起后再并联作为出线端, 即第一线圈采用在线圈的中部进线, 其上下 端部出线并且并联, 第二线圈采用在线圈的中部进线, 其上下端部出 线并且并联, 第一线圈与第二线圈两线圈的中部进线端并联, 第一线 圈两端部与第二线圈的两端部并联联接作出线端。
在满足运输和电气性能情况下可以采用并联的方式, 当釆用中部 进线的方式时, 对线圈末端的绝缘水平要求不高。
当电抗器采用多器身时,各器身内部的线圈也为串联或并联联接, 电抗器中各器身的线圈结构也与上述双器身结构中的线圈结构类似。 当然, 本发明器身中各线圈的连接方式决不限于上述四种连接 方式。
优选的是, 器身的排列方式可以为平行排列, 采用这种排列方 式可以使引出线(两线圈之间的连线)远离地电位, 并且引出线的电 极直径可以缩小; 或呈一字形排列, 采用这种排列方式时各器身内线 圈之间的漏磁互相干扰小。
当然, 本发明电抗器各器身也可以采用其他的排列方式。
本发明中, 各个单独的器身分别包括一个日字形铁心, 日字形 铁心中部为多个带有中心孔的铁心饼和多个气隙交叠而成的铁心柱。
所述电抗器的各器身可置于同一电抗器油箱内。 当电抗器采用 两器身时, 由于工作电压下所作用的电压不同, 绝缘距离可以不同, 因此两器身的尺寸可为一大一小, 在两器身为串联结构时, 根据具体 情况, 第一个器身的电压容量可为 30— 70%, 则第二个器身的电压容 量为 70— 30%。 当然, 两器身的尺寸也可以设为完全相同。
优选的是, 本发明中, 线圈的出线装置可直接连接在电抗器器 身上。 所述出线装置具体可连接在电抗器器身的线圈外径上, 包括 U 形绝缘板和覆于 U形绝缘板外的金属均压屏蔽绝缘层。其中 U形绝缘 板也可以被圆柱形绝缘板所代替,但 u形绝缘板是在圆柱形绝缘板的 基础上改进而成的, 目的是增大电极直径, 改善电场分布, 减小对地 距离, 并且 U形绝缘板比圆柱形绝缘板节约空间, 节约材料。
更优选的是, 所述出线装置还可包括有覆于金属均压屏蔽绝缘 层外的外包绝缘层, 在外包绝缘层与金属均压屏蔽绝缘层之间有油 隙。 采用外包绝缘层的目的是分割绝缘油隙, 改善电场分布, 缩小绝 缘距离, 节约原材料。
进一步优选的是, 所述电抗器油箱釆用局部双层油箱壁的结构, 在箱壁的内侧面上有多个板条, 板条上固定有第二箱壁。
所述板条包括横向板条和竖向板条, 形成多个网格, 第二箱壁 由与每个网格大小相对应的块板覆盖在各个网格上构成。
所述板条采用金属制成, 每个横向板条的尺寸可以为: 长 X宽 = 650讓 X 50隱, 厚度为 4-50mm。竖向板条的长度与电抗器油箱的高 度有关, 一般根据实际情况来确定, 其宽度可为 50mm。
此外, 电抗器的油箱上还可连接有散热器。 所述散热器对称分 布在电抗器油箱的一侧或二侧或在电抗器油箱的四周分布。
本发明中也可以采用带风扇的冷却器和水冷却器对变压器油进 行散热。
本发明由于采用了双器身结构或多器身结构, 使单独铁心的心柱 的压紧和铁轭的夹紧容易保证, 进而对噪声和振动得到了控制, 同时 与相同容量产品采用单器身的电抗器比较而言, 其损耗集中得到了改 善, 从而改善了整个产品的温度分布, 避免了器身中局部存在的热点 问题 (局部过热与漏磁的大小有关, 不同容量产品的漏磁大小是不同 的, 容量越大, 漏磁越多, 当采用两个器身时, 相当于每个器身容量 要减少一半, 相对的漏磁就减少一半) 。
本发明的出线装置由于直接固定在电抗器器身上, 解决了在有限 的运输允许高度下, 绝缘物质的爬电距离的裕度小, 避免了由于以往 结构采用支撑绝缘板条的对地爬电问题, 保证了高电压产品的运行可 靠性。
本发明的局部双层油箱结构,限制了在电抗器中通有交流电流时, 铁心饼的电磁力和铁轭的磁滞伸缩引起的噪声和振动传到油箱和油箱 外侧, 采用本发明双层油箱结构的交叉连接的金属板条对整个第一层 油箱壁进行了区域分割, 降低了箱壁钢铁表面的振动幅值, 同时双层 油箱结构对铁心产生的噪声起到了隔音的作用, 对产品在现场的运行 起到了环保的作用。
由于本发明电抗器采用两个或多个器身, 从而使单柱容量减小, 这种器身结构对漏磁的控制、绕组的散热都有利, 因此可适用于任何 一款有不同电压等级、容量要求的电抗器, 对于 1000kV、 lOOOOOkvar 的产品, 其绝缘可靠性和运输方面都能满足要求。 附图说明
图 1 为本发明实施例中铁心电抗器器身的结构主视图(采用双 器身) 图 2 为图 1的侧视图
图 3 为本发明实施例中铁心电抗器中两器身的结构主视图(采 用两器身, 且两器身平行排列)
图 4 为图 3的俯视图
图 5 为本发明实施例中铁心电抗器中双器身分结构主视图(采 用两器身, 且两器身呈一字形排列)
图 6 为图 5的俯视图
图 7 为图 4的放大视图
图 8 为本发明实施例中铁心电抗器的俯视图 (带有四组散热 器)
图 9 为本发明实施例中两线圈中部进线串联的连接图 图 10 为本发明实施例中两线圈端部进线串联的连接图 图 1 1 为本发明实施例中两线圈中部进线并联的连接图 图 12 为本发明实施例中两线圈端部进线并联的连接图 图 13A 为本发明实施例中出线装置的安装结构主视图
图 13B 为图 13A的俯视图
图 14 为本发明实施例中出线装置装于弧形板上的结构示意图 (出线装置只示出了简图)
图 15 为本发明实施例中出线装置的结构示意图
图 16 为本发明实施例中油箱的结构俯视图
图 17 为图 16中油箱壁的平面结构图
图 18 为图 17中 P .处的 A— A向视图
图中: 1一高压套管 2—中性点高压套管 3—电抗器主体 4 一储油柜 5—散热器 6—油箱 7—铁心 8—线圈 9一铁心饼 10—铁心柱 11一第一线圈 12—第二线圈 13—出线装置 14一 油箱壁 15—板条 16—第二箱壁 17—弧形板 18—支撑臂 19 - U 形绝缘板 20—金属均压屏蔽绝缘层 21—外包绝缘层 22— 油隙 23—油隙支撑绝缘块 24—引线 25—套管 26—绝缘板 27—绝缘绑扎带 28—撑条 29—支撑板 30—夹持板 具体实施方式
以下结合实施例和附图, 对本发明作进一步详细描述。
下面实施例为本发明的非限定性实施例。
如图 1、 2、 8所示, 本实施例中, 铁心电抗器包括电抗器主体 3、 储油柜 4、 散热器 5。 电抗器主体 3包括电抗器器身, 本实施例中, 电抗器器身采用双器身结构, 即包括两个单独的器身, 两器身通过其 内部的线圈连接在一起。两器身都置于电抗器油箱 6内, 油箱 6与储 油柜 4连通。
如图 3— 7所示, 本实施例的电抗器双器身结构中, 每个器身包 括一个日字形铁心 7和线圈 8, 每个日字形铁心中间是多个带有中心 孔的铁心饼 9和多个气隙交叠成的铁心柱 10, 铁心柱 10由穿过中心 孔的多个拉螺杆上下拉紧, 上、下和两边是由一定厚度的铁心叠积而 成, 由穿心螺杆夹紧, 线圈 8套装在铁心柱 10上。
两器身的排列方式可采用平行排列 (如图 3、 4所示) 或一字形 排列 (如图 5、 6所示) 。
两器身中线圈 8的连接方式为串联或并联。
图 10所示为串联连接方式, 第一器身中的线圈即第一线圈 1 1 的一端为进线端,第一线圈 11的另一端与第二器身中的线圈即第二 线圈 12的一端连接, 第二线圈 12的另一端为出线端, 形成串联联 接。
图 12所示为并联连接方式, 两器身内部的线圈通过并联联接在 一起是两线圈的进线端并联在一起作为进线端,两线圈的出线端并联 在一起作为出线端;第一线圈 1 1与第二线圈 12采用端部出线并联方 式连接, 即第一线圈 1 1与第二线圈 12分别从一端进线, 从另一端出 线, 再并联。
上述两种连接方式适用于容量大、 电压低的电抗器产品, 采用 这种连接方式可以简化产品结构。
本实施例中采用图 9或图 1 1所示的连接方式。
图 9所示为串联连接方式, 第一线圈 11与第二线圈 12采用中 部进线串联的方式连接, 即第一线圈 1 1采用在线圈的中部进线, 其 端部出线并且并联, 第二线圈 12采用在线圈的中部进线, 其端部出 线并且并联, 第一线圈 11端部并联后与第二线圈 12的中部串联。
图 1 1所示为并联连接方式, 第一线圈 1 1与第二线圈 12采用中 部进线并联方式连接,并联联接在一起是第一器身中的线圈即第一线 圈 1 1与第二器身中的线圈即第二线圈 12都采用中部进线,并且中部 进线端并联连接,两线圈的上下两端端部并联在一起后再并联作为出 线端,即第一线圈采用在线圈的中部进线,其上下端部出线并且并联, 第二线圈采用在线圈的中部进线, 其上下端部出线并且并联, 第一线 圈与第二线圈两线圈的中部进线端并联,第一线圈两端部与第二线圈 的两端部并联联接作为出线端。
上述两种连接方式适用于大容量、 高电压的电抗器产品, 能确 保电抗器具有良好的散热性能, 并且绝缘性能可靠。
如图 13A、 13B所示, 本发明的出线装置 13通过绝缘纸板制成 的弧形板 17绑扎在电抗器器身中线圈的外径侧, 作为整个出线装置 13的支架。 如图 14所示, 沿弧形板 17的轴向方向两个边缘的中部 装有绝缘纸板制成的支撑板 29, 支撑板 29上固定有绝缘纸板制成的 夹持板 30, 夹持板 30上有绝缘纸板制成的上下两个支撑臂 18, 这两 个支撑臂 18上支撑着出线装置 13。
如图 15所示, 所述出线装置 13包括 U形绝缘板 19、 覆于 U形 绝缘板 19外的金属均压屏蔽绝缘层 20、覆于金属均压屏蔽绝缘层 20 外的外包绝缘层 21。 在外包绝缘层 21与金属均压屏蔽绝缘层 20之 间有油隙 22。 其中, U形绝缘板 19由分别固定在上下两个支撑臂 18 上的两个半弧形绝缘纸板捆合在一起形成,两半弧形绝缘纸板相对设 置, 捆扎后可形成为一个完整的整体, 从正面或侧面看, 合为一体的 两绝缘纸板上部呈 U形。
如图 16— 18所示, 本实施例中电抗器的双器身都置于电抗器油 箱内, 所述油箱釆用局部双层油箱结构。 如图 16所示, 在油箱壁 14 正对电抗器器身的部分(即在靠近铁心旁轭处)可采用双层油箱壁结 构。
本实施例中, 油箱 6采用钢铁材料制成, 油箱 6的形状为矩形 或方形。 其中, 油箱壁 14的厚度为 6—16隱, 箱底厚度为 20 _ 60瞧, 箱顶厚度为 10— 40mm。
如图 17、 18所示, 在油箱壁 14的内侧面上焊接有多个水平和 垂直交叉的金属板条 15, 所述板条 15构成了多个矩形框, 在多个金 属板条的矩形框上可相应地再焊接多块矩形钢板,多块矩形钢板形成 了第二箱壁 16。 其中, 板条 15的厚度为 4-50 ram, 第二箱壁 16的 厚度为 4-20 rara o
如图 8所示, 本发明电抗器油箱 6上连接有四组散热器 5。 散热 器 5对称分布在电抗器油箱 6的二侧。

Claims

权 利 要 求 书
1. 一种铁心电抗器, 包括电抗器器身, 其特征在于所述电抗器 器身包括两个或两个以上单独的器身, 各器身内部的线圈 (8 ) 联接 在一起。
2. 根据权利要求 1所述的铁心电抗器, 其特征在于两器身内部 的线圈 (8 ) 联接在一起可以通过串联联接, 也可以通过并联联接。
3. 根据权利要求 2所述的铁心电抗器, 其特征在于当电抗器采 用两个器身时,两器身内部的线圈通过串联联接在一起可以是以第一 器身中第一线圈 (11 ) 的一端为进线端, 第一线圈的另一端与第二器 身中第二线圈 (12 ) 的一端连接, 第二线圈的另一端为出线端, 形成 串联联接; 串联也可以是第一线圈 (11 ) 与第二线圈 (12 ) 采用中部 进线串联连接, 即第一线圈 (11 )采用在线圈的中间部位进线, 其两 端部出线并且并联后作为第二线圈 (12 ) 的进线, 第二线圈采用在线 圈的中部进线, 其两端部并联后出线, 第一线圈两端部并联后与第二 线圈的中部进线串联。
4. 根据权利要求 2所述的铁心电抗器, 其特征在于当电抗器釆 用两个器身时,两器身内部的线圈通过并联联接在一起可以是线圈端 部并联, 即两线圈的一端作为进线端并联在一起作进线端, 两线圈的 另一端作为出线端并联在一起作出线端;并联联接在一起也可以是第 一器身中第一线圈 (11 ) 与第二器身中的第二线圈 (12 ) 都采用中部 进线, 并且中部进线端并联连接, 两线圈的上下两端并联在一起后再 并联作为出线端, 即第一线圈 (11 ) 采用在线圈的中部进线, 其上下 端部出线并且并联, 第二线圈 (12 ) 采用在线圈的中部进线, 其上下 端部出线并且并联, 第一线圈与第二线圈两线圈的中部进线端并联, 第一线圈两端部与第二线圈的两端部并联联接作出线端。
5. 根据权利要求 1所述的铁心电抗器, 其特征在于电抗器各器 身的排列方式为平行排列或呈一字形排列。
6. 根据权利要求 1所述的铁心电抗器, 其特征在于电抗器各器 身分别包括一个日字形铁心 (7) , 日字形铁心中部为多个带有中心 孔的铁心饼 (9) 和多个气隙交叠而成的铁心柱 (10) 。
7. 根据权利要求 1所述的铁心电抗器, 其特征在于器身中线圈 的出线装置 (13) 直接连接在各电抗器器身上。
8. 根据权利要求 7所述的铁心电抗器, 其特征在于所述出线装 置 (13) 连接在电抗器器身的线圈外径上, 包括 U形绝缘板 (19) 和 覆于 U形绝缘板外的金属均压屏蔽绝缘层 (20) 。
9. 根据权利要求 8所述的铁心电抗器, 其特征在于所述出线装 置还包括有覆于金属均压屏蔽绝缘层 (20) 外的外包绝缘层 (21) , 在外包绝缘层(21)与金属均压屏蔽绝缘层(20)之间有油隙(22) 。
10. 根据权利要求 1 所述的铁心电抗器, 其特征在于所述电抗 器各器身都置于同一电抗器油箱 (6) 内。
Π. 根据权利要求 7 所述的铁心电抗器, 其特征在于所述电抗 器油箱采用局部双层油箱的结构, 即在油箱壁(14) 的内侧面上有多 个板条 (15) , 板条 (15) 上固定有第二箱壁 (16) 。
12. 根据权利要求 11所述的铁心电抗器, 其特征在于所述板条 (15) 包括横向板条和竖向板条, 形成多个网格, 第二箱壁 (16) 由 与每个网格大小相对应的块板覆盖在各个网格上构成。
13. 根据权利要求 12所述的铁心电抗器, 其特征在于所述板条 (15) 采用金属制成, 其厚度为 4- 50 第二箱壁 (16) 的厚度为 4-20 mm
14. 根据权利要求 1一 13 之一所述的铁心电抗器, 其特征在于 电抗器的油箱上连接有散热器 (5)
15. 根据权利要求 14所述的铁心电抗器, 其特征在于所述散热 器 (5) 对称分布在电抗器油箱的一侧或二侧或四周。
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102360721A (zh) * 2011-06-03 2012-02-22 北京英博电气股份有限公司 一种拼装式单相电抗器

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102420040A (zh) * 2011-12-06 2012-04-18 保定天威集团有限公司 一种单油箱双器身并联电抗器
CN109148131A (zh) * 2018-10-31 2019-01-04 嘉善华瑞赛晶电气设备科技有限公司 悬挂式环形阳极饱和电抗器
CN110289152A (zh) * 2019-07-31 2019-09-27 山东哈大电气有限公司 一种铁心电抗器结构及其加工方法
CN111384709B (zh) * 2020-03-09 2022-04-26 中国科学院电工研究所 一种高压大容量分裂电抗型限流器

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58130512A (ja) * 1982-01-29 1983-08-04 Hitachi Ltd 接続リ−ド構造
CN2263411Y (zh) * 1995-09-19 1997-09-24 武汉水利电力大学 磁阀式可控电抗器
CN1162183A (zh) * 1996-03-14 1997-10-15 株式会社日立制作所 直流绝缘套管
CN1169579A (zh) * 1996-06-20 1998-01-07 合阳电力电容器制造有限责任公司 全密封串联电抗器
GB2326028A (en) * 1997-05-27 1998-12-09 Peter George Rampton A transformer housing with a ventilated base arrangement
CN1243324A (zh) * 1998-07-24 2000-02-02 郭欲平 一种变压器

Family Cites Families (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB327295A (en) * 1929-04-12 1930-04-03 Edward Lloyd Pease Improvements in or relating to tanks having external cooling elements, applicable tooil tanks for electrical transformers
US3156624A (en) * 1961-01-30 1964-11-10 Gen Dynamics Corp Nuclear reactor system
US3703692A (en) * 1971-11-03 1972-11-21 Hipotronics Mechanically adjustable high voltage inductive reactor for series resonant testing
US3774135A (en) * 1972-12-21 1973-11-20 Hitachi Ltd Stationary induction apparatus
CA1098187A (en) * 1977-02-23 1981-03-24 George F. Mitchell, Jr. Vaporization cooled and insulated electrical inductive apparatus
US4142230A (en) * 1977-03-24 1979-02-27 Tokyo Shibaura Denki Kabushiki Kaisha Sealed DC power converting station
SU1394249A1 (ru) * 1986-05-05 1988-05-07 Производственное Объединение "Уралэлектротяжмаш" Им.В.И.Ленина Сглаживающий реактор мощного вентильного преобразовател
ATE73572T1 (de) * 1987-04-09 1992-03-15 Siemens Ag Hochspannungsisolationsanordnung fuer transformatoren und drosselspulen, insbesondere zur hochspannungs-gleichstrom-uebertragung (hgue).
JPH05190362A (ja) * 1992-01-17 1993-07-30 Toshiba Corp ギャップ付鉄心形リアクトル
JPH06181125A (ja) * 1992-12-14 1994-06-28 Fuji Electric Co Ltd 分解輸送式変圧器の鉄心輸送方法とその輸送容器
JP3357705B2 (ja) * 1993-04-19 2002-12-16 株式会社東芝 ギャップ付鉄心形リアクトル
JPH0817661A (ja) * 1994-06-29 1996-01-19 Toshiba Corp 変換用変圧器装置及びその輸送方法
CN2273072Y (zh) * 1996-07-25 1998-01-21 魏书庆 电控接地消弧装置
WO2002031942A1 (en) * 2000-10-12 2002-04-18 Abb Ab Current limiting device, an electrical power system including such a device as well as use of such a device
CN2508362Y (zh) * 2001-10-31 2002-08-28 特变电工衡阳变压器有限公司 110kv低噪声变压器油箱
CN1377049A (zh) * 2002-05-09 2002-10-30 刘有斌 气体绝缘干式空芯电抗器
CN2598111Y (zh) * 2003-01-03 2004-01-07 常州变压器厂 变压器隔音油箱
ITMC20030051A1 (it) * 2003-05-16 2004-11-17 Marco Gaetano Gentili Sistema per realizzare trasformatori elettrici trifase con ridotta emissione di energia elettromagnetica nell'ambiente
CN2757307Y (zh) * 2004-09-09 2006-02-08 郭爱华 铁心电抗器
CN1737960A (zh) * 2005-09-05 2006-02-22 沪光集团有限公司 环形铁心电抗器
CN2820764Y (zh) * 2005-09-06 2006-09-27 周翔 安全油箱
US20080044323A1 (en) * 2006-08-15 2008-02-21 Pete Rosas Power generation system
CN201181641Y (zh) * 2007-08-20 2009-01-14 特变电工股份有限公司 一种铁心电抗器

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58130512A (ja) * 1982-01-29 1983-08-04 Hitachi Ltd 接続リ−ド構造
CN2263411Y (zh) * 1995-09-19 1997-09-24 武汉水利电力大学 磁阀式可控电抗器
CN1162183A (zh) * 1996-03-14 1997-10-15 株式会社日立制作所 直流绝缘套管
CN1169579A (zh) * 1996-06-20 1998-01-07 合阳电力电容器制造有限责任公司 全密封串联电抗器
GB2326028A (en) * 1997-05-27 1998-12-09 Peter George Rampton A transformer housing with a ventilated base arrangement
CN1243324A (zh) * 1998-07-24 2000-02-02 郭欲平 一种变压器

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102360721A (zh) * 2011-06-03 2012-02-22 北京英博电气股份有限公司 一种拼装式单相电抗器

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