JP2011082387A - Static induction electrical apparatus - Google Patents

Static induction electrical apparatus Download PDF

Info

Publication number
JP2011082387A
JP2011082387A JP2009234386A JP2009234386A JP2011082387A JP 2011082387 A JP2011082387 A JP 2011082387A JP 2009234386 A JP2009234386 A JP 2009234386A JP 2009234386 A JP2009234386 A JP 2009234386A JP 2011082387 A JP2011082387 A JP 2011082387A
Authority
JP
Japan
Prior art keywords
insulating
wound
iron core
induction device
conductor tube
Prior art date
Legal status (The legal status 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 status listed.)
Granted
Application number
JP2009234386A
Other languages
Japanese (ja)
Other versions
JP5522658B2 (en
Inventor
Toru Tonomura
徹 外村
Yukio Tamaoki
幸男 玉置
Yasuhiro Fujimoto
泰広 藤本
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Tokuden Co Ltd Kyoto
Original Assignee
Tokuden Co Ltd Kyoto
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
Application filed by Tokuden Co Ltd Kyoto filed Critical Tokuden Co Ltd Kyoto
Priority to JP2009234386A priority Critical patent/JP5522658B2/en
Publication of JP2011082387A publication Critical patent/JP2011082387A/en
Application granted granted Critical
Publication of JP5522658B2 publication Critical patent/JP5522658B2/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Landscapes

  • Coils Of Transformers For General Uses (AREA)
  • Transformer Cooling (AREA)

Abstract

<P>PROBLEM TO BE SOLVED: To increase cooling efficiency of an iron core where a coil is wound in a static induction electrical apparatus. <P>SOLUTION: An insulating paper 13 consisting of a polyimide film all over whose surface a non-solvent insulating adhesive layer 14 is formed is wound about an iron core 11 with a cross-sectional circular shape on which an involute magnetic steel plate is radially laminated, whereupon an insulating conductor pipe 12 constituting a coil for applying AC voltage is wound, and refrigeration fluid is applied to the insulating conductor pipe. The polyimide film all over whose surface the non-solvent insulating adhesive layer 14 is formed is superior in thermal conductivity, and thus, the iron core is effectively cooled by the refrigeration fluid applied to the conductor pipe. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

本発明は、変圧器やリアクトルなどの静止型誘導機器、詳しくは静止型誘導機器における鉄心の冷却に関するものである。   The present invention relates to cooling of a static induction device such as a transformer or a reactor, and more particularly to cooling of an iron core in a static induction device.

たとえば静止型誘導機器の一つである衝合型乾式変圧器において、変圧器入力コイルと出力コイルとの間に配置する混触防止板に冷却媒体通流路を形成し、その冷却媒体通流路に水や油などの冷却流体を通流して冷却能力を高め、コイルの径を小さくして導線の使用量を低減し、変圧器を小型化することが考えられている。図4は、このような衝合型乾式変圧器におけるコイル部を示すもので、この図4において、1は断面円形状の脚鉄心、2はポリイミド系フイルムからなる絶縁紙、3は入力コイル(一次コイル)、4は第1の出力コイル(二次コイル)、5は第2の出力コイル(三次コイル)、6は絶縁処理した細い中空導体管を巻回した混触防止板、7は絶縁紙2の全面に塗着した乾燥時に発泡が起きない無溶剤系絶縁接着剤層である。すなわち、絶縁紙2の表裏全面に無溶剤系絶縁接着剤を塗着して絶縁層が形成されている。 For example, in an abutting dry transformer, which is one of static induction devices, a cooling medium flow path is formed in an anti-contact plate arranged between the transformer input coil and the output coil, and the cooling medium flow path It has been considered to increase the cooling capacity by passing a cooling fluid such as water or oil, reduce the diameter of the coil to reduce the amount of conductors used, and reduce the size of the transformer. FIG. 4 shows a coil portion in such an abutting dry transformer. In FIG. 4, 1 is a leg-shaped core with a circular cross section, 2 is an insulating paper made of polyimide film, 3 is an input coil ( (Primary coil), 4 is a first output coil (secondary coil), 5 is a second output coil (tertiary coil), 6 is an anti-contact plate wound with a thin hollow conductor tube that has been insulated, and 7 is an insulating paper. 2 is a solventless insulating adhesive layer that is applied to the entire surface of 2 and does not foam when dried. That is, the insulating layer is formed by applying a solventless insulating adhesive on the entire front and back surfaces of the insulating paper 2.

そして、脚鉄心1に絶縁紙2を巻き、その上に第1の出力コイル4の1層目を巻き、無溶剤系絶縁接着剤層7を両面に塗着した絶縁紙2を巻き、第1の出力コイル4の2層目を巻く。第2の出力コイル4の2層目の上に無溶剤系絶縁接着剤層7を両面に塗着した絶縁紙2を巻き、その上に混触防止板6を配置して無溶剤系絶縁接着剤層7を両面に塗着した絶縁紙2を巻き、入力コイル3の1層目を巻き、その上に無溶剤系絶縁接着剤層7を両面に塗着した絶縁紙2を巻き、入力コイル3の2層目を巻く。以下、無溶剤系絶縁接着剤層7を両面に塗着した絶縁紙2を巻き混触防止板6を配置して無溶剤系絶縁接着剤層7を両面に塗着した絶縁紙2を巻き、第2の出力コイル5の1層目を巻き、その上に無溶剤系絶縁接着剤層7を両面に塗着した絶縁紙2を巻き、第2の出力コイル5の2層目を巻き、絶縁紙11を巻き付けてコイル部を作成する。 Then, the insulating paper 2 is wound around the leg iron core 1, the first layer of the first output coil 4 is wound thereon, and the insulating paper 2 coated with the solventless insulating adhesive layer 7 on both sides is wound. The second layer of the output coil 4 is wound. The insulating paper 2 coated with a solvent-free insulating adhesive layer 7 on both sides is wound on the second layer of the second output coil 4, and an anti-mixing plate 6 is disposed on the insulating paper 2 to provide a solvent-free insulating adhesive. The insulating paper 2 with the layer 7 applied on both sides is wound, the first layer of the input coil 3 is wound, and the insulating paper 2 with the solventless insulating adhesive layer 7 applied on both sides is wound thereon, and the input coil 3 is wound. Roll the second layer. In the following, the insulating paper 2 coated with the solventless insulating adhesive layer 7 on both sides is wrapped with the anti-coating plate 6 and the insulating paper 2 coated with the solventless insulating adhesive layer 7 on both sides is wound. 2 is wound on the first layer of the output coil 5, the insulating paper 2 coated with the solvent-free insulating adhesive layer 7 is wound on both sides, and the second layer of the second output coil 5 is wound on the insulating paper. 11 is wound and a coil part is created.

このようにコイル部を作成した脚鉄心1の複数を継鉄心8に締付固定して変圧器本体を作成し、この変圧器本体を、冷却風を挿通する容器内に収納して変圧器を完成させる。この変圧器の運転時には、混触防止板6の管内に水または油などの冷却された流体を流す。この冷却流体の通流により混触防止板6は冷却され、その冷却により脚鉄心1および各コイル4、5、6は冷却される。この場合、導体間に配置した無溶剤系絶縁接着剤層7およびポリイミド系フイルムからなる絶縁紙2は断熱効果が低く、熱伝導性が高いのでその冷却効果を高めることができる。 A plurality of leg iron cores 1 with the coil portions thus formed are fastened and fixed to the yoke core 8 to produce a transformer body, and this transformer body is housed in a container through which cooling air is inserted to place the transformer. Finalize. During operation of this transformer, a cooled fluid such as water or oil is allowed to flow through the tube of the anti-contact plate 6. The contact prevention plate 6 is cooled by the flow of the cooling fluid, and the leg iron core 1 and the coils 4, 5, 6 are cooled by the cooling. In this case, the insulating paper 2 made of the solventless insulating adhesive layer 7 and the polyimide film disposed between the conductors has a low heat insulating effect and a high thermal conductivity, so that the cooling effect can be enhanced.

この場合、図5に示すような、インボリュート曲線状に湾曲した磁性鋼板9a(以下、インボリュート磁性鋼板という。)を放射状に積み重ね断面円形状に作成(図示例は、これをABCの3重に重ね合わせて所定の径に作成)した断面ほぼ完全な円形(周面に段差がない)をなす鉄心9を脚鉄心とすれば、その脚鉄心は渦電流損が小さいので、脚鉄心自体の発熱を低減することができる。   In this case, as shown in FIG. 5, magnetic steel plates 9a curved in an involute curve shape (hereinafter referred to as involute magnetic steel plates) are radially stacked to create a circular cross section (in the illustrated example, these are stacked in three layers of ABC. If the iron core 9 having a substantially complete circular shape (with no step on the peripheral surface) made into a predetermined diameter is used as a leg iron core, the leg iron core has a small eddy current loss. Can be reduced.

特開2009−206254号公報JP 2009-206254 A 特開2009−105253号公報JP 2009-105253 A

しかし、上記の静止型誘導機器のコイルに高周波成分を多量に含む電圧が印加されると、脚鉄心としてインボリュート磁性鋼板を放射状に積層した鉄心を用いても、脚鉄心自体の発熱が大きく増加し、その脚鉄心の熱により絶縁が破壊する場合があるといった問題があった。   However, when a voltage containing a large amount of high-frequency components is applied to the coil of the static induction device described above, even if an iron core in which involute magnetic steel sheets are radially laminated is used as the leg iron core, the heat generation of the leg iron core itself is greatly increased. There is a problem that the insulation may break down due to the heat of the leg iron core.

発明が解決しようとする課題は、静止型誘導機器における脚鉄心の冷却効率を高め、斯かる問題を解消する点にある。 The problem to be solved by the invention is to improve the cooling efficiency of the leg iron core in the stationary induction device and to solve such a problem.

上記の課題を解決するために、本発明は、インボリュート磁性鋼板を放射状に積層した断面円形状の鉄心に絶縁層を介して絶縁導体線を巻回してなる静止型誘導機器において、前記絶縁層を表裏全面に無溶剤系絶縁接着剤を塗着した絶縁紙とするとともに、少なくとも前記鉄心に最も近接して巻回する前記絶縁導体線を絶縁導体管とし、その絶縁導体管の内部に冷却流体を通流する構成としている。 In order to solve the above-mentioned problems, the present invention provides a static induction device in which an insulated conductor wire is wound around an iron core having a circular cross-section in which involute magnetic steel plates are laminated radially, with an insulating layer interposed therebetween. Insulating paper with a solvent-free insulating adhesive coated on the entire front and back surfaces, and at least the insulated conductor wire wound closest to the iron core as an insulated conductor tube, and cooling fluid inside the insulated conductor tube It is configured to flow.

本発明では、インボリュート磁性鋼板を放射状に積層した断面円形状の鉄心に全面に無溶剤系絶縁接着剤層を形成した絶縁紙を巻回し、その外周面に交流電圧を印加する絶縁導体管を巻回し、その導体管の内部に冷却流体を通流するので、鉄心の熱は熱伝導性の高い無溶剤系絶縁接着剤層を形成した絶縁紙を経て冷却流体を通流する導体管に直ちに伝達され、これにより、鉄心の冷却効率を高めることができ、安心して巻回導体管(コイル)に高周波成分を多量に含む電圧を印加することができる。 In the present invention, an insulating paper having a solvent-free insulating adhesive layer formed on the entire surface is wound around an iron core having a circular cross section in which involute magnetic steel plates are radially laminated, and an insulated conductor tube for applying an AC voltage is wound on the outer peripheral surface thereof. Since the cooling fluid flows through the inside of the conductor tube, the heat of the iron core is immediately transferred to the conductor tube through which the cooling fluid flows through the insulating paper on which a highly heat-conductive solvent-free insulating adhesive layer is formed. Thus, the cooling efficiency of the iron core can be increased, and a voltage containing a large amount of high-frequency components can be applied to the wound conductor tube (coil) with peace of mind.

本発明の実施例に係る静止型誘導機器のコイルの半断面図である。It is a half sectional view of a coil of a static induction device concerning an example of the present invention. 本発明の実施例に係る静止型誘導機器の構成を示す構成図で、(a)は上面図、(b)は側面図、(c)は結線図である。BRIEF DESCRIPTION OF THE DRAWINGS It is a block diagram which shows the structure of the stationary induction | guidance | derivation apparatus based on the Example of this invention, (a) is a top view, (b) is a side view, (c) is a connection diagram. 本発明の他の実施例に係る静止型誘導機器のコイル部の半断面図である。It is a half cross-sectional view of a coil portion of a stationary induction device according to another embodiment of the present invention. 従来の静止型誘導機器のコイル部の半断面図である。It is a half cross-sectional view of a coil portion of a conventional static induction device. 脚鉄心の斜視図である。It is a perspective view of a leg iron core.

本発明の実施例に係る静止型誘導機器(例は単相リアクトル)について、図1および図2を参照して説明する。図1において、11は空隙11aを設けた脚鉄心、12aは1層目の巻回導体管、12bは2層目の巻回導体管、12cは流体入り口フランジ、12dは流体出口フランジ、13はポリイミド系フイルムからなる絶縁紙、14は無溶剤系絶縁接着剤層である。なお、脚鉄心11は、図5に示すように、インボリュート曲線状に湾曲された湾曲部を有する多数の磁性鋼板11aを放射状に積層して円筒状に形成し、これをABCと径方向に三段積層(段数は必要とする脚鉄心の直径に合わせる。)して形成されている。 A stationary induction device (an example is a single-phase reactor) according to an embodiment of the present invention will be described with reference to FIGS. 1 and 2. In FIG. 1, 11 is a leg core provided with a gap 11a, 12a is a first-layer wound conductor tube, 12b is a second-layer wound conductor tube, 12c is a fluid inlet flange, 12d is a fluid outlet flange, 13 is Insulating paper made of polyimide film, 14 is a solventless insulating adhesive layer. In addition, as shown in FIG. 5, the leg iron core 11 is formed in a cylindrical shape by laminating a large number of magnetic steel plates 11a having curved portions curved in an involute curve, and this is formed into a cylindrical shape. It is formed by layering (the number of steps is adjusted to the required diameter of the leg core).

その脚鉄心11に、表裏全面に無溶剤系絶縁接着剤14を塗着した絶縁紙13を巻回し、その上に銅などからなる外周面を絶縁処理した導体(以下、絶縁導体という。)管を巻回(12a)し、その上に絶縁紙13を巻回し、巻回した絶縁紙13の上に折り返した絶縁導体管を巻回(12b)して一脚のリアクトルを作成する。流体入り口フランジ12cおよび流体出口フランジ12dは導体管の両側の開口端に形成され、流体入り口フランジ12cは1層目の巻回導体管12aの巻き始めに位置し、流体出口フランジ12dは2層目の巻回導体管12bの巻き終端に位置する。 A conductor (hereinafter referred to as an insulated conductor) tube in which an insulating paper 13 having a solvent-free insulating adhesive 14 coated on the entire front and back is wound around the leg core 11 and the outer peripheral surface made of copper or the like is insulated on the insulating paper 13. Is wound (12a), the insulating paper 13 is wound thereon, and the insulated conductor tube folded back on the wound insulating paper 13 is wound (12b) to form a monopod reactor. The fluid inlet flange 12c and the fluid outlet flange 12d are formed at the open ends on both sides of the conductor tube, the fluid inlet flange 12c is located at the start of winding of the first-layer wound conductor tube 12a, and the fluid outlet flange 12d is the second layer. It is located at the winding end of the winding conductor tube 12b.

すなわち、最も冷却された流体が脚鉄心11に最も近い巻回導体管12aに流される。なお、導体管の絶縁として無溶剤系絶縁接着剤を塗着した絶縁テープとし、その絶縁テープをポリイミド系フイルムで形成するとより一層冷却効果を高めることができる。また、表裏全面に無溶剤系絶縁接着剤を塗着した絶縁テープを導体管に巻回しておくと、その導体管を脚鉄心に巻回するだけで、脚鉄心と導体管の間に、表裏全面に無溶剤系絶縁接着剤を塗着した絶縁紙からなる絶縁層を形成することができる。 That is, the most cooled fluid is caused to flow through the wound conductor tube 12 a closest to the leg iron core 11. In addition, if the insulating tape is coated with a solventless insulating adhesive as the conductor tube insulation, and the insulating tape is formed of a polyimide film, the cooling effect can be further enhanced. In addition, if an insulating tape with solvent-free insulating adhesive applied to the entire front and back is wound around a conductor tube, the conductor tube is simply wound around the leg iron core, and between the leg iron core and the conductor tube, An insulating layer made of insulating paper coated with a solventless insulating adhesive on the entire surface can be formed.

このように巻回導体管12aと巻回導体管12bを装着した脚鉄心11は、図2(a)(b)に示すように、上下のヨーク鉄心15の両端部の間に配置されて締付固定される。つまり上下のヨーク鉄心15と脚鉄心11とによりロ字型の閉磁路が形成される。そして、図2(c)に示すように片側の脚鉄心11に巻回した巻回導体管の一端は、単相電源の入力U端子に接続され、他端は単相電源の入力V端子に接続される。また、他の片側の脚鉄心11に巻回した巻回導体管も同様に一端は、単相電源の入力U端子に接続され、他端は単相電源の入力V端子に接続され、その導体管の折り返し部は単相電源の入力V端子に接続される。 The leg iron core 11 to which the wound conductor tube 12a and the wound conductor tube 12b are mounted as described above is disposed between both end portions of the upper and lower yoke cores 15 and tightened as shown in FIGS. It is fixed. That is, the upper and lower yoke iron cores 15 and the leg iron cores 11 form a closed-shaped magnetic path. As shown in FIG. 2 (c), one end of the wound conductor tube wound around the leg core 11 on one side is connected to the input U terminal of the single-phase power source, and the other end is connected to the input V terminal of the single-phase power source. Connected. Similarly, one end of the wound conductor tube wound around the other leg iron core 11 is connected to the input U terminal of the single-phase power source, and the other end is connected to the input V terminal of the single-phase power source. The folded portion of the tube is connected to the input V terminal of the single-phase power source.

なお、以上の実施例では、絶縁導体管は断面円形とし、また、脚鉄心の空隙を設けているが、図3に示すように、絶縁導体管は角型銅管16としてもよく、空隙を設けない脚鉄心としてもよい。絶縁導体管を角型銅管16とすれば、電気伝導率および熱伝導率が高くなり、角型銅管16の平らな面を脚鉄心に無溶剤系絶縁接着剤層および絶縁紙を介してであるが密着させることができ、熱伝導面積を大きくとることができ、脚鉄心の冷却効果を一層高めることができる。 In the above embodiment, the insulated conductor tube has a circular cross section and is provided with a gap between the leg iron cores. However, as shown in FIG. It is good also as a leg iron core which does not provide. If the insulated conductor tube is a square copper tube 16, the electrical conductivity and the thermal conductivity are increased, and the flat surface of the square copper tube 16 is placed on the leg iron core via a solvent-free insulating adhesive layer and insulating paper. However, they can be brought into close contact with each other, the heat conduction area can be increased, and the cooling effect of the leg iron core can be further enhanced.

また、インボリュート磁性鋼板を放射状に積層した断面円形状の鉄心に、全面に無溶剤系絶縁接着剤層を形成した絶縁紙を介して鉄心に最も近接して巻回する導体線を導体管とし、その導体管に冷却流体を通流して、該鉄心を冷却する本発明は、単相リアクトルに限らず、三相や多相リアクトルあるいは変圧器に適用できる。たとえば図4に示す変圧器である場合、少なくとも1層目の第1の出力コイル4の1層目のコイルを導体管とし、この導体管に冷却流体を通流すればよい。 In addition, a conductor wire that is wound most closely to the iron core through an insulating paper in which a solvent-free insulating adhesive layer is formed on the entire surface of the iron core having a circular cross-section in which involute magnetic steel plates are laminated radially is used as a conductor tube. The present invention for cooling the iron core by flowing a cooling fluid through the conductor tube is not limited to a single-phase reactor, but can be applied to a three-phase or multi-phase reactor or a transformer. For example, in the case of the transformer shown in FIG. 4, at least the first layer coil of the first output coil 4 of the first layer may be a conductor tube, and the cooling fluid may be passed through the conductor tube.

11 脚鉄心
12a、22b、16 導体管巻線
13 絶縁紙
14 無溶剤系絶縁接着剤層
11 Leg iron cores 12a, 22b, 16 Conductor tube winding 13 Insulating paper 14 Solvent-free insulating adhesive layer

Claims (5)

インボリュート磁性鋼板を放射状に積層した断面円形状の鉄心に絶縁層を介して絶縁導体線を巻回してなる静止型誘導機器において、前記絶縁層を表裏全面に無溶剤系絶縁接着剤を塗着した絶縁紙とするとともに、少なくとも前記鉄心に最も近接して巻回する前記絶縁導体線を絶縁導体管とし、その絶縁導体管の内部に冷却流体を通流してなることを特徴とする静止型誘導機器。 In a static induction device in which an insulated conductor wire is wound around an iron core having a circular cross-section in which involute magnetic steel plates are radially laminated with an insulating layer interposed, a non-solvent insulating adhesive is applied to the entire front and back surfaces of the insulating layer. A stationary induction device characterized in that it is made of insulating paper, and at least the insulated conductor wire wound closest to the iron core is used as an insulated conductor tube, and a cooling fluid is passed through the insulated conductor tube. . 絶縁紙がポリイミド系フイルムであることを特徴とする請求項1に記載の静止型誘導機器。 2. The stationary induction device according to claim 1, wherein the insulating paper is a polyimide film. 絶縁導体管の絶縁処理が無溶剤系絶縁接着剤を塗着した絶縁テープの巻回であることを特徴とする請求項1又は請求項2に記載の静止型誘導機器。 The stationary induction device according to claim 1 or 2, wherein the insulation treatment of the insulated conductor tube is a winding of an insulating tape coated with a solventless insulating adhesive. 絶縁テープがポリイミド系フイルムであることを特徴とする請求項3に記載の静止型誘導機器。 4. The stationary induction device according to claim 3, wherein the insulating tape is a polyimide film. 絶縁導体管が角型絶縁銅管であることを特徴とする請求項1又は請求項2又は請求項3又は請求項4に記載の静止型誘導機器。 5. The stationary induction device according to claim 1, wherein the insulated conductor tube is a rectangular insulated copper tube.
JP2009234386A 2009-10-08 2009-10-08 Static induction equipment Active JP5522658B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2009234386A JP5522658B2 (en) 2009-10-08 2009-10-08 Static induction equipment

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2009234386A JP5522658B2 (en) 2009-10-08 2009-10-08 Static induction equipment

Publications (2)

Publication Number Publication Date
JP2011082387A true JP2011082387A (en) 2011-04-21
JP5522658B2 JP5522658B2 (en) 2014-06-18

Family

ID=44076124

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2009234386A Active JP5522658B2 (en) 2009-10-08 2009-10-08 Static induction equipment

Country Status (1)

Country Link
JP (1) JP5522658B2 (en)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2012256763A (en) * 2011-06-09 2012-12-27 Tokuden Co Ltd Stationary induction apparatus, metal tube induction heating apparatus and involute iron core cooling structure
JP2013004252A (en) * 2011-06-15 2013-01-07 Tokuden Co Ltd Annular metal body induction heating apparatus
JP2013122833A (en) * 2011-12-09 2013-06-20 Tokuden Co Ltd Annular metallic body induction heating apparatus
JP2013122824A (en) * 2011-12-09 2013-06-20 Tokuden Co Ltd Cup-shaped metallic body induction heating apparatus
JP2015122346A (en) * 2013-12-20 2015-07-02 トクデン株式会社 Iron core for scott connection transformer and scott connection transformer
US9622297B2 (en) 2011-12-09 2017-04-11 Tokuden Co., Ltd. Metallic body induction heating apparatus
JP2017079310A (en) * 2015-10-22 2017-04-27 東芝産業機器システム株式会社 Water-cooled iron core
US10510480B2 (en) 2013-12-20 2019-12-17 Tokuden Co., Ltd. Power circuit, iron core for Scott connected transformer, Scott connected transformer, and superheated steam generator
US11605496B2 (en) * 2018-04-09 2023-03-14 Abb Schweiz Ag Foil wound magnetic assemblies with thermally conductive tape and methods of assembling same

Citations (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5469759A (en) * 1977-11-15 1979-06-05 Nissin Electric Co Ltd Core type reactor with gap
JPH0316694U (en) * 1989-07-03 1991-02-19
JPH0492405A (en) * 1990-08-08 1992-03-25 Toshiba Corp Gas insulation transformer
JPH05299266A (en) * 1992-04-16 1993-11-12 Sony Corp Winding structure of copper foil winding transformer and manufacture thereof
JPH06140258A (en) * 1992-10-23 1994-05-20 Toshiba Corp Stationary induction equipment winding
JPH09246064A (en) * 1996-03-01 1997-09-19 Hitachi Ltd Dry transformer winding, its manufacture and dry transformer
JPH09270340A (en) * 1996-03-29 1997-10-14 Nkk Corp Wound core excellent in rigidity
JPH11224821A (en) * 1998-02-05 1999-08-17 Matsushita Electric Ind Co Ltd Electromagnetic coil
JP2001217129A (en) * 2000-02-01 2001-08-10 Matsushita Electric Ind Co Ltd Molded coil
JP2004014773A (en) * 2002-06-06 2004-01-15 Matsushita Electric Ind Co Ltd Ferrite core, magnetic field producing device using the same, and method of manufacturing magnetic field producing device
JP2007525009A (en) * 2003-06-27 2007-08-30 アーベーベー・テヒノロギー・アーゲー Method for manufacturing a transformer winding
JP2008227436A (en) * 2007-03-08 2008-09-25 Okabe Mica Co Ltd Dynamo-electric-machine coil using multilayer reconstituted mica tape
JP2009088422A (en) * 2007-10-03 2009-04-23 Tokuden Co Ltd Three-phase induction electrical machinery
JP2009105253A (en) * 2007-10-24 2009-05-14 Tokuden Co Ltd Circular iron core of stationary type electromagnetic equipment
JP2009206254A (en) * 2008-02-27 2009-09-10 Tokuden Co Ltd Abutment type dry transformer

Patent Citations (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5469759A (en) * 1977-11-15 1979-06-05 Nissin Electric Co Ltd Core type reactor with gap
JPH0316694U (en) * 1989-07-03 1991-02-19
JPH0492405A (en) * 1990-08-08 1992-03-25 Toshiba Corp Gas insulation transformer
JPH05299266A (en) * 1992-04-16 1993-11-12 Sony Corp Winding structure of copper foil winding transformer and manufacture thereof
JPH06140258A (en) * 1992-10-23 1994-05-20 Toshiba Corp Stationary induction equipment winding
JPH09246064A (en) * 1996-03-01 1997-09-19 Hitachi Ltd Dry transformer winding, its manufacture and dry transformer
JPH09270340A (en) * 1996-03-29 1997-10-14 Nkk Corp Wound core excellent in rigidity
JPH11224821A (en) * 1998-02-05 1999-08-17 Matsushita Electric Ind Co Ltd Electromagnetic coil
JP2001217129A (en) * 2000-02-01 2001-08-10 Matsushita Electric Ind Co Ltd Molded coil
JP2004014773A (en) * 2002-06-06 2004-01-15 Matsushita Electric Ind Co Ltd Ferrite core, magnetic field producing device using the same, and method of manufacturing magnetic field producing device
JP2007525009A (en) * 2003-06-27 2007-08-30 アーベーベー・テヒノロギー・アーゲー Method for manufacturing a transformer winding
JP2008227436A (en) * 2007-03-08 2008-09-25 Okabe Mica Co Ltd Dynamo-electric-machine coil using multilayer reconstituted mica tape
JP2009088422A (en) * 2007-10-03 2009-04-23 Tokuden Co Ltd Three-phase induction electrical machinery
JP2009105253A (en) * 2007-10-24 2009-05-14 Tokuden Co Ltd Circular iron core of stationary type electromagnetic equipment
JP2009206254A (en) * 2008-02-27 2009-09-10 Tokuden Co Ltd Abutment type dry transformer

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2012256763A (en) * 2011-06-09 2012-12-27 Tokuden Co Ltd Stationary induction apparatus, metal tube induction heating apparatus and involute iron core cooling structure
JP2013004252A (en) * 2011-06-15 2013-01-07 Tokuden Co Ltd Annular metal body induction heating apparatus
JP2013122833A (en) * 2011-12-09 2013-06-20 Tokuden Co Ltd Annular metallic body induction heating apparatus
JP2013122824A (en) * 2011-12-09 2013-06-20 Tokuden Co Ltd Cup-shaped metallic body induction heating apparatus
US9622297B2 (en) 2011-12-09 2017-04-11 Tokuden Co., Ltd. Metallic body induction heating apparatus
JP2015122346A (en) * 2013-12-20 2015-07-02 トクデン株式会社 Iron core for scott connection transformer and scott connection transformer
US10510480B2 (en) 2013-12-20 2019-12-17 Tokuden Co., Ltd. Power circuit, iron core for Scott connected transformer, Scott connected transformer, and superheated steam generator
US10650962B2 (en) 2013-12-20 2020-05-12 Tokuden Co., Ltd. Power circuit, iron core for Scott connected transformer, Scott connected transformer, and superheated steam generator
US10840011B2 (en) 2013-12-20 2020-11-17 Tokuden Co., Ltd. Power circuit, iron core for scott connected transformer, scott connected transformer, and superheated steam generator
US10978243B2 (en) 2013-12-20 2021-04-13 Tokuden Co., Ltd. Power circuit, iron core for Scott connected transformer, Scott connected transformer, and superheated steam generator
JP2017079310A (en) * 2015-10-22 2017-04-27 東芝産業機器システム株式会社 Water-cooled iron core
US11605496B2 (en) * 2018-04-09 2023-03-14 Abb Schweiz Ag Foil wound magnetic assemblies with thermally conductive tape and methods of assembling same

Also Published As

Publication number Publication date
JP5522658B2 (en) 2014-06-18

Similar Documents

Publication Publication Date Title
JP5522658B2 (en) Static induction equipment
US8928441B2 (en) Liquid cooled magnetic component with indirect cooling for high frequency and high power applications
US8614617B2 (en) Reactor
JP4942605B2 (en) Three-phase induction machine
JP2011080721A (en) Fluid heating device
JP2010071624A (en) Fluid heating device
CN107369534B (en) Three-phase three-dimensional iron core transformer that stacks
CN111354543A (en) Magnetic assembly and power module
JP2008210972A (en) Transformer for high-frequency induction heating
FI121863B (en) Chokes for an electronic device
EP2187408B1 (en) Iron core reactor
WO2003045113A1 (en) Device and method of liquid heating by electromagnetic induction and short-circuit using three-phase industrial frequency power
JP2012256763A (en) Stationary induction apparatus, metal tube induction heating apparatus and involute iron core cooling structure
FI123733B (en) Liquid-cooled inductive component and method of making an inductive component
JP2009520348A (en) Interleaved planar transformer primary and secondary windings
KR101925216B1 (en) Flat laminating type reactor apparatus, and manufacturing method thereof
WO2013054473A1 (en) Wound element coil and wound element
JP7199606B1 (en) Static induction device
US20130187738A1 (en) Electrical apparatus having a thermally conductive bobbin
JP2007294536A (en) Water-cooled transformer and water-cooled coil thereof
TW201903793A (en) Static induction appliance
KR200486562Y1 (en) Oil immersed transformer having magnetic shield
JP3274241B2 (en) Cooling structure for static induction equipment windings
KR20100026410A (en) A high frequency cable for a high frequency induction heating device
KR20100026408A (en) A high frequency induction heating device

Legal Events

Date Code Title Description
A621 Written request for application examination

Free format text: JAPANESE INTERMEDIATE CODE: A621

Effective date: 20120427

A977 Report on retrieval

Free format text: JAPANESE INTERMEDIATE CODE: A971007

Effective date: 20130118

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20130204

A02 Decision of refusal

Free format text: JAPANESE INTERMEDIATE CODE: A02

Effective date: 20130918

A521 Request for written amendment filed

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20131213

A911 Transfer to examiner for re-examination before appeal (zenchi)

Free format text: JAPANESE INTERMEDIATE CODE: A911

Effective date: 20131225

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20140228

A521 Request for written amendment filed

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20140307

TRDD Decision of grant or rejection written
A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

Effective date: 20140402

A61 First payment of annual fees (during grant procedure)

Free format text: JAPANESE INTERMEDIATE CODE: A61

Effective date: 20140402

R150 Certificate of patent or registration of utility model

Ref document number: 5522658

Country of ref document: JP

Free format text: JAPANESE INTERMEDIATE CODE: R150

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250