JP2020194812A - Three-dimensional iron core transformer - Google Patents

Three-dimensional iron core transformer Download PDF

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JP2020194812A
JP2020194812A JP2019097700A JP2019097700A JP2020194812A JP 2020194812 A JP2020194812 A JP 2020194812A JP 2019097700 A JP2019097700 A JP 2019097700A JP 2019097700 A JP2019097700 A JP 2019097700A JP 2020194812 A JP2020194812 A JP 2020194812A
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iron core
core transformer
dimensional iron
dimensional
mounting bracket
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JP7165623B2 (en
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邦彦 安東
Kunihiko Ando
邦彦 安東
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Hitachi Industrial Equipment Systems Co Ltd
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Hitachi Industrial Equipment Systems Co Ltd
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    • 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
    • H01F27/08—Cooling; Ventilating
    • H01F27/085—Cooling by ambient air
    • 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
    • H01F27/06—Mounting, supporting or suspending transformers, reactors or choke coils not being of the signal type
    • 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
    • H01F27/2876—Cooling

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Transformer Cooling (AREA)

Abstract

To enhance the cooling effect of a three-dimensional iron core transformer with a simple structure.SOLUTION: A three-dimensional iron core transformer includes a three-dimensional iron core in which three single-phase iron cores with a rectangular frame shape are arranged in a triangular shape when viewed from above, and that has three iron core legs that are arranged on each of the iron core legs, and three coils arranged on each of the iron core legs, and includes a ventilation path formed by adjoining the three coils, a lower mounting bracket attached to the lower side of the three-dimensional iron core, and a cooling fan that sends cooling air, and the cooling air from the cooling fan is sent to the ventilation path through the opening provided in the lower mounting bracket.SELECTED DRAWING: Figure 3

Description

本発明は、立体鉄心変圧器の冷却構造に関する。 The present invention relates to a cooling structure of a three-dimensional iron core transformer.

特許文献１には、電磁鋼板を積層してなる略同一の円筒形状の３個の単位鉄心を、同一の軸Ｘを中心として対称に配置すると共に、各単位鉄心が、互いに他の２つの単位鉄心と一部が接するように配置して構成した変圧器鉄心が、開示されている(要約参照)。 In Patent Document 1, three unit iron cores having substantially the same cylindrical shape formed by laminating electromagnetic steel sheets are arranged symmetrically about the same axis X, and the unit iron cores are each other two units. A transformer core configured to be partially in contact with the core is disclosed (see summary).

特開２００５−３３３０５７号公報Japanese Unexamined Patent Publication No. 2005-333057

特許文献１記載の変圧器によれば、各単位鉄心に発生する磁束波形の歪がより小さくなることで、従来の三相３脚変圧器よりも鉄損が減少するようになり、変圧器の効率を向上させることができる。しかし、円筒形状の３個の単位鉄心が三角形の頂点位置に配置され、３個全てのコイルが隣り合う配置となっているため、熱源であるコイルが隣接し合う平面中央部に熱が籠もりやすいが、この点は考慮されていない。 According to the transformer described in Patent Document 1, the distortion of the magnetic flux waveform generated in each unit iron core becomes smaller, so that the iron loss is reduced as compared with the conventional three-phase three-legged transformer, and the transformer Efficiency can be improved. However, since the three cylindrical unit iron cores are arranged at the apex positions of the triangle and all three coils are arranged adjacent to each other, heat is trapped in the central part of the plane where the coils that are the heat source are adjacent to each other. It's easy, but this isn't taken into account.

本発明は、簡単な構造で、立体鉄心変圧器の冷却効果を高めることを目的とする。 An object of the present invention is to enhance the cooling effect of a three-dimensional iron core transformer with a simple structure.

上記課題を解決するための、本発明の「立体鉄心変圧器」の一例を挙げるならば、
矩形枠形状の単相鉄心３個を上面から見た際に三角形状に配置し、２個の鉄心が合わさった３つの鉄心脚部を有する立体鉄心と、前記鉄心脚部のそれぞれに配置した３つのコイルを備える立体鉄心変圧器であって、前記３つのコイルが隣り合って形成される通風路と、前記立体鉄心の下側に取り付けた下部取付金具と、冷却風を送る冷却ファンと、を備え、前記下部取付金具に設けた開口部を通して、前記冷却ファンからの冷却風を前記通風路へ送ることを特徴とする。 To give an example of the "three-dimensional iron core transformer" of the present invention for solving the above problems,
Three single-phase iron cores in the shape of a rectangular frame are arranged in a triangular shape when viewed from above, and a three-dimensional iron core having three iron core legs in which two iron cores are combined and three arranged in each of the iron core legs 3 A three-dimensional iron core transformer including one coil, the ventilation path formed by adjoining the three coils, a lower mounting bracket attached to the lower side of the three-dimensional iron core, and a cooling fan for sending cooling air. It is characterized in that the cooling air from the cooling fan is sent to the ventilation path through the opening provided in the lower mounting bracket.

本発明によれば、冷却ファンにより、熱源が集中する平面中央部に対して、コイルの下方から、コイル間で構成される通風路を通り、コイルの上方へ送風することで、簡単な構造で、立体鉄心変圧器の冷却効果を高めることが可能となる。 According to the present invention, a cooling fan blows air from below the coil to the center of the plane where the heat source is concentrated, through a ventilation path formed between the coils, and above the coil, thereby forming a simple structure. , It is possible to enhance the cooling effect of the three-dimensional iron core transformer.

上記した以外の課題、構成および効果は、以下の実施形態の説明により明らかにされる。 Issues, configurations and effects other than those described above will be clarified by the description of the following embodiments.

本発明の立体鉄心変圧器の一例を示す斜視図である。It is a perspective view which shows an example of the three-dimensional iron core transformer of this invention. 図１の立体鉄心変圧器の鉄心を示す斜視図である。It is a perspective view which shows the iron core of the three-dimensional iron core transformer of FIG. 実施例１の立体鉄心変圧器を示す正面図である。It is a front view which shows the three-dimensional iron core transformer of Example 1. FIG. 実施例１の立体鉄心変圧器を示す下面図である。It is a bottom view which shows the three-dimensional iron core transformer of Example 1. FIG. 実施例２の立体鉄心変圧器を示す斜視図である。It is a perspective view which shows the three-dimensional iron core transformer of Example 2. 図５の変圧器の、Ａ平面の断面図である。It is sectional drawing of the A plane of the transformer of FIG. 実施例３の立体鉄心変圧器の一部を示す斜視図である。It is a perspective view which shows a part of the three-dimensional iron core transformer of Example 3. 実施例４の立体鉄心変圧器の正面図である。It is a front view of the three-dimensional iron core transformer of Example 4.

以下、本発明の実施例について、図面を用いて説明する。なお、実施例を説明するための各図において、同一の構成要素にはなるべく同一の名称、符号を付して、その繰り返しの説明を省略する。 Hereinafter, examples of the present invention will be described with reference to the drawings. In addition, in each figure for demonstrating an embodiment, the same constituent elements are given the same name and reference numeral as much as possible, and the repeated description thereof will be omitted.

図１に立体鉄心変圧器の一例の斜視図を、図２に、図１の立体鉄心変圧器の立体鉄心の斜視図を示す。 FIG. 1 shows a perspective view of an example of a three-dimensional core transformer, and FIG. 2 shows a perspective view of the three-dimensional iron core of the three-dimensional core transformer of FIG.

立体鉄心変圧器１は、立体鉄心１１、コイル１２、下部取付金具１４、上部取付金具１３により構成されている。 The three-dimensional iron core transformer 1 is composed of a three-dimensional iron core 11, a coil 12, a lower mounting bracket 14, and an upper mounting bracket 13.

立体鉄心１１は、矩形枠形状の同一磁路長の単相鉄心３個により構成され、鉄心３個を上面から見た際に三角形状に配置し、２個の鉄心が合わさった鉄心脚部の断面形状は略円形である。３つの鉄心脚部にはそれぞれ円筒状のコイル１２が配置されている。２個の鉄心が合わさった鉄心脚部の断面形状は略円形であることから、コイルは円筒状となる。立体鉄心１１の下側には下部取付金具１４が取り付けられ、上側には上部取付金具１３が取り付けられている。コイル１２は、下部取付金具１４および上部取付金具１３との間に配置したコイル支え１５により上下方向に支えられている。また、上部取付金具１３と下部取付金具１４とは取付金具連結スタッド１６により連結されている。 The three-dimensional iron core 11 is composed of three single-phase iron cores having a rectangular frame shape and the same magnetic path length, and the three iron cores are arranged in a triangular shape when viewed from above, and the iron core legs of the two iron cores are combined. The cross-sectional shape is substantially circular. Cylindrical coils 12 are arranged on each of the three iron core legs. Since the cross-sectional shape of the iron core leg portion in which the two iron cores are combined is substantially circular, the coil has a cylindrical shape. The lower mounting bracket 14 is attached to the lower side of the three-dimensional iron core 11, and the upper mounting bracket 13 is attached to the upper side. The coil 12 is supported in the vertical direction by a coil support 15 arranged between the lower mounting bracket 14 and the upper mounting bracket 13. Further, the upper mounting bracket 13 and the lower mounting bracket 14 are connected by a mounting bracket connecting stud 16.

図３に実施例１の立体鉄心変圧器の正面図を、図４に下面図を示す。 FIG. 3 shows a front view of the three-dimensional iron core transformer of the first embodiment, and FIG. 4 shows a bottom view.

下部取付金具１４は、平面中央の位置に冷却ファン２１を配置するスペースを有し、コイル１２の下方から、コイル間で構成される通風路１７を通り、コイル１２の上方へ冷却風を送るための円形状の開口部１４１を有する。変圧器鉄心１１の下方であって、下部取付金具１４の開口部１４１には、冷却ファン２１が取り付けられている。なお、使用場所への変圧器の設置後においても冷却ファン２１の取替作業が容易となるよう、下部取付金具１４には冷却ファン２１の取り出しスペースを確保した構造とする。そして、冷却ファン２１は、下部取付金具１４へ着脱可能に取り付けられている。変圧器の動作時に、冷却ファン２１を回転させることで、コイル１２の下方から、コイル間で構成される通風路１７を通り、コイル１２の上方へ冷却風３１を送風する。 The lower mounting bracket 14 has a space for arranging the cooling fan 21 at the center of the plane, and is for sending cooling air from below the coil 12 through the ventilation passage 17 formed between the coils and above the coil 12. Has a circular opening 141. A cooling fan 21 is attached to the opening 141 of the lower mounting bracket 14 below the transformer core 11. The lower mounting bracket 14 has a structure in which a space for taking out the cooling fan 21 is secured so that the cooling fan 21 can be easily replaced even after the transformer is installed at the place of use. The cooling fan 21 is detachably attached to the lower mounting bracket 14. By rotating the cooling fan 21 during the operation of the transformer, the cooling air 31 is blown from below the coil 12 through the ventilation passage 17 formed between the coils and above the coil 12.

立体鉄心変圧器においては、各脚のコイルが三角形の頂点位置に配置され、３個全てのコイルが隣り合う配置となっている。そのため、３脚の鉄心およびコイルの平面中央部に熱が籠もりやすい構造となっている。本実施例によれば、コイルの下方且つ平面中央に配置した冷却ファンにより、熱源が集中する平面中央部に対して、コイルの下方から、コイル間で構成される通風路を通り、コイルの上方へ冷却風を送風することで、簡単な構造で冷却効果を高めることができる。また、冷却ファンを下部取付金具へ着脱可能に取り付けているので、冷却ファンの点検、交換が容易である。 In the three-dimensional iron core transformer, the coils of each leg are arranged at the apex positions of the triangles, and all three coils are arranged adjacent to each other. Therefore, the structure is such that heat tends to be trapped in the center of the plane of the iron core of the tripod and the coil. According to this embodiment, the cooling fan arranged below the coil and in the center of the plane passes through the ventilation path formed between the coils from below the coil to the center of the plane where the heat source is concentrated, and above the coil. By blowing cooling air to, the cooling effect can be enhanced with a simple structure. In addition, since the cooling fan is detachably attached to the lower mounting bracket, it is easy to inspect and replace the cooling fan.

図５に、本発明の実施例２の立体鉄心変圧器の斜視図を、図６に、図５のＡ平面の断面斜視図を示す。 FIG. 5 shows a perspective view of the three-dimensional iron core transformer according to the second embodiment of the present invention, and FIG. 6 shows a cross-sectional perspective view of the A plane of FIG.

実施例２の立体鉄心変圧器は、冷却ファン２１を下部取付金具１４の下部側方に配置し、冷却ファン２１から下部取付金具１４の開口部１４１へ向けて冷却風を導く導風ダクト４１を設けたものである。冷却ファン２１からの冷却風を、導風ダクト４１により下部取付金具１４の開口部１４１へ導く。そして、実施例１と同様に、コイル１２の下方から、コイル間で構成される通風路１７を通り、コイル１２の上方へ冷却風３１を送風する。 In the three-dimensional iron core transformer of the second embodiment, the cooling fan 21 is arranged on the lower side of the lower mounting bracket 14, and the air duct 41 for guiding the cooling air from the cooling fan 21 toward the opening 141 of the lower mounting bracket 14 is provided. It is provided. The cooling air from the cooling fan 21 is guided to the opening 141 of the lower mounting bracket 14 by the air duct 41. Then, as in the first embodiment, the cooling air 31 is blown from below the coil 12 through the ventilation passage 17 formed between the coils and above the coil 12.

本実施例によれば、実施例１の効果に加えて、冷却ファン２１を下部取付金具１４の下部側方に配置したので、冷却ファン２１の点検、交換が容易となる。 According to this embodiment, in addition to the effect of the first embodiment, since the cooling fan 21 is arranged on the lower side of the lower mounting bracket 14, the cooling fan 21 can be easily inspected and replaced.

図７に、本発明の実施例３の立体鉄心変圧器の一部を示す。図７（ａ）は立体鉄心変圧器の下部取付金具に立体鉄心を取り付けた斜視図、図７（ｂ）は下部取付金具と密封部材の斜視図である。 FIG. 7 shows a part of the three-dimensional iron core transformer according to the third embodiment of the present invention. FIG. 7A is a perspective view of the three-dimensional iron core attached to the lower mounting bracket of the three-dimensional iron core transformer, and FIG. 7B is a perspective view of the lower mounting bracket and the sealing member.

図２に示すように、立体鉄心１１は、単相鉄心を組み合わせた角部に隙間５０があり、冷却ファンから冷却風を送風した際に、この隙間５０から冷却風が漏れてしまう。本実施例では、図７に示すように、角部の隙間５０を塞ぐように、立体鉄心１１のそれぞれの角部５０に密封部材である風漏れ防止板５１を取り付ける。風漏れ防止板５１は下部取付金具１４に一体化されているのが好ましい。 As shown in FIG. 2, the three-dimensional iron core 11 has a gap 50 at a corner where a single-phase iron core is combined, and when the cooling air is blown from the cooling fan, the cooling air leaks from the gap 50. In this embodiment, as shown in FIG. 7, a wind leakage prevention plate 51, which is a sealing member, is attached to each corner portion 50 of the three-dimensional iron core 11 so as to close the gap 50 at the corner portion. The wind leakage prevention plate 51 is preferably integrated with the lower mounting bracket 14.

本実施例によれば、冷却ファンから送風した空気が立体鉄心の隙間から漏れることなくコイル間の通風路に送風されるため、冷却効果を高めることができる。 According to this embodiment, the air blown from the cooling fan is blown to the ventilation path between the coils without leaking from the gap between the three-dimensional iron cores, so that the cooling effect can be enhanced.

図８に、本発明の実施例４の立体鉄心変圧器を示す。図８は立体鉄心変圧器の正面図である。 FIG. 8 shows a three-dimensional iron core transformer according to a fourth embodiment of the present invention. FIG. 8 is a front view of the three-dimensional iron core transformer.

本実施例では、実施例１の内容に加えて、冷却ファン電源用のコイル側配線１２１を有し、冷却ファンの電源リード線２２の接続用の端子台２３を冷却ファン周辺部の下部取付金具１４に有する。そして、端子台２３により冷却ファン２１の電源リード線２２の接続を行う。 In this embodiment, in addition to the contents of the first embodiment, the coil side wiring 121 for the cooling fan power supply is provided, and the terminal block 23 for connecting the power supply lead wire 22 of the cooling fan is attached to the lower mounting bracket around the cooling fan. It has in 14. Then, the power lead wire 22 of the cooling fan 21 is connected by the terminal block 23.

本実施例によれば、冷却ファンの取り換え時での配線作業性を向上することができる。 According to this embodiment, the wiring workability at the time of replacing the cooling fan can be improved.

１…立体鉄心変圧器
１１…鉄心(立体鉄心)
１２…コイル
１２１…冷却ファン電源用コイル側配線
１３…上部取付金具
１４…下部取付金具
１４１…下部取付金具開口部
１５…コイル支え
１６…取付金具連結スタッド
１７…通風路
２１…冷却ファン
２２…冷却ファン電源リード線
２３…端子台
３１…冷却風
４１…導風ダクト
５０…鉄心の隙間
５１…風漏れ防止版 1 ... Three-dimensional iron core transformer 11 ... Iron core (three-dimensional iron core)
12 ... Coil 121 ... Coil side wiring for cooling fan power supply 13 ... Upper mounting bracket 14 ... Lower mounting bracket 141 ... Lower mounting bracket opening 15 ... Coil support 16 ... Mounting bracket connecting stud 17 ... Ventilation passage 21 ... Cooling fan 22 ... Cooling Fan power lead wire 23 ... Terminal block 31 ... Cooling air 41 ... Air duct 50 ... Iron core gap 51 ... Wind leakage prevention version

Claims (10)

矩形枠形状の単相鉄心３個を上面から見た際に三角形状に配置し、２個の鉄心が合わさった３つの鉄心脚部を有する立体鉄心と、前記鉄心脚部のそれぞれに配置した３つのコイルを備える立体鉄心変圧器であって、
前記３つのコイルが隣り合って形成される通風路と、
前記立体鉄心の下側に取り付けた下部取付金具と、
冷却風を送る冷却ファンと、
を備え、
前記下部取付金具に設けた開口部を通して、前記冷却ファンからの冷却風を前記通風路へ送ることを特徴とする立体鉄心変圧器。 Three single-phase iron cores having a rectangular frame shape are arranged in a triangular shape when viewed from above, and a three-dimensional iron core having three iron core legs in which two iron cores are combined and three arranged in each of the iron core legs 3 A three-dimensional iron core transformer with two coils
A ventilation path formed by adjoining the three coils and
The lower mounting bracket attached to the lower side of the three-dimensional iron core and
With a cooling fan that sends cooling air,
With
A three-dimensional iron core transformer characterized in that cooling air from the cooling fan is sent to the ventilation passage through an opening provided in the lower mounting bracket. 請求項１に記載の立体鉄心変圧器において、
前記冷却ファンは、前記立体鉄心の下方であって且つ平面中央に配置したことを特徴とする立体鉄心変圧器。 In the three-dimensional iron core transformer according to claim 1,
The cooling fan is a three-dimensional core transformer characterized in that it is arranged below the three-dimensional iron core and in the center of a plane. 請求項２に記載の立体鉄心変圧器において、
平面中央部に対して、前記コイルの下方から、コイル間で構成される前記通風路を通り、前記コイルの上方へ冷却風が流れることで、冷却効果を高めることを特徴とする立体鉄心変圧器。 In the three-dimensional iron core transformer according to claim 2,
A three-dimensional iron core transformer characterized in that the cooling effect is enhanced by flowing cooling air from below the coil to the center of the plane through the ventilation path formed between the coils and above the coil. .. 請求項３に記載の立体鉄心変圧器において、
前記下部取付金具は、平面中央の位置に冷却ファンを配置するスペースを有し、当該スペースに前記冷却ファンを配置したことを特徴とする立体鉄心変圧器。 In the three-dimensional iron core transformer according to claim 3,
The lower mounting bracket has a space for arranging a cooling fan at a position in the center of a plane, and the three-dimensional iron core transformer is characterized in that the cooling fan is arranged in the space. 請求項２に記載の立体鉄心変圧器において、
前記冷却ファンを、前記下部取付金具に着脱可能に取り付けたことを特徴とする立体鉄心変圧器。 In the three-dimensional iron core transformer according to claim 2,
A three-dimensional iron core transformer characterized in that the cooling fan is detachably attached to the lower mounting bracket. 請求項１に記載の立体鉄心変圧器において、
前記下部取付金具と前記コイルとの間にコイル支えを備えることを特徴とする立体鉄心変圧器。 In the three-dimensional iron core transformer according to claim 1,
A three-dimensional iron core transformer characterized in that a coil support is provided between the lower mounting bracket and the coil. 請求項１に記載の立体鉄心変圧器において、
前記冷却ファンから前記下部取付金具に設けた開口部に冷却風を送る導風ダクトを備え、
前記冷却ファンは、前記下部取付金具の側方であって、冷却風を前記導風ダクトへ送る位置に設けたことを特徴とする立体鉄心変圧器。 In the three-dimensional iron core transformer according to claim 1,
A ventilation duct for sending cooling air from the cooling fan to the opening provided in the lower mounting bracket is provided.
The cooling fan is a three-dimensional iron core transformer provided on the side of the lower mounting bracket at a position where cooling air is sent to the air guide duct. 請求項１に記載の立体鉄心変圧器において、
前記立体鉄心の角部の隙間を密封する風漏れ防止板を備えることを特徴とする立体鉄心変圧器。 In the three-dimensional iron core transformer according to claim 1,
A three-dimensional iron core transformer comprising a wind leakage prevention plate that seals a gap at a corner of the three-dimensional iron core. 請求項８に記載の立体鉄心変圧器において、
前記風漏れ防止板は、前記下部取付金具と一体化したことを特徴とする立体鉄心変圧器。 In the three-dimensional iron core transformer according to claim 8,
The three-dimensional iron core transformer characterized in that the wind leakage prevention plate is integrated with the lower mounting bracket. 請求項１に記載の立体鉄心変圧器において、
冷却ファンの電源リード線の配線用の端子台を、前記下部取付金具の冷却ファン周辺部に配置したことを特徴とする立体鉄心変圧器。 In the three-dimensional iron core transformer according to claim 1,
A three-dimensional iron core transformer characterized in that a terminal block for wiring the power lead wire of the cooling fan is arranged around the cooling fan of the lower mounting bracket.
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Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS53110416U (en) * 1977-02-14 1978-09-04
JPS6013717U (en) * 1983-07-06 1985-01-30 株式会社東芝 dry electrical equipment
JPS6081629U (en) * 1983-11-10 1985-06-06 株式会社ダイヘン 3 phase reactor
JPH0757940A (en) * 1993-08-18 1995-03-03 Toshiba Corp Air-cooled dry transformer
JP2003522407A (en) * 2000-02-06 2003-07-22 ヘグルンド、レンナルト Transformer core
JP2005347481A (en) * 2004-06-02 2005-12-15 J-Power Systems Corp Reactor for power and reactor electric wire
US20130300526A1 (en) * 2011-02-16 2013-11-14 Abb Technology Ag Cooling system for dry transformers
WO2014073252A1 (en) * 2012-11-08 2014-05-15 株式会社日立産機システム Reactor device
US20140354386A1 (en) * 2012-01-17 2014-12-04 U.T.T. Unique Transformer Technolgies Ltd Three-phase magnetic cores for magnetic induction devices and methods for manufacturing them
JP2018037471A (en) * 2016-08-30 2018-03-08 株式会社明電舎 Air-cooled reactor/transformer panel

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN202087401U (en) * 2011-05-16 2011-12-28 山东华特磁电科技股份有限公司 Self-cooling electric magnetic iron remover
KR20140116125A (en) * 2011-12-19 2014-10-01 에이비비 테크놀로지 아게 Apparatus and method for cooling a transformer having a non-linear core
CN204632510U (en) * 2015-05-20 2015-09-09 特变电工股份有限公司 Dry type stereoscopic triangular coiled-core transformer and cooling structure thereof
CN106710828B (en) * 2017-01-06 2018-08-17 江苏源通电气有限公司 A kind of three-dimensional winding iron core resin insulating dry type transformer
JP6383034B1 (en) * 2017-03-13 2018-08-29 ファナック株式会社 Reactor

Patent Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS53110416U (en) * 1977-02-14 1978-09-04
JPS6013717U (en) * 1983-07-06 1985-01-30 株式会社東芝 dry electrical equipment
JPS6081629U (en) * 1983-11-10 1985-06-06 株式会社ダイヘン 3 phase reactor
JPH0757940A (en) * 1993-08-18 1995-03-03 Toshiba Corp Air-cooled dry transformer
JP2003522407A (en) * 2000-02-06 2003-07-22 ヘグルンド、レンナルト Transformer core
JP2005347481A (en) * 2004-06-02 2005-12-15 J-Power Systems Corp Reactor for power and reactor electric wire
US20130300526A1 (en) * 2011-02-16 2013-11-14 Abb Technology Ag Cooling system for dry transformers
US20140354386A1 (en) * 2012-01-17 2014-12-04 U.T.T. Unique Transformer Technolgies Ltd Three-phase magnetic cores for magnetic induction devices and methods for manufacturing them
JP2015503854A (en) * 2012-01-17 2015-02-02 ユー．ティー．ティー． ユニーク トランスフォーマー テクノロジーズ リミテッドＵ．Ｔ．Ｔ． Ｕｎｉｑｕｅ Ｔｒａｎｓｆｏｒｍｅｒ Ｔｅｃｈｎｏｌｏｇｉｅｓ Ｌｔｄ Three-phase magnetic core for magnetic induction device and method for manufacturing the same
WO2014073252A1 (en) * 2012-11-08 2014-05-15 株式会社日立産機システム Reactor device
US20150179330A1 (en) * 2012-11-08 2015-06-25 Hitachi Industrial Equipment Systems Co., Ltd. Reactor Device
JP2018037471A (en) * 2016-08-30 2018-03-08 株式会社明電舎 Air-cooled reactor/transformer panel

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