JPS61201407A - Air-core reactor - Google Patents
Air-core reactorInfo
- Publication number
- JPS61201407A JPS61201407A JP60043182A JP4318285A JPS61201407A JP S61201407 A JPS61201407 A JP S61201407A JP 60043182 A JP60043182 A JP 60043182A JP 4318285 A JP4318285 A JP 4318285A JP S61201407 A JPS61201407 A JP S61201407A
- Authority
- JP
- Japan
- Prior art keywords
- air
- core
- coils
- reactance
- resistance
- 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
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F37/00—Fixed inductances not covered by group H01F17/00
- H01F37/005—Fixed inductances not covered by group H01F17/00 without magnetic core
Abstract
Description
【発明の詳細な説明】 （産業上の利用分野） この発明は空心リアクトル装置に関する。[Detailed description of the invention] (Industrial application field) This invention relates to an air core reactor device.
（従来の技術）
たとえば中性点りアクドルなどでは、そのリアクタンス
の１５％程度の抵抗を直列に接続することが要求される
。この抵抗をリアクトルの空心コイルを構成する電線の
抵抗器で形成することが考えられる。しかし通常の電線
たとえばアルミニウム線を用いた空心リアクトルでは、
リアクタンスの３％程度の抵抗器しか得られず、１５％
程度の抵抗器を発生させることは極めて困難である。(Prior Art) For example, in the case of a neutral point accelerator, it is required to connect a resistor of about 15% of the reactance in series. It is conceivable to form this resistance with a resistor of the electric wire that constitutes the air-core coil of the reactor. However, in air-core reactors using ordinary electric wires, such as aluminum wires,
A resistor with only about 3% of reactance can be obtained, and 15%
It is extremely difficult to generate a resistor of this magnitude.
これを改善するために空心コイルとして、特殊な高抵抗
線を用いて構成することが考えられるが。In order to improve this problem, it may be possible to construct the air-core coil using a special high-resistance wire.
この種抵抗線は極めて固く、巻線のための加工には不向
きである。またリアクトルの容量によっては空心コイル
の寸法が大きくなることがあるが。This type of resistance wire is extremely hard and unsuitable for processing into windings. Also, depending on the capacity of the reactor, the dimensions of the air-core coil may become larger.
そのような場合は固有抵抗の異なる電線を別途製作して
空心コイルを製作しなければならない不便がある。In such a case, there is an inconvenience that an air-core coil must be manufactured by separately manufacturing electric wires having different specific resistances.
これらの理由から通常では空心リアクトルとは別個に抵
抗器を製作し、これを空心リアクトルに対して別に設置
して直列に接続するようにしている。しかしこのような
別置型とすれば、設置スペースが広くなるといった欠点
は避けられない。For these reasons, normally a resistor is manufactured separately from the air-core reactor, and this resistor is installed separately from the air-core reactor and connected in series. However, such a separately installed type inevitably has the disadvantage that it requires a large installation space.
（発明が解決しようとする問題点）
この発明は通常の電線を使用して空心コイルを形成して
も、リアクタンスに対する比が従来よりも十分大きい抵
抗値を呈するようにすることを目的とする。(Problems to be Solved by the Invention) An object of the present invention is to provide an air-core coil that exhibits a resistance value that is sufficiently larger in ratio to reactance than the conventional one, even when an air-core coil is formed using ordinary electric wires.
（問題点を解決するための手段）
この発明は、互いに巻回方向が逆とされ、ともに同軸と
された複数の空心コイルによって空心すアクドルを構成
するとともに、前記各空心コイルを互いに並列に接続し
て構成したことを特徴とする。(Means for Solving the Problems) The present invention constitutes an air-core axle by a plurality of air-core coils whose winding directions are opposite to each other and are coaxial, and the air-core coils are connected in parallel to each other. It is characterized by being configured as follows.
（作用）
各空心コイルをその巻回方向を逆にして同軸に配置すれ
ば、その合成リアクタンスは個々の空心リアクトルのり
アクタンスよりも小さくなる。また各空心コイルは並列
に接続されるので、その合成抵抗は個々の空心コイルの
抵抗値よりも小さくなる。しかし抵抗値は空心コイルが
２個の場合は半分程度となるにすぎないが、前記合成リ
アクタンスは、各空心コイルを密に結合するなどしてそ
の相互結合係数を１に十分近付けるようにすれば、１個
の空心コイルのりアクタンスの１０％程度にまで小さく
なる。したがってリアクタンスに対する抵抗の比は大き
くなり、具体的には所望の１５％程度の抵抗値のものも
得られるようになる。(Function) If each air-core coil is arranged coaxially with its winding direction reversed, its combined reactance will be smaller than the reactance of each individual air-core reactor. Further, since each air-core coil is connected in parallel, the combined resistance thereof is smaller than the resistance value of each individual air-core coil. However, the resistance value is only about half when there are two air-core coils, but the composite reactance can be reduced by closely coupling each air-core coil to make the mutual coupling coefficient sufficiently close to 1. , it becomes as small as about 10% of the actance of one air-core coil. Therefore, the ratio of resistance to reactance becomes large, and specifically, a desired resistance value of about 15% can be obtained.
（実施例）
この発明の実施例を図によって説明する。１゜２はたと
えば銅、アルミニウムなどの電線からなる空心コイルで
ある。そしてこの発明にしたがい、それぞれの巻回方向
が逆とされ、かつ同軸に配置される。そして各空心コイ
ル１，２は互いに並列に接続されてあり、一方の端子３
は中性点側端子として使用され、他方の端子４はアース
側端子として使用される。(Example) An example of the present invention will be described with reference to the drawings. 1.degree.2 is an air-core coil made of electric wire, such as copper or aluminum. According to the invention, the respective winding directions are reversed and they are arranged coaxially. The air core coils 1 and 2 are connected in parallel to each other, and one terminal 3
is used as a neutral point side terminal, and the other terminal 4 is used as a ground side terminal.
各空心コイル１，２は絶縁油、ＳＦＧガスなどの＃！！
縁媒体を満たしたタンク５に収納される。なお図では理
解しやすいようにするため、各空心コイルの高さを変え
て示しているが、これらはすべて同じであってもよいこ
ともちろんである。Each air core coil 1, 2 is filled with #! insulation oil, SFG gas, etc. !
It is stored in a tank 5 filled with edge medium. Note that although the air-core coils are shown at different heights in the figure for ease of understanding, it goes without saying that they may all be the same.
ところで単一の空心コイルからなる空心リアクトルでは
、この空心コイルを構成する電線の抵抗Ｒのリアクタン
スＸに対する割合はたとえば３％程度、すなわちＲ／Ｘ
は３／１００したがって０．０３程度である。By the way, in an air-core reactor consisting of a single air-core coil, the ratio of the resistance R of the electric wire constituting the air-core coil to the reactance X is, for example, about 3%, that is, R/X
is 3/100, which is about 0.03.
ところが前記のように空心コイル１，２をその巻回方向
を逆にし、かつ同軸に配置すれば、両空心コイルによっ
て発生する磁束が互いに打ち消し合うため、その合成リ
アクタンスＸ′は空心コイル単独の場合の約１０％程度
となる。また各空心コイル１，２は互いに並列に接続さ
れているので、合成抵抗値Ｒ′は単独の空心コイルのそ
れの約半分となる。したがってＲ’ ／Ｘ’は１．５／
１０すなわち０．１５程度となる。However, if the winding directions of the air-core coils 1 and 2 are reversed and they are placed coaxially as described above, the magnetic fluxes generated by both air-core coils cancel each other out, so the combined reactance X' of the air-core coil alone is It is about 10% of the total. Furthermore, since the air-core coils 1 and 2 are connected in parallel with each other, the combined resistance value R' is approximately half that of a single air-core coil. Therefore, R'/X' is 1.5/
10, that is, about 0.15.
以上の説明から理解できるように１合成リアクタンスに
較べて比較的大きな合成抵抗を有するリアクトルがこれ
によって製作することができるようになる。そして合成
リアクタンスを決定する両空心コイルの相互結合係数は
、各空心コイルの高さ、平均直径などを適当に選ぶこと
によって、１に近い任意の値とすることができるので、
前記合成抵抗を前記合成リアクタンスに対して所望の値
に設計できるようになる。具体的にはこの値は５〜２５
％程度が適当である。As can be understood from the above description, a reactor having a relatively large combined resistance compared to one combined reactance can be manufactured by this method. The mutual coupling coefficient of both air-core coils, which determines the composite reactance, can be set to any value close to 1 by appropriately selecting the height, average diameter, etc. of each air-core coil.
The combined resistance can be designed to a desired value with respect to the combined reactance. Specifically, this value is 5 to 25
% is appropriate.
また空心コイルを通常の電線を使って製作することがで
き、たとえばこの電線としてアルミニウム線のように軽
量で、比熱の大きいものを使用すれば、発生損失に対す
る空心コイルの温度上昇を低く押えることができるよう
になる。また空心コイルの軽量化が可能となるから、コ
イル加工の容゛易性とあいまって大きな経済的効果をも
たらす６ちなみにインダクタンス５３０ｍＨ，直列抵抗
分３０Ω、電流定格２２５ Ａ １０秒間の中性点りア
クドルを。Additionally, air-core coils can be manufactured using ordinary electric wires. For example, if the wires are lightweight and have a high specific heat, such as aluminum wires, the temperature rise of the air-core coils due to the generated loss can be kept low. become able to. In addition, since it is possible to reduce the weight of the air-core coil, this, combined with the ease of coil processing, brings about a great economical effect6.Incidentally, the inductance is 530mH, the series resistance is 30Ω, the current rating is 225A, and the neutral point accelerator for 10 seconds. of.
固有抵抗約２０μΩ−１の銅ニツケル合金製の電線で製
作すると、その空心コイルの高さは約１０００ｍｍ。When manufactured using a copper-nickel alloy wire with a specific resistance of about 20 μΩ-1, the height of the air-core coil is about 1000 mm.
所要導体重量は約５００ｋｇとなり、最高上昇温度は約
９０℃である。The required weight of the conductor is approximately 500 kg, and the maximum temperature rise is approximately 90°C.
一方この発明にしたがい同じリアクトルを、固有抵抗２
．８３μΩ−１のアルミニウム線で製作し、同軸コイル
間の相互結合係数を約０．８に選定すれば、空心コイル
の高さは約１１６０ｎｍとなるが、所要導体重量は約１
８０ｋｇ、最高上昇温度は約９０℃であって、軽量化の
可能性は明らかである。リアクトルの容量が更に大きい
場合は、この軽量化は一層顕著となる。On the other hand, according to this invention, the same reactor has a specific resistance of 2
．． If it is made of 83 μΩ-1 aluminum wire and the mutual coupling coefficient between the coaxial coils is selected to be approximately 0.8, the height of the air-core coil will be approximately 1160 nm, but the required conductor weight will be approximately 1
It weighs 80 kg and the maximum temperature rise is about 90°C, so the possibility of weight reduction is clear. If the capacity of the reactor is even larger, this weight reduction will be even more remarkable.
第２図に示す実施例は、空心コイル間の結合を更に高め
る構成を示し、空心コイル１を２分割して空心コイル１
１．１２とし、これを空心コイル２の内外側からはさみ
込む構造としたものである。The embodiment shown in FIG. 2 shows a configuration that further increases the coupling between the air-core coils, and the air-core coil 1 is divided into two parts.
1.12, which is sandwiched between the inside and outside of the air-core coil 2.
空心コイル１１．１２の磁束の方向は、空心コイル２の
それと逆であることは言うまでもない。It goes without saying that the direction of the magnetic flux in the air-core coils 11 and 12 is opposite to that in the air-core coil 2.
第３図は空心コイル間からの洩れ磁束がタンク５の壁と
交差して渦電流が発生して過熱するのを防止するための
構成を示し、タンク５の内側にアルミニュウムなどのよ
うな非磁性良導体の円筒状電磁シールド６を配置したも
のである。第４図はこの電磁シールド６を、洩れ磁束の
大きいコイル上下の部分まで延長した構成である。６１
．６２はその延長部を示す。なおこの延長部６１．６２
は電磁シールド６と離れていてもよい。ただしこれらは
すべて何れも接地しておく。Figure 3 shows a configuration to prevent leakage magnetic flux from between the air-core coils from intersecting the walls of the tank 5, generating eddy currents and overheating. A cylindrical electromagnetic shield 6 of good conductivity is arranged. FIG. 4 shows a configuration in which this electromagnetic shield 6 is extended to the upper and lower parts of the coil where the leakage magnetic flux is large. 61
．． 62 indicates its extension. Furthermore, this extension part 61.62
may be separated from the electromagnetic shield 6. However, all of these should be grounded.
（発明の効果）
以上詳述したようにこの発明によれば、空心コイルを構
成する電線の抵抗を利用してリアクトルの直列抵抗とす
る場合、この電線として通常のものを使用してもリアク
タンスに対する比の大きい抵抗値を呈する直列抵抗分が
得られるようになるといった効果を奏する。(Effects of the Invention) As detailed above, according to the present invention, when the resistance of the electric wire constituting the air-core coil is used as the series resistance of the reactor, even if a normal electric wire is used, the reactance This has the effect that a series resistance component exhibiting a large resistance value can be obtained.
第１図はこの発明の実施例を示す断面図、第２図乃至第
４図はこの発明の他の各実施例を示す断面図である。FIG. 1 is a sectional view showing an embodiment of the invention, and FIGS. 2 to 4 are sectional views showing other embodiments of the invention.
Claims (1)
配置するとともに、前記各空心コイルを互いに並列に接
続してなる空心リアクトル装置。An air-core reactor device in which a plurality of air-core coils having opposite winding directions are arranged coaxially, and the air-core coils are connected in parallel to each other.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60043182A JPS61201407A (en) | 1985-03-04 | 1985-03-04 | Air-core reactor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60043182A JPS61201407A (en) | 1985-03-04 | 1985-03-04 | Air-core reactor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS61201407A true JPS61201407A (en) | 1986-09-06 |
| JPH057854B2 JPH057854B2 (en) | 1993-01-29 |
Family
ID=12656752
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP60043182A Granted JPS61201407A (en) | 1985-03-04 | 1985-03-04 | Air-core reactor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61201407A (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10676923B2 (en) | 2016-03-07 | 2020-06-09 | Innovative Building Technologies, Llc | Waterproofing assemblies and prefabricated wall panels including the same |
| US10724228B2 (en) | 2017-05-12 | 2020-07-28 | Innovative Building Technologies, Llc | Building assemblies and methods for constructing a building using pre-assembled floor-ceiling panels and walls |
| US10900224B2 (en) | 2016-03-07 | 2021-01-26 | Innovative Building Technologies, Llc | Prefabricated demising wall with external conduit engagement features |
| US10961710B2 (en) | 2016-03-07 | 2021-03-30 | Innovative Building Technologies, Llc | Pre-assembled wall panel for utility installation |
| US10975590B2 (en) | 2014-08-30 | 2021-04-13 | Innovative Building Technologies, Llc | Diaphragm to lateral support coupling in a structure |
| US11054148B2 (en) | 2014-08-30 | 2021-07-06 | Innovative Building Technologies, Llc | Heated floor and ceiling panel with a corrugated layer for modular use in buildings |
| US11060286B2 (en) | 2014-08-30 | 2021-07-13 | Innovative Building Technologies, Llc | Prefabricated wall panel for utility installation |
| US11098475B2 (en) | 2017-05-12 | 2021-08-24 | Innovative Building Technologies, Llc | Building system with a diaphragm provided by pre-fabricated floor panels |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5529157A (en) * | 1978-08-22 | 1980-03-01 | Nissin Electric Co Ltd | Air-core reactor |
| JPS5632425U (en) * | 1979-08-20 | 1981-03-30 |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5399615A (en) * | 1977-02-10 | 1978-08-31 | Nat Jutaku Kenzai | Floor assembly method |
-
1985
- 1985-03-04 JP JP60043182A patent/JPS61201407A/en active Granted
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5529157A (en) * | 1978-08-22 | 1980-03-01 | Nissin Electric Co Ltd | Air-core reactor |
| JPS5632425U (en) * | 1979-08-20 | 1981-03-30 |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10975590B2 (en) | 2014-08-30 | 2021-04-13 | Innovative Building Technologies, Llc | Diaphragm to lateral support coupling in a structure |
| US11054148B2 (en) | 2014-08-30 | 2021-07-06 | Innovative Building Technologies, Llc | Heated floor and ceiling panel with a corrugated layer for modular use in buildings |
| US11060286B2 (en) | 2014-08-30 | 2021-07-13 | Innovative Building Technologies, Llc | Prefabricated wall panel for utility installation |
| US10676923B2 (en) | 2016-03-07 | 2020-06-09 | Innovative Building Technologies, Llc | Waterproofing assemblies and prefabricated wall panels including the same |
| US10900224B2 (en) | 2016-03-07 | 2021-01-26 | Innovative Building Technologies, Llc | Prefabricated demising wall with external conduit engagement features |
| US10961710B2 (en) | 2016-03-07 | 2021-03-30 | Innovative Building Technologies, Llc | Pre-assembled wall panel for utility installation |
| US10724228B2 (en) | 2017-05-12 | 2020-07-28 | Innovative Building Technologies, Llc | Building assemblies and methods for constructing a building using pre-assembled floor-ceiling panels and walls |
| US11098475B2 (en) | 2017-05-12 | 2021-08-24 | Innovative Building Technologies, Llc | Building system with a diaphragm provided by pre-fabricated floor panels |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH057854B2 (en) | 1993-01-29 |
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