JPH0283908A - Stationary induction apparatus - Google Patents
Stationary induction apparatusInfo
- Publication number
- JPH0283908A JPH0283908A JP23508588A JP23508588A JPH0283908A JP H0283908 A JPH0283908 A JP H0283908A JP 23508588 A JP23508588 A JP 23508588A JP 23508588 A JP23508588 A JP 23508588A JP H0283908 A JPH0283908 A JP H0283908A
- Authority
- JP
- Japan
- Prior art keywords
- winding group
- winding
- width
- magnetic flux
- windings
- 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
- 230000006698 induction Effects 0.000 title claims description 23
- 238000004804 winding Methods 0.000 claims abstract description 150
- 230000004907 flux Effects 0.000 claims abstract description 51
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 13
- 239000002184 metal Substances 0.000 claims description 44
- 229910052751 metal Inorganic materials 0.000 claims description 44
- 239000004020 conductor Substances 0.000 claims description 2
- 239000011888 foil Substances 0.000 abstract description 15
- 230000000694 effects Effects 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 2
- 239000012141 concentrate Substances 0.000 description 1
- 230000020169 heat generation Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000013021 overheating Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
Landscapes
- Coils Of Transformers For General Uses (AREA)
Abstract
Description
【発明の詳細な説明】
［産業上の利用分野コ
本発明は変圧器等の静止誘導電器に係り、特にシート素
線を巻回して成る箔巻線を用いた静止誘導電器に関する
。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to stationary induction electric appliances such as transformers, and more particularly to stationary induction electric appliances using foil windings formed by winding sheet strands.
［従来の技術］
最近、鉄心脚の周囲に金属シートを巻回して成る箔巻線
を備えた静止誘導電器の高電圧大容量化が進められてい
る。この種の静止誘導電器は１通常の巻線を用いた静止
誘導電器に比べて巻線の占積率が良いため、小形、軽量
化を実現できる利点があり、既に数１０ＫＶＡから数１
００ ＫＶＡ程度の低電圧小容量の変圧器等で実用化さ
れている。[Prior Art] Recently, progress has been made to increase the high voltage and capacity of stationary induction appliances equipped with foil windings formed by winding metal sheets around iron core legs. This type of stationary induction electric appliance has a better winding space factor than a stationary induction electric appliance using ordinary windings, so it has the advantage of being smaller and lighter, and has already gone from several tens of KVA to several tens of KVA.
It has been put to practical use in low-voltage, small-capacity transformers of about 0.00 KVA.
しかしながら、箔巻線を用いた静止誘導電器では、巻線
の上下端部付近に渦電流が著しく集中する現象があり、
これを第８図によって説明する。However, in stationary induction appliances using foil windings, there is a phenomenon in which eddy currents are significantly concentrated near the upper and lower ends of the windings.
This will be explained with reference to FIG.
同図（ａ）は巻線近傍を示す縦断面図で、鉄心脚１に巻
回した内側巻線２ａと外側巻線２ｂを有し、全体がタン
ク３内に構成されている。両巻線２ａ。FIG. 5A is a longitudinal cross-sectional view showing the vicinity of the winding, which has an inner winding 2a and an outer winding 2b wound around the core leg 1, and is entirely constructed within the tank 3. Both windings 2a.
２ｂに負荷電流が流れると、概略点線で示すような漏洩
磁束が生じ、この漏洩磁束によって両巻線２ａ、２ｂに
は大きな／ｒＡｔｆｔ流が発生する。この渦電流は同図
（’ｂ ）に示すように巻線の上下端付近で最大となる
漏洩磁束の半径方向成分が、箔巻線を構成する金属シー
トを鎖交する際に生ずるもので。When a load current flows through the windings 2b, a leakage magnetic flux roughly shown by the dotted line is generated, and this leakage magnetic flux generates a large /rAtft current in both the windings 2a and 2b. This eddy current is generated when the radial component of the leakage magnetic flux, which reaches its maximum near the upper and lower ends of the winding, interlinks the metal sheets that make up the foil winding, as shown in the same figure ('b).
両巻線２ａ、２ｂの上下端付近に過大に過電流を集中さ
せるだけでなく、本来の漏洩磁束の分布をも大きく変歪
させ、両巻線２ａ、２ｂの近傍に存在する金属体、例え
ばタンク３での発生損失を増大させてしまう。この点を
第９図で更に説明する。Not only does it excessively concentrate overcurrent near the upper and lower ends of both windings 2a and 2b, but it also greatly distorts the original leakage magnetic flux distribution, causing metal objects that exist near both windings 2a and 2b, such as This increases the loss generated in the tank 3. This point will be further explained with reference to FIG.
第９図（ａ）は内側巻１１Ａ２ａおよび外側巻線２ｂを
共に平角電線で構成した場合の漏洩磁束分布の計算例で
、また同図（ｂ）は内側巻線２ａおよび外側巻線２ｂを
共に箔巻線で構成した場合の漏洩磁束分布の計算例であ
る。同図（ａ）の平角電線を用いた場合、漏洩磁束が鉄
心脚１側に片寄って多く侵入し、一方、タンク３側への
侵入が少ないのでタンク３での発熱等の問題は少ない、
しかし箔巻線を用いた同図（ｂ）は、同図（ａ）とは異
なり、巻線２ａ、２ｂの上下端部で急激に磁束が飛散す
る独特の漏洩磁束分布となっている。これは、箔巻線を
用いた場合、その金属シートに流れる渦電流によって生
ずる磁束の反抗力により、漏洩磁束が巻線２ａ、２ｂ中
に閉じ込められるようになり、巻１ｉ２ａ、２ｂの上下
端部で鉄心脚１とタンク３側に分けられて分布するため
である。このためタンク３への漏洩磁束は、同図（ａ）
よりも大幅に増大し、それによってタンク３での過熱等
の不具合が生じてしまう。FIG. 9(a) is an example of calculating the leakage magnetic flux distribution when both the inner winding 11A2a and the outer winding 2b are made of rectangular wires, and FIG. This is an example of calculation of leakage magnetic flux distribution when configured with foil winding. When using the rectangular electric wire shown in Fig. 3(a), a large amount of leakage magnetic flux intrudes toward the iron core leg 1 side, and less intrusion into the tank 3 side, so there are fewer problems such as heat generation in the tank 3.
However, the diagram (b) in which foil windings are used differs from the diagram (a) in that the leakage magnetic flux distribution is unique in that the magnetic flux suddenly scatters at the upper and lower ends of the windings 2a and 2b. This is because when foil windings are used, the leakage magnetic flux is trapped in the windings 2a and 2b due to the repulsive force of the magnetic flux generated by the eddy current flowing through the metal sheet, and the upper and lower ends of the windings 1i2a and 2b This is because they are distributed separately on the iron core leg 1 and tank 3 sides. Therefore, the leakage magnetic flux to tank 3 is as shown in the same figure (a).
, which causes problems such as overheating in the tank 3.
そこで、従来の静止誘導電器においては、特開昭５８−
８５５０９号公報、特開昭５８−８５５１０号公報に示
されるように磁気シールドや補助巻線を用いて巻線の上
下端部での漏洩磁束の分布を補正したり、また特開昭６
２−１２６６１１号公報、特開昭６２−１０９３０７号
公報および実公昭５０−３３６１９号公報に示されるよ
うに、内側巻線と外側巻線の箔巻線を構成する金属シー
トの幅に差をつけて、巻線の上下端部の漏洩磁束分布を
変えるようにしていた。Therefore, in conventional static induction electric appliances,
As shown in Japanese Patent Application Laid-Open No. 85509 and 1985-85510, the distribution of leakage magnetic flux at the upper and lower ends of the winding is corrected by using magnetic shields and auxiliary windings.
As shown in Japanese Patent Application Laid-open No. 2-126611, Japanese Patent Application Laid-open No. 1983-109307, and Japanese Utility Model Publication No. 50-33619, the widths of the metal sheets constituting the foil windings of the inner and outer windings are made different. Therefore, the leakage magnetic flux distribution at the upper and lower ends of the winding was changed.
［発明が解決しようとする課題］
従来の静止誘導電器は、上述したように箔巻線の上下端
部における漏洩磁界の飛散を防ぐために磁気シールドや
補助巻線を用いており、大容量化に伴って、これら付加
制御手段をより広範囲に配置しなければならず、構造が
複雑になって実用化が困難となる。また箔巻線を構成す
る金属シートの幅に差をつける方法では１巻線の上下端
部での漏洩磁束の飛散する様子を若干変えることができ
るが、タンクでの発生損失を低減する効果を期待するこ
とができなかった。[Problem to be solved by the invention] As mentioned above, conventional stationary induction electric appliances use magnetic shields and auxiliary windings to prevent scattering of leakage magnetic fields at the upper and lower ends of the foil windings, and it is difficult to increase the capacity. Accordingly, these additional control means must be disposed over a wider area, making the structure complex and making it difficult to put it into practical use. In addition, by making a difference in the width of the metal sheets that make up the foil winding, it is possible to slightly change the scattering of leakage magnetic flux at the upper and lower ends of one winding, but this method does not have the effect of reducing the loss generated in the tank. I couldn't live up to my expectations.
そこで本発明の目的は、箔巻線の近傍に位Ｔするタンク
での過大な発生損失を抑制した静止誘導電器を提供する
にある。SUMMARY OF THE INVENTION Therefore, an object of the present invention is to provide a stationary induction electric appliance that suppresses excessive loss generated in a tank located near a foil winding.
［課題を解決するための手段］
本発明は上記目的を達成するために、鉄心脚と、この鉄
心脚にほぼ同心的に巻回した内側巻線群および外側巻線
群とを備え、この外側巻線群が金属シートを重ねて構成
した静止誘導電器において、前記内側巻線群および前記
外側巻線群の形態を、漏洩磁束の径方向成分に対する前
記外側巻線の反抗力が前記内側巻線群の反抗力より大き
くなるように構成したことを特徴とする。[Means for Solving the Problems] In order to achieve the above object, the present invention includes a core leg, an inner winding group and an outer winding group wound approximately concentrically around the core leg, In a stationary induction electric appliance in which a winding group is formed by overlapping metal sheets, the shape of the inner winding group and the outer winding group is such that the repulsive force of the outer winding against the radial component of the leakage magnetic flux is the inner winding. It is characterized by being constructed so that the repulsive force is greater than that of the group.
［作用］
本発明の静止誘導電器は上述の如き構成であるため、漏
洩磁束の半径方向成分に対する反抗力はタンクに近い外
側巻線の方が大きいので１ｍ洩磁束の多くは鉄心脚側へ
向かうことになり、タンクへ侵入する磁束を大幅に低減
してタンクでの発生損失を大幅に抑制した静止誘導電器
が得られる。[Function] Since the stationary induction electric appliance of the present invention has the above-described configuration, the repulsive force against the radial component of the leakage magnetic flux is larger in the outer winding near the tank, so most of the 1m leakage magnetic flux goes toward the core leg side. As a result, a stationary induction electric appliance can be obtained in which the magnetic flux that enters the tank is significantly reduced, and the loss generated in the tank is significantly suppressed.
［実施例］ 以下本発明の実施例を図面によって説明する。[Example] Embodiments of the present invention will be described below with reference to the drawings.
第１図は変圧器の巻線近傍を示す縦断面図で、鉄心脚１
に箔巻線である内側巻線２ａおよび外側巻線２ｂが巻回
され、これら全体はタンク３内に収納されている。両巻
ｆｉ２ａ、２ｂは、その高さ方向に共に分割されている
が、内側巻４９ｉ２ａの方が外側巻線２ｂの分割数より
多くなっている。つまり１両巻１ｉ２ａ、２ｂを構成す
る金属シートの幅が異っており、内側巻線２ａの金属シ
ートの幅Ｑ１の方が外側巻線２ｂの金属シートの幅Ｑ２
よりも十分小さく成され、しかし全体の高さｈは両巻線
２ａ、２ｂともほぼ等しくされているにのように両巻線
２ａ、２ｂの高さ方向の分割数を選定することにより、
負荷電流により生ずる漏洩磁束の半径方向成分に対する
金属シートの磁束反抗力は１両巻線２ａ、２ｂの間で大
きな差が生じ、漏洩磁束の大部分は反抗力の弱い内側巻
線２ａ側、つまり鉄心脚１側に点線の矢印の如く向かい
、タンク３への侵入磁束を大幅に低減することができる
。Figure 1 is a longitudinal cross-sectional view showing the vicinity of the windings of the transformer.
An inner winding 2a and an outer winding 2b, which are foil windings, are wound around the inner winding 2a and the outer winding 2b, and these are all housed in the tank 3. Both windings fi2a and fi2b are divided in the height direction, but the number of divisions in the inner winding 49i2a is greater than that in the outer winding 2b. In other words, the widths of the metal sheets composing the two windings 1i2a and 2b are different, and the width Q1 of the metal sheet of the inner winding 2a is larger than the width Q2 of the metal sheet of the outer winding 2b.
By selecting the number of divisions in the height direction of both windings 2a and 2b, the overall height h is made substantially equal for both windings 2a and 2b.
There is a large difference in the magnetic flux reaction force of the metal sheet between the two windings 2a and 2b against the radial component of the leakage magnetic flux generated by the load current, and most of the leakage magnetic flux is on the inner winding 2a side where the reaction force is weaker, that is, It is directed toward the iron core leg 1 side as shown by the dotted arrow, and the magnetic flux penetrating into the tank 3 can be significantly reduced.
一般に、Ｎ巻線の金属シートの幅をａ、金属シートの電
気低効率をρとすると、金属シートに直角に侵入しよう
とする漏洩磁束に対する磁束反抗力Ｂｉは。Generally, if the width of the metal sheet of N windings is a, and the electrical efficiency of the metal sheet is ρ, then the magnetic flux reaction force Bi against the leakage magnetic flux that attempts to enter the metal sheet at right angles is:
Ｂ、ｃｅＱ”−（１） ρ となる。ただしｎ＝２〜３、ｍ＝ｏ〜１である。B, ceQ"-(1) ρ becomes. However, n=2 to 3 and m=o to 1.
従って、金属シートの幅ａを変化させると、金属シー１
−の磁束反抗力を最も有効に制御することになる。Therefore, when the width a of the metal sheet is changed, the metal sheet 1
This will most effectively control the magnetic flux reaction force of -.
第２図は本発明の他の実施例による変圧器の巻線近傍を
示す縦断面図である。外側巻線２ｂは第１図の場合と同
じく高さ方向に幅Ω２となるよう分割しているのに対し
、内側巻線２ａは外側巻線２ｂの幅Ｑ２よりも十分小さ
く、しかも上下端部に近ず（程その幅が狭くなるように
各輪の関係をＱ１３〉α、２〉Ｑ□□としている。これ
は第８図（ｂ）に示す漏洩磁束の半径方向成分の分布形
態を考慮し、渦電流の大きい内側巻線２ａの上下端部近
傍はど磁束反抗力を小さくする。FIG. 2 is a longitudinal sectional view showing the vicinity of the windings of a transformer according to another embodiment of the present invention. The outer winding 2b is divided into widths Ω2 in the height direction as in the case of FIG. The relationship between each ring is set as Q13〉α, 2〉Q□□ so that the width becomes narrower as the width becomes closer to However, the magnetic flux reaction force is reduced near the upper and lower ends of the inner winding 2a where the eddy current is large.
従って、内側巻線２ａの分割数をできるだけ少なくして
漏洩磁束を効果的に鉄心脚１側に向けさせ、これによっ
てタンクへの侵入磁束を大幅に低減し、間部での損失低
減をはかることができる。Therefore, the number of divisions of the inner winding 2a is reduced as much as possible to effectively direct the leakage magnetic flux toward the core leg 1 side, thereby significantly reducing the magnetic flux entering the tank and reducing the loss in the intermediate portion. Can be done.
第３図は更に異なる実施例による巻線近傍の縦断面図で
ある。この実施例では、内側巻線２ａの金属シートの幅
Ｑ、を外側巻線２ｂの金属シー１〜の＠ｃ ｚより十分
小さくすると共に、内側巻線２ａの全体の高さｈｌを外
側巻＃！２ｂの全体の高さｈ２に比べて低くなるように
している。FIG. 3 is a longitudinal cross-sectional view of the vicinity of the winding according to a further different embodiment. In this embodiment, the width Q of the metal sheet of the inner winding 2a is made sufficiently smaller than @cz of the metal sheets 1 to 1 of the outer winding 2b, and the overall height hl of the inner winding 2a is made smaller than the width Q of the metal sheet of the outer winding 2b. ! It is made to be lower than the overall height h2 of 2b.
このような構成によれば、内側巻線２ａの金属シートの
幅Ｑ□を小さくしたことにより漏洩磁束の半径方向成分
に対する磁束反抗力は弱くなり。According to such a configuration, by reducing the width Q□ of the metal sheet of the inner winding 2a, the magnetic flux reaction force against the radial component of the leakage magnetic flux becomes weaker.
また内側巻線２ａの高さｈ、を低くしたことにより外側
巻線２ｂの見かけ上の磁束反抗力が助長され、この結果
、漏洩磁束は点線の矢印のように一暦鉄心脚１側に向か
い、タンク３での損失低減がはかられる。Furthermore, by reducing the height h of the inner winding 2a, the apparent magnetic flux repulsion force of the outer winding 2b is promoted, and as a result, the leakage magnetic flux is directed toward the Ichireki iron core leg 1 side as shown by the dotted arrow. , the loss in tank 3 is reduced.
第４図は本発明の更に異なる実施例による巻線近傍を示
す縦断面図である。この実施例で内側巻１ｉ２ａは第１
図の場合と同じように外側巻線２ｂの金属シートの幅Ｑ
２よりも十分小さな幅Ｑ、の金属シートとされている。FIG. 4 is a longitudinal sectional view showing the vicinity of the winding according to still another embodiment of the present invention. In this embodiment, the inner winding 1i2a is the first
Width Q of the metal sheet of the outer winding 2b as in the case of the figure
It is said to be a metal sheet with a width Q, which is sufficiently smaller than 2.
また内側巻線２ａの金属シートの厚さＬ工は、外周巻線
２ｂの金属シートの厚さｔ２よりも十分大きくなされ、
内側巻線２ａとして平角線を用いることもできる。Further, the thickness L of the metal sheet of the inner winding 2a is made sufficiently larger than the thickness t2 of the metal sheet of the outer peripheral winding 2b,
A rectangular wire can also be used as the inner winding 2a.
この構成によれば、第１図の場合と同様の効果を得るこ
とができると共に、内側巻線２ａの導体断面積の増大に
より巻線構造の簡素化および電磁機械力に強い変圧器が
得られる。According to this configuration, it is possible to obtain the same effect as in the case of FIG. 1, and by increasing the conductor cross-sectional area of the inner winding 2a, it is possible to simplify the winding structure and obtain a transformer that is strong against electromagnetic mechanical forces. .
第５図は本発明の更に異なる実施例による巻線近傍を示
す縦断面図である。この実施例における基本的な構造は
第１図と同様であり、内側巻線２ａの金属シートの幅α
、は外側巻線２ｂの余所シートの幅＋２２よりも十分に
小さくされている。また内側巻線２ａの金属シートの材
質に注目すると、外側巻線２ｂのそれの電気抵抗率ρ２
よりも大きな電気抵抗率ρ１を有するものが選ばれてい
る。FIG. 5 is a longitudinal sectional view showing the vicinity of the winding according to still another embodiment of the present invention. The basic structure in this embodiment is the same as that shown in FIG. 1, and the width α of the metal sheet of the inner winding 2a is
, is made sufficiently smaller than the width of the remaining sheet of the outer winding 2b +22. Also, if we pay attention to the material of the metal sheet of the inner winding 2a, we can see that the electrical resistivity ρ2 of that of the outer winding 2b is
A material having an electrical resistivity ρ1 larger than that is selected.
従って、第１図の場合とほぼ同様の効果が得られると共
に、（１）式から分かるように一層漏洩磁束を鉄心脚１
側に向けることができ、タンク３での発生損失を低減す
ることができる。Therefore, almost the same effect as in the case of Fig. 1 can be obtained, and as can be seen from equation (1), leakage magnetic flux can be further reduced by
It can be turned to the side, and losses generated in the tank 3 can be reduced.
第６図は本発明の更に異なる実施例による巻線近傍の縦
断面図である。先の実施例はいずれも外側巻線２ｂも内
側巻線２ａと同様、その高さ方向に分割したが、この実
施例における外側巻線２ｂはその高さ方向に分割せず、
高さと同一・の’ｌ’ｉｔ Ｑ２で構成している。この
ため、外側巻ｌ／Ａ２ｂの磁束反抗力が大きくなり、内
側巻線２ａを十分小さな＠（１、とした効果と合わせて
、漏洩磁束を鉄心脚１側に向けて、タンク３への漏洩磁
束の侵入を減じることができる。FIG. 6 is a longitudinal sectional view of the vicinity of the winding according to still another embodiment of the present invention. In all of the previous embodiments, the outer winding 2b was divided in the height direction like the inner winding 2a, but the outer winding 2b in this embodiment was not divided in the height direction.
It is composed of 'l'it Q2 with the same height. Therefore, the magnetic flux reaction force of the outer winding l/A2b becomes large, and together with the effect of making the inner winding 2a sufficiently small @(1), the leakage magnetic flux is directed toward the iron core leg 1 side, and leakage to the tank 3 is reduced. Intrusion of magnetic flux can be reduced.
第７図は本発明の更に異なる実施例による巻線近傍の縦
断面図で、この実施例における巻線は三巻線構造となっ
ている。各巻線２ａ、２ａ ｂ。FIG. 7 is a longitudinal sectional view of the vicinity of the winding according to yet another embodiment of the present invention, and the winding in this embodiment has a three-winding structure. Each winding 2a, 2a b.
２ｂは、それぞれ金属シートを高さ方向に分割している
が、分割の幅について注目すると、鉄心脚１に近い巻線
はど小さくなっている。従って、磁束反抗力はタンク３
に近い巻線はど大きくなり、タンク３の漏洩磁束による
損失を低減することができる。2b, each metal sheet is divided in the height direction, but if you pay attention to the width of the division, the winding closer to the core leg 1 is smaller. Therefore, the magnetic flux reaction force is tank 3
The winding close to the tank 3 becomes larger, and losses due to leakage magnetic flux of the tank 3 can be reduced.
このように上記各実施例では複数の巻線を有するものに
おいて、タンク側の漏洩磁束の反抗力を鉄心脚側より大
きくすることによって、タンクへの漏洩磁束の侵入を抑
えて、タンクでの損失低減をはかることができる。In this way, in each of the above embodiments, in a device having a plurality of windings, by making the repulsive force of the leakage magnetic flux on the tank side larger than that on the core leg side, the leakage magnetic flux is suppressed from entering the tank, and the loss in the tank is reduced. can be reduced.
［発明の効果］
以上説明したように本発明は、タンク側に近い外側巻線
の磁束反抗力を内側巻線のそれより大きくしたため、漏
洩磁束を鉄心脚側へ向かうようにすることができ、これ
によってタンクでの発生損失を低減することができる。[Effects of the Invention] As explained above, in the present invention, the magnetic flux reaction force of the outer winding near the tank side is made larger than that of the inner winding, so that leakage magnetic flux can be directed toward the iron core leg side. This makes it possible to reduce losses generated in the tank.
第１図は本発明の一実施例に係る変圧器の巻線近傍を示
す縦断面図、第２図、第３図、第４図、第５図、第６図
および第７図は本発明のそれぞれ異なる他の実施例に係
る変圧器の巻線近傍を示す縦断面図、第８図（ａ）、（
ｂ）は従来の変圧器の巻線近傍を示す縦断面図および磁
束密度分布図、第９図（ａ）、（ｂ）は従来の平角電線
と箔巻線により巻線を構成した場合の漏洩磁束分布特性
図である。
１・・・・・鉄心脚、２ａ・・・・・・内側巻線、２ｂ
・・・・・外側巻線、３・・・・・・タンク。
第
図
第
図
弔
図
第
図
弔
図
弔
図
弔
図
弔
図
（ＣＩ）
（ｂ）
第
図
（Ｇ）
ｔｆ、來宇度
第
図
（ｂ）
ＱFIG. 1 is a vertical sectional view showing the vicinity of the winding of a transformer according to an embodiment of the present invention, and FIGS. FIGS. 8(a) and 8(a) are vertical cross-sectional views showing the vicinity of the windings of transformers according to other different embodiments, respectively.
b) is a vertical cross-sectional view and magnetic flux density distribution diagram showing the vicinity of the winding of a conventional transformer, and Figures 9 (a) and (b) show leakage when the winding is configured with conventional rectangular electric wire and foil winding. It is a magnetic flux distribution characteristic diagram. 1... Iron core leg, 2a... Inner winding, 2b
...outer winding, 3...tank. Figure Figure Funeral Figure Figure Funeral Figure Funeral Figure Funeral Figure Funeral Figure Funeral Figure Funeral Figure (CI) (b) Figure (G) tf, Comeback Figure (b) Q
Claims (8)
巻線群および外側巻線群とを備え、この外側巻線群が金
属シートを重ねて構成した静止誘導電器において、前記
内側巻線群および前記外側巻線群の形態を、漏洩磁束の
径方向成分に対する前記外側巻線の反抗力が前記内側巻
線群の反抗力より大きくなるように構成したことを特徴
とする静止誘導電器。1. In a stationary induction electric appliance comprising an iron core leg, and an inner winding group and an outer winding group wound approximately concentrically around the iron core leg, the outer winding group being formed by stacking metal sheets, the inner winding A stationary induction electric appliance, characterized in that the form of the group and the outer winding group are configured such that the repulsive force of the outer winding against the radial component of leakage magnetic flux is larger than the repulsive force of the inner winding group.
線群を構成する前記金属シートの幅よりも狭い幅の複数
の金属シートで構成したことを特徴とする静止誘導電器
。2. 2. The stationary induction electric appliance according to claim 1, wherein the inner winding group is composed of a plurality of metal sheets having a width narrower than the width of the metal sheets constituting the outer winding group.
属シートは、前記内側巻線の端部側が最小幅となる異な
る幅を有することを特徴とする静止誘導電器。3. 3. The stationary induction electric appliance according to claim 2, wherein the plurality of metal sheets of the inner winding group have different widths with a minimum width on an end side of the inner winding.
線群を構成する金属シートの幅より狭い幅の複数の金属
シートで構成し、かつ、全体高さが前記外側巻線群の全
体高さより低く構成したことを特徴とする静止誘導電器
。4. In claim 1, the inner winding group is composed of a plurality of metal sheets having a width narrower than the width of the metal sheets constituting the outer winding group, and the overall height is equal to the overall height of the outer winding group. A stationary induction electric appliance characterized by having a structure lower than the height.
線群を構成する金属シートの幅よりも狭い幅で、かつ前
記金属シートの厚さよりも厚い複数の導体で構成したこ
とを特徴とする静止誘導電器。5. In claim 1, the inner winding group is composed of a plurality of conductors having a width narrower than the width of the metal sheet constituting the outer winding group and thicker than the metal sheet. Stationary induction appliance.
線群を構成する金属シートの幅よりも狭い幅で、かつ前
記金属シートの電気抵抗率より大きな電気抵抗率を有す
る複数の金属シートで構成したことを特徴とする静止誘
導電器。6. In claim 1, the inner winding group comprises a plurality of metal sheets having a width narrower than the width of the metal sheets constituting the outer winding group and having an electrical resistivity greater than the electrical resistivity of the metal sheets. A stationary induction electric appliance characterized by the following configuration.
シートで構成し、かつ、前記内側巻線群は前記金属シー
トの幅よりも狭い幅の複数の金属シートで構成したこと
を特徴とする静止誘導電器。7. In claim 1, the outer winding group is composed of a single metal sheet, and the inner winding group is composed of a plurality of metal sheets having a width narrower than the width of the metal sheet. Stationary induction electric appliance.
属シートより成る内側巻線群および外側巻線群とを備え
た静止誘導電器において、前記内側巻線群と前記外側巻
線群との間に、金属シートより成る中間巻線群を設け、
前記内側巻線群と前記中間巻線群と前記外側巻線群のう
ち前記鉄心脚側に位置するもの程その金属シートの幅を
小さくしたことを特徴とする静止誘導電器。8. In a stationary induction electric appliance comprising a core leg, and an inner winding group and an outer winding group made of metal sheets substantially concentrically wound around the core leg, the inner winding group and the outer winding group are An intermediate winding group made of a metal sheet is provided between the
A stationary induction electric appliance characterized in that among the inner winding group, the intermediate winding group, and the outer winding group, the width of the metal sheet of the one located closer to the core leg side is made smaller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63235085A JP2564374B2 (en) | 1988-09-21 | 1988-09-21 | Stationary induction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63235085A JP2564374B2 (en) | 1988-09-21 | 1988-09-21 | Stationary induction |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0283908A true JPH0283908A (en) | 1990-03-26 |
| JP2564374B2 JP2564374B2 (en) | 1996-12-18 |
Family
ID=16980846
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP63235085A Expired - Lifetime JP2564374B2 (en) | 1988-09-21 | 1988-09-21 | Stationary induction |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2564374B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008069584A (en) * | 2006-09-15 | 2008-03-27 | Mitsubishi Plastics Ind Ltd | Fitting structure of cover plate for partition wall corner part |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5014101U (en) * | 1973-06-06 | 1975-02-14 | ||
| JPS5732613A (en) * | 1980-08-05 | 1982-02-22 | Mitsubishi Electric Corp | Electromagnetic induction winding |
-
1988
- 1988-09-21 JP JP63235085A patent/JP2564374B2/en not_active Expired - Lifetime
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5014101U (en) * | 1973-06-06 | 1975-02-14 | ||
| JPS5732613A (en) * | 1980-08-05 | 1982-02-22 | Mitsubishi Electric Corp | Electromagnetic induction winding |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008069584A (en) * | 2006-09-15 | 2008-03-27 | Mitsubishi Plastics Ind Ltd | Fitting structure of cover plate for partition wall corner part |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2564374B2 (en) | 1996-12-18 |
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