JPH01293508A - Stationary induction apparatus - Google Patents
Stationary induction apparatusInfo
- Publication number
- JPH01293508A JPH01293508A JP12414388A JP12414388A JPH01293508A JP H01293508 A JPH01293508 A JP H01293508A JP 12414388 A JP12414388 A JP 12414388A JP 12414388 A JP12414388 A JP 12414388A JP H01293508 A JPH01293508 A JP H01293508A
- Authority
- JP
- Japan
- Prior art keywords
- sheet
- foil
- winding
- metal sheet
- metal
- 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.)
- Pending
Links
- 230000006698 induction Effects 0.000 title claims abstract description 17
- 229910052751 metal Inorganic materials 0.000 claims abstract description 55
- 239000002184 metal Substances 0.000 claims abstract description 55
- 239000011888 foil Substances 0.000 claims abstract description 50
- 238000004804 winding Methods 0.000 claims abstract description 44
- 239000000853 adhesive Substances 0.000 claims description 3
- 230000001070 adhesive effect Effects 0.000 claims description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 2
- 239000004952 Polyamide Substances 0.000 claims description 2
- 229910052782 aluminium Inorganic materials 0.000 claims description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 2
- 229910052802 copper Inorganic materials 0.000 claims description 2
- 239000010949 copper Substances 0.000 claims description 2
- 238000010438 heat treatment Methods 0.000 claims description 2
- 238000010030 laminating Methods 0.000 claims description 2
- 229920002647 polyamide Polymers 0.000 claims description 2
- -1 polyethylene terephthalate Polymers 0.000 claims description 2
- 229920000139 polyethylene terephthalate Polymers 0.000 claims description 2
- 239000005020 polyethylene terephthalate Substances 0.000 claims description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims 1
- 238000009413 insulation Methods 0.000 claims 1
- 230000003068 static effect Effects 0.000 claims 1
- 238000000034 method Methods 0.000 abstract description 2
- 230000004323 axial length Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000017105 transposition Effects 0.000 description 2
- 238000005219 brazing Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000013021 overheating Methods 0.000 description 1
- 238000003466 welding Methods 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〕 本発明は静止誘導電器に関するものである。[Detailed description of the invention] [Industrial application field] The present invention relates to stationary induction appliances.
鉄心脚の周囲に金属シートからなる箔巻線を備えた箔巻
静止誘導電器は、通常の巻線を用いた静止誘導電器に比
べ占積率がよいため、小形軽量化を実現できる利点があ
る。最近、そのすぐれた長所に鑑み、高電圧大容量の例
えば２７５ ｋＶ。Foil-wrapped stationary induction appliances that have foil windings made of metal sheets around the core legs have a better space factor than stationary induction appliances that use regular windings, so they have the advantage of being smaller and lighter. . Recently, in view of its excellent advantages, high voltage and large capacity, for example 275 kV.
１００ＭＶＡ級の変圧器に適用拡大する研究が行われて
いる。Research is being conducted to expand the application to 100 MVA class transformers.
このような箔巻線を用いた高電圧大容量変圧器では箔巻
線に流れる電流が示されている第３図に示されているよ
うに、箔巻線１の軸方向長さしが１５ｏＯ〜２０００１
ｍ１１程度になるが、ｍれｍ束による渦電流のために箔
巻線１を形成する金属シートの上下端部に電流が集中し
て流れ、箔巻線１の上下端部の電流は軸方向中央部に比
べて数倍の大きさになる。このような上下端部の電流集
中は金属シート端部の局部過熱を引き起すので、その解
決が望まれていた。In a high-voltage, large-capacity transformer using such a foil winding, the axial length of the foil winding 1 is 15oO as shown in Figure 3, which shows the current flowing through the foil winding. ~20001
However, due to the eddy current caused by the m bundle, the current flows in a concentrated manner at the upper and lower ends of the metal sheet forming the foil winding 1, and the current at the upper and lower ends of the foil winding 1 flows in the axial direction. It is several times larger than the central part. Since such current concentration at the upper and lower ends causes local overheating at the ends of the metal sheet, a solution to this problem has been desired.
上記従来技術記載のような現象を解決する方法として、
特開昭５９−１１６０７号公報では箔巻線を軸方向に分
割し、これを互いに転位することで箔巻線端部への電流
集中を抑制しようとしている。しかし１幅が広い箔巻線
の転位は難しく、金属シートを折曲げたり、別の短い金
属シートで転位すべき金属シート端部をロー付や溶接な
どにより接続することになるが、折曲げ部で金属シート
が損傷したり、接続作業が複雑になるばかりでなく、接
続部の寸法調整が必要などの欠点がある。また、転位の
回数は多いほど効果があるが、上述のような転位では転
位回数も制限されるため端部への電流集中対策としては
不十分である。As a method to solve the phenomenon described in the above prior art,
Japanese Patent Laid-Open No. 59-11607 attempts to suppress current concentration at the ends of the foil winding by dividing the foil winding in the axial direction and transposing the divided parts to each other. However, it is difficult to transpose a wide foil winding, and the metal sheet must be bent or the ends of the metal sheet to be transposed must be connected with another short metal sheet by brazing or welding. This has drawbacks such as damage to the metal sheet, complicating the connection work, and the need to adjust the dimensions of the connection. Further, although the greater the number of dislocations, the more effective the dislocation is, the above-mentioned dislocations limit the number of dislocations and are therefore insufficient as a countermeasure against current concentration at the end.
本発明は以上の点に鑑みなされたものであり、箔巻線の
巻線端部への電流集中を防止し、信頼性の向上を可能と
した静止誘導電器を提供することを目的とするものであ
る。The present invention has been made in view of the above points, and an object of the present invention is to provide a stationary induction electric appliance that prevents current concentration at the ends of the foil winding and improves reliability. It is.
（ＩＩＩＭを解決するための手段〕
上記目的は、箔状シートを、一帯の金属シートの幅をｎ
を整数とした場合に必要な箔巻線高さの４ｎ分の１とし
、前記幅の二帯の金属シートを絶縁シート上に並行に置
き、所定のピッチでほぼ金属シートの幅に相当する距離
だけ二帯の金属シートを各々別々に上側または下側へ連
続的に位置をずらせながら絶縁シートと金属シートとを
一体に積層・形成することにより、達成される。(Means for solving IIIM) The above purpose is to make a foil sheet with a width of n
When is an integer, set it as 1/4n of the required height of the foil winding, place two bands of metal sheets of the above width in parallel on an insulating sheet, and set a distance approximately equivalent to the width of the metal sheet at a predetermined pitch. This is achieved by integrally laminating and forming the insulating sheet and the metal sheet while continuously shifting the positions of the two bands of metal sheets separately upward or downward.
箔状シートを、一帯の金属シートの幅を必要な箔巻線高
さの４ｎ （ｎ＝整数）分の１とし、前記幅の二帯の金
属シートを絶縁シート上に並行に置き、所定のピッチで
ほぼ金属シートの幅に相当する距離だけ二帯の金属シー
トを各々別々に上側または下側へ連続的に位置をずらせ
ながら絶縁シートと金属シートとを一体に積層・形成し
たので、金属シートは任意のピッチで連続的に上下の位
置が交互に入れ替っていて、これを巻回して箔巻線を構
成した場合に金属シートが上下に転位されたと同じ構成
になって、一帯の金属シートのみが箔巻線の端部を形成
することがなくなり、箔巻線の巻線端部への電流集中を
防止することができる。The width of one band of the metal sheet is set to 1/4n (n = integer) of the required height of the foil winding, and two bands of the metal sheet with the above width are placed in parallel on an insulating sheet, and a predetermined width is set. Since the insulating sheet and the metal sheet are laminated and formed as one, the insulating sheet and the metal sheet are integrally stacked and formed by continuously shifting the two bands of metal sheets separately upward or downward by a distance corresponding to the width of the metal sheet in terms of pitch. The upper and lower positions of the wire are continuously alternated at an arbitrary pitch, and if this is wound to form a foil winding, the metal sheet will have the same configuration as the metal sheet is transposed vertically, and a band of metal sheets will be formed. Only the ends of the foil winding are no longer formed, and current concentration at the ends of the foil winding can be prevented.
以下、図示した実施例に基づいて本発明を説明する。第
１図および第２図には本発明の一実施例が示されている
。本実施例は箔状シート２を、一帯の金属シート２ａの
幅を必要な箔巻線の軸方向長さ（高さ）Ｌの４ｎ（ｎ＝
整数）分の１とし、上述の幅の二帯の金属シート２ａを
絶縁シート２ｂ上に並行に置き、所定のピッチｐでほぼ
金属シート２ａの幅に相当する距離Ωだけ二帯の金属シ
ート２ａを各々別々に上側または下側へ連続的に位置を
ずらせながら絶縁シート２ｂと金属シート２ａとを一体
に積層・形成した。このようにすることにより、この箔
状シート２を巻回して箔巻線を構成した場合に金属シー
ト２ａが上下に転位されたと同じ構成になって、箔巻線
の巻線端部への電流集中を防止し、信頼性の向上を可能
とした静止誘導電器を得ることができる。The present invention will be explained below based on the illustrated embodiments. An embodiment of the invention is shown in FIGS. 1 and 2. FIG. In this embodiment, the width of the metal sheet 2a is the required axial length (height) L of the foil winding, which is 4n (n=
(an integer), two bands of metal sheets 2a having the above-mentioned width are placed in parallel on an insulating sheet 2b, and two bands of metal sheets 2a are placed at a predetermined pitch p by a distance Ω approximately corresponding to the width of the metal sheets 2a. The insulating sheet 2b and the metal sheet 2a were integrally laminated and formed while continuously shifting their positions upward or downward. By doing this, when the foil-like sheet 2 is wound to form a foil winding, the metal sheet 2a has the same configuration as being transposed vertically, and the current to the end of the foil winding is It is possible to obtain a stationary induction electric appliance that prevents concentration and improves reliability.
すなわち箔巻線の必要軸方向長さしを４ｎ（ｎ＝１．２
．３・・・）等分した幅を一帯の金属シート２ａの幅に
選び、この幅の金帯シート２．ａ二帯を第１図に示され
ているように絶縁シート２ｂ上に並行に置き、絶縁シー
ト２ｂと金属シート２ａとを接着などにより一体に積層
する。この時、金属シート２ａは適当なピッチｐで、は
ぼ金属シート２ａの幅に相当する距離Ｑだけ上側または
下側へ連続的に位置をずらせながら、絶縁シート２ｂと
一体に積層し、箔状シート２を予め製作する。第１図は
ｎ＝１の場合を示すが、ｎ≧２の場合は第１図の形状を
高さ方向に連続させることによって、箔状シート２が製
作できる。この箔状シート２を２枚製作し、２枚のうち
１枚は絶縁シート２ｂの上下位置に金属シート２ａが配
置された第１図の８の位置を箔巻線の巻始め位置にし、
他の１枚は絶縁シート２ｂの中央部に金属シート２８が
配置された第１図すの位置を箔巻線の巻始め位置に選ん
で、これら２枚の箔状シート２を重ねて同時に巻回して
、箔巻線を構成する。第２図はこの状態をｎ＝１の場合
について示しており、実線で表した第１の箔状シート２
′で第１図のａの位置が巻始め位置になっている。また
、第２図の点線で表した第２の箔状シート２＃で第１図
のｂの位置が巻始め位置になっている。第２図のように
２枚の箔状シート２’ 、２’を重ねて巻回することに
より、軸方向位置の異なる四帯の金属シート２ａが同時
に巻回され、しかも各々の金属シート２ａはピッチＰの
長さだけ巻回されるごとに上下の位置が入れ替り転位が
なされることになる。ピッチｐは任意に選定できるので
転位の回数も多くすることができる。In other words, the required axial length of the foil winding is 4n (n=1.2
．． 3...) Select the equally divided width as the width of the entire band of metal sheet 2a, and use this width of the gold band sheet 2. The two strips a are placed in parallel on an insulating sheet 2b as shown in FIG. 1, and the insulating sheet 2b and metal sheet 2a are laminated together by adhesive or the like. At this time, the metal sheet 2a is laminated integrally with the insulating sheet 2b while continuously shifting its position upward or downward by a distance Q corresponding to the width of the metal sheet 2a at an appropriate pitch p, and is laminated integrally with the insulating sheet 2b. Manufacture sheet 2 in advance. Although FIG. 1 shows the case where n=1, when n≧2, the foil-like sheet 2 can be manufactured by making the shape shown in FIG. 1 continuous in the height direction. Two of these foil-like sheets 2 are manufactured, and one of the two is set at the position 8 in FIG. 1, where the metal sheet 2a is placed above and below the insulating sheet 2b, as the starting position of the foil winding.
For the other sheet, the position shown in Figure 1, where the metal sheet 28 is arranged in the center of the insulating sheet 2b, is selected as the starting position of the foil winding, and these two foil sheets 2 are overlapped and wound at the same time. Turn to form a foil winding. FIG. 2 shows this state for the case where n=1, and the first foil sheet 2 represented by a solid line
', the position a in Figure 1 is the winding start position. Further, in the second foil sheet 2# indicated by the dotted line in FIG. 2, the position b in FIG. 1 is the winding start position. By overlapping and winding two foil sheets 2' and 2' as shown in Fig. 2, four bands of metal sheets 2a having different axial positions are wound at the same time, and each metal sheet 2a is Every time the wire is wound by the length of pitch P, the upper and lower positions are switched and transposition occurs. Since the pitch p can be arbitrarily selected, the number of dislocations can also be increased.
このように本実施例によれば予め巻線の軸方向位置を連
続的に変化させた箔状シートを製作するので、それを巻
回するだけで自動的に転位がなされ、金属シートを折り
曲げたり、別の金属シートで接続する必要もない。また
、転位ピッチも任意に選べるので転位の回数も多くする
ことができ、箔巻線の上下端部の電流集中を効果的に抑
制でき、折り曲げや接続個所もないので信頼性の高い大
容量箔巻線の静止誘導電器を得ることができる。In this way, according to this embodiment, a foil sheet is manufactured in which the axial position of the winding wire is continuously changed, so that simply by winding the foil sheet, the transposition is automatically performed, and the metal sheet can be bent or folded. , there is no need to connect with another metal sheet. In addition, since the dislocation pitch can be arbitrarily selected, the number of dislocations can be increased, effectively suppressing current concentration at the upper and lower ends of the foil winding, and since there are no bends or connection points, highly reliable large-capacity foil can be used. A winding stationary induction appliance can be obtained.
なお、絶縁シートはポリエチレンテレフタレート、ポリ
アミドで形成し、金属シートはアルミニウム、銅等で形
成した。そして箔状シートは、絶縁シートと金属シート
との間に接着剤を流し込み、加圧ロールおよび加熱ロー
ルを通して一体に積層した。The insulating sheet was made of polyethylene terephthalate or polyamide, and the metal sheet was made of aluminum, copper, or the like. The foil sheet was then laminated together by pouring an adhesive between the insulating sheet and the metal sheet and passing them through a pressure roll and a heating roll.
また、本実施例では主に変圧器について述べたが、リア
クトル等についても適用でき、同様の作用効果を奏する
ことは云うまでもない。Further, although the present embodiment mainly describes a transformer, it goes without saying that it can also be applied to a reactor and the like, and similar effects can be achieved.
上述のように本発明は静止誘導電器の箔巻線の巻線端部
への電流集中を防止し、信頼性が向上するようになって
、箔巻線の巻線端部への電流集中を防止し、信頼性の向
上を可能とした静止誘導電器を得ることができる。As described above, the present invention prevents current concentration at the end of the foil winding of a stationary induction appliance, improves reliability, and prevents current concentration at the end of the foil winding. It is possible to obtain a stationary induction electric appliance that can prevent the above problems and improve reliability.
第１図は本発明の静止誘導電器の一実施例の箔状シート
の展開図、第２図は同じく一実施例の２枚の箔状シート
を重ねて巻回した箔巻線の展開図、第３図は従来の静止
誘導電器の箔巻線に流れる電流を示す軸方向電流分布図
である。
１・・・箔巻線、２．２’ 、２’・・・箔状シート、
２ａ・・・金属シート、２ｂ・・・絶縁シート。
オ
高１図
化２−凹
Ｚ”−一一冶１人ンーｒFIG. 1 is a developed view of a foil-like sheet according to an embodiment of the stationary induction electric device of the present invention, FIG. 2 is a developed view of a foil winding formed by overlapping and winding two foil-like sheets of the same embodiment, FIG. 3 is an axial current distribution diagram showing the current flowing through the foil winding of a conventional stationary induction appliance. 1...Foil winding wire, 2.2', 2'...Foil sheet,
2a...metal sheet, 2b...insulating sheet. O high school 1 drawing 2-concave Z”-Ichiji 1 person-r
Claims (4)
心脚に巻回して構成される静止誘導電器において、前記
箔状シートが、一帯の金属シートの幅をｎを整数とした
場合に必要な箔巻線高さの４ｎ分の１とし、前記幅の二
帯の金属シートを絶縁シート上に並行に置き、所定のピ
ッチでほぼ金属シートの幅に相当する距離だけ二帯の金
属シートを各々別々に上側または下側へ連続的に位置を
ずらせながら絶縁シートと金属シートとが一体に積層・
形成されたものであることを特徴とする静止誘導電器。1. In a stationary induction electric appliance configured by winding a foil-like sheet made of an insulating sheet and a metal sheet around an iron core leg, the foil-like sheet has a foil winding that is necessary when the width of the metal sheet in one band is an integer. The height of the line is 1/4n, and two bands of metal sheets with the above width are placed in parallel on an insulating sheet, and each of the two bands of metal sheets is separated at a predetermined pitch by a distance approximately corresponding to the width of the metal sheet. The insulation sheet and metal sheet are laminated together while continuously shifting their positions upward or downward.
A stationary induction electric appliance characterized by being formed.
ポリアミドで形成されたものである特許請求の範囲第１
項記載の静止誘導電器。2. The insulating sheet is made of polyethylene terephthalate,
Claim 1 is made of polyamide.
Stationary induction electric appliances as described in section.
ものである特許請求の範囲第１項記載の静止誘導電器。3. A static induction electric appliance according to claim 1, wherein the metal sheet is made of aluminum or copper.
トとの間に接着剤を流し込み、加圧ロールおよび加熱ロ
ールを通して一体に積層されたものである特許請求の範
囲第１項記載の静止誘導電器。4. 2. The stationary induction electric appliance according to claim 1, wherein the foil-like sheet is obtained by pouring an adhesive between the insulating sheet and the metal sheet and laminating them together through a pressure roll and a heating roll.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12414388A JPH01293508A (en) | 1988-05-21 | 1988-05-21 | Stationary induction apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12414388A JPH01293508A (en) | 1988-05-21 | 1988-05-21 | Stationary induction apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01293508A true JPH01293508A (en) | 1989-11-27 |
Family
ID=14877993
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12414388A Pending JPH01293508A (en) | 1988-05-21 | 1988-05-21 | Stationary induction apparatus |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01293508A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2012119404A (en) * | 2010-11-30 | 2012-06-21 | Fuji Electric Co Ltd | Superconducting coil |
| JP2019067977A (en) * | 2017-10-03 | 2019-04-25 | 東芝産業機器システム株式会社 | Sheet coil |
-
1988
- 1988-05-21 JP JP12414388A patent/JPH01293508A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2012119404A (en) * | 2010-11-30 | 2012-06-21 | Fuji Electric Co Ltd | Superconducting coil |
| JP2019067977A (en) * | 2017-10-03 | 2019-04-25 | 東芝産業機器システム株式会社 | Sheet coil |
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