JPH0625934Y2 - High voltage winding - Google Patents
High voltage windingInfo
- Publication number
- JPH0625934Y2 JPH0625934Y2 JP13200687U JP13200687U JPH0625934Y2 JP H0625934 Y2 JPH0625934 Y2 JP H0625934Y2 JP 13200687 U JP13200687 U JP 13200687U JP 13200687 U JP13200687 U JP 13200687U JP H0625934 Y2 JPH0625934 Y2 JP H0625934Y2
- Authority
- JP
- Japan
- Prior art keywords
- winding
- windings
- duct
- block
- insulating
- 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.)
- Expired - Lifetime
Links
Landscapes
- Coils Of Transformers For General Uses (AREA)
- Insulating Of Coils (AREA)
Description
【考案の詳細な説明】 (産業上の利用分野) この考案は高電圧巻線に関する。DETAILED DESCRIPTION OF THE INVENTION Industrial Field This invention relates to high voltage windings.
(従来の技術) たとえば第5図に示すような電磁誘導機器たとえば変圧
器において、その鉄心1に低圧巻線2を、またこれに同
心状に高圧巻線3を巻回して構成する場合、電線として
丸線を使用したときの製作上の制約から、高圧巻線3を
複数のブロック巻線4を積み重ねるようにして構成する
ことは既によく知られている。5は各ブロック巻線4の
間を絶縁する絶縁部材である。(Prior Art) For example, in an electromagnetic induction device such as a transformer shown in FIG. 5, when a low voltage winding 2 is wound around an iron core 1 and a high voltage winding 3 is concentrically wound around the iron core 1, an electric wire It is already well known that the high voltage winding 3 is constructed by stacking a plurality of block windings 4 due to the manufacturing restrictions when a round wire is used as. An insulating member 5 insulates the block windings 4 from each other.
第4図は従来のブロック巻線4の断面図を示し、内側の
絶縁筒6の外周に複数枚の層間紙7を介して多層に電線
8を巻回し、外側の絶縁筒9を設けたあと、全体の周囲
を絶縁紙10によって巻回することにより構成されてい
る。FIG. 4 shows a cross-sectional view of a conventional block winding 4, in which an electric wire 8 is wound in multiple layers on the outer circumference of an inner insulating cylinder 6 via a plurality of interlayer papers 7 and an outer insulating cylinder 9 is provided. The insulating paper 10 is wound around the entire circumference.
なお層間紙7は電線8の脱落を防ぐために、端部を折曲
げて使用する。また絶縁紙10は所定長さだけ両端を長
くしたものを用い、巻線作業後に端部を外側または内側
に折曲げて、巻線の内周部および外周部のそれぞれを覆
うようにしている。The interlaminar paper 7 is used by bending the end portion thereof in order to prevent the electric wire 8 from falling off. Further, the insulating paper 10 has its both ends lengthened by a predetermined length, and after the winding work, the ends are bent outward or inward so as to cover the inner peripheral portion and the outer peripheral portion of the winding, respectively.
各ブロック巻線4では、その内周側と外周側のコーナー
部に電界が集中する。したがってこの部分が絶縁上の弱
点となるので、図のように内側と外側に絶縁筒6,9を
配置する。In each block winding 4, the electric field concentrates on the inner and outer peripheral corners. Therefore, since this portion becomes a weak point in insulation, the insulating cylinders 6 and 9 are arranged inside and outside as shown in the figure.
ところでこのような構成では、巻線の内部で発生した熱
は巻線内をその半径方向に沿って伝達され、巻線の内周
面および外周面より、その周囲に存在している絶縁油な
どの冷却媒体に伝達される。しかしこの種高圧巻線は巻
数が多いため、巻線の層数も数10層にわたることがあ
る。By the way, in such a structure, the heat generated inside the winding is transmitted along the radial direction inside the winding, and the insulating oil existing around the inner peripheral surface and the outer peripheral surface of the winding is Transmitted to the cooling medium. However, since this type of high-voltage winding has a large number of turns, the number of winding layers may be several tens.
そのため前記した従来構成の巻線では、その中央部の温
度がかなり高く上昇してしまう。これを回避するため従
来では巻線の断面積を大きくして電流密度を下げるよう
にしている。しかしこれでは巻線の大型化を伴うし、ま
た温度上昇の低減には限度があった。Therefore, in the above-described conventional winding, the temperature of the central portion of the winding increases considerably. To avoid this, conventionally, the cross-sectional area of the winding is increased to reduce the current density. However, this entails an increase in the size of the winding and there is a limit to the reduction in temperature rise.
(考案が解決しようとする問題点) この考案は絶縁性能の低下ならびに巻線構成の大型化を
伴うことなく、巻線の温度上昇の低減化を可能とするこ
とを目的とする。(Problems to be Solved by the Invention) The purpose of the present invention is to make it possible to reduce the temperature rise of the winding without lowering the insulation performance and increasing the size of the winding structure.
(問題点を解決するための手段) この考案は高電圧巻線のブロック巻線をその半径方向に
沿って分割して構成し、その内側の分割巻線と外側の分
割巻線にはその各コーナー部を絶縁する絶縁筒を設ける
とともに、両分割巻線の全周を絶縁紙によって巻回して
絶縁し、また両分割巻線の間に位置する分割巻線には巻
線の軸心方向に沿うダクトを設け、更に各ブロック巻線
間の絶縁部材には前記ダクトに連通するダクトを、巻線
の半径方向に貫通して設けたことを特徴とする。(Means for Solving Problems) This invention is configured by dividing a block winding of a high-voltage winding along its radial direction, and dividing each of the inside winding and the outside division winding into each of them. Insulation cylinders that insulate the corners are provided, and the entire circumference of both split windings is wrapped with insulating paper to insulate the split windings. A duct extending along the block winding is further provided, and a duct communicating with the duct is provided in the insulating member between the block windings so as to penetrate in the radial direction of the winding.
(実施例) この考案の実施例を第1図以降の各図によって説明す
る。なお第4図と同じ符号を付した部分は、同一または
対応する部分を示す。第1図に示す構成はひとつのブロ
ック巻線を3個の分割巻線によって構成した例を示して
いる。(Embodiment) An embodiment of the present invention will be described with reference to FIGS. In addition, the same reference numerals as those in FIG. 4 indicate the same or corresponding portions. The configuration shown in FIG. 1 shows an example in which one block winding is constituted by three divided windings.
内側の分割巻線11は、内側の絶縁筒6の外周に層間紙
7を介して電線8を多層に巻回し、その周囲を絶縁紙1
0で巻回して構成されてある。同様に外側の分割巻線1
2は外側の絶縁筒9を備えており、その内側には電線8
が層間紙7を介して電線8が多層に巻回されてあり、そ
の周囲を絶縁紙10で巻回されている。The inner divided winding 11 has multiple layers of the electric wire 8 wound around the outer circumference of the inner insulating cylinder 6 with the interlayer paper 7 interposed therebetween.
It is constructed by winding 0. Similarly, the outer split winding 1
2 is provided with an outer insulating tube 9 and an electric wire 8 inside thereof.
The electric wire 8 is wound in multiple layers via the interlayer paper 7, and the periphery thereof is wound with the insulating paper 10.
両分割巻線11,12の間には中間の分割巻線13が位
置するようにしてある。分割巻線13も層間紙を介して
電線8を多層に巻回されてあるが、その内側および外
側、すなわち分割巻線11の外側および分割巻線12の
内側との間に、冷却媒体が流通するダクト14を、巻線
の軸心方向に沿って延びるように形成しておく。An intermediate split winding 13 is located between the split windings 11 and 12. The split winding 13 is also formed by winding the electric wire 8 in multiple layers via interlayer paper, but the cooling medium flows between the inside and the outside thereof, that is, the outside of the split winding 11 and the inside of the split winding 12. The duct 14 is formed to extend along the axial direction of the winding.
このダクト14の形成には、たとえば第2図に示すよう
に台紙15の表面に片材16の多数を固定して構成した
スペーサ17を使用するとよい。このスペーサ17を分
割巻線11の外側および分割巻線12の内側に巻き付け
るようにして設置する。このとき隣合う片材16の間の
空間がダクト14として利用されるようになる。For forming the duct 14, for example, as shown in FIG. 2, it is preferable to use a spacer 17 configured by fixing a large number of the piece materials 16 on the surface of a mount 15. The spacer 17 is installed so as to be wound around the outside of the divided winding 11 and the inside of the divided winding 12. At this time, the space between the adjacent strips 16 is used as the duct 14.
ブロック巻線4の間の絶縁部材5には、ダクト14に連
通するダクト18を、巻線の半径方向に貫通して設け
る。このダクト18の形成には、たとえば第3図に部分
的に示してある環状の絶縁板19の表裏面に、適当な間
隔を隔てて複数の片部20を固定したものを使用すると
よい。この隣合う片部19の間の空間がダクト18とし
て利用される。In the insulating member 5 between the block windings 4, a duct 18 communicating with the duct 14 is provided so as to penetrate in the radial direction of the winding. For forming the duct 18, it is preferable to use, for example, an annular insulating plate 19 partially shown in FIG. 3 on the front and back surfaces of which a plurality of pieces 20 are fixed at appropriate intervals. The space between the adjacent pieces 19 is used as the duct 18.
以上の構成において、巻線の内周側および外周側のコー
ナー部には電界が集中することは、従来と同様である
が、図に示すように両分割巻線11,12の周囲を絶縁
紙10によって絶縁することによって、コーナー部を確
実に絶縁している。すなわち絶縁性能は従来構成と同等
である。In the above configuration, the electric field is concentrated on the inner and outer corners of the winding as in the conventional case, but as shown in the figure, the surroundings of both split windings 11 and 12 are covered with insulating paper. By insulating with 10, the corners are reliably insulated. That is, the insulation performance is equivalent to that of the conventional configuration.
一方巻線の層間にはダクト14が、またブロック巻線4
間にはダクト18が形成されてあるので、巻線内には矢
印で示すように各ダクトを経由して、周囲の絶縁油のよ
うな冷却媒体が還流する。この冷却媒体の還流によって
巻線内部に発生する熱による温度上昇はこれをもって確
実に回避されるようになる。On the other hand, the duct 14 is provided between the winding layers, and the block winding 4 is also provided.
Since the duct 18 is formed between them, a cooling medium such as surrounding insulating oil flows back in the winding through each duct as shown by an arrow. This ensures that the temperature rise due to the heat generated inside the winding due to the circulation of the cooling medium can be avoided.
このような温度上昇の低減は巻線の電流密度を大きくし
た設計を可能とするものであるとともに、巻線材料の低
減および機器のコンパクト化をもたらすようになる。Such a reduction in temperature rise enables a design in which the current density of the winding is increased, and also leads to a reduction in winding material and a compact device.
なお図に示す構成ではダクト14を2個所としている
が、分割巻線3内であれば、更に多くのダクトを形成し
てもよいことはもちろんである。In the configuration shown in the figure, two ducts 14 are provided, but it is needless to say that more ducts may be formed within the split winding 3.
(考案の効果) 以上詳述したようにこの考案によれば、高電圧巻線の絶
縁性能を損うことなく、巻線の温度上昇が大巾に低減で
き、しかも巻線材料の低減化ならびに縮小化が可能とな
るといった効果を奏する。(Effect of the Invention) As described in detail above, according to the present invention, the temperature rise of the winding can be greatly reduced without impairing the insulation performance of the high-voltage winding, and the winding material can be reduced. This has the effect of enabling downsizing.
第1図はこの考案の実施例を示す断面図、第2図はダク
トを形成するのに使用するスペーサの斜視図、第3図は
同絶縁部材の部分斜視図、第4図は従来例の断面図、第
5図は変圧器の部分断面図である。 4……ブロック巻線、5……絶縁部材、6,9……絶縁
筒、8……電線、10……絶縁紙、11〜12……分割
巻線、14,18……ダクト、FIG. 1 is a sectional view showing an embodiment of the present invention, FIG. 2 is a perspective view of a spacer used to form a duct, FIG. 3 is a partial perspective view of the same insulating member, and FIG. 4 is a conventional example. A sectional view and FIG. 5 are partial sectional views of the transformer. 4 ... Block winding, 5 ... Insulating member, 6, 9 ... Insulating cylinder, 8 ... Electric wire, 10 ... Insulating paper, 11-12 ... Split winding, 14, 18 ... Duct,
Claims (1)
段に積層してなる高電圧巻線において、各ブロック巻線
をその半径方向に沿って分割して構成し、その内側の分
割巻線と外側の分割巻線にはその各コーナー部を絶縁す
る絶縁筒を設けるとともに、両分割巻線の全周を絶縁紙
によって巻回して絶縁し、また前記両分割巻線の間に位
置する分割巻線には巻線の軸心方向に沿うダクトを設
け、更に前記各ブロック巻線間の絶縁部材には、前記ダ
クトに連通するダクトを、巻線の半径方向に貫通して設
けてなる高電圧巻線。1. A high-voltage winding comprising a plurality of block windings laminated in multiple stages with an insulating member interposed between the block windings, the block windings being divided along the radial direction of the block windings. The wire and the outer split winding are provided with insulating cylinders that insulate the respective corners, and the entire circumference of both split windings is wrapped with insulating paper to insulate them, and is located between the split windings. The divided winding is provided with a duct along the axial direction of the winding, and the insulating member between the block windings is provided with a duct communicating with the duct in a radial direction of the winding. High voltage winding.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP13200687U JPH0625934Y2 (en) | 1987-08-29 | 1987-08-29 | High voltage winding |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP13200687U JPH0625934Y2 (en) | 1987-08-29 | 1987-08-29 | High voltage winding |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS6437013U JPS6437013U (en) | 1989-03-06 |
JPH0625934Y2 true JPH0625934Y2 (en) | 1994-07-06 |
Family
ID=31388582
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP13200687U Expired - Lifetime JPH0625934Y2 (en) | 1987-08-29 | 1987-08-29 | High voltage winding |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH0625934Y2 (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2003077737A (en) * | 2001-09-06 | 2003-03-14 | Mitsubishi Electric Corp | Winding of electric equipment |
-
1987
- 1987-08-29 JP JP13200687U patent/JPH0625934Y2/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
JPS6437013U (en) | 1989-03-06 |
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