JPS6013287B2 - split winding transformer - Google Patents
split winding transformerInfo
- Publication number
- JPS6013287B2 JPS6013287B2 JP53107626A JP10762678A JPS6013287B2 JP S6013287 B2 JPS6013287 B2 JP S6013287B2 JP 53107626 A JP53107626 A JP 53107626A JP 10762678 A JP10762678 A JP 10762678A JP S6013287 B2 JPS6013287 B2 JP S6013287B2
- Authority
- JP
- Japan
- Prior art keywords
- coil
- voltage coils
- low
- coils
- tap
- 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
Links
Landscapes
- Coils Of Transformers For General Uses (AREA)
Description
【発明の詳細な説明】 本発明は、分割巻線変圧器の改良に関するものである。[Detailed description of the invention] The present invention relates to improvements in split-winding transformers.
一般に分割巻線変圧器は、例えば鉄心に同じ状に配置さ
れる内側のコイルを低圧コイル、外側に配置されるコイ
ルを高圧コイルとする場合、従来においては第１図に示
すように、鉄心１に２個の低圧コイル１１，ｉ２を同心
状に配置していた。そして、これら低圧コイル１１，１
２にそれぞれ相対するように各高圧コイルｈｌ，ｈ２が
配置され、負荷時タップ切換装置（図示せず）に接続さ
れるタップコイル部２は高圧コイルｈｌ，ｈ２の絶縁階
級の低い中性点側Ｎに設けられている。Ｌは高圧コイル
ｈｌ，ｈ２の線路側である。このようなコイルの配置構
成では、大容量変圧器になると、これらのコイルは電流
容量を満たすため並列導体で構成されることになる。In general, in a split winding transformer, for example, when the inner coil arranged in the same shape on the iron core is used as a low voltage coil and the outer coil arranged in the same manner as a high voltage coil, conventionally, as shown in FIG. Two low voltage coils 11 and i2 were arranged concentrically. And these low voltage coils 11,1
The high-voltage coils hl and h2 are arranged so as to face the high-voltage coils hl and h2, respectively, and the tap coil section 2 connected to the on-load tap switching device (not shown) is located on the neutral point side of the high-voltage coils hl and h2, which have a lower insulation class. It is provided in N. L is the line side of the high voltage coils hl and h2. In this arrangement of coils, in the case of a large-capacity transformer, these coils will be constructed of parallel conductors in order to satisfy the current capacity.
しかしながら、転位によって循環電流を防止することが
できるように、低圧コイル１１と高圧コイルｈｌとの間
及び低圧コイル１２と高圧コイルｈ２間で、それぞれ第
２図イおよび口に示す如く磁束分布を対称となるように
アンペアターンを調整していても、タップ切換えによっ
てタップコイル部２のアンペアターンが変化するため、
コイル中での磁束分布が常に対称にはならない。このた
め、並列導体中に流れる循環電流を防止することができ
ず、漂遊負荷損の増大、コイル温度上昇が増大すると言
う欠点がある。本発明の目的は、いかなる使用状態にお
いても各コイル中における磁束分布が対称となるように
して並列導体中に流れる循環電流を防止できるようにし
た分割巻線変圧器を提供することにある。However, in order to prevent circulating current due to dislocation, the magnetic flux distribution is symmetrical between the low voltage coil 11 and the high voltage coil hl and between the low voltage coil 12 and the high voltage coil h2, as shown in Figure 2 A and 2, respectively. Even if the ampere turns are adjusted so that
The magnetic flux distribution in the coil is not always symmetrical. Therefore, it is not possible to prevent circulating current flowing through the parallel conductors, resulting in an increase in stray load loss and a rise in coil temperature. SUMMARY OF THE INVENTION An object of the present invention is to provide a split-winding transformer in which the magnetic flux distribution in each coil is symmetrical under any operating conditions, thereby preventing circulating currents flowing in parallel conductors.
本発明は、低圧コイル１１あるいは１２のみの使用時の
場合でも、高圧コイルｂｌ，ｈ２のタップコイル部２が
対称となるように配置すれば、いかなる使用状態におい
ても各コイル中での磁束分布は対称となり、並列導体中
に流れる循環電流を防止することができるのを利用する
ため、低圧コイル１１，１２及び高圧コイルｈｌ，ｈ２
を鉄心に同心状に配置する際、低圧コイルの１個を高圧
コイルの内側に配置するとともに他の１個を高圧コイル
の外側に配置し鉄心の軸方向において対称となるように
したものである。以下本発明の分割巻線変圧器の−実施
例を従来と同部品は同符号で示し第３図により説明する
。In the present invention, even when only the low voltage coils 11 or 12 are used, if the tap coil portions 2 of the high voltage coils bl and h2 are arranged symmetrically, the magnetic flux distribution in each coil can be maintained in any state of use. In order to take advantage of the symmetry and the ability to prevent circulating current flowing in the parallel conductors, the low voltage coils 11, 12 and the high voltage coils hl, h2
When arranging them concentrically around the iron core, one of the low-voltage coils is placed inside the high-voltage coil and the other one is placed outside the high-voltage coil so that they are symmetrical in the axial direction of the iron core. . An embodiment of a split winding transformer according to the present invention will be described below with reference to FIG.
高圧コイルｈｌ，ｈ２は同軸上に配置され並列に接続さ
れ、負荷時タップ切換変圧器（図示せず）に接続される
タップコイル部２は高圧コイルｈｌ，ｈ２の絶縁階級の
低い中性点側Ｎに設けられている。高圧コイルｈｌ，ｈ
２の内側には低圧コイル１１が配置され、外側には低圧
コイル１２が配置されている。上記のようなコイル配置
構成にすれば、低圧コイル１１と低圧コイルｈｌ及びｈ
２間ならびに低圧コイル１２と高圧コイルｈｌ及びｈ２
間においてアンペアターン分布を対称にして置けば、例
えば、低圧コイル１１または１２のみ使用される場合ま
たは低圧コイル１１及び１２を同時に使用する場合でも
、第３図に示すように中央線ｎーイより見て低圧コイル
１１，】２は上下対称となる。The high voltage coils hl and h2 are arranged coaxially and connected in parallel, and the tap coil section 2 connected to the on-load tap switching transformer (not shown) is on the neutral point side of the high voltage coils hl and h2, which has a lower insulation class. It is provided in N. High voltage coil hl,h
A low voltage coil 11 is placed inside the 2, and a low voltage coil 12 is placed outside. With the above coil arrangement configuration, the low voltage coil 11 and the low voltage coils hl and h
2 and between the low voltage coil 12 and the high voltage coils hl and h2
For example, if only the low voltage coil 11 or 12 is used, or if the low voltage coils 11 and 12 are used simultaneously, if the ampere-turn distribution is made symmetrical between them, as shown in FIG. When viewed from above, the low voltage coils 11, ]2 are vertically symmetrical.
また、高圧コイルｈｌ，ｂ２は並列接続されることから
全体構成の高圧コイルｈｌ＋ｈ２としてみれば、タップ
切換によってタップコイル部２のアンペアターンが変化
しても磁束分布は上下対称となる。従って、各コイルが
並列導体で構成されていても、転位を行なうことで並列
導体中に流れる循環電流を防止することができる。この
ように本実施例の変圧器は構成されているので、いかな
る使用状態においても各コイルの磁束分布は上下対称と
なるから、並例導体中に流れる循環電流を転位により防
止できる。Further, since the high voltage coils hl and b2 are connected in parallel, if the overall configuration is considered as the high voltage coil hl+h2, even if the ampere turns of the tap coil section 2 changes due to tap switching, the magnetic flux distribution will be vertically symmetrical. Therefore, even if each coil is composed of parallel conductors, the circulating current flowing in the parallel conductors can be prevented by performing the transposition. Since the transformer of this embodiment is constructed in this manner, the magnetic flux distribution of each coil is vertically symmetrical in any state of use, so that circulating current flowing in the ordinary conductor can be prevented by dislocation.
従って、変圧器の各コイルの漂遊負荷損を減少させ、し
かもその温度上昇を低く抑えることができる。以上記述
した如く本発明の分割巻線変圧器によれば、タップ切換
の場合等いかなる使用状態においても各コイル中での磁
束分布が対称となるようにしたことにより並列導体中に
流れる循環電流を防止することができる効果を有するも
のである。Therefore, the stray load loss of each coil of the transformer can be reduced, and the temperature rise can be kept low. As described above, according to the split winding transformer of the present invention, the magnetic flux distribution in each coil is symmetrical in any usage state such as when changing taps, thereby reducing the circulating current flowing in the parallel conductors. This has the effect of preventing the above.
第１図は従釆の分割巻線変圧器の巻線配置図、第２図イ
，口はそれぞれ第１図の変圧器の最大タップ時の相対す
る１組のコイル使用時における磁束分布図、第３図は本
発明の分割巻線変圧器の一実施例を示す巻線配置図であ
る。
１……鉄′０、２……タップコイル部、ｈｌ，ｈ２・・
・・・・高圧コイル、１１，１２・・・・・・低圧コイ
ル、Ｌ…・・・線路側、Ｎ・・・・・・中性点側。
第１図第２図
第３図Figure 1 is a winding arrangement diagram of a secondary winding transformer, Figure 2 A is a magnetic flux distribution diagram when a pair of opposing coils are used at the maximum tap of the transformer in Figure 1, respectively. FIG. 3 is a winding layout diagram showing an embodiment of the split winding transformer of the present invention. 1... Iron'0, 2... Tap coil part, hl, h2...
...High voltage coil, 11,12...Low voltage coil, L...Line side, N...Neutral point side. Figure 1 Figure 2 Figure 3
Claims (1)
または電源に接続される複数個の低圧コイルと、上記低
圧コイルと同数から形成して同心状に配置され、かつ電
源または負荷に並列接続されるとともに、それぞれ負荷
時タツプ切換装置に接続されるタツプコイル部を中性点
側に設けた高圧コイルとを備えたものにおいて、上記各
低圧コイルはタツプコイル部を有する各高圧コイルを挟
むように内周側と外周側に配設したことを特徴とする分
割巻線変圧器。1. An iron core, a plurality of low-voltage coils arranged concentrically on the iron core and connected to a load or a power source, and a plurality of low-voltage coils formed from the same number of low-voltage coils as the above-mentioned low-voltage coils, arranged concentrically and connected in parallel to the power source or load. and high-voltage coils each having a tap coil section connected to the load tap switching device on the neutral point side, each of the low-voltage coils having an inner periphery so as to sandwich each high-voltage coil having the tap coil section. A split winding transformer characterized by being arranged on the side and the outer circumferential side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP53107626A JPS6013287B2 (en) | 1978-09-04 | 1978-09-04 | split winding transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP53107626A JPS6013287B2 (en) | 1978-09-04 | 1978-09-04 | split winding transformer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5536914A JPS5536914A (en) | 1980-03-14 |
| JPS6013287B2 true JPS6013287B2 (en) | 1985-04-06 |
Family
ID=14463949
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP53107626A Expired JPS6013287B2 (en) | 1978-09-04 | 1978-09-04 | split winding transformer |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6013287B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103065776A (en) * | 2012-12-27 | 2013-04-24 | 吴江市变压器厂有限公司 | Winding structure of transformer |
-
1978
- 1978-09-04 JP JP53107626A patent/JPS6013287B2/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5536914A (en) | 1980-03-14 |
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