JPS5951731B2 - transformer - Google Patents
transformerInfo
- Publication number
- JPS5951731B2 JPS5951731B2 JP55037595A JP3759580A JPS5951731B2 JP S5951731 B2 JPS5951731 B2 JP S5951731B2 JP 55037595 A JP55037595 A JP 55037595A JP 3759580 A JP3759580 A JP 3759580A JP S5951731 B2 JPS5951731 B2 JP S5951731B2
- Authority
- JP
- Japan
- Prior art keywords
- phase
- winding
- transformer
- common
- 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.)
- Expired
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F30/00—Fixed transformers not covered by group H01F19/00
- H01F30/06—Fixed transformers not covered by group H01F19/00 characterised by the structure
- H01F30/12—Two-phase, three-phase or polyphase transformers
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Ac-Ac Conversion (AREA)
- Coils Of Transformers For General Uses (AREA)
Description
【発明の詳細な説明】
本発明は三相単相の何れにも共用できる変圧器の巻線構
造に関するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a winding structure for a transformer that can be used in common for any three-phase or single-phase transformer.
従来小規模の受電設備には三相電源と単相電源を同時に
得られるようにしたものがありこれらの受電設備では三
相電源用変圧器を単相電源用変圧器を各々必要としてい
た。Conventionally, some small-scale power receiving equipment was able to obtain three-phase power and single-phase power at the same time, and these power receiving equipment required a transformer for three-phase power and a transformer for single-phase power, respectively.
この場合には単相変圧器３台乃至は三相変圧器と単相変
圧器各々１台で。構成されるのが一般的であるので受電
設備の据付面積・重量が大きくなる欠点を有している。
従つて据付面積・重量を低減する目的で１台の三相変圧
器で三相電源と単相電源を同時に得られる三相単相共用
三相変圧器が一部で使用されている。こ・のような三相
単相共用変圧器の中性点は二次巻線の中間より引出され
たものであるからｌ次巻線よりみた巻線位置は巻線と巻
線で異つた位置にある。従つて一端と中性点間に負荷を
取つた場合と他端と中性点間に負荷を取つた場合ではこ
の巻線・配置に起因するインピーダンスの差により電圧
変動率が異なる欠点を有している。又一端と中性点間に
負荷を取つた場合には電圧変動が大きくこれに接続され
る負荷の適正な働きを阻外する欠点を有している。本発
明は前記の欠点を除去したもので共用相の二次巻線を分
割して巻線の一端と中性点の間の磁気的配置を等価な位
置にしたものである。In this case, three single-phase transformers or one three-phase transformer and one single-phase transformer. Since this is a common configuration, it has the disadvantage that the installation area and weight of the power receiving equipment are large.
Therefore, in order to reduce the installation area and weight, three-phase single-phase common three-phase transformers are used in some cases, which can provide three-phase power and single-phase power at the same time with one three-phase transformer. The neutral point of a three-phase, single-phase shared transformer like this one is drawn out from the middle of the secondary winding, so the winding position seen from the primary winding is at a different position between the two windings. It is in. Therefore, when a load is applied between one end and the neutral point, and when a load is applied between the other end and the neutral point, the voltage fluctuation rate has a different rate due to the difference in impedance caused by the winding and arrangement. ing. Furthermore, when a load is connected between one end and the neutral point, voltage fluctuations are large, which prevents the load connected to the load from functioning properly. The present invention eliminates the above drawbacks by dividing the secondary winding of the common phase so that the magnetic arrangement between one end of the winding and the neutral point is equivalent.
次に本発明による三相単相共用相の二次巻線構造を第１
図に示す。Next, the secondary winding structure of the three-phase single-phase common phase according to the present invention is
As shown in the figure.
第１図に於いて１、２、３、４は共用相の二次巻線を構
成する巻線で１と４、０２と３は直列に接続されて巻線
υ−σ及び巻線υ−σを構成する。又５は１次巻線であ
る。このように共用相の巻線を構成すると１次巻線と巻
線υ一σ間及び巻線υ一σ間の磁気的位置が等価となり
インピーダンスが等しくなる。従つて端子υ一σ間とυ
−σ間に負荷を取つても従来のような電圧変動の不平衡
は生じなく同一の電圧変動となり電圧特性を改善するこ
とができる。第１図は二次巻線を軸方向に２分割したが
それとほぼ同様な効果は第２図で示す方法でも得られる
。In Fig. 1, 1, 2, 3, and 4 are windings that constitute the secondary winding of the common phase, and 1 and 4, 02 and 3 are connected in series, and winding υ-σ and winding υ- Construct σ. Further, 5 is a primary winding. When the windings of the common phase are configured in this way, the magnetic positions between the primary winding and the windings υ and σ and between the windings υ and σ are equivalent, and the impedance becomes equal. Therefore, between terminals υ and σ and υ
Even when a load is applied between -σ, there is no imbalance in voltage fluctuations as in the conventional case, and the voltage fluctuations remain the same, making it possible to improve voltage characteristics. Although the secondary winding is divided into two in the axial direction in FIG. 1, substantially the same effect can be obtained by the method shown in FIG.
第２図に於いて６、７、８は共用相の二次巻線を構成す
る巻線で６と８は直列に接続されて巻線υ−σを構成し
６と８で挟まれた部分７が巻線υ−σを構成する。この
ように構成すると１次巻線とυ、一σ巻線間及び１次巻
線とυ一σ巻線間の磁気的位置が等価となりインピーダ
ンスが等しくなる。以上説明したように本発明によれば
三相単相共用相の２つの巻線（υ−σ、υ−σ）と１次
巻線間の磁気的位置が等価となり端子υ−σ間とυ一σ
間の電圧変動率を同一とすることができる。In Figure 2, 6, 7, and 8 are windings that constitute the secondary winding of the common phase, and 6 and 8 are connected in series to constitute winding υ-σ, and the part sandwiched between 6 and 8. 7 constitutes the winding υ-σ. With this configuration, the magnetic positions between the primary winding and the υ and 1σ windings and between the primary winding and the υ1σ winding are equivalent, resulting in equal impedance. As explained above, according to the present invention, the magnetic positions between the two windings (υ-σ, υ-σ) of the three-phase single-phase common phase and the primary winding are equivalent, and the magnetic positions between the terminals υ-σ and υ One sigma
The voltage fluctuation rate between the two can be made the same.
第１図は本発明の一実施例を示す共用相二次巻線説明図
、第２図は他の実施例を示す説明図である。
１、２、３、４、６、７、８・・・二次巻線、５ ・・
・一次巻線。FIG. 1 is an explanatory diagram of a shared phase secondary winding showing one embodiment of the present invention, and FIG. 2 is an explanatory diagram showing another embodiment. 1, 2, 3, 4, 6, 7, 8...Secondary winding, 5...
・Primary winding.
Claims (1)
しその共用相の二次巻線を分割巻線としたことを特徴と
する変圧器。1. A transformer characterized in that one of the three phases of the three-phase transformer is a three-phase single-phase common phase, and the secondary winding of the common phase is a split winding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP55037595A JPS5951731B2 (en) | 1980-03-26 | 1980-03-26 | transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP55037595A JPS5951731B2 (en) | 1980-03-26 | 1980-03-26 | transformer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS56134723A JPS56134723A (en) | 1981-10-21 |
| JPS5951731B2 true JPS5951731B2 (en) | 1984-12-15 |
Family
ID=12501901
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP55037595A Expired JPS5951731B2 (en) | 1980-03-26 | 1980-03-26 | transformer |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5951731B2 (en) |
-
1980
- 1980-03-26 JP JP55037595A patent/JPS5951731B2/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS56134723A (en) | 1981-10-21 |
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