JPH0482823U

JPH0482823U -

Info

Publication number: JPH0482823U
Application number: JP12534890U
Authority: JP
Priority date: 1990-11-28
Filing date: 1990-11-28
Publication date: 1992-07-20
Anticipated expiration: 2005-11-28
Also published as: JP2545469Y2

Description

[Brief explanation of drawings]

第１図は本考案の実施例における巻線間の接続
を示す接続図、第２図は本考案の実施例における
変圧器本体の構成を示す概略正面図、第３図は第
２図の−線に沿つた横断面図、第４図は本考
案の他の実施例における巻線間の接続を示す接続
図、第５図は第４図の電圧ベクトル図である。Ｍ１……第１の変圧器本体、Ｍ２……第２の変
圧器本体、Ｉａ１……第１の変圧器本体の第１脚
の鉄心、Ｉｂ１……第１の変圧器本体の第２脚の
鉄心、Ｉａ２……第２の変圧器本体の第１脚の鉄
心、Ｉｂ２……第２の変圧器本体の第２脚の鉄心
、Ｃ１１ａ……第１の変圧器本体の第１脚側１次
巻線、Ｃ１２ａ……第１の変圧器本体の第１脚側
２巻線、Ｃ１１ｂ……第１の変圧器本体の第２脚
側１次巻線、Ｃ１２ｂ……第１の変圧器本体の第
２脚側２次巻線、Ｃ２１ａ……第２の変圧器本体
の第１脚側１次巻線、Ｃ２２ａ……第２の変圧器
本体の第１脚側２次巻線、Ｃ２１ｂ……第２の変
圧器本体の第２脚側１次巻線、Ｃ２２ｂ……第２
の変圧器本体の第２脚側２次巻線、Ｕ１，Ｖ１，
Ｗ１……１次側線路端子、Ｕ２１，Ｖ２１，Ｗ２
１……第１の負荷系統の線路端子、Ｕ２２，Ｖ２
２，Ｗ２２……第２の負荷系統の線路端子。 Fig. 1 is a connection diagram showing connections between windings in an embodiment of the present invention, Fig. 2 is a schematic front view showing the configuration of the transformer main body in an embodiment of the present invention, and Fig. 3 is the same as that shown in Fig. 2. 4 is a connection diagram showing connections between windings in another embodiment of the present invention, and FIG. 5 is a voltage vector diagram of FIG. 4. M1...First transformer main body, M2...Second transformer main body, Ia1...Iron core of the first leg of the first transformer main body, Ib1...Second leg of the first transformer main body Iron core, Ia2...Iron core of the first leg of the second transformer main body, Ib2...Iron core of the second leg of the second transformer main body, C11a...First leg side primary of the first transformer main body Winding, C12a...2nd winding on the first leg side of the first transformer body, C11b...primary winding on the second leg side of the first transformer body, C12b...2nd winding on the first leg side of the first transformer body Second leg side secondary winding, C21a...First leg side primary winding of the second transformer main body, C22a...First leg side secondary winding of the second transformer main body, C21b... The second leg side primary winding of the second transformer main body, C22b...second
The secondary winding on the second leg side of the transformer body, U1, V1,
W1...Primary side line terminal, U21, V21, W2
1...Line terminal of the first load system, U22, V2
2, W22...Line terminal of the second load system.

Claims

[Scope of claims for utility model registration] (1) 2 having a first leg Ia1 and a second leg Ib1
First transformer main body M1 and first leg Ia with leg iron core structure
2 and a second leg Ib2 having a two-leg iron core structure.
a first leg Ia of the iron core of the first transformer main body M1;
1 has a first leg side primary winding C11a and a first leg side secondary winding C12a, and the second leg Ib1 has a second leg side primary winding C11b and a second leg side secondary winding C12.
b are respectively wound to form the first leg side primary winding C.
11a and the number of turns of the second leg side primary winding C11b are set equal, and the first leg Ia of the iron core of the second transformer main body M2
2, the first leg side primary winding C21a and the first leg side secondary winding C22a are attached to the second leg Ib2, and the second leg side 1 is attached to the second leg Ib2.
The next winding C21b and the second leg side secondary winding C22b are respectively wound, and the first leg side primary winding C2
1a and the number of turns of the second leg side primary winding C21b are set equal, and the first leg side primary winding C1 of the first transformer main body
1a and the second leg side primary winding C11b are connected in parallel, and the first leg side primary winding C2 of the second transformer main body
1a and the second leg side primary winding C21b are connected in parallel, the primary sides of the first transformer main body M1 and the second transformer main body M2 are V-connected, and the Secondary winding C12a
, C12b and the second transformer main body M2
The secondary winding C12a of the first transformer main body M1 is connected to one of the secondary windings C22a and C22b of the transformer main body M1 and connected to the first load system.
, C12b and the second transformer main body M2
A composite transformer characterized in that the other of the secondary windings C22a and C22b is connected to a second load system. (2) Secondary winding C1 of the first transformer main body M1
2a, C12b and one of the secondary windings C22a, C22b of the second transformer main body M2 are at V
connected to the secondary winding C12a of the first transformer main body M1.
, C12b and the second transformer main body M2
The secondary winding C12a of the first transformer main body M1 is V-connected to the other of the secondary windings C22a and C22b, and the secondary winding C12a of the first transformer main body M1
, C12b, and the midpoint terminal is grounded as a neutral terminal, and the midpoint terminal is pulled out from the midpoint of the other secondary winding of the second transformer main body M2. 2. The composite transformer according to claim 1, wherein the neutral point terminal is grounded as a neutral point terminal.