JPH042015U

JPH042015U -

Info

Publication number: JPH042015U
Application number: JP4183990U
Authority: JP
Priority date: 1990-04-19
Filing date: 1990-04-19
Publication date: 1992-01-09
Anticipated expiration: 2005-04-19
Also published as: JPH087613Y2

Description

[Brief explanation of the drawing]

第１図は本考案の実施例を示す縦断面図、第２
図、第３図及び第４図はそれぞれ第１図の−
線断面図、−線断面図及び−線断面図、
第５図は本考案の変圧器装置において１次側及び
２次側を共にＶ結線とした場合の接続及び電圧ベ
クトルを示す線図、第６図は本考案の変圧器装置
において１次側をＶ結線とし、２次側の中点どう
しを共通接続した場合の接続及び電圧ベクトルを
示す線図、第７図は本考案の変圧器装置において
１次側及び２次側を共にＴ結線とした場合の接続
及び電圧ベクトルを示す線図、第８図は第７図に
おいて２次側の中性点から端子を引出した結線及
び電圧ベクトルを示す線図、第９図は本考案に係
わる変圧器装置において、１次側をＴ結線とし、
２次側の中点どうしを共通に接続した場合の接続
及び電圧ベクトルを示す線図、第１０図は従来例
を示す概略縦断面図、第１１図は第１０図の
−線断面図、第１２図は他の従来例を示す概
略縦断面図、第１３図は第１２図の−線
断面図である。１……第１の単相変圧器本体、２……第２の単
相変圧器本体、３……タンク、１ａ１……第１の
単相変圧器本体の１次巻線、１ａ２……第１の単
相変圧器本体の２次巻線、２ａ１……第２の単相
変圧器本体の１次巻線、２ａ２……第２の単相変
圧器本体の２次巻線、１ｄ……第１の単相変圧器
本体のオイルダクト、２ｄ……第２の単相変圧器
本体のオイルダクト。 Fig. 1 is a vertical sectional view showing an embodiment of the present invention;
Figures 3 and 4 are - of Figure 1, respectively.
Line sectional view, - line sectional view and - line sectional view,
Fig. 5 is a diagram showing connections and voltage vectors when both the primary and secondary sides are V-connected in the transformer device of the present invention, and Fig. 6 is a diagram showing the connections and voltage vectors when the primary side and the secondary side are both V-connected in the transformer device of the present invention. Figure 7 is a diagram showing the connection and voltage vector when the midpoints of the secondary sides are connected in common with V-connection, and the transformer device of the present invention has T-connection on both the primary and secondary sides. Fig. 8 is a diagram showing the connections and voltage vectors in which the terminal is drawn out from the neutral point on the secondary side in Fig. 7; Fig. 9 is a diagram showing the connections and voltage vectors of the transformer according to the present invention. In the device, the primary side is T-connected,
A line diagram showing connections and voltage vectors when the midpoints of the secondary side are connected in common, FIG. 10 is a schematic vertical cross-sectional view showing a conventional example, FIG. 11 is a cross-sectional view taken along the - line in FIG. FIG. 12 is a schematic vertical sectional view showing another conventional example, and FIG. 13 is a sectional view taken along the line -- in FIG. 12. DESCRIPTION OF SYMBOLS 1...First single-phase transformer main body, 2...Second single-phase transformer main body, 3...Tank, 1a1...Primary winding of first single-phase transformer main body, 1a2...Th 1 secondary winding of the single-phase transformer main body, 2a1...primary winding of the second single-phase transformer main body, 2a2...secondary winding of the second single-phase transformer main body, 1d... Oil duct of the first single-phase transformer main body, 2d...Oil duct of the second single-phase transformer main body.

Claims

[Claims for Utility Model Registration] (1) First and second single-phase transformer bodies are stacked in two layers with the first single-phase transformer body facing down to form a single cylindrical tank. In the transformer device housed in the transformer device, the ratio of the capacity of the first single-phase transformer body disposed below and the capacity of the second single-phase transformer body disposed above is set to be greater than 1, A transformer device, wherein the first single-phase transformer main body has an outer iron structure, and the second single-phase transformer main body has an inner iron structure. (2) A terminal connected to one end of the primary winding of the first single-phase transformer body, a terminal connected to one end of the primary winding of the second single-phase transformer body, and the first single-phase transformer The other end of the primary winding of the transformer body and the terminal commonly connected to the other end of the primary winding of the second single-phase transformer body are pulled out, 2. The transformer device according to claim 1, wherein the next side and the primary side of the second single-phase transformer main body are V-connected. (3) The induced voltage in the secondary winding of the first single-phase transformer body is set to be equal to the induced voltage in the secondary winding of the second single-phase transformer body, and A terminal connected to one end of the secondary winding of the phase transformer main body, and a terminal connected to one end of the secondary winding of the second single phase transformer main body.
A terminal connected to one end of the secondary winding, the other end of the secondary winding of the first single-phase transformer main body, and the other end of the secondary winding of the second single-phase transformer main body are commonly connected. 3. The secondary side of the first single-phase transformer main body and the secondary side of the second single-phase transformer main body are V-connected by pulling out the terminals. Transformer equipment. (4) The transformer device according to claim 3, wherein the terminal is drawn out from the middle point of the secondary winding of the first single-phase transformer main body. (5) Terminals are drawn out from one end and the other end of the secondary winding of the first single-phase transformer body, respectively, and terminals are drawn out from one end and the other end of the secondary winding of the second single-phase transformer body, respectively. is drawn out, and the midpoint of the secondary winding of the first single-phase transformer main body and the midpoint of the secondary winding of the second single-phase transformer main body are commonly connected. The transformer device according to claim 2. (6) Terminals are drawn out from one end and the other end of the secondary winding of the first single-phase transformer body and one end of the primary winding of the second single-phase transformer body, and The other end of the primary winding of the phase transformer main body is connected to the midpoint of the primary winding of the first single-phase transformer main body, so that the primary sides of the first and second single-phase transformer main bodies are The transformer device according to claim 1, wherein the transformer device is T-connected. (7) The ratio of the induced voltage in the secondary winding of the first single-phase transformer body and the induced voltage in the secondary winding of the second single-phase transformer body is set to be 2:√3. , terminals are drawn out from one end and the other end of the secondary winding of the first single-phase transformer main body, and one end of the secondary winding of the second single-phase transformer main body, and the second
The other end of the secondary winding of the single-phase transformer main body is connected to the midpoint of the secondary winding of the first single-phase transformer main body,
7. The transformer device according to claim 6, wherein the secondary sides of the first and second single-phase transformer bodies are T-connected. (8) The transformer device according to claim 7, wherein the terminal is drawn out from the middle point of the secondary winding of the first single-phase transformer main body. (9) The transformer device according to claim 7, wherein the tap is drawn out from a point where the number of turns from one end of the secondary winding of the second single-phase transformer body is 2/3. (10) Terminals are drawn out from one end and the other end of the secondary winding of the first single-phase transformer main body, and
Terminals are drawn out from one end and the other end of the secondary winding of the second single-phase transformer body, respectively, and connect the middle point of the secondary winding of the first single-phase transformer body to the second single-phase transformer body. 7. The transformer device according to claim 6, wherein the midpoints of the secondary windings of the transformer main body are commonly connected. (11) The primary winding of the first single-phase transformer body and the primary winding of the second single-phase transformer body are connected in parallel, and the secondary winding of the first single-phase transformer body 2. The transformer device according to claim 1, wherein the secondary winding of the second single-phase transformer main body is connected in parallel or in series. (12) The oil duct provided within the winding of the first single-phase transformer main body and the oil duct provided within the winding of the second single-phase transformer main body are arranged with their positions shifted in the circumferential direction. Claim 1 characterized in that
12. The transformer device according to any one of items 1 to 11.