JPH0192115U

JPH0192115U -

Info

Publication number: JPH0192115U
Application number: JP18693987U
Authority: JP
Priority date: 1987-12-08
Filing date: 1987-12-08
Publication date: 1989-06-16
Also published as: JPH0414907Y2

Description

[Brief explanation of drawings]

第１図は、本考案の一実施例の結線図、第２図
は、第１図における整流装置用変圧器の主要部の
構造を示す斜視図、第３図は、第２図における整
流装置用変圧器の主要部を示す平面図、第４図は
、従来の整流用変圧器の巻線接続状態を示す図、
第５図は、第４図における整流装置用変圧器の主
要部の構造を示す斜視図、第６図は、第５図にお
ける整流装置用変圧器の主要部を示す平面図であ
る。１０……三相交流電源、１１……制御整流素子
、１２……整流装置用変圧器、１３……一次巻線
、１４……二次巻線、１５……整流素子、１６ｕ
，１６ｖ，１６ｗ……ブスバ、１７……主ブスバ
、１８……負荷、１９……中性点引出線、２０ｕ
，２０ｖ，２０ｗ……短絡ブスバ、２１……中性
点用ブスバ、２２……鉄心、３０……三相交流電
源、３１……制御整流素子、３２……整流装置用
変圧器、３３……一次巻線、３４……二次巻線、
３５……整流素子、３６ｕ，３６ｖ，３６ｗ……
ブスバ、３７……主ブスバ、３８……負荷、３９
……中性点引出線、４０ｕ，４０ｖ，４０ｗ……
短絡ブスバ、４１……中性点用ブスバ、４２……
鉄心。 Fig. 1 is a wiring diagram of an embodiment of the present invention, Fig. 2 is a perspective view showing the structure of the main part of the rectifier transformer in Fig. 1, and Fig. 3 is the rectifier in Fig. 2. FIG. 4 is a plan view showing the main parts of a conventional rectifying transformer;
5 is a perspective view showing the structure of the main part of the rectifier transformer in FIG. 4, and FIG. 6 is a plan view showing the main part of the rectifier transformer in FIG. 5. 10... Three-phase AC power supply, 11... Control rectifier, 12... Transformer for rectifier, 13... Primary winding, 14... Secondary winding, 15... Rectifier, 16u
, 16v, 16w...Busbar, 17...Main busbar, 18...Load, 19...Neutral point leader line, 20u
, 20v, 20w... short circuit bus bar, 21... neutral point bus bar, 22... iron core, 30... three-phase AC power supply, 31... control rectifier element, 32... transformer for rectifier, 33... Primary winding, 34...Secondary winding,
35... Rectifying element, 36u, 36v, 36w...
Bus bar, 37...Main bus bar, 38...Load, 39
...Neutral point leader line, 40u, 40v, 40w...
Short-circuit busbar, 41...Busbar for neutral point, 42...
Iron core.

Claims

[Claims for Utility Model Registration] 1. It has a multi-phase primary winding and a secondary winding divided into multiple parts for each phase, and the output of each of these secondary windings is fed to a rectifier to generate low voltage and high voltage. In a transformer for a rectifier for forming a direct current output, the neutral point lead wires provided in each of the plurality of divided secondary windings are taken out one by one for each phase and connected to each phase separately. Provide the same number of shorting busbars as the number of divisions of the secondary windings for each phase, connect these shorting busbars together to output one pole of DC, and each of the divided secondary windings. A transformer for a rectifier, characterized in that an output terminal of the transformer is connected to a rectifier. 2. The short-circuiting bus bar is provided in the vicinity of the secondary windings of each phase and in a direction perpendicular to the winding axes of these secondary windings, as set forth in claim 1 of the utility model registration claim. transformers for rectifiers. 3. The transformer for a rectifier according to claim 1 or 2, characterized in that the polyphase primary winding is provided with a controlled rectifier element.