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1. 发明申请

WO1998029788A1 METHOD AND DEVICE FOR AUTOMATICALLY SWITCHING THREE-PHASE VOLTAGE FOR POWER SAVING TRANSFORMER 审中-公开
标题翻译：用于自动切换节电变压器三相电压的方法和装置
公开(公告)号：WO1998029788A1
公开(公告)日：1998-07-09
申请号：PCT/JP1997001553
申请日：1997-05-06
申请人： AIKOH ELECTRIC CORPORATION , SHIMAZU, Chiyuki , YABASE, Koji
发明人： AIKOH ELECTRIC CORPORATION
IPC分类号： G05F01/20
CPC分类号： H01F29/02 , G05F1/20
摘要： In a three-phase three-wire or four-wire auto-transformer, one set or a plurality of sets of main coils connected to an input terminal are interwound around three-phase core type cores by three circuits and a plurality of sets of exciting coils, which are wound around the cores and connected in series with each other, are connected between the end sections of the main coils of individual circuits through a plurality of combination connections. At the same time, a plurality of sets of electronic switches which are turned on/off depending upon the voltage value of a voltage sensor connected to an input or output terminal are provided between the above-mentioned end sections are provided between the above-mentioned end sections and between individual exciting coils and one set or a plurality of sets of electronic switches between the end sections and between individual exciting coils are connected or disconnected by turning on/off the switches in steps for every same phase-to-phase potential or every same current of the switches so that the circuit can be switched to a circuit which uninterruptively regulates the output voltage of the transformer. Therefore, the output voltage of the transformer can be regulated to within a prescribed set range and the load of the transformer is not affected when the input voltage rises or drops, because the rise or drop is automatically detected and the circuit is switched.
摘要翻译：在三相三线或四线自动变压器中，连接到输入端的一组或多组主线圈通过三个电路和多组令人兴奋的三组磁芯型磁芯相互缠绕通过多个组合连接将卷绕在芯上并彼此串联连接的线圈通过各个电路的主线圈的端部连接。同时，在上述端部之间设置多个根据连接到输入或输出端子的电压传感器的电压值导通/断开的电子开关组，端部和各个励磁线圈之间以及在端部之间和各个励磁线圈之间的一组或多组电子开关之间的连接或断开通过为每个相同的相间电位而逐步接通/断开开关，或每个相同的开关电流，使得电路可以切换到不间断地调节变压器的输出电压的电路。因此，当输入电压上升或下降时，变压器的输出电压可以调节到规定的设定范围内，并且变压器的负载不受影响，因为自动检测到上升或下降并且电路被切换。

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