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1. 发明申请

US20090097173A1 INCOMING CURRENT SUPPRESSION DEVICE 有权
标题翻译：采用电流抑制装置
公开(公告)号：US20090097173A1
公开(公告)日：2009-04-16
申请号：US12051498
申请日：2008-03-19
申请人： Sadayuki KINOSHITA , Kenji Kamei , Tomohito Mori , Hiroki Ito
发明人： Sadayuki KINOSHITA , Kenji Kamei , Tomohito Mori , Hiroki Ito
IPC分类号： H02H7/04 , H02H3/08 , H02H3/00
CPC分类号： H02H9/002 , Y10T307/826
摘要： A control unit of an electric power supply system causes, responsive to a closing command signal, a switch corresponding to R phase to be thrown at a timing when a stationary magnetic flux and a residual magnetic flux of R phase are coincident with each other and then subsequently causes other switches corresponding to S phase and T phase to be thrown at a timing which is delayed from a zero point of an alternating voltage of R phase by a predetermined phase angle of 0-30 degrees, such that the difference of the stationary magnetic flux and the residual magnetic flux of each of S phase and T phase is minimum. Therefore, an exciting incoming current which flows into a three-phase transformer at a time of throwing a three-phase breaker provided with interpole capacitors can be suppressed.
摘要翻译：电源系统的控制单元响应于闭合指令信号，在R相的固定磁通和残余磁通量相互一致的时刻引起对应于R相的开关，并且然后随后使得对应于S相和T相的其它开关在从R相的交流电压的零点延迟了0-30度的预定相位角的定时处被抛出，使得固定磁 S相和T相各自的磁通量和残余磁通量最小。因此，可以抑制在设置有极间电容器的三相断路器投入时流入三相变压器的励磁输入电流。

2. 发明申请

US20090134862A1 Transformer Operation Control Apparatus and Method for Suppressing Magnetizing Inrush Current 有权
标题翻译：变压器运行控制装置及抑制磁化冲击电流的方法
公开(公告)号：US20090134862A1
公开(公告)日：2009-05-28
申请号：US12103748
申请日：2008-04-16
申请人： Sadayuki KINOSHITA , Kenji Kamei , Tomohito Mori
发明人： Sadayuki KINOSHITA , Kenji Kamei , Tomohito Mori
IPC分类号： H01F30/12
CPC分类号： H02H9/002 , Y10T307/76
摘要： A control portion 80 for a breaker 10 causes the breaker 10 to apply a current of a first apply phase (R phase) at a timing where a residual flux of R phase agrees with a steady magnetic flux. Thereafter, the control portion 80 determines whether or not the current measured by current measuring portions 40R, 40S, 40T exceeds a threshold value. When the measured current does not exceed the threshold value, the control portion 80 causes the breaker 10 to apply currents of the other two phases (S and T phases) at a timing where a voltage of R phase becomes zero. When the measured current exceeds the threshold value, the control portion 80 causes the breaker 10 to once shut off the current of R phase and to apply again the current of R phase.
摘要翻译：用于断路器10的控制部分80使得断路器10在R相的剩余通量与稳定磁通量一致的定时处施加第一施加相位（R相）的电流。此后，控制部分80确定由电流测量部分40R，40S，40T测量的电流是否超过阈值。当测量电流不超过阈值时，控制部分80使断路器10在R相电压为零的定时处施加其它两相（S和T相）的电流。当测量电流超过阈值时，控制部分80使断路器10一旦切断R相的电流并再次施加R相的电流。

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