公开(公告)号：US20080269952A1

公开(公告)日：2008-10-30

申请号：US11947371

申请日：2007-11-29

申请人： Hiroyuki TSUTADA ,  Takashi Hirai ,  Haruhiko Kohyama ,  Kenji Kamei

发明人： Hiroyuki TSUTADA ,  Takashi Hirai ,  Haruhiko Kohyama ,  Kenji Kamei

IPC分类号： G05D3/12

CPC分类号： H01H9/56 ,  Y10T307/852

摘要： A target-closing phase-map generating section generates in advance a target closing phase map in consideration of a pre-arc characteristic and variations of a mechanical action of a breaker, and amplitude fluctuations of the load voltage. A target-closing time calculating section calculates a target closing time string from frequencies and phases of the power source voltage and the load voltage, respectively, of the breaker referring to the target closing phase map. A closing control section, when a close command 11 is inputted, controls the timing of outputting a closing control signal based on a predicted closing time and the target closing time string.

摘要翻译： 考虑到预弧特性和断路器的机械动作的变化以及负载电压的振幅波动，目标闭合相位图生成部件预先生成目标闭合相位图。 目标关闭时间计算部分，参照目标关闭相位图，分别根据断路器的电源电压和负载电压的频率和相位来计算目标闭合时间串。 关闭控制部，当输入关闭命令11时，基于预测的关闭时间和目标关闭时间串来控制输出关闭控制信号的定时。