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    • 6. 发明申请
    • METHOD AND APPARATUS FOR SUPPRESSING AN INRUSH CURRENT OF A TRANS FORMER
    • 用于抑制转移成形器的浪涌电流的方法和装置
    • WO2011116488A1
    • 2011-09-29
    • PCT/CN2010000344
    • 2010-03-22
    • SIEMENS AGLI MINGSHI JUNYU ERGAOXIOLA ENRIQUEGRIEPENTROG GERD
    • LI MINGSHI JUNYU ERGAOXIOLA ENRIQUEGRIEPENTROG GERD
    • H02H9/02
    • H02H9/002H02H7/04
    • The invention relates to a method and apparatus for suppressing an inrush current of a three-phase transformer (15) connected to a three-phase power supply via a triple- pole circuit breaker (20), the transformer (15) being connected and disconnected from the power supply by closing and opening the circuit breaker (20), wherein the method comprises monitoring a property of at least two phases of the transformer (15), determining a residual flux pattern after the circuit breaker (20) is opened, computing an equivalent opening moment (60) of the circuit breaker (20) using the property monitored, wherein at the equivalent opening moment (60) of the circuit breaker (20), the phases of the transformer (15) are de-energized simultaneously, deriving a closing time window (64) for closing the circuit breaker (20) on the basis of the equivalent opening moment (60), and closing the poles of the circuit breaker (20) simultaneously within the closing time window (64).
    • 本发明涉及一种通过三极断路器(20)抑制连接到三相电源的三相变压器(15)的浪涌电流的方法和装置,变压器(15)被连接和断开 通过关闭和断开断路器(20)从电源供电,其中该方法包括监测变压器(15)的至少两相的性质,确定断路器(20)打开后的剩余通量图,计算 断路器(20)的等效开启时刻(60),使用所监测的特性,其中在断路器(20)的等效开启时刻(60),变压器(15)的相位同时断电, 导出关于基于等效打开力矩(60)关闭断路器(20)的关闭时间窗(64),以及在关闭时间窗(64)内同时关闭断路器(20)的极点。