公开(公告)号：US08310106B2

公开(公告)日：2012-11-13

申请号：US12516717

申请日：2007-11-29

申请人： Tadashi Koshiduka ,  Minoru Saito ,  Susumu Nishiwaki ,  Nobuyuki Takahashi ,  Koichi Futagami ,  Yoshimasa Sato ,  Tsuyoshi Kokumai ,  Hiroshi Kusuyama

发明人： Tadashi Koshiduka ,  Minoru Saito ,  Susumu Nishiwaki ,  Nobuyuki Takahashi ,  Koichi Futagami ,  Yoshimasa Sato ,  Tsuyoshi Kokumai ,  Hiroshi Kusuyama

IPC分类号： H01F13/00 ,  H01F27/42 ,  H02P9/12

CPC分类号： H02H9/002 ,  H01H9/563 ,  Y10T307/826

摘要： To suppress the magnetizing inrush current occurring when supplying power of three phases of the transformer are performed simultaneously using three single-phase circuit breakers or a non-phase segregated operation-type circuit breaker, without providing a circuit breaker with a resistor or other equipment. A magnetizing inrush current suppression method for transformer suppresses a magnetizing inrush current occurring at the start of energizing of a three-phase transformer 300, when a three-phase power supply 100 is input to a terminal of each phase by means of a three-phase circuit breaker 200. In the method, by integrating phase voltages or line-to-line voltages on the primary side or the secondary side or the tertiary side when three-phase AC voltages are applied in a steady state to the transformer 300, steady-state magnetic flux 4, 5, 6 for each phase of the transformer is calculated, and the polarity and magnitude of the residual magnetic flux 7, 8, 9 of each phase of the transformer after the circuit breaker 200 shuts off the transformer are calculated, and the three-phase circuit breaker is caused to close simultaneously in a region 13 in which three phases overlap, each of the three phases having the polarity of the steady-state magnetic flux 4, 5, 6 equal to the polarity of the residual magnetic flux 7, 8, 9 for each phase of the transformer.

摘要翻译： 使用三相单相断路器或非相分离式运行型断路器同时进行供给变压器的三相供电时发生的励磁浪涌电流，而不用断路器而设置电阻器或其他设备。 用于变压器的励磁涌流抑制方法抑制在三相变压器300的通电开始时发生的磁化浪涌电流，当三相电源100通过三相电压被输入到每相的端子时 在这种方法中，当三相AC电压以稳定状态施加到变压器300时，通过在初级侧或次级侧或第三级上对相电压或线间电压进行积分， 计算变压器各相的状态磁通4,5,6，计算断路器200断开变压器后的变压器各相的剩余磁通7,8,9的极性和大小， 并且三相断路器在三相重叠的区域13中同时闭合，具有稳态磁通4,5,6的极性的三相中的每一个相等于 变压器各相的剩余磁通量7,8,9。

公开(公告)号：US20100141235A1

公开(公告)日：2010-06-10

申请号：US12516717

申请日：2007-11-29

申请人： Tadashi Koshiduka ,  Minoru Saito ,  Susumu Nishiwaki ,  Nobuyuki Takahashi ,  Koichi Futagami ,  Yoshimasa Sato ,  Tsuyoshi Kokumai ,  Hiroshi Kusuyama

发明人： Tadashi Koshiduka ,  Minoru Saito ,  Susumu Nishiwaki ,  Nobuyuki Takahashi ,  Koichi Futagami ,  Yoshimasa Sato ,  Tsuyoshi Kokumai ,  Hiroshi Kusuyama

IPC分类号： H01H9/56

CPC分类号： H02H9/002 ,  H01H9/563 ,  Y10T307/826

摘要： To suppress the magnetizing inrush current occurring when supplying power of three phases of the transformer are performed simultaneously using three single-phase circuit breakers or a non-phase segregated operation-type circuit breaker, without providing a circuit breaker with a resistor or other equipment. A magnetizing inrush current suppression method for transformer suppresses a magnetizing inrush current occurring at the start of energizing of a three-phase transformer 300, when a three-phase power supply 100 is input to a terminal of each phase by means of a three-phase circuit breaker 200. In the method, by integrating phase voltages or line-to-line voltages on the primary side or the secondary side or the tertiary side when three-phase AC voltages are applied in a steady state to the transformer 300, steady-state magnetic flux 4, 5, 6 for each phase of the transformer is calculated, and the polarity and magnitude of the residual magnetic flux 7, 8, 9 of each phase of the transformer after the circuit breaker 200 shuts off the transformer are calculated, and the three-phase circuit breaker is caused to close simultaneously in a region 13 in which three phases overlap, each of the three phases having the polarity of the steady-state magnetic flux 4, 5, 6 equal to the polarity of the residual magnetic flux 7, 8, 9 for each phase of the transformer.

摘要翻译： 使用三相单相断路器或非相分离式运行型断路器同时进行供给变压器的三相供电时发生的励磁浪涌电流，而不用断路器而设置电阻器或其他设备。 用于变压器的励磁涌流抑制方法抑制在三相变压器300的通电开始时发生的磁化浪涌电流，当三相电源100通过三相电压被输入到每相的端子时 在这种方法中，当三相AC电压以稳定状态施加到变压器300时，通过在初级侧或次级侧或第三级上对相电压或线间电压进行积分， 计算变压器各相的状态磁通4,5,6，计算断路器200断开变压器后的变压器各相的剩余磁通7,8,9的极性和大小， 并且三相断路器在三相重叠的区域13中同时闭合，具有稳态磁通4,5,6的极性的三相中的每一个相等于 变压器各相的剩余磁通量7,8,9。