公开(公告)号：US07692904B2

公开(公告)日：2010-04-06

申请号：US11901759

申请日：2007-09-18

申请人： Xuguang Li ,  Xiaobing Dong ,  Yi Yin

发明人： Xuguang Li ,  Xiaobing Dong ,  Yi Yin

IPC分类号： H02H3/00

CPC分类号： H02H11/002

摘要： A method of preventing an overload current from a power supply to a load through a ground fault circuit interrupter includes the steps of: obtaining an interrupted fault current from a hot wire to a ground wire via a first zero-phase current inductor and a fault current from a neutral wire to the ground wire via a second zero-phase current inductor; amplifying a signal of the fault current by an Op-Amp; and determining the fault current by a programmable control module, wherein when the fault current is larger than a preset threshold, the programmable control module sends a control signal to a control switch such that the control switch electrifies a second coil of a trip breaker to drive an armature at an unlocked position, so as to separate a movable terminal with a fixed terminal for electrically disconnecting the load with the power supply.

摘要翻译： 通过接地故障电路断续器防止来自电源到负载的过载电流的方法包括以下步骤：经由第一零相电流电感器和故障电流从热线到接地线获得中断的故障电流 通过第二个零相电流电感从中性线到地线; 通过Op-Amp放大故障电流的信号; 以及通过可编程控制模块确定所述故障电流，其中当所述故障电流大于预设阈值时，所述可编程控制模块向控制开关发送控制信号，使得所述控制开关使跳闸断路器的第二线圈通电以驱动 电枢处于解锁位置，以便将可移动端子与固定端子分开，以使电源与电源电断开。

公开(公告)号：US20080225448A1

公开(公告)日：2008-09-18

申请号：US11901759

申请日：2007-09-18

申请人： Xuguang Li ,  Xiaobing Dong ,  Yi Yin

发明人： Xuguang Li ,  Xiaobing Dong ,  Yi Yin

IPC分类号： H02H3/04

CPC分类号： H02H11/002

摘要： A method of preventing an overload current from a power supply to a load through a ground fault circuit interrupter includes the steps of: obtaining an interrupted fault current from a hot wire to a ground wire via a first zero-phase current inductor and a fault current from a neutral wire to the ground wire via a second zero-phase current inductor; amplifying a signal of the fault current by an Op-Amp; and determining the fault current by a programmable control module, wherein when the fault current is larger than a preset threshold, the programmable control module sends a control signal to a control switch such that the control switch electrifies a second coil of a trip breaker to drive an armature at an unlocked position, so as to separate a movable terminal with a fixed terminal for electrically disconnecting the load with the power supply.

摘要翻译： 通过接地故障电路断续器防止来自电源到负载的过载电流的方法包括以下步骤：经由第一零相电流电感器和故障电流从热线到接地线获得中断的故障电流 通过第二个零相电流电感从中性线到地线; 通过Op-Amp放大故障电流的信号; 以及通过可编程控制模块确定所述故障电流，其中当所述故障电流大于预设阈值时，所述可编程控制模块向控制开关发送控制信号，使得所述控制开关使跳闸断路器的第二线圈通电以驱动 电枢处于解锁位置，以便将可移动端子与固定端子分开，以使电源与电源电断开。