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    ELECTRONIC TRIP UNITS POWERED BY CURRENT TRANSFORMERS AND CIRCUIT BREAKERS COMPRISING THE SAME
    1.
    发明申请
    ELECTRONIC TRIP UNITS POWERED BY CURRENT TRANSFORMERS AND CIRCUIT BREAKERS COMPRISING THE SAME 有权
    由电流互感器供电的电子牵引单元及包括其的断路器

    公开(公告)号：US20160276115A1

    公开(公告)日：2016-09-22

    申请号：US14663890

    申请日：2015-03-20

    申请人： Eaton Corporation

    发明人： Gerald Zheng ,  Xin Zhou ,  James Leo Lagree ,  Theodore James Miller ,  Bruce Wu ,  Sui Ouyang

    IPC分类号： H01H9/54 ,  H01H37/32

    CPC分类号： H01H9/54 ,  H01H37/32 ,  H01H71/123 ,  H01H71/125 ,  H01H83/20 ,  H01H2011/0068 ,  H02H1/0007 ,  H02H1/046 ,  H02H3/08 ,  H02H5/044

    摘要： A circuit breaker includes a set of separable contacts moveable between a closed position and an open position, an operating mechanism configured to open the set of contacts, a conductor coupled to the set of contacts, a current transformer coupled to the conductor, and a trip circuit coupled to the operating mechanism and to the current transformer and configured to cause the operating mechanism to open the set of contacts when a current through the conductor exceeds a current threshold that is greater than a saturation threshold of the current transformer. The trip circuit is further configured to vary the current threshold during an interval following a closure of the set of the contacts and to provide a fixed current threshold thereafter.

    摘要翻译： 断路器包括一组在可关闭位置和打开位置之间移动的可分离触点，操作机构，其构造成打开所述触点组，连接到所述触点组的导体，耦合到所述导体的电流互感器，以及跳闸 耦合到所述操作机构和所述电流互感器并且被配置为当通过所述导体的电流超过大于所述电流互感器的饱和阈值的电流阈值时，使所述操作机构打开所述触点组。 跳闸电路还被配置为在该组触点闭合之后的间隔期间改变电流阈值，并且此后提供固定的电流阈值。

    Circuit interrupter including thermal trip assembly and printed circuit board Rogowski coil
    2.
    发明授权
    Circuit interrupter including thermal trip assembly and printed circuit board Rogowski coil 有权
    电路断路器包括热跳闸组件和罗布斯基线圈的印刷电路板

    公开(公告)号：US09520254B2

    公开(公告)日：2016-12-13

    申请号：US14312994

    申请日：2014-06-24

    申请人： EATON CORPORATION

    发明人： Gerald Zheng ,  Jack Gu ,  Xin Zhou ,  Olina Ouyang ,  Bruce Wu

    IPC分类号： H02H5/04 ,  H01H37/00 ,  H01H73/20 ,  H01F5/00 ,  H01H71/12 ,  H02H1/00 ,  G01K1/14 ,  G01K1/18 ,  H01H71/22 ,  H01H11/00

    CPC分类号： H01H37/002 ,  G01K1/143 ,  G01K1/18 ,  H01F5/003 ,  H01H71/125 ,  H01H71/22 ,  H01H73/20 ,  H01H2011/0068 ,  H01H2071/124 ,  H02H1/0007 ,  H02H5/041 ,  H02H5/044

    摘要： A circuit interrupter includes a first terminal, a second terminal, separable contacts moveable between a closed position and an open position, the first and second terminals being electrically disconnected from each other when the separable contacts are in the open position, a printed circuit board Rogowski coil structured to sense a current flowing between the first and second terminals, a current transformer structured to harvest power from the current flowing between the first and second terminals, an electronic trip unit including an other trip circuit structured to output a first trip signal to control the actuator to cooperate with an operating mechanism to trip open the separable contacts based on the current sensed by the current sensor and a thermal trip assembly structured to sense a temperature of a busbar and to output a second trip signal based on the sensed temperature.

    摘要翻译： 电路断路器包括第一端子，第二端子，可分离触点，可在闭合位置和打开位置之间移动，当可分离触点处于打开位置时，第一和第二端子彼此电断开;印刷电路板Rogowski 构成为感测在第一和第二端子之间流动的电流的线圈，被构造成从在第一和第二端子之间流动的电流中获取功率的电流互感器，包括结构化以输出第一跳闸信号以控制的另一跳闸电路的电子跳闸单元 所述致动器与操作机构配合以基于由所述电流传感器感测的电流来跳闸打开所述可分离触点;以及热触发组件，其被构造为感测母线的温度并基于所感测的温度输出第二跳闸信号。

    Direct current sensing circuit and circuit interrupter including the same
    4.
    发明授权
    Direct current sensing circuit and circuit interrupter including the same 有权
    直流感应电路和电路断路器包括相同的

    公开(公告)号：US09103852B2

    公开(公告)日：2015-08-11

    申请号：US14059621

    申请日：2013-10-22

    申请人： EATON CORPORATION

    发明人： Gerald Zheng ,  Jack Gu ,  Bruce Wu ,  Vijay Bhavaraju ,  Xin Zhou

    IPC分类号： G01R31/02 ,  G01R19/00 ,  H01H71/12

    CPC分类号： G01R19/0092 ,  G01R15/18 ,  G01R19/18 ,  H01H71/125 ,  H02H1/0007 ,  H02H3/087

    摘要： A circuit for sensing a direct current includes a first resistance and a second resistance. A first portion of the direct current flows through the first resistance and a second portion of the direct current flows through the second resistance. The circuit further includes a current sensor having an opening, first and second conductors inductively coupled with the current sensor, and a switching circuit having a pair of switches structured to alternatingly switch in order that the second portion of the direct current alternatingly flows through the first and second conductors. The second portion of the direct current flowing through the first conductor passes through the opening of the current sensor in a first direction and the second portion of the direct current flowing through the second conductor passes through the opening of the current sensor in a second direction opposite to the first direction.

    摘要翻译： 用于感测直流电路的电路包括第一电阻和第二电阻。 直流电流的第一部分流经第一电阻，第二部分直流电流流过第二电阻。 电路还包括电流传感器，其具有开口，与电流传感器感应耦合的第一和第二导体，以及开关电路，其具有一对开关，其被构造为交替地切换，以便直流的第二部分交替地流过第一 和第二导体。 流过第一导体的直流电流的第二部分沿着第一方向穿过电流传感器的开口，并且流过第二导体的直流的第二部分在相反的第二方向上穿过电流传感器的开口 到第一个方向。