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公开(公告)号：US06603381B2
公开(公告)日：2003-08-05
申请号：US09682278
申请日：2001-08-13
IPC分类号： H01F1706
CPC分类号： H01H71/125 , H01F27/34 , H01F38/30
摘要： A transformer includes a core having an aperture formed therein and a conductive bar extending through the core. The aperture in the core has a centroidal axis The conductive bar includes: a first surface extending generally parallel to the centroidal axis, a second surface opposite the first surface and extending generally parallel to the centroidal axis, the first surface being closer than the second surface to said centroidal axis. The conductive bar also includes means for diverting electrical current flowing through the conductive bar towards said first surface.
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公开(公告)号：US06556404B2
公开(公告)日：2003-04-29
申请号：US09681650
申请日：2001-05-16
申请人： Alberto Anibal Figueroa , Farshid Attarian , Joseph Criniti , Javier Ignacio Larranaga , James Robert Scanlon
发明人： Alberto Anibal Figueroa , Farshid Attarian , Joseph Criniti , Javier Ignacio Larranaga , James Robert Scanlon
IPC分类号： H02H300
CPC分类号： H05K7/20909 , H02B1/56
摘要： Electrical distribution equipment generally includes a housing defining an enclosed space and a conductor in the enclosed space. A current transformer utilizing current in the conductor induces current in a secondary winding thereof, and a fan assembly is electrically connected to the secondary winding. The fan assembly includes a fan motor in driving relation to a fan.
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3.发明授权Compact low cost current sensor and current transformer core for circuit breakers having improved dynamic range 失效具有改进的动态范围的紧凑型低成本电流传感器和用于断路器的电流互感器芯公开(公告)号：US07002440B2
公开(公告)日：2006-02-21
申请号：US11004721
申请日：2004-12-03
IPC分类号： H01H75/00
CPC分类号： G01R15/183
摘要： A circuit breaker having a housing, a pair of separable contacts, a current sensor strap in electrical communication with the contacts, an operating mechanism for operating the contacts, an electronic trip unit in operable communication with the sensor strap and the mechanism, and a current transformer is disclosed. The current transformer has a mixed material magnetic core having a first layer of material having a relatively high magnetic permeability, and a second layer of material having a relatively low magnetic permeability abutting the first layer of material. The core has a profile with an opening therethrough for accepting the sensor strap. A signal generator is disposed proximate the core to provide an output signal representative of a magnetic flux associated with the sensor strap. The mixed material magnetic core exhibits a dynamic range greater than a dynamic range of a similar shaped magnetic core having only one material of the first layer of material and the second layer of material.
摘要翻译： 一种断路器，具有壳体，一对可分离触点，与触点电连通的电流传感器带，用于操作触点的操作机构，与传感器带和机构可操作地连通的电子跳闸单元，以及电流 变压器被公开。 电流互感器具有混合材料磁芯，该混合材料磁心具有具有相对较高磁导率的第一材料层，以及与第一层材料相邻的具有相对较低磁导率的第二材料层。 芯具有通过其开口的轮廓以接收传感器带。 信号发生器设置在核心附近以提供表示与传感器带相关联的磁通量的输出信号。 混合材料磁芯的动态范围大于仅具有第一材料层和第二材料层的一种材料的类似形状的磁芯的动态范围。
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公开(公告)号：US06456061B1
公开(公告)日：2002-09-24
申请号：US09717609
申请日：2000-11-21
IPC分类号： G01R114
CPC分类号： G01R35/02
摘要： A method permits calibration of a current sensor having a conductor that comprises at least two conductor branches electrically connected in parallel. The method comprises passing a predetermined electrical current through the conductor, measuring a fraction of the current that passes through a measured conductor branch, which is one of the two conductor branches, comparing the measured current against a predetermined target current, trimming a calibrating conductor, which is one of the at least two conductor branches, the trimming taking place when said measured current and said predetermined target current are not equal.
摘要翻译： 一种方法允许校准具有导体的电流传感器，该导体包括并联电连接的至少两个导体分支。 该方法包括使预定电流通过导体，测量通过作为两个导体分支之一的测量导体支路的电流的一部分，将测量的电流与预定目标电流进行比较，修整校准导体， 其是所述至少两个导体分支中的一个，当所述测量电流和所述预定目标电流不相等时进行修整。
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5.发明授权Compact low cost current sensor and current transformer core having improved dynamic range 有权紧凑型低成本电流传感器和电流互感器磁芯具有改进的动态范围公开(公告)号：US06844799B2
公开(公告)日：2005-01-18
申请号：US09681454
申请日：2001-04-10
CPC分类号： G01R15/183
摘要： A current sensor and current transformer for monitoring electrical current is provided with a magnetic core having a mixture of magnetic materials to provide a low cost design in a compact configuration with an expanded dynamic range. The mixed material core can be fabricated either from stamped laminations or from coil stock and may include an air gap for activating a magnetic flux sensor. Multiple core configurations, including Figure-O, Figure-C, and Figure-8, having mixed material construction are disclosed and offer advantages over non-mixed material cores where dynamic range and frequency response characteristics are a consideration.
摘要翻译： 用于监测电流的电流传感器和电流互感器提供有具有磁性材料混合物的磁芯，以在具有扩大的动态范围的紧凑配置中提供低成本设计。 混合材料芯可以由冲压叠片或线圈坯料制成，并且可以包括用于激活磁通量传感器的气隙。 公开了具有混合材料结构的多核心配置，包括具有混合材料结构的图O，图C和图8，并且提供了优于考虑动态范围和频率响应特性的非混合材料芯的优点。
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