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公开(公告)号：US20120226453A1
公开(公告)日：2012-09-06
申请号：US13038706
申请日：2011-03-02
摘要： A trip unit for a circuit breaker having at least one sensor for monitoring a current in a protected circuit and a tripping system is provided. The trip unit includes a first controller operably coupled to receive a current signal from the at least one sensor and electrically coupled to the tripping system. The first controller includes a first processor that transmits a first signal to the tripping system in response to a detection of a first undesired condition. A second controller is operably coupled to receive the current signal from the at least one sensor and is electrically coupled to the tripping system in parallel with the first controller. The second controller includes a second processor that detects the first condition and transmits a second signal to the tripping system after a predetermined first time period.
摘要翻译： 提供一种用于断路器的跳闸单元，其具有至少一个用于监视受保护电路中的电流的传感器和跳闸系统。 跳闸单元包括可操作地耦合以接收来自至少一个传感器的电流信号并电耦合到跳闸系统的第一控制器。 第一控制器包括第一处理器，其响应于检测到第一不期望的状况而将第一信号发送到跳闸系统。 第二控制器可操作地耦合以从所述至少一个传感器接收电流信号，并且与第一控制器并联地电耦合到跳闸系统。 第二控制器包括第二处理器，其在预定的第一时间段之后检测第一状态并将第二信号发送到跳闸系统。
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2.发明授权公开(公告)号：US09030793B2
公开(公告)日：2015-05-12
申请号：US13446144
申请日：2012-04-13
IPC分类号： H02H3/08
摘要： A circuit protection device for monitoring a current flowing from an electrical distribution line through a trip mechanism to a load includes an input conductor configured to receive a current signal from a sensor. At least one resistor is arranged to receive the current signal from the input conductor, and provides a voltage signal proportional to the current signal. The circuit protection device includes a control circuit coupled in parallel with the resistor and a power supply that receives the current signal from the resistor and supplies power to the control circuit based on the current signal. The control circuit is configured to receive the voltage signal and determine an amplitude of the current flowing through the trip mechanism based on the voltage signal. The control circuit is also configured to determine whether a predetermined current threshold is exceeded and to generate a control signal to activate the trip mechanism.
摘要翻译： 用于监测从配电线路通过跳闸机构流向负载的电流的电路保护装置包括被配置为从传感器接收电流信号的输入导体。 至少一个电阻被布置成从输入导体接收电流信号，并提供与电流信号成比例的电压信号。 电路保护装置包括与电阻器并联耦合的控制电路和接收来自电阻器的电流信号并基于电流信号向控制电路供电的电源。 控制电路被配置为基于电压信号接收电压信号并确定流过跳闸机构的电流的幅度。 控制电路还被配置为确定是否超过预定电流阈值并且产生用于激活跳闸机构的控制信号。
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3.发明申请公开(公告)号：US20130271886A1
公开(公告)日：2013-10-17
申请号：US13446144
申请日：2012-04-13
IPC分类号： H02H3/08
摘要： A circuit protection device for monitoring a current flowing from an electrical distribution line through a trip mechanism to a load includes an input conductor configured to receive a current signal from a sensor. At least one resistor is arranged to receive the current signal from the input conductor, and provides a voltage signal proportional to the current signal. The circuit protection device includes a control circuit coupled in parallel with the resistor and a power supply that receives the current signal from the resistor and supplies power to the control circuit based on the current signal. The control circuit is configured to receive the voltage signal and determine an amplitude of the current flowing through the trip mechanism based on the voltage signal. The control circuit is also configured to determine whether a predetermined current threshold is exceeded and to generate a control signal to activate the trip mechanism.
摘要翻译： 用于监测从配电线路通过跳闸机构流向负载的电流的电路保护装置包括被配置为从传感器接收电流信号的输入导体。 至少一个电阻被布置成从输入导体接收电流信号，并提供与电流信号成比例的电压信号。 电路保护装置包括与电阻器并联耦合的控制电路和接收来自电阻器的电流信号并基于电流信号向控制电路供电的电源。 控制电路被配置为基于电压信号接收电压信号并确定流过跳闸机构的电流的幅度。 控制电路还被配置为确定是否超过预定电流阈值并且产生用于激活跳闸机构的控制信号。
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