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1. 发明授权

US06407894B1 Method and apparatus for differentially sensing ground fault and individual phases 有权
标题翻译：用于差分感应接地故障和各个相位的方法和装置
公开(公告)号：US06407894B1
公开(公告)日：2002-06-18
申请号：US09435186
申请日：1999-11-05
申请人： Mario Bilac , Jerry M. Green
发明人： Mario Bilac , Jerry M. Green
IPC分类号： H02H328
CPC分类号： H02H3/32 , H02H3/165
摘要： An apparatus (110) (FIG. 1) for differentially sensing a ground fault in a power distribution circuit is configured to route a plurality of power signals, the power signals when summed resulting in a zero sum signal. The apparatus (110) includes a circuit element (e.g., a resistor) (128), first and second current transformers (CTs) (112, 114, 116), and a routing circuit (118). The first and second current transformers (112, 114, 116) are configured to sense first and second power signals and to generate first and second sense signals representative of the first and second power signals, respectively. The routing circuit (118) is configured to receive the first and second sense signals to provide a residual signal across the circuit element (128).
摘要翻译：用于差分地感测配电电路中的接地故障的装置（110）（图1）被配置为路由多个功率信号，所述功率信号在相加后产生零和信号。装置（110）包括电路元件（例如电阻器）（128），第一和第二电流互感器（CT）（112,114,116）以及布线电路（118）。第一和第二电流互感器（112,114,116）被配置为感测第一和第二功率信号并分别产生表示第一和第二功率信号的第一和第二感测信号。路由电路（118）被配置为接收第一和第二感测信号以在电路元件（128）两端提供残余信号。

2. 发明授权

US06621672B2 Circuit breaker having analog override 有权
标题翻译：具有模拟超驰的断路器
公开(公告)号：US06621672B2
公开(公告)日：2003-09-16
申请号：US09968368
申请日：2001-10-01
申请人： Mario Bilac
发明人： Mario Bilac
IPC分类号： H02H328
CPC分类号： H02H3/05 , H02H1/06 , H02H3/0935
摘要： A circuit breaker having a trip mechanism and an electronic module having an application specific integrated circuit (ASIC), a control circuit, a composite circuit which generates a composite signal voltage, a residual circuit, the circuit breaker comprising a first power supply to provide a first voltage signal and a second power supply to provide a second voltage signal. An analog override circuit in the circuit breaker is configured to receive the first voltage signal from the first power supply, the second voltage signal from the second power supply and the composite signal voltage from the composite circuit. The analog override circuit provides an override signal to the ASIC which is coupled to a logic gate configured to receive a first trip signal from the control circuit and a second trip signal from the ASIC and provides a third trip signal to the trip mechanism.
摘要翻译：具有跳闸机构的断路器和具有专用集成电路（ASIC）的电子模块，控制电路，产生复合信号电压的复合电路，剩余电路，所述断路器包括第一电源，以提供第一电压信号和第二电源以提供第二电压信号。断路器中的模拟超控电路被配置为接收来自第一电源的第一电压信号，来自第二电源的第二电压信号和来自复合电路的复合信号电压。模拟覆盖电路向ASIC提供覆盖信号，其被耦合到配置为从控制电路接收第一跳闸信号的逻辑门和来自ASIC的第二跳闸信号，并向跳闸机构提供第三跳闸信号。

3. 发明授权

US06320731B1 Fault tolerant motor drive arrangement with independent phase connections and monitoring system 有权
标题翻译：具有独立相位连接和监控系统的容错电机驱动装置
公开(公告)号：US06320731B1
公开(公告)日：2001-11-20
申请号：US09577809
申请日：2000-05-24
申请人： Stephen S. Eaves , Matthew L. Kasson
发明人： Stephen S. Eaves , Matthew L. Kasson
IPC分类号： H02H328
CPC分类号： H02H7/0805 , H02H3/105 , Y10S388/903
摘要： In the embodiment described in the specification, a fault tolerant motor drive circuit arrangement includes a motor having three stator windings which are electrically isolated and are supplied by separate single phase drive circuits, each having a differential current sensor detecting current in both circuit conductors and an overcurrent sensor in one circuit conductor, along with a ground connection for each circuit having a ground conductor with an overcurrent sensor and a high resistance with a voltage sensor across the high resistance. A monitoring unit receives signals from all of the differential current sensors, overcurrent sensors and voltage sensors to provide indications of the location of insulation faults or incipient faults in the windings.
摘要翻译：在本说明书中描述的实施例中，容错电动机驱动电路装置包括具有三个定子绕组的电动机，该三个定子绕组被电隔离并且由单独的单相驱动电路提供，每个驱动电路都具有检测两个电路导体中的电流的差动电流传感器和一个电路导体中的过电流传感器，以及每个电路的接地连接，具有具有过电流传感器的接地导体和具有跨越高电阻的电压传感器的高电阻。监测单元从所有差动电流传感器，过电流传感器和电压传感器接收信号，以提供绕组中绝缘故障或初始故障位置的指示。

4. 发明授权

US06611411B2 Trip signal verifying method and apparatus 有权
公开(公告)号：US06611411B2
公开(公告)日：2003-08-26
申请号：US09681446
申请日：2001-04-06
申请人： Craig B. Williams , Michael S. Tignor , Michael B. Bradley
发明人： Craig B. Williams , Michael S. Tignor , Michael B. Bradley
IPC分类号： H02H328
CPC分类号： H02H1/04 , H02H3/05
摘要： A verifying trip unit includes a microcontroller providing a plurality of input signals to a logic device for controlling a trip unit actuator. The logic device produces an output signal for controlling a trip unit actuator. In response to the plurality of input signals, the logic device provides an output signal indicative of a function performed on the signals for opening the circuit breaker contacts in an overcurrent condition.

5. 发明授权

US06198612B1 Method and apparatus for the monitoring of electric lines 有权
标题翻译：用于监测电线的方法和装置
公开(公告)号：US06198612B1
公开(公告)日：2001-03-06
申请号：US09246470
申请日：1999-02-09
申请人： Bernd Männer
发明人： Bernd Männer
IPC分类号： H02H328
CPC分类号： G01R31/025
摘要： Two or more electric lines which transmit switching signals are monitored for short circuits. A difference voltage other than zero is at least intermittently applied to the lines which carry switching signals. The actual difference voltage between two lines is essentially continuously determined and a fault recognition signal representative of a short circuit between the two lines is produced when the measured difference voltage plot or the measured difference voltage differs from a predetermined reference voltage plot or from a predetermined reference voltage. An apparatus including a signal generator and an evaluation circuit determines when the measured voltage plot or voltage differs from the reference voltage or reference voltage plot and generates a signal with which the electric lines can be interrupted.
摘要翻译：监控发送开关信号的两条或更多条电线用于短路。至少间断地将不同于零的差分电压施加到承载开关信号的线路上。基本上连续地确定两条线之间的实际差分电压，并且当测量的差分电压曲线或测得的差分电压与预定参考电压曲线或预定参考值不同时，产生表示两条线路之间短路的故障识别信号电压。包括信号发生器和评估电路的装置确定测量的电压曲线或电压何时与参考电压或参考电压曲线不同，并产生可以中断电线的信号。

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