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1. 发明授权

US5185684A Frequency selective arc detection 失效
标题翻译：频率选择电弧检测
公开(公告)号：US5185684A
公开(公告)日：1993-02-09
申请号：US676738
申请日：1991-03-28
申请人： Bruce C. Beihoff , Charles J. Tennies , Francis S. Richards, Jr. , Walter K. O'Neil
发明人： Bruce C. Beihoff , Charles J. Tennies , Francis S. Richards, Jr. , Walter K. O'Neil
IPC分类号： G01R15/18 , G01R29/12 , G01R31/08 , H02H1/00
CPC分类号： H02H1/0015 , G01R15/181 , G01R29/12 , G01R31/08
摘要： An arc detection method and apparatus is provided for an electric circuit having an electrified conductor (46) connecting a voltage source (26) to a load (30). A field sensor senses an electromagnetic field established about the conductor by the occurrence of an electrical arc in the circuit, and generates a field responsive signal. Arc discrimination circuitry includes frequency responsive circuitry responding to the field sensor and generating an arc indicative signal in response to a given frequency characteristic of the field responsive signal. The frequency responsive circuitry monitors a plurality of different frequencies of the field responsive signal, and generates the arc indicative signal in response to a given combination of field responsive signal frequencies. A comb filter passes the field responsive signal through a plurality of passbands, and the arc indicative signal is generated in response to a given frequency signature of the field responsive signal.
摘要翻译：为具有将电压源（26）连接到负载（30）的带电导体（46）的电路提供电弧检测方法和装置。场传感器通过在电路中发生电弧来感测建立在导体周围的电磁场，并产生场响应信号。电弧鉴别电路包括响应于现场传感器的频率响应电路并响应于场响应信号的给定频率特性产生电弧指示信号。频率响应电路监测场响应信号的多个不同频率，并且响应于场响应信号频率的给定组合产生电弧指示信号。梳状滤波器通过多个通带通过场响应信号，并且响应于场响应信号的给定频率特征产生电弧指示信号。

2. 发明授权

US5185686A Direction sensing arc detection 失效
标题翻译：方向感测弧检测
公开(公告)号：US5185686A
公开(公告)日：1993-02-09
申请号：US676840
申请日：1991-03-28
申请人： James E. Hansen , Bruce C. Beihoff , Charles J. Tennies , Francis S. Richards, Jr.
发明人： James E. Hansen , Bruce C. Beihoff , Charles J. Tennies , Francis S. Richards, Jr.
IPC分类号： G01R31/12 , G01R31/08 , H02H1/00 , H02H9/02
CPC分类号： G01R31/08 , H02H1/0015
摘要： An arc detection method and apparatus is provided for an electric circuit having an electrified conductor (46) connecting a voltage source (26) to a load (30), the conductor having a line side extending from the arc detector to the voltage source, and a load side extending from the arc detector to the load. The arc detector includes a field sensor (62) sensing the electromagnetic field established about the conductor by the occurrence of an electrical arc in the circuit, and generating a field responsive signal in response thereto. Direction sensing circuitry detects whether the arc is from the load side or the line side, and generates a direction indicative signal.

3. 发明授权

US5907267A Photoelectric auxiliary switch for electromagnetic contactor 失效
标题翻译：电磁接触器光电辅助开关
公开(公告)号：US5907267A
公开(公告)日：1999-05-25
申请号：US851859
申请日：1997-05-06
申请人： Scott A. Reid , Francis S. Richards, Jr.
发明人： Scott A. Reid , Francis S. Richards, Jr.
IPC分类号： H01H9/16 , H01H50/54 , H01H73/12
CPC分类号： H01H9/167 , H01H50/545 , H01H9/168
摘要： Photoelectric reflective object sensors are mounted in an exteriorly mounted auxiliary switch case to detect a member on a movable contact assembly of the contactor to produce logic level output signals indicative of the operational state of the contactor electromagnet. One or a pair of photoelectric sensors are used in a side mounted auxiliary switch to detect the contactor movable contact assembly in the energized or de-energized position, or en route between the two positions. A single photoelectric sensor is used in a top adder auxiliary switch to detect if the movable contact assembly is or is not in the extended (de-energized) position. The auxiliary switches provided logic level output signals directly usable with microprocessor based controllers.
摘要翻译：光电反射物体传感器安装在外部安装的辅助开关壳体中，以检测接触器的可移动接触组件上的构件，以产生指示接触器电磁体的操作状态的逻辑电平输出信号。在侧面安装的辅助开关中使用一对或一对光电传感器，以在通电或断电位置或在两个位置之间的途中检测接触器可动接触组件。在顶部加法器辅助开关中使用单个光电传感器来检测可动触头组件是否处于延长（断电）位置。辅助开关提供与微处理器控制器直接可用的逻辑电平输出信号。

4. 发明授权

US5185687A Chaos sensing arc detection 失效
标题翻译： CHAOS感光弧检测
公开(公告)号：US5185687A
公开(公告)日：1993-02-09
申请号：US676739
申请日：1991-03-28
申请人： Bruce C. Beihoff , Charles J. Tennies , Francis S. Richards, Jr. , Walter K. O'Neil
发明人： Bruce C. Beihoff , Charles J. Tennies , Francis S. Richards, Jr. , Walter K. O'Neil
IPC分类号： G01R31/12 , H02H1/00 , H02H5/00
CPC分类号： H02H1/0015
摘要： An arc detection method and apparatus is provided for an electric circuit having an electrified conductor (46) connecting a voltage source (26) to a load (30). The arc detector includes a field sensor (62) sensing an electromagnetic field established about the conductor by the occurrence of an electrical arc in the electric circuit, and generating a field responsive signal in response thereto. Arc discrimination circuitry responds to the field sensor and generates an arc indicative signal in response to a random chaotic pattern of the field responsive signal.

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