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1. 发明申请

US20150309103A1 Ground Fault Detector With Self-Test 审中-公开
标题翻译：自检接地故障检测器
公开(公告)号：US20150309103A1
公开(公告)日：2015-10-29
申请号：US14262411
申请日：2014-04-25
申请人： Leviton Manufacturing Company
发明人： Michael Ostrovsky , Alek Aronov , Michael Kamor , Renjith Mathew
IPC分类号： G01R31/02 , G01R35/00
CPC分类号： G01R31/3277 , H02H3/335
摘要： An apparatus includes an interruption circuit in a power delivery path, and a fault detection circuit configured to provide a fault signal to selectively cause the interruption circuit to interrupt power delivery, wherein the fault detection circuit includes a fault detection integrated circuit (IC) and a sensing coil configured to sense a differential current between a phase conductive path and a neutral conductive path in the power delivery path. A processor is configured to selectively control a fault simulation circuit to simulate a fault in the power delivery path, detect a response of the fault detection circuit to the simulated fault, and determine if the response of the fault detection circuit is an expected response. The processor provides an override signal to the interruption circuit to prevent the interruption circuit from receiving a fault signal from the fault detection circuit during, and for a predetermined time after, the simulated fault.
摘要翻译：一种装置包括电力输送路径中的中断电路，以及故障检测电路，被配置为提供故障信号以选择性地使所述中断电路中断电力输送，其中所述故障检测电路包括故障检测集成电路（IC）和感测线圈，被配置为感测电力输送路径中的相导电路径和中性导电路径之间的差分电流。处理器被配置为选择性地控制故障模拟电路来模拟电力输送路径中的故障，检测故障检测电路对模拟故障的响应，以及确定故障检测电路的响应是否是预期的响应。处理器向中断电路提供超驰信号，以防止中断电路在模拟故障期间和预定时间之后从故障检测电路接收故障信号。

2. 发明申请

US20190383871A1 GROUND FAULT DETECTOR 审中-公开
公开(公告)号：US20190383871A1
公开(公告)日：2019-12-19
申请号：US16557455
申请日：2019-08-30
申请人： Leviton Manufacturing Company, Inc
发明人： Michael OSTROVSKY , Alek Aronov , Michael Kamor , Renjith Mathew
IPC分类号： G01R31/02 , H02H3/33 , G01R35/00 , G01R31/327
摘要： An apparatus includes an interruption circuit in a power delivery path, and a fault detection circuit configured to provide a fault signal to selectively cause the interruption circuit to interrupt power delivery, wherein the fault detection circuit includes a fault detection integrated circuit and a sensing coil configured to sense a differential current between a phase conductive path and a neutral conductive path in the power delivery path. A processor is configured to selectively control a fault simulation circuit to simulate a fault in the power delivery path, detect a response of the fault detection circuit to the simulated fault, and determine if the response of the fault detection circuit is an expected response. The processor provides an override signal to the interruption circuit to prevent the interruption circuit from receiving a fault signal from the fault detection circuit during, and for a predetermined time after, the simulated fault.

3. 发明授权

US09759758B2 Ground fault detector 有权
公开(公告)号：US09759758B2
公开(公告)日：2017-09-12
申请号：US14690247
申请日：2015-04-17
申请人： Leviton Manufacturing Company
发明人： Michael Ostrovsky , Alek Aronov , Michael Kamor , Renjith Mathew
IPC分类号： G01R31/02 , G01R35/00 , G01R31/327 , H02H3/33
CPC分类号： G01R31/025 , G01R31/3277 , G01R35/00 , H02H3/335
摘要： An apparatus includes an interruption circuit in a power delivery path, and a fault detection circuit configured to provide a fault signal to selectively cause the interruption circuit to interrupt power delivery, wherein the fault detection circuit includes a fault detection integrated circuit and a sensing coil configured to sense a differential current between a phase conductive path and a neutral conductive path in the power delivery path. A processor is configured to selectively control a fault simulation circuit to simulate a fault in the power delivery path, detect a response of the fault detection circuit to the simulated fault, and determine if the response of the fault detection circuit is an expected response. The processor provides an override signal to the interruption circuit to prevent the interruption circuit from receiving a fault signal from the fault detection circuit during, and for a predetermined time after, the simulated fault.

4. 发明授权

US10401413B2 Ground fault detector 有权
公开(公告)号：US10401413B2
公开(公告)日：2019-09-03
申请号：US15701274
申请日：2017-09-11
申请人： Leviton Manufacturing Company, Inc.
发明人： Michael Ostrovsky , Alek Aronov , Michael Kamor , Renjith Mathew
IPC分类号： G01R31/02 , G01R31/327 , H02H3/33 , G01R35/00
摘要： An apparatus includes an interruption circuit in a power delivery path, and a fault detection circuit configured to provide a fault signal to selectively cause the interruption circuit to interrupt power delivery, wherein the fault detection circuit includes a fault detection integrated circuit and a sensing coil configured to sense a differential current between a phase conductive path and a neutral conductive path in the power delivery path. A processor is configured to selectively control a fault simulation circuit to simulate a fault in the power delivery path, detect a response of the fault detection circuit to the simulated fault, and determine if the response of the fault detection circuit is an expected response. The processor provides an override signal to the interruption circuit to prevent the interruption circuit from receiving a fault signal from the fault detection circuit during, and for a predetermined time after, the simulated fault.

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