公开(公告)号：US08929036B2

公开(公告)日：2015-01-06

申请号：US13081146

申请日：2011-04-06

申请人： Amit Nayak ,  Hugh T. Kinsel

发明人： Amit Nayak ,  Hugh T. Kinsel

IPC分类号： H02H3/00 ,  H02H1/00 ,  H02H1/04 ,  H02H3/027

CPC分类号： H02H1/0015 ,  H02H1/04 ,  H02H3/027

摘要： In one aspect, a method of electrical arc fault detection when high frequency (e.g., RF noise) is present is disclosed. The method includes determining if first arcing criterion is met, determining if delay criterion is met, implementing a delay for a delay period if the delay criterion is met, and determining if second arcing criterion is met. If the second arcing criterion is met, then a trip signal may be sent to trip the circuit breaker. In another aspect, the method includes determining if first arcing criterion is met, starting delay period if the first arcing criterion is met, determining if delay criterion is met, and if the delay criterion is met, determining if second arcing criterion is met. An arc fault detection apparatus adapted to carry out the methods, and systems including the arc fault detection apparatus are disclosed, as are various other aspects.

摘要翻译： 一方面，公开了当高频（例如RF噪声）存在时的电弧故障检测方法。 该方法包括确定是否满足第一电弧放射标准，确定是否满足延迟标准，如果满足延迟标准，则实现延迟时间的延迟，以及确定是否满足第二放电准则。 如果满足第二电弧放电标准，则可以发送跳闸信号以跳闸断路器。 在另一方面，该方法包括确定是否满足第一电弧放射标准，如果满足第一电弧放电标准，则启动延迟周期，确定是否满足延迟标准，以及如果满足延迟标准，则确定是否满足第二电弧放电标准。 公开了适用于执行方法的电弧故障检测装置和包括电弧故障检测装置的系统，以及各种其它方面。

公开(公告)号：US08023235B2

公开(公告)日：2011-09-20

申请号：US12405340

申请日：2009-03-17

申请人： Mario Bilac ,  Carlos Restrepo ,  Hugh T. Kinsel ,  Amit Nayak

发明人： Mario Bilac ,  Carlos Restrepo ,  Hugh T. Kinsel ,  Amit Nayak

IPC分类号： H02H3/00

CPC分类号： H02H1/0015 ,  G01R31/3277 ,  H02H1/0092 ,  H02H3/33

摘要： An electrical fault detection device for use in a branch of a power circuit that utilizes signals from an AC line current sensor coupled to an electrical distribution line having a primary and neutral lines, a line high-frequency sensor coupled to the electrical distribution line, a differential current sensor coupled to the primary and neutral lines, and a ground fault current sensor coupled to the primary and neutral lines. A signal conditioner receives the signals outputted by AC current line current sensor, the line high frequency sensor, the differential current sensor and the ground fault current sensor and generates a signal indicative of the load current associated with a branch of the power circuit. Output of the signal conditioner is sampled and processed by a processing resource. The processing resource has stored therein data representing a plurality of time-versus-current curves that define a plurality of regions in which tripping may or may not occur. One region has time data and current data that define a time-duration for a particular current magnitude for which no tripping will occur. Another region has time data and current data that define a time-duration of a particular current magnitude for which tripping will occur. Processing resource processes sampled signal to determine the region to which the processed time data and current data correspond, and generates a signal to initiate tripping if the sampled signal yields a time duration for a particular current magnitude that corresponds to a region for which tripping must occur.

摘要翻译： 一种电力故障检测装置，用于利用耦合到具有初级和中性线的配电线路的交流线路电流传感器的信号的电力电路的分支，耦合到配电线路的线路高频传感器， 耦合到主线路和中性线路的差动电流传感器以及耦合到主线路和中性线路的接地故障电流传感器。 信号调节器接收由交流电流线路电流传感器，线路高频传感器，差分电流传感器和接地故障电流传感器输出的信号，并产生指示与电力电路的分支相关联的负载电流的信号。 信号调节器的输出由处理资源进行采样和处理。 处理资源中存储了表示多个时间 - 电流曲线的数据，该曲线定义了可能发生或可能不发生跳闸的多个区域。 一个区域具有定义不发生跳闸的特定电流幅度的时间长度的时间数据和当前数据。 另一个区域具有时间数据和当前数据，其定义了将发生跳闸的特定电流幅度的持续时间。 处理资源处理采样信号以确定处理时间数据和当前数据对应的区域，并且如果采样信号产生对应于必须发生跳闸的区域的特定电流幅度的持续时间，则产生信号以启动跳闸 。

公开(公告)号：US07864492B2

公开(公告)日：2011-01-04

申请号：US11978969

申请日：2007-10-30

申请人： Carlos Restrepo ,  Peter Staley ,  Amit Nayak ,  Vaske Mikani ,  Hugh Kinsel ,  Solomon R. Titus ,  Joselito Endozo

发明人： Carlos Restrepo ,  Peter Staley ,  Amit Nayak ,  Vaske Mikani ,  Hugh Kinsel ,  Solomon R. Titus ,  Joselito Endozo

IPC分类号： H02H3/00

CPC分类号： H02H1/0015 ,  H02H1/0092 ,  H02H3/33

摘要： In accordance with one aspect the present disclosure is directed toward a method for detecting arc faults on a power line. The method may include monitoring power signals associated with a power line and filtering the power signals to produce a high frequency signal and a low frequency signal. A mask signal may generated based on the low frequency signal, and the high frequency signal may be analyzed to extract a broadband portion of the high frequency signal. A fault counter may be incremented if the magnitude of the broadband portion is approximately greater than a first threshold level. A fault counter may be decremented if the magnitude of the broadband portion is approximately less than the first threshold level. A trip signal is provided to a switching device associated with the power line if the fault counter exceeds a predetermined fault limit.

摘要翻译： 根据一个方面，本公开涉及一种用于检测电力线上的电弧故障的方法。 该方法可以包括监视与电力线相关联的功率信号并对功率信号进行滤波以产生高频信号和低频信号。 可以基于低频信号生成屏蔽信号，并且可以分析高频信号以提取高频信号的宽带部分。 如果宽带部分的大小近似大于第一阈值电平，则故障计数器可以增加。 如果宽带部分的大小近似小于第一阈值电平，故障计数器可能会减少。 如果故障计数器超过预定的故障限制，则将跳闸信号提供给与电力线相关联的开关装置。

公开(公告)号：US20080106832A1

公开(公告)日：2008-05-08

申请号：US11978969

申请日：2007-10-30

申请人： Carlos Restrepo ,  Peter Staley ,  Amit Nayak ,  Vaske Mikani ,  Hugh Kinsel

发明人： Carlos Restrepo ,  Peter Staley ,  Amit Nayak ,  Vaske Mikani ,  Hugh Kinsel

IPC分类号： H02H3/16

CPC分类号： H02H1/0015 ,  H02H1/0092 ,  H02H3/33

摘要： In accordance with one aspect the present disclosure is directed toward a method for detecting arc faults on a power line. The method may include monitoring power signals associated with a power line and filtering the power signals to produce a high frequency signal and a low frequency signal. A mask signal may generated based on the low frequency signal, and the high frequency signal may be analyzed to extract a broadband portion of the high frequency signal. A fault counter may be incremented if the magnitude of the broadband portion is approximately greater than a first threshold level. A fault counter may be decremented if the magnitude of the broadband portion is approximately less than the first threshold level. A trip signal is provided to a switching device associated with the power line if the fault counter exceeds a predetermined fault limit.

摘要翻译： 根据一个方面，本公开涉及一种用于检测电力线上的电弧故障的方法。 该方法可以包括监视与电力线相关联的功率信号并对功率信号进行滤波以产生高频信号和低频信号。 可以基于低频信号生成屏蔽信号，并且可以分析高频信号以提取高频信号的宽带部分。 如果宽带部分的大小近似大于第一阈值电平，则故障计数器可以增加。 如果宽带部分的大小近似小于第一阈值电平，故障计数器可能会减少。 如果故障计数器超过预定的故障限制，则将跳闸信号提供给与电力线相关联的开关装置。

公开(公告)号：US20120229939A1

公开(公告)日：2012-09-13

申请号：US13045751

申请日：2011-03-11

申请人： Vaske Mikani ,  Amit Nayak

发明人： Vaske Mikani ,  Amit Nayak

IPC分类号： H02H9/02 ,  H02H3/02

CPC分类号： H02H1/0015 ,  G01R31/1227 ,  G01R31/14 ,  G01R31/2825 ,  H02H3/044 ,  H02H3/33 ,  H02H3/335 ,  H02H3/44

摘要： In one aspect, a method for detecting arc faults with a dynamically-changeable slope threshold is disclosed. The method may include monitoring a current waveform to determine a peak amplitude of a half cycle and a slope at a zero crossing of a half cycle. An arc fault counter may be incremented if the maximum amplitude of the half cycle and the slope at a zero crossing are greater than a preset magnitude threshold level and the dynamically-changeable slope threshold, respectively. In another aspect, a decay of the amplitude of a predetermined number of half cycles of the current waveform is measured and an arc counter is not incremented, even if the conditions would otherwise indicate an arc counter increment, when the decay is above a decay threshold for greater than a predetermined number of half cycles. An arc fault detection apparatus adapted to carry out the methods, and systems including the arc fault detection apparatus are disclosed, as are various other aspects.

摘要翻译： 一方面，公开了一种用动态可变斜率阈值检测电弧故障的方法。 该方法可以包括监视电流波形以确定半周期的峰值幅度和半周期过零点的斜率。 如果半周期的最大幅度和过零点处的斜率分别大于预设的幅度阈值电平和动态可变斜率阈值，则电弧故障计数器可以递增。 在另一方面，测量当前波形的预定数量的半周期的振幅的衰减，并且即使条件否则表示电弧计数器增量，当衰减高于衰减阈值时，电弧计数器也不递增 大于预定数量的半周期。 公开了适用于执行方法的电弧故障检测装置和包括电弧故障检测装置的系统，以及各种其它方面。

公开(公告)号：US08184011B2

公开(公告)日：2012-05-22

申请号：US12574449

申请日：2009-10-06

申请人： Amit Nayak ,  Carlos Restrepo ,  Brian Timothy McCoy

发明人： Amit Nayak ,  Carlos Restrepo ,  Brian Timothy McCoy

IPC分类号： G08B21/00 ,  H02H7/00

CPC分类号： H02H3/04 ,  H02H1/0015 ,  H02H3/33

摘要： An arc fault detector includes a means for repeatedly measuring an elapsed time. The arc fault detector also includes at least one means to perform arc detection at each repeated elapsed time. Means for initiating a tripping mechanism is activated after the elapsed time. When a fault occurs, means for generating at least one fault code is activated. The fault code is stored in at least one non-volatile memory. The fault code is selected from a group consisting of an arc fault interrupt code, a ground fault interrupt code, and a push-to-test interrupt code. The arc fault detector includes at least one means to display the fault code such as at least one LED. At least a first LED indicates an arc fault interrupt code and at least a second LED indicates a ground fault interrupt code. At least a third LED indicates a push-to-test interrupt code.

摘要翻译： 电弧故障检测器包括用于重复测量经过时间的装置。 电弧故障检测器还包括在每个重复的经过时间执行电弧检测的至少一种装置。 启动脱扣机构的装置在经过时间后被激活。 当发生故障时，激活产生至少一个故障代码的装置。 故障代码存储在至少一个非易失性存储器中。 故障代码从由电弧故障中断代码，接地故障中断代码和按压测试中断代码组成的组中选择。 电弧故障检测器包括至少一个显示故障代码的装置，例如至少一个LED。 至少第一个LED指示电弧故障中断代码，并且至少第二个LED指示接地故障中断代码。 至少第三个LED指示一个按需测试中断代码。

公开(公告)号：US08654487B2

公开(公告)日：2014-02-18

申请号：US13045751

申请日：2011-03-11

申请人： Vaske Mikani ,  Amit Nayak

发明人： Vaske Mikani ,  Amit Nayak

IPC分类号： H02H3/00

CPC分类号： H02H1/0015 ,  G01R31/1227 ,  G01R31/14 ,  G01R31/2825 ,  H02H3/044 ,  H02H3/33 ,  H02H3/335 ,  H02H3/44

摘要： In one aspect, a method for detecting arc faults with a dynamically-changeable slope threshold is disclosed. The method may include monitoring a current waveform to determine a peak amplitude of a half cycle and a slope at a zero crossing of a half cycle. An arc fault counter may be incremented if the maximum amplitude of the half cycle and the slope at a zero crossing are greater than a preset magnitude threshold level and the dynamically-changeable slope threshold, respectively. In another aspect, a decay of the amplitude of a predetermined number of half cycles of the current waveform is measured and an arc counter is not incremented, even if the conditions would otherwise indicate an arc counter increment, when the decay is above a decay threshold for greater than a predetermined number of half cycles. An arc fault detection apparatus adapted to carry out the methods, and systems including the arc fault detection apparatus are disclosed, as are various other aspects.

摘要翻译： 一方面，公开了一种用动态可变斜率阈值检测电弧故障的方法。 该方法可以包括监视电流波形以确定半周期的峰值幅度和半周期过零点的斜率。 如果半周期的最大幅度和过零点处的斜率分别大于预设的幅度阈值电平和动态可变斜率阈值，则电弧故障计数器可以递增。 另一方面，当衰减高于衰减阈值时，测量电流波形的预定数量的半周期的振幅的衰减并且电弧计数器不增加，即使条件否则指示电弧计数器增量 大于预定数量的半周期。 公开了适用于执行方法的电弧故障检测装置和包括电弧故障检测装置的系统，以及各种其它方面。

公开(公告)号：US20110249370A1

公开(公告)日：2011-10-13

申请号：US13081146

申请日：2011-04-06

申请人： Amit Nayak ,  Hugh T. Kinsel

发明人： Amit Nayak ,  Hugh T. Kinsel

IPC分类号： H02H3/08

CPC分类号： H02H1/0015 ,  H02H1/04 ,  H02H3/027

摘要： In one aspect, a method of electrical arc fault detection when high frequency (e.g., RF noise) is present is disclosed. The method includes determining if first arcing criterion is met, determining if delay criterion is met, implementing a delay for a delay period if the delay criterion is met, and determining if second arcing criterion is met. If the second arcing criterion is met, then a trip signal may be sent to trip the circuit breaker. In another aspect, the method includes determining if first arcing criterion is met, starting delay period if the first arcing criterion is met, determining if delay criterion is met, and if the delay criterion is met, determining if second arcing criterion is met. An arc fault detection apparatus adapted to carry out the methods, and systems including the arc fault detection apparatus are disclosed, as are various other aspects.

摘要翻译： 一方面，公开了当高频（例如RF噪声）存在时的电弧故障检测方法。 该方法包括确定是否满足第一电弧放射标准，确定是否满足延迟标准，如果满足延迟标准，则实现延迟时间的延迟，以及确定是否满足第二放电准则。 如果满足第二电弧放电标准，则可以发送跳闸信号以跳闸断路器。 在另一方面，该方法包括确定是否满足第一电弧放射标准，如果满足第一电弧放电标准，则启动延迟周期，确定是否满足延迟标准，以及如果满足延迟标准，则确定是否满足第二电弧放电标准。 公开了适用于执行方法的电弧故障检测装置和包括电弧故障检测装置的系统，以及各种其它方面。

公开(公告)号：US20100085206A1

公开(公告)日：2010-04-08

申请号：US12574449

申请日：2009-10-06

申请人： Amit Nayak ,  Carlos Restrepo ,  Brian Timothy McCoy

发明人： Amit Nayak ,  Carlos Restrepo ,  Brian Timothy McCoy

IPC分类号： G09F9/33 ,  H02H3/00

CPC分类号： H02H3/04 ,  H02H1/0015 ,  H02H3/33

摘要： An arc fault detector includes a means for repeatedly measuring an elapsed time. The arc fault detector also includes at least one means to perform arc detection at each repeated elapsed time. Means for initiating a tripping mechanism is activated after the elapsed time. When a fault occurs, means for generating at least one fault code is activated. The fault code is stored in at least one non-volatile memory. The fault code is selected from a group consisting of an arc fault interrupt code, a ground fault interrupt code, and a push-to-test interrupt code. The arc fault detector includes at least one means to display the fault code such as at least one LED. At least a first LED indicates an arc fault interrupt code and at least a second LED indicates a ground fault interrupt code. At least a third LED indicates a push-to-test interrupt code.

摘要翻译： 电弧故障检测器包括用于重复测量经过时间的装置。 电弧故障检测器还包括在每个重复的经过时间执行电弧检测的至少一种装置。 启动脱扣机构的装置在经过时间后被激活。 当发生故障时，激活产生至少一个故障代码的装置。 故障代码存储在至少一个非易失性存储器中。 故障代码从由电弧故障中断代码，接地故障中断代码和按压测试中断代码组成的组中选择。 电弧故障检测器包括至少一个显示故障代码的装置，例如至少一个LED。 至少第一个LED指示电弧故障中断代码，并且至少第二个LED指示接地故障中断代码。 至少第三个LED指示一个按需测试中断代码。

公开(公告)号：US20090198459A1

公开(公告)日：2009-08-06

申请号：US12405340

申请日：2009-03-17

申请人： Mario Bilac ,  Carlos Restrepo ,  Hugh T. Kinsel ,  Amit Nayak

发明人： Mario Bilac ,  Carlos Restrepo ,  Hugh T. Kinsel ,  Amit Nayak

IPC分类号： G01R31/00

CPC分类号： H02H1/0015 ,  G01R31/3277 ,  H02H1/0092 ,  H02H3/33

摘要： An electrical fault detection device for use in a branch of a power circuit that utilizes signals from an AC line current sensor coupled to an electrical distribution line having a primary and neutral lines, a line high-frequency sensor coupled to the electrical distribution line, a differential current sensor coupled to the primary and neutral lines, and a ground fault current sensor coupled to the primary and neutral lines. A signal conditioner receives the signals outputted by AC current line current sensor, the line high frequency sensor, the differential current sensor and the ground fault current sensor and generates a signal indicative of the load current associated with a branch of the power circuit. Output of the signal conditioner is sampled and processed by a processing resource. The processing resource has stored therein data representing a plurality of time-versus-current curves that define a plurality of regions in which tripping may or may not occur. One region has time data and current data that define a time-duration for a particular current magnitude for which no tripping will occur. Another region has time data and current data that define a time-duration of a particular current magnitude for which tripping will occur. Processing resource processes sampled signal to determine the region to which the processed time data and current data correspond, and generates a signal to initiate tripping if the sampled signal yields a time duration for a particular current magnitude that corresponds to a region for which tripping must occur.

摘要翻译： 一种电力故障检测装置，用于利用耦合到具有初级和中性线的配电线路的交流线路电流传感器的信号的电力电路的分支，耦合到配电线路的线路高频传感器， 耦合到主线路和中性线路的差动电流传感器以及耦合到主线路和中性线路的接地故障电流传感器。 信号调节器接收由交流电流线路电流传感器，线路高频传感器，差分电流传感器和接地故障电流传感器输出的信号，并产生指示与电力电路的分支相关联的负载电流的信号。 信号调节器的输出由处理资源进行采样和处理。 处理资源中存储了表示多个时间 - 电流曲线的数据，该曲线定义了可能发生或可能不发生跳闸的多个区域。 一个区域具有定义不发生跳闸的特定电流幅度的时间长度的时间数据和当前数据。 另一个区域具有时间数据和当前数据，其定义了将发生跳闸的特定电流幅度的持续时间。 处理资源处理采样信号以确定处理时间数据和当前数据对应的区域，并且如果采样信号产生对应于必须发生跳闸的区域的特定电流幅度的持续时间，则产生信号以启动跳闸 。