Arc fault detector with circuit interrupter
    1.
    发明申请
    Arc fault detector with circuit interrupter 有权
    电弧断路器电弧故障检测器

    公开(公告)号:US20060212235A1

    公开(公告)日:2006-09-21

    申请号:US11357708

    申请日:2006-02-17

    IPC分类号: G01R31/00

    摘要: There is here disclosed a method and apparatus for detecting the occurrence of arcing of a conductor by monitoring the current on an AC power line. The signal detected is split and directed along four separate paths to generate four signals having separate characteristics which represent the current in the line. A first path is for a signal representative of the current flowing in the line. A second path is for a signal having a pulse for each occurrence of a positive step change in current that is significant and has a di/dt value above a predetermined value. A third path is for a signal having a pulse for each occurrence of a negative step change in current that is significant and has a di/dt value above a predetermined value. A fourth path is for a signal having a voltage level representative of the broadband noise signal on the line. Using at least one of five different methods in combination with one of three input signals, a reference signal designated as “SINE” is generated. The SINE signal generated in combination with a CURRENT input is used to produce a control waveform “DELTA”. DELTA can be represented as a relative value or as an absolute difference between the SINE and the CURRENT. Each occurring half cycle of the DELTA signal is analyzed by, for example, a micro- controller for specific identifiable characteristics found to indicate the presence of arcing. Upon the detection of arcing, an output signal can be generated to activate a circuit interrupting mechanism, sound an audio alarm and/or alert a central monitoring station.

    摘要翻译: 这里公开了通过监视交流电源线上的电流来检测导体的电弧发生的方法和装置。 检测到的信号被分离并且沿着四个分开的路径引导,以产生具有表示线路中的电流的分离特征的四个信号。 第一路径是用于表示在线路中流动的电流的信号。 第二路径是用于具有脉冲的信号,每次发生电流的正阶跃变化是有效的并且具有高于预定值的di / dt值。 第三路径用于具有脉冲的信号,每个脉冲的电流的负阶跃变化是有效的并且具有高于预定值的di / dt值。 第四路径是用于具有表示线路上的宽带噪声信号的电压电平的信号。 使用与三个输入信号中的一个组合的五种不同方法中的至少一种,生成被指定为“SINE”的参考信号。 与CURRENT输入相结合产生的SINE信号用于产生控制波形“DELTA”。 DELTA可以表示为SINE和CURRENT之间的相对值或绝对差值。 每个出现的DELTA信号的半周期通过例如微控制器进行分析,该微控制器用于指示电弧存在的特定可识别特征。 当检测到电弧时,可以产生输出信号以激活电路中断机构,发出声音报警和/或提醒中央监控站。

    ARC FAULT DETECTOR WITH CIRCUIT INTERRUPTER
    3.
    发明申请
    ARC FAULT DETECTOR WITH CIRCUIT INTERRUPTER 有权
    具有电路中断器的ARC故障检测器

    公开(公告)号:US20110181296A1

    公开(公告)日:2011-07-28

    申请号:US13080040

    申请日:2011-04-05

    IPC分类号: G01R31/02

    摘要: There is here disclosed a method and apparatus for detecting the occurrence of arcing of a conductor by monitoring the current on an AC power line. The signal detected is split and directed along four separate paths to generate four signals having separate characteristics which represent the current in the line. A first path is for a signal representative of the current flowing in the line. A second path is for a signal having a pulse for each occurrence of a positive step change in current that is significant and has a di/dt value above a predetermined value. A third path is for a signal having a pulse for each occurrence of a negative step change in current that is significant and has a di/dt value above a predetermined value. A fourth path is for a signal having a voltage level representative of the broadband noise signal on the line. Using at least one of five different methods in combination with one of three input signals, a reference signal designated as “SINE” is generated. The SINE signal generated in combination with a CURRENT input is used to produce a control waveform “DELTA”. DELTA can be represented as a relative value or as an absolute difference between the SINE and the CURRENT. Each occurring half cycle of the DELTA signal is analyzed by, for example, a micro-controller for specific identifiable characteristics found to indicate the presence of arcing. Upon the detection of arcing, an output signal can be generated to activate a circuit interrupting mechanism, sound an audio alarm and/or alert a central monitoring station.

    摘要翻译: 这里公开了通过监视交流电源线上的电流来检测导体的电弧发生的方法和装置。 检测到的信号被分离并且沿着四个分开的路径引导,以产生具有表示线路中的电流的分离特征的四个信号。 第一路径是用于表示在线路中流动的电流的信号。 第二路径是用于具有脉冲的信号,每次发生电流的正阶跃变化是有效的并且具有高于预定值的di / dt值。 第三路径用于具有脉冲的信号,每个脉冲的电流的负阶跃变化是有效的并且具有高于预定值的di / dt值。 第四路径是用于具有表示线路上的宽带噪声信号的电压电平的信号。 使用与三个输入信号中的一个组合的五种不同方法中的至少一种,生成被指定为“SINE”的参考信号。 与CURRENT输入相结合产生的SINE信号用于产生控制波形“DELTA”。 DELTA可以表示为SINE和CURRENT之间的相对值或绝对差值。 每个发生的DELTA信号的半周期通过例如微控制器进行分析,该微控制器用于指示电弧存在的特定可识别特征。 当检测到电弧时,可以产生输出信号以激活电路中断机构,发出声音报警和/或提醒中央监控站。

    ARC FAULT DETECTOR WITH CIRCUIT INTERRUPTER
    5.
    发明申请
    ARC FAULT DETECTOR WITH CIRCUIT INTERRUPTER 有权
    具有电路中断器的ARC故障检测器

    公开(公告)号:US20080140354A1

    公开(公告)日:2008-06-12

    申请号:US12032431

    申请日:2008-02-15

    IPC分类号: G01R31/00

    摘要: There is here disclosed a method and apparatus for detecting the occurrence of arcing of a conductor by monitoring the current on an AC power line. The signal detected is split and directed along four separate paths to generate four signals having separate characteristics which represent the current in the line. A first path is for a signal representative of the current flowing in the line. A second path is for a signal having a pulse for each occurrence of a positive step change in current that is significant and has a di/dt value above a predetermined value. A third path is for a signal having a pulse for each occurrence of a negative step change in current that is significant and has a di/dt value above a predetermined value. A fourth path is for a signal having a voltage level representative of the broadband noise signal on the line. Using at least one of five different methods in combination with one of three input signals, a reference signal designated as “SINE” is generated. The SINE signal generated in combination with a CURRENT input is used to produce a control waveform “DELTA”. DELTA can be represented as a relative value or as an absolute difference between the SINE and the CURRENT. Each occurring half cycle of the DELTA signal is analyzed by, for example, a micro-controller for specific identifiable characteristics found to indicate the presence of arcing. Upon the detection of arcing, an output signal can be generated to activate a circuit interrupting mechanism, sound an audio alarm and/or alert a central monitoring station.

    摘要翻译: 这里公开了通过监视交流电源线上的电流来检测导体的电弧发生的方法和装置。 检测到的信号被分离并且沿着四个分开的路径引导,以产生具有表示线路中的电流的分离特征的四个信号。 第一路径是用于表示在线路中流动的电流的信号。 第二路径是用于具有脉冲的信号,每次发生电流的正阶跃变化是有效的并且具有高于预定值的di / dt值。 第三路径用于具有脉冲的信号,每个脉冲的电流的负阶跃变化是有效的并且具有高于预定值的di / dt值。 第四路径是用于具有表示线路上的宽带噪声信号的电压电平的信号。 使用与三个输入信号中的一个组合的五种不同方法中的至少一种,生成被指定为“SINE”的参考信号。 与CURRENT输入相结合产生的SINE信号用于产生控制波形“DELTA”。 DELTA可以表示为SINE和CURRENT之间的相对值或绝对差值。 每个发生的DELTA信号的半周期通过例如微控制器进行分析,该微控制器用于指示电弧存在的特定可识别特征。 当检测到电弧时,可以产生输出信号以激活电路中断机构,发出声音报警和/或提醒中央监控站。

    Arc fault detector with circuit interrupter
    6.
    发明授权
    Arc fault detector with circuit interrupter 有权
    电弧断路器电弧故障检测器

    公开(公告)号:US07333920B2

    公开(公告)日:2008-02-19

    申请号:US11357708

    申请日:2006-02-17

    IPC分类号: G01R31/00

    摘要: There is here disclosed a method and apparatus for detecting the occurrence of arcing of a conductor by monitoring the current on an AC power line. The signal detected is split and directed along four separate paths to generate four signals having separate characteristics which represent the current in the line. A first path is for a signal representative of the current flowing in the line. A second path is for a signal having a pulse for each occurrence of a positive step change in current that is significant and has a di/dt value above a predetermined value. A third path is for a signal having a pulse for each occurrence of a negative step change in current that is significant and has a di/dt value above a predetermined value. A fourth path is for a signal having a voltage level representative of the broadband noise signal on the line. Using at least one of five different methods in combination with one of three input signals, a reference signal designated as “SINE” is generated. The SINE signal generated in combination with a CURRENT input is used to produce a control waveform “DELTA”. DELTA can be represented as a relative value or as an absolute difference between the SINE and the CURRENT. Each occurring half cycle of the DELTA signal is analyzed by, for example, a micro-controller for specific identifiable characteristics found to indicate the presence of arcing. Upon the detection of arcing, an output signal can be generated to activate a circuit interrupting mechanism, sound an audio alarm and/or alert a central monitoring station.

    摘要翻译: 这里公开了通过监视交流电源线上的电流来检测导体的电弧发生的方法和装置。 检测到的信号被分离并且沿着四个分开的路径引导,以产生具有表示线路中的电流的分离特征的四个信号。 第一路径是用于表示在线路中流动的电流的信号。 第二路径是用于具有脉冲的信号,每次发生电流的正阶跃变化是有效的并且具有高于预定值的di / dt值。 第三路径用于具有脉冲的信号,每个脉冲的电流的负阶跃变化是有效的并且具有高于预定值的di / dt值。 第四路径是用于具有表示线路上的宽带噪声信号的电压电平的信号。 使用与三个输入信号中的一个组合的五种不同方法中的至少一种,生成被指定为“SINE”的参考信号。 与CURRENT输入相结合产生的SINE信号用于产生控制波形“DELTA”。 DELTA可以表示为SINE和CURRENT之间的相对值或绝对差值。 每个发生的DELTA信号的半周期通过例如微控制器进行分析,该微控制器用于指示电弧存在的特定可识别特征。 当检测到电弧时,可以产生输出信号以激活电路中断机构,发出声音报警和/或提醒中央监控站。

    Arc fault detector with circuit interrupter
    7.
    发明授权
    Arc fault detector with circuit interrupter 有权
    电弧断路器电弧故障检测器

    公开(公告)号:US07003435B2

    公开(公告)日:2006-02-21

    申请号:US10263919

    申请日:2002-10-03

    IPC分类号: G01R31/00

    摘要: There is here disclosed a method and apparatus for detecting the occurrence of arcing of a conductor by monitoring the current on an AC power line. The signal detected is split and directed along four separate paths to generate four signals having separate characteristics which represent the current in the line. A first path is for a signal representative of the current flowing in the line. A second path is for a signal having a pulse for each occurrence of a positive step change in current that is significant and has a di/dt value above a predetermined value. A third path is for a signal having a pulse for each occurrence of a negative step change in current that is significant and has a di/dt value above a predetermined value. A fourth path is for a signal having a voltage level representative of the broadband noise signal on the line. Using at least one of five different methods in combination with one of three input signals, a reference signal designated as “SINE” is generated. The SINE signal generated in combination with a CURRENT input is used to produce a control waveform “DELTA”. DELTA can be represented as a relative value or as an absolute difference between the SINE and the CURRENT. Each occurring half cycle of the DELTA signal is analyzed by, for example, a micro-controller for specific identifiable characteristics found to indicate the presence of arcing. Upon the detection of arcing, an output signal can be generated to activate a circuit interrupting mechanism, sound an audio alarm and/or alert a central monitoring station.

    摘要翻译: 这里公开了通过监视交流电源线上的电流来检测导体的电弧发生的方法和装置。 检测到的信号被分离并且沿着四个分开的路径引导,以产生具有表示线路中的电流的分离特征的四个信号。 第一路径是用于表示在线路中流动的电流的信号。 第二路径是用于具有脉冲的信号,每次发生电流的正阶跃变化是有效的并且具有高于预定值的di / dt值。 第三路径用于具有脉冲的信号,每个脉冲的电流的负阶跃变化是有效的并且具有高于预定值的di / dt值。 第四路径是用于具有表示线路上的宽带噪声信号的电压电平的信号。 使用与三个输入信号中的一个组合的五种不同方法中的至少一种,生成被指定为“SINE”的参考信号。 与CURRENT输入相结合产生的SINE信号用于产生控制波形“DELTA”。 DELTA可以表示为SINE和CURRENT之间的相对值或绝对差值。 每个发生的DELTA信号的半周期通过例如微控制器进行分析,该微控制器用于指示电弧存在的特定可识别特征。 当检测到电弧时,可以产生输出信号以激活电路中断机构,发出声音报警和/或提醒中央监控站。