公开(公告)号：US20120280717A1

公开(公告)日：2012-11-08

申请号：US13515159

申请日：2009-12-11

申请人： Junhua Fu

发明人： Junhua Fu

IPC分类号： G01R29/02

CPC分类号： G01R31/1218 ,  G01R29/0276 ,  G01R31/14 ,  H02H1/0015

摘要： A method for arc detection includes detecting a changing rate of a signal indicative of light strength, detecting the amplitude of the signal, and indicating an occurrence of an arc if the changing rate of the signal exceeds a first predetermined threshold and the amplitude of the signal exceeds a second predetermined threshold. An arc detecting device, an arc detecting system, and an arc protecting apparatus thereof are provided. The arc detecting system includes a light collector (101) for collecting light, a light converter (103) coupled to the light collector (101) for converting the collected light into an electric signal, and an arc detecting device (106) coupled to the light converter (103) for detecting the occurrence of the arc. The arc detecting device (106) comprises a slope criterion module configured to determine if the changing rate of the signal indicative of the light strength exceeds the first predetermined threshold and an absolute value criterion module configured to determine if the amplitude of the signal exceeds the second predetermined threshold.

摘要翻译： 一种用于电弧检测的方法包括检测指示光强度的信号的变化率，检测信号的幅度，以及如果信号的变化率超过第一预定阈值并且信号的幅度，则指示电弧的出现 超过第二预定阈值。 提供了一种电弧检测装置，电弧检测系统及其电弧保护装置。 电弧检测系统包括用于收集光的集光器（101），耦合到集光器（101）的光转换器（103），用于将收集的光转换成电信号;以及电弧检测装置（106），耦合到 光转换器（103），用于检测电弧的发生。 电弧检测装置（106）包括倾斜标准模块，其被配置为确定指示光强度的信号的变化率是否超过第一预定阈值，绝对值标准模块被配置为确定信号的幅度是否超过第二 预定阈值。