Invention Grant
US07136265B2 Load recognition and series arc detection using bandpass filter signatures
有权
使用带通滤波器特征进行负载识别和串联电弧检测
- Patent Title: Load recognition and series arc detection using bandpass filter signatures
- Patent Title (中): 使用带通滤波器特征进行负载识别和串联电弧检测
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Application No.: US10436671Application Date: 2003-05-13
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Publication No.: US07136265B2Publication Date: 2006-11-14
- Inventor: Kon B. Wong , Gary W. Scott , Robert F. Dvorak
- Applicant: Kon B. Wong , Gary W. Scott , Robert F. Dvorak
- Applicant Address: US IL Palatine
- Assignee: Square D Company
- Current Assignee: Square D Company
- Current Assignee Address: US IL Palatine
- Main IPC: H02H9/08
- IPC: H02H9/08

Abstract:
A method and system for determining whether arcing is present in an electrical circuit includes sensing a change in an alternating current in the circuit and developing a corresponding input signal, analyzing the input signal to determine the presence of broadband noise in a predetermined range of frequencies, and producing a corresponding output signal, and processing the input signal and the output signal in a predetermined fashion to determine whether an arcing fault is present in the circuit. The processing includes determining a type of load connected to the electrical circuit, based at least in part upon the input signal and the output signal, and monitoring high frequency noise in a 20 KHz band for each ⅛ cycle of the alternating current.
Public/Granted literature
- US20040042137A1 Load recognition and series arc detection using bandpass filter signatures Public/Granted day:2004-03-04
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