发明名称 |
LOAD RECOGNITION AND SERIES ARC DETECTION USING BANDPASS FILTER SIGNATURES |
摘要 |
<p>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 1/8 cycle of the alternating current.</p> |
申请公布号 |
WO2004102761(A1) |
申请公布日期 |
2004.11.25 |
申请号 |
WO2004US14829 |
申请日期 |
2004.05.12 |
申请人 |
SQUARE D COMPANY |
发明人 |
WONG, KON, B.;SCOTT, GARY, W.;DVORAK, ROBERT, F. |
分类号 |
H02H1/00;H02H3/44;(IPC1-7):H02H1/00 |
主分类号 |
H02H1/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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