Invention Grant
- Patent Title: Arc detection using load recognition, harmonic content and broadband noise
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Application No.: US10107621Application Date: 2002-03-27
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Publication No.: US07068480B2Publication Date: 2006-06-27
- Inventor: Kon B. Wong , Gary W. Scott
- Applicant: Kon B. Wong , Gary W. Scott
- 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 of determining whether arcing is present in an electrical circuit includes sensing a change in 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.
Public/Granted literature
- US20030072113A1 Arc detection using load recognition, harmonic content and broadband noise Public/Granted day:2003-04-17
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