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ARC spectral analysis system

  • US 5,578,931 A
  • Filed: 06/07/1995
  • Issued: 11/26/1996
  • Est. Priority Date: 10/15/1993
  • Status: Expired due to Fees
First Claim
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1. A method of detecting arcing faults occurring on a power line, comprising the steps of:

  • using a pre-determined arcing fault signal model, which characterizes the behavior of an arcing fault;

    monitoring a load signal parameter indicative of the power flowing through said power line;

    deriving a frequency spectrum of sample frequency components based on said load signal parameter; and

    comparing individual components of said spectrum of sample frequency components to corresponding frequency values of said arcing fault signal model to determine whether an arcing fault exists on said power line.

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