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Arc fault detection and confirmation using voltage and current analysis

  • US 7,460,346 B2
  • Filed: 09/15/2005
  • Issued: 12/02/2008
  • Est. Priority Date: 03/24/2005
  • Status: Expired due to Fees
First Claim
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1. A method of detecting an arc fault in an electrical circuit, comprising:

  • recording phase plane plot data of current versus voltage for at least one electrical cycle of an alternating current signal; and

    applying a phase plane plot arc fault monitoring algorithm to the phase plane plot data to determine whether an arc fault is present, the phase plane plot arc fault monitoring algorithm comprising one or more sub-algorithms comprising one or more phase plane plot arc fault detection methods.

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