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Method and system for detecting arcing faults and testing such system

  • US 6,313,641 B1
  • Filed: 07/01/1999
  • Issued: 11/06/2001
  • Est. Priority Date: 03/13/1995
  • Status: Expired due to Term
First Claim
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1. An arcing fault detection system for an electrical distribution network having a line and neutral conductor connected between a power source and a load, the arcing fault detection system comprising:

  • a single sensor coupled to the line conductor and responsive to series arcs, line-to-neutral arcs and line-to-ground arcs for monitoring a first derivative of electrical current carried by the line conductor and generating a sensor signal representing said first derivative of electrical current; and

    means for generating an arc-indicative signal in response to said sensor signal having characteristics indicative of any arcing fault producing series arcs, line-to-neutral arcs or line-to-ground arcs.

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