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Arc fault circuit breaker apparatus and related methods

  • US 6,417,671 B1
  • Filed: 11/07/2000
  • Issued: 07/09/2002
  • Est. Priority Date: 11/07/2000
  • Status: Expired due to Fees
First Claim
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1. A method for detecting arc faults and over-currents in a circuit, said method comprising:

  • determining a current in a first pole conductor using a first over-current detection circuit not in contact with the first pole conductor;

    determining a current in a second pole conductor using a second over-current detection circuit not in contact with the second pole conductor; and

    determining a ground fault between at least one of the first pole conductor and a neutral conductor and the second pole conductor and the neutral conductor using a ground fault detection circuit including a transformer surrounding the first pole conductor, the second pole conductor, and the neutral conductor.

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