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Simplified power monitoring system for electrical panels

  • US 7,221,145 B2
  • Filed: 03/26/2002
  • Issued: 05/22/2007
  • Est. Priority Date: 11/30/2001
  • Status: Expired due to Term
First Claim
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1. A power monitoring system comprising:

  • (a) a first current sensor suitable to sense changing electrical energy within a first conductor to a first load, said first current sensor providing a first signal;

    (b) a second current sensor suitable to sense changing electrical energy within another conductor to a second load, said second current sensor providing a second signal;

    (c) a first electrical interconnection of a first voltage potential and said first load, said first electrical interconnection comprising said first conductor;

    (d) an electrical interconnection of said first voltage potential and said second load, said interconnection not including said first conductor; and

    (e) a power monitor that determines,(i) a first power measurement associated with said first load based upon, at least in part, said first signal and said first voltage potential, sensed at a point common to said first interconnection and to said interconnection of said first voltage potential and said second load; and

    (ii) a second power measurement associated with said second load based upon, at least in part, said second signal and said first voltage potential, sensed at a point common to said first interconnection and to said interconnection of said first voltage potential and said second load.

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