Patent ID: 7221145

Claim:
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.