Patent ID: 7183669
Filing Date: 2007-02-27
Classification: G01D,G01R,Y02B,Y04S

Abstract:
1. A monitor comprising: a first sensor which senses a magnitude of power being consumed by a site facility, said site facility comprising at least one main panel bus, at least one external power line electrically connecting said at least one main panel bus to at least one external power source, at least one energy-producing system having at least one energy-producing system bus, at least one first internal power line electrically connecting said at least one main panel bus to said at least one energy-producing system bus, at least one critical load sub-panel bus, at least one second internal power line electrically connecting said at least one energy-producing system bus to said at least one critical load sub-panel bus; said first sensor comprising at least one first sub-sensor and at least one second sub-sensor; said first sub-sensor sensing a current passing through said at least one external power line; said second sub-sensor sensing a net current passing through a combination comprising said at least one first internal power line and said at least one second internal power line; and a second sensor which senses a magnitude of power being produced by said at least one energy-producing system; said second sensor comprising at least one third sub-sensor, said third sub-sensor sensing said net current passing trough said combination comprising said at least one first internal power line and said at least one second internal power line.