ELECTRIC POWER DISTRIBUTION SYSTEM INCLUDING METERING FUNCTION AND METHOD OF EVALUATING ENERGY METERING

摘要

An electric power distribution system (2) is used with an electric power source (4). The electric power distribution system includes a first device (6) exchanging first electric power with the electric power source. The first device exchanges the first electric power with a plurality of second devices (8) and meters first electric energy (10) corresponding to the first electric power. The second devices (8) exchange the first electric power with the first device. Each of the second devices exchanges second electric power as at least part of the first electric power with a number of corresponding electric loads (12) and meter second electric energy (14) corresponding to the second electric power. A processor (16) includes a routine (18;300) that compares the metered first electric energy from the first device with a sum of the metered second electric energy from each of the second devices, and responsively determines proper or improper operation of the electric power distribution system.