Patent ID: 11940476
Assignee: ANALOG DEVICES INTERNATIONAL UNLIMITED COMPANY
Field: Measurement (Instruments)
Classification: CPC G | IPC G

Claim 18:
19. A method of determining a power measurement of a three wire or a four wire three-phase power line using a three-phase power meter, the three-phase power line comprising a plurality of conductors, the method comprising:
receiving, using a processing unit, a plurality of signals indicative of voltages between respective pairs of conductors;
determining whether the three-phase power meter is coupled to a three wire power line based on only 1) a first phase-to-phase voltage and 2) a second phase-to-phase voltage or a four wire power line based on only 1) the first phase-to-phase voltage, 2) the second phase-to-phase voltage, and 3) a phase-to-neutral voltage; and
processing the plurality of signals, using the processing unit, in order to determine the power being transferred on the three-phase power line, wherein the processing of the plurality of signals is dependent upon whether the meter is coupled to a three wire or four wire power line.