Patent ID: 11860202
Assignee: EI ELECTRONICS LLC
Field: Measurement (Instruments)
Classification: CPC G  H | IPC G

Claim 10:
11. An electronic power meter for monitoring an electrical distribution system providing power to a load, the electronic power meter comprising:
at least one sensor coupled to the electrical distribution system, the at least one sensor configured to measure at least one parameter of the electrical distribution system and generate at least one analog signal indicative of the at least one parameter;
at least one analog-to-digital converter configured to receive the at least one analog signal and convert the at least one analog signal to at least one digital signal;
at least one memory configured to store at least one first firmware, a selection of at least two wiring setup configurations of the electronic power meter and at least one measured and/or calculated parameter of the electrical distribution system, each wiring setup configuration including at least two tests used to verify if the electronic power meter is wired correctly; and
at least one processor that calculates parameters of the electrical distribution system, retrieves the at least two tests from the at least one memory based on the selected wiring setup configuration and determines if the electronic power meter is wired correctly based on executing the retrieved at least two tests using the at least one measured and/or calculated parameters,
wherein the at least one processor determines the electronic power meter is wired incorrectly if at least one test fails, generates a notification indicating which test has failed and generates at least one second firmware to reprogram the electronic power meter to rectify the determined incorrect wiring based on the failed test, the at least one second firmware reprograms the at least one electronic power meter to perform at least one of shifting at least one measured current phase by a predetermined amount and/or reassigning measured voltage values from a first voltage phase input to a second voltage phase input,
wherein the at least one processor executes the at least one second firmware without user intervention, and
wherein the selected wiring setup configuration is a 3 Element Wye configuration and the retrieved at least two tests include a first test to determine if the measured voltages and currents are above a predetermined threshold, a second test to determine if any voltage phases are swapped, a third test to determine if the voltage phases are 120 degrees apart, a fourth test to determine if a current phase is 180 degrees from a corresponding voltage phase, and a fifth test to determine if a current phase is 45 degrees from a corresponding voltage phase.