TIDUF25 june 2023 ADS131M08 , MSPM0G1507
This section is an example for one phase. Repeat these steps for the other two phases.
After performing gain correction for voltage and current, complete gain correction for active power. Gain correction for active power is done differently in comparison to voltage and current. Although, conceptually, calculating the active energy % error as is done with voltage and power can be done, avoid using this method because it is not the most accurate.
The best option to get the Correction (%) is directly from the reference meters measurement error of the active power. This error is obtained by feeding energy pulses to the reference meter. To perform active power calibration, complete the following steps: