Hi,
I am using TIDM-THREEPHASEMETER-F6779 3 phase energy measurement reference design and added extra circuits. I need to measure 3phase voltage,current and power
For one of my application, i am using 3 numbers 12V step down transformer to measure the 3phase voltages. I am using these transformer mainly to isolate the high voltage from my board. For current measurement, i am using 3 current transformers. With this set up, when i do calibration using GUI application, i get wrong value of output voltage. Voltage reads correctly 13.5V when not calibrated. I just want that instead of 13V, it should show 230V. Since the number of turns is fixed in transformer, so i think it should give be possible to do such calibration. My application doesn't require exact measurement and +/-5V difference is acceptable.
I want to know if it is possible to do such calibration. When i try to do such calibration, and read the calibration factor, it shows negative value and after that when i try to change the calibration value it doesn't change at all.