faridmab

ADE7858 Power factor measurements/Phase Currents Calibration

Discussion created by faridmab on Aug 28, 2017
Latest reply on Aug 29, 2017 by aheredia

I have managed to measure RMS currents and voltages. Now, I need to calculate active power using the phase angle between current and voltages phases. I am able to read phase delay correctly between phase voltages, but not between phase currents or between phase voltages and currents. I need to calibrate the phases I believe. I also need to measure this phase angle so that I can figure out the power factor as well.


Currently, I am using a resistive load. I expect to have a zero degree phase. In the meantime I am looking at the phase between currents only and below is what I get:

 

Voltage Phase AC Delay (degrees): 217    ( I expect 240)

Voltage Phase BC Delay (degrees): 146   (I expect 120)

Voltage Phase AB Delay (degrees):62    (I expect 120)

 

I need to know how to conduct my phases currents/phase currents voltages calibration, please help!

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