wrong calculation of active power

My meter equipment shows less power than the system, parameters and connections were checked and everything was correct, the current and voltage parameters are correct but the power parameter is wrong, what could happen?

Thread Status
3
271
2
0
0

Sort replies by:

Hi,

I think the most possible reason is the phase mismatch in installation.

Power up the energy meter by one phase voltage but clamp the CT to the wire of another phase.

Like this https://www.iammeter.com/newsshow/blog-meter-accuracy#phase-mismatch-in-installation

esta bien conectado, aun sigue la medición de potencia errónea 

Please let us know the specific power reading of each phase(if possible ,please give me a snapshot of the power reading).

And also let me know the correct power reading it would be.

esta bien conectado, aun sigue la medición de potencia errónea 
Looks like you are new here. Register for free, learn and contribute.