Total Energy values wrongly summed

[jwefers]

Until now, i pulled my power and energy values directly from our (german) grid meter.

At least in Germany, the meter calculates the energy values from the power sums over all three phases. E.g. you pull 50W from phase A and push 25W each on B and C - counters do not move (for both import and export).

 

The Pro 3 EM however seems to calculate the sum as the sum of the three separate phase counters, i.e. in the above scenario, after an hour, i get 50Wh imported and 50Wh exported.

 

This means this build-in total energy counter is useless if you have mixed positive/negative power values.

 

Am i getting this wrong? Is there a hidden setting to fix this?

 

Do i really have to make my own counter as the integral over the sum the power values?

Edited September 5 by jwefers
miscalculate

[jwefers]

okay, ich sehe ich bin nicht der erste und habe die Lösungen auch gefunden.

[omicronCZ]

On 5.9.2024 at 14:37, jwefers said:

okay, ich sehe ich bin nicht der erste und habe die Lösungen auch gefunden.

I'd be interested in your solution, can you publish it here? Thanks in advance