question

...ehhrr..not quite sure where your problem is, here...but in a three phase system, the "(total) Number of Phases" is "3"...comes natural ;-)

The values for Curent and Power, for each individual phase, can be found under:

..../Ac/Consumption/Lx/Power and .../Ac/Consumption/Lx/Current (change Lx to L1/L2/L3 respectively)

You didn't read the other response...use a transformation to combine these three field into a single one.

Here's a quick example, combining all Power Values (Battery, Grid, PV) from my site into the SUM (of all power values) - just as an example, as technically it does not make much sense, doesn't it:

I short:

1. Create a "normal" query for each field.
2. select the "last" value
3. group by "fill(previous)
4. give each query an Alias Name

...then create a simple transformation of type "add field from calculation" like this:

in short:

1. type: add field from calculation
2. field name: select the Aliases, that you wish to be part of the calculation
3. Type of Calculation: "Total".
4. optionally, give the new field an Alias- Name to be displayed (default will be "Total").

now, use your existing queries for L1, L2 and L3 accordingly.

Hope this helps.