Which installation must i use if i want to follow up my PV installation and also see which power I use directly while the sun is shining.
I have now 1 wem3080T and 1 wem3080.
The first is connected like a 3fase residential electrical system, and the other one like a single fase PV monotoring system.
Is this correct? The one is 3 fase and the other is single fase. The voltage is different in that way.
Must i make 2 places?
Please give me as much info as possible.
Many thanks.
Hi,
If your grid is 3phase and install a single-phase inverter in one phase , now you want to monitor your solar PV system in IAMMETER-cloud.
1 when you install the energy meter hardware connection, please refer to this wiring diagram.
https://www.iammeter.com/docs/wiring-diagram#4-split-phase-solar-pv-system
2 add both energy meters in IAMMETER-cloud.
please add both WEM3080T(3 phase wifi energy monitor) and WEM3080(single phase energy meter ) into one place in IAMMETER-cloud, select the meter type of WEM3080 to "inverter" and WEM3080T to "grid"
When there is "inverter" meter type in the place of IAMMETER-cloud ,the system will know that it is a solar pv monitoring application.
thx for the info.
everything seems to be working fine like this.
Hello all,
I'm sorry if I read your diagram wrong.
The URL above (https://www.iammeter.com/docs/wiring-diagram#4-split-phase-solar-pv-system) points to a Bi-phase Electrical diagram, not 3phase.
The wire in the middle or black wire is connected to the UN wire and UB and UC to the same phase, so there is no K->L to the Grid Side for CT3, which means no measure from Grid into the black wire (assuming this is one of the 3phase circuit)
I have bought a WEM3080T, but still did not receive it, hence I want to be sure I can use it in a 3phase from Grid circuit, being fed by a single- phase PV, not sure if I need to buy one more WEM3080 (single phase)
Thanks.
Hi:
Yes, the diagram in the above link is for the bi-phase system.
This seems very common in Brazil, that both grid and inverter are both the bi-phase ,then it can be measured by a three-phase energy meter plus a single-phase energy meter (because the three-phase energy meter also supports split-phase usage, so you can consider it as three single-phase energy meter).
If your system is a bi-phase grid + single phase inverter output, then one three-phase energy meter is enough.
As I mentioned above , the three-phase energy meter also supports split-phase usage, you can use two phases to monitor your grid and the left one to monitor the single phase inverter output.