New user here. I’m in AU with 3 phase power very interested in setting up an iotawatt based monitoring kit. I’ve got 27 circuits in total that I want to monitor (including the 3 main lines). I have got access to each of the three phases where the devices will be installed, so tapping into each for voltage references is no problem.
I was hoping to do this with two iotawatt devices, but after reading this thread, the documentation for the device, and playing with the demo UI, I have a few questions about how this might be possible.
I understand that I can use one of the CT inputs as a voltage reference input; hence one of the two iotawatt devices will have two voltage references. What I can’t get my head around is how I would configure the voltage references for each of the three phases in a way that somehow identifies the phase of each of them in order to “link” each of the respective CT inputs. To put another way, I assume that I would need to specify which phase each CT input must reference; it is this that I cannot immediately see a method to do.
The second apparent issue is that there will have to be some circuits from, say, phase C that will need to be measured by the iotawatt device that only has a voltage reference for phase A (given that the other iotawatt device has the voltage references for phases B and C, and all circuits from both phases B and C will exceed 13). This would either need to be done from EmonCMS, or the iotawatt devices will need to talk to eachother in order to share voltage reference data. I have a feeling that neither are possible.
A curly one, I’d say. Does anyone have any ideas?
…Or perhaps I should just get three iotawatt devices 