Thanks for a fantastic product and community!
I’ve recently got my IoTaWatt up and going. I have a derived 3 phase config. Finding Phase A was pretty simple, as for whatever reason, my place is entirely rigged with lighting and its 3 power circuits and oven all off of “Phase A” - confirmed via power readings and whats wired on the box.
It would appear - which seems odd to me, but hey, I’m not a sparky - that only my Slab Heating (not in use and effectively decomm’ed) and my AC Compressor are using any other phases. My AC is actually a 3 phase unit and also has CT’s on all 3 phases.
My question is - how can I go about determining which is B and which is C and then correlate that to the AC CT’s (3 x CT’s)? If the compressor is on, I’m drawing power on all 3 phases of the Mains, and indeed show that to the AC unit… but just randomly guessing which phase is which seems a complete fools journey.
So how am I best to work out which phase is which. I’m guessing, even if I physically correlated it - I still wouldn’t know which was B and which was C relative to the VT’s “A” phase… or can I somehow ? There’s no colour coding to go by either…
Any help/suggestions would be great