3 Phase 127 v / 220 v 60hz system


I’m trying to configur how to accuratly monitore my energy consumption

live-neutral measure 130 volt, live-live 220 v , 60 hz

what is the perfect setup, should I get 3 emonTx and 3 US AC-AC adapter?

Thank you

Yes, the “perfect” set-up will be 3 × emonTx, one for each phase.

However, even though your line - neutral voltage is only 6% above the nominal input voltage of the US a.c. adapter, I cannot be certain that it will both be safe and operate correctly, i.e. give an undistorted sample of the supply waveform, with that degree of over-voltage. I will try to find out for you.