Rogowski coil support

[KermtStroomt]

Continuing the discussion from Demand use for 3-phase:
The only hit I could find on ‘Rogowski’ was from 2 years ago, where you stated there is no support for Rogowski coil in Iotawatt. How about today?
How can we measure currents if we can’t connect a split-core CT clamp?
Should we be able to use the Smappee Rogowski coils?
I can change the connector to a stereo jack. SMAPPEE RAGOWSKI COIL 12CM | Project Zero

[overeasy]

I’ve tested and several users have used the Emporia rogowski coils. See these posts:

Flexible CT Sensor

I have an older panel with very limited room in it. There is no way I can get any type of CT sensor on the mains lines other than a flexible Rogowski type. Without doing too much homework I purchased the Emproia one, thinking it would work since it has a built in integrator, but now I see others asking about it and being told it will not work. It DOES pull in information to IotaWatt, but it’s just not accurate, and I’m not sure what custom settings I would use for it. Anyway, true question, is …

Emporia Rogowski Coil setup for IotaWatt

Hi, I have a main panel with very limited access to one of the main wires, no way to get a regular CT on it. I see in this thread there was some good success with getting the Emporia Rogowski Coils (RC) to work: I just wanted to make sure I configure it correctly as there seems to be slightly different instructions in the 2 posts from @Overeasy on making it work. Instructions: Step 1: remove burden resistor from the relevant input inside IotaWatt. Step 2: set burden resistor value in conf…

[KermtStroomt]

Thanks for the links Bob. Unfortunately the Emporia RC states that it does not work on our European 240V… Emporia Vue 200A flexible Current Sensors for Smart Home Device Energy – Emporia Energy

Maybe my customer could try a test with the Smappee RC. If he does, I’ll inform the community here.

[overeasy]

The Smappee doesn’t show their integrator or detail its output and power supply requirements. Also, their current ranges are much higher than non-industrial users would need.

As far as I can tell, the 120V restriction for the Emporia is related to the 12VDC power supply for the integrators. You could easily get a standard 12VDC universal supply (input 80-300VAC) with your plug type and splice in the 12V output cord from the Emporia supply. I see no reason why that wouldn’t work fine. There RC only measures current and is completely voltage agnostic.