Beiträge von Victor!

Thank you very much for your confirmation and support! I will set the thread as solved.

Have a nice day

Thank you for your answers tvbshelly and thgoebel! I finally understood how it works 😀

Then, going back to my original question (correcting the live wire in A, B and C). Is it correct now?

• CTC will measure the total power of the household
• CTB will measure the power consumed by the fridge
• CTA will measure the total power consumed by the cooking plate

Zitat von tvbshelly

I think your choice of words does not match the drawing. I can only see 1 phase there, so to be on the safe side:

Is your installation single-phase or 3-phase?

It is true, sorry for my erroneous wording, I mixed 3-"phase" (120º power signals) with "phase"/neutral wiring. I have a single-phase supply at home, but I would like to measure currents at different points of the same live wire.

Zitat

No. Your sketch depicts a one-phase system with three points of measurement. Thus, each voltage terminal of Shelly pro 3EM has to be supplied with the (one) live voltage. Otherwise, channels A and B don’t give power and voltage figures.

If I supply A, B and C with the same live wire voltage, would it work like this?

Sorry for being so lost, but I found almost no documentation or examples with installation guides and examples.

Thank you thgoebel for the quick response!

What you suggest is that I leave out the other two measurable phases of A and B, and only measure one phase and current with C. Did I understand it correctly?

Is it then not possible somehow to use phases A and B connected to the same live wire of C? I cannot think of any practical connection for this.

Thank you

Hello,

I would like to install the Pro 3EM device as I depict in this schematic. Could you please tell me if it is correct and safe?

• Connect CTC/CTN at the beginning of the phase/neutral wiring distribution of the whole house, to measure the total consumed power in the household
• Pass the three phase wires of the cooking plate through CTA to measure the total power consumed in the cooking plate
• Pass CTB through the phase wire of the fridge
• Integrate the generated power from the solar panels of collected by Shelly 1 PM into the ShellyApp to know the balance of generated and consumed power

Many thanks in advance