Non invasive 3.0 w/h voltage measurement

Hi,

It's possible to use shematic for non invasive 3.0 without voltage measurement ?

It makes sense or not?

If yes, how adapt the code ?

Regards.

glyn.hudson's picture

Re: Non invasive 3.0 w/h voltage measurement

 Yes, you can use just the CT to make apparent power measurements assuming PF=1 and assuming the voltage is constat. The emonTx firmware example does just this. Just strpip our the RFM12B wireless code if it is not required: https://github.com/openenergymonitor/emonTxFirmware/tree/master/emonTx_SingleCT_Example_

Niii's picture

Re: Non invasive 3.0 w/h voltage measurement

I will try that, thanks for information :).

Niii's picture

Re: Non invasive 3.0 w/h voltage measurement

Hi
Variable "emontx.supplyV" is used in the calculation.
If voltage is constant, I have to set it to 1 ?

Regards

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