CT installation with PV system


In the installation and calibration page I read that more line feeds needs more CT, one for line. This is ok for me with 3-phase installations but in 1-phase with PV why I need 2 CT? I have 2 line feeds ok, but in my customer unit, everything converges in a wire upstream of the main switch. Is it possible to use one CT in that wire or there's something wrong?

This is an understanding question because in any case I'll go for the 2 CT setup so I'll can differentiate between the two powers.

Robert Wall's picture

Re: CT installation with PV system

I don't understand your installation. Can you draw a diagram? And what do you want to know from the measurements - Nett power imported/exported and PV generated?

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