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I have looked in Ground Fault Protection Low voltage expert guides n° 2 https://download.schneider-electric.com/files?p_enDocType=Technical+leaflet&p_File_Name=DBTP140GUI_E... and
I would like to install ground fault detection for our system to comply with 4.1.1.3 Study 2 Diagram 3.
as below
and the description is
which I still don't know how to sum neutral current when tie bus is on.
Could you please recommend me how to connect NCT and ACB status contact diagram to achieve 4.1.1.3 Study2 Diagram3.
Thank you
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