Transformerless inverter grounding
I would like to confirm the idea that, for transformerless inverters, the PV grounding system's point of return (i.e. where the neutral and ground are connected) should be in the same panel where the PV system is connected. In other words, connecting the PV grounding system to the existing grounding system, if the PV system is connected to a subpanel for instance, could lead to tripping of RCDs upstream of the inverter, up to the main panel.
0 · Share on Twitter