I’m going to both agree and disagree Agree The older inverters ( Schneider, Outback, etc) your drawing is correct. Disagree For many new inverters ( sol ark, ev4, fortress) they bring ac coupling into the inverter directly. Usually on the generator input and not in the backup loads panel. And I will also disagree about the statement that these inverters are not designed for ac coupling. Agreed that the earlier non rule 21 compliant versions didn’t have any internal control and required external relay control to prevent overcharge. Newer versions of Schneider, OB, have frequently shift which works with newer gt inverters to address the ac coupling overcharge concerns. While creating potential new issues for loads with up to 64 hz. Jay On Oct 28, 2023, at 2:15 PM, William Miller via RE-wrenches <re-wrenches@lists.re-wrenches.org> wrote:
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