My experience with SW inverters not synced with a cable is that they would drift to 180 degrees out of sync over a period of about 20 minutes. I could measure phase to phase and see it go from ~240VAC to 0VAC in that time frame. In another 20 minutes or so the volts would creep back up to 240 again.
William Miller Miller Solar.com 805-438-5600 www.millersolar.com On Wed, Jul 15, 2026 at 6:57 AM > >> "Magic Stacking" was when you wired them in 120/240 and used a generator >> or grid power to sync the output waveforms. That waveform would stay >> synced for quite some time, days if not weeks, as long as you didn't load >> them more than 75%. <http://www.members.re-wrenches.org> >> >
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