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Yes it seems with other loads it does work fine.

I see, I thought the LRA would only matter when the compressor is first started. However we are only interested in keeping the cooler running when the grid fails. So when the inverter switches from grid to PV+Battery, the compressor can pull the LRA sometimes even thou it was already started...

Thank for your detailed response, if I understood correctly you gave possible causes: 1. In rush current spike if the relay transfer is slow enough and motor has to start again or; 2. When inverters turn up unsynchronized the current goes up for motor to adjust or; 3. Inverter is not able to...

Hello, I have an 8K inverter (https://www.deyeinverter.com/product/single-phase-string-inverter/sun7-5-8kg.html). When the grid is UP everything works perfectly however when we simulate a grid outage so the inverter switches to PV+Battery then it shutdowns with a AC current overload alarm. The...

Thank you for all your feedback. We will try a few things based on all the information.