I need a bit f help, Kodak Off Gird OGS5.6 restart every time when Eskom return about 3 to 5 times, goes red restart do this about 3 or 5 times and then stabilize and run 

Kodak Off Gird OGS5.6 connected to 2x up5000 battery, if not for tis it works perfect , what can the issue be . Thank you 

This is most likely due to the instability of the grid voltage when load shedding ends. You could look at getting a switch to delay switching the grid on after it returns.

Have a look here: 

 

what switch do you require for this , to delay it 

 

 

what switch do you require for this , to delay it 

 

I'm off grid, so never had to deal with these, but I guess something like this: https://www.aliexpress.us/item/2255800862939463.html or this: https://lifetide.co.za/product/lifetide-60-amp-automatic-voltage-protector/ should do what you need.