Hello,
I made several installations with Victron components, but only up to 10 kWp of installed PV power (A1 type). I have some customers, who want to have more PV power, which leads to another type of PV installation (A2 type) and another requirements from distribution network operator (DNO) for grid protections, especially for undervoltage levels. Minimal value of undervoltage protection in compliant grid code EN50549-1 configuration is limited to 0.78 Un, but our DNO in the Czech Republic have requirement to set first undervoltage level to 0.70 Un and second level to 0.45 Un for these types of installation with higher installed PV power.
Is 0.78 Un hard limitation (some HW architecture limitation) or is only SW limitation and could be decreased to lower value?
