The Delta (Ī) connection is a type of three-phase configuration where the phases are connected in a closed circuit, forming a triangle. It is used in industrial systems and applications where a neutral is not needed.
Thers an option using Two Quattro Inverters in a Delta Connection
Victron Quattro inverters*can be configured in three-phase systems, that appears in this video.
Have anybody have made this config?
https://www.youtube.com/watch?v=PuyObRAPNZc (first part video)
the problem with running 2 inverters in delta is that you need to match the delta voltage with the inverter voltage. So Iām curious as to why you have no Neutral connection, and what the line to line and line to ground voltages are.
Personally, I would generate a neutral line by using a Z wound transformer, and connect the inverters in delta - BUT this depends on the voltage matching.
230V phase to neutral gives 405V phase to phase (240/415)
120V phase to neutral gives 205V phase to phase ( 120 degree phase separation, not 180 split phase)
The alternative would be to use a delta star input transformer, and then again you have the neutral available. However, this method requires the transformer carry the whole load power, rather than with the Z wound transformer that only carries part of the load (typically the out of balance loading.