Hi!
We have a combination of IT and TN grounding systems in the country where i live.
Most of the older parts of the grid uses a IT system. This method of grounding is also used in genset applications and maritime emergency generators, however then often with a delta secondary instead of star which is shown in the image bellow.
In effect you either have L1 (230 V) and N (0 V) for single phase or you have L1 (130 V) and L2 (130 V with a 120 degrees phase shift) with no neutral available.
I have a Quattro 230 V 48V/10000VA unit that i am planning to use on a cabin that has 230 V delta connected secondary from the genset that is currently being used. That means that there is no netrual in the power system. Equipment is grounded with a separate PE conductor connected to local ground (literally a buried mesh or spear). A ground fault interrupter is mounted in the main fusebox (or should be per regulations) to ensure that breakers are tripped if equipment shorts to ground. This is due to the ground fault currents in such a system will be too small to trip the MCB.
I cannot find any information on the use of the Victron Quattro in such power grids, would it take damage or trip some protection features if I were to connect L1 and L2 to the input side of the unit ?
Will operation of the unit will be similar to what is described as option 3 in the user manual just without the autotransformer on the output (image attached) ?