Inverters are not to be connected with parallel communications cables. Because they have no batteries they can only function with GRID and SOLAR and will always be synchronized when grid connected. Each inverter must be equipped with its own set of current transformers (CTs).
[pdf] Lithium battery banks using batteries with built-in Battery Management Systems (BMS) are created by connecting two or more batteries together to support a single application. Connecting multiple lithium b.
[pdf] This example implements the control for a three-phase PV inverter. Such a system can be typically found in small industrial photovoltaic facilities, which are directly connected to the low voltage power grid..
[pdf] 
