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Two InfiniSolar 10kW Hybrid 3-Phase Inverters reading different input voltages



Good Day All,


I have two InfiniSolar 10kW Hybrid 3-Phase Inverters. The two inverters are connected in parallel, with cables of each inverter connected together. AC input side runs from a bus-bar pass a breaker into the two inverters. Length of cables is almost the same (just a few mm difference), thus, it is not a volt drop problem.

However, I am experiencing a problem with one inverter displaying +/-223VAC and the other inverter is displaying +/-210VAC on the LCD and even on the monitoring software. The inverters are charging my batteries fine and there is no firmware difference between the two inverters. When a reading is taken from the bus-bar and AC input terminals of the two inverters I do receive +/-223VAC for both inverters.


Can someone please assist me with this problem of the inverters reading different AC input voltages although they are connected in parallel?

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