Effects of Non-Synchronized Parallel Inverters on Circulating Currents, Harmonics, Busbar Life

what are the effects of non synchronized inverters connected parallel ?regarding the circulating current and harmonic current? and what would be its effect on bus bar 3Poles system life time and loading ?

Hi Farah-As David Ashton pointed out in your other post, bad things happen if the inverters are not synchronized.Since they are not synchronized, the phase relationship between them will be constantly changing.  Look at the worst-case scenario:  two inverters with the outputs 180 degrees out of phase. Both inverters would draw maximum current until one or both shut down or failed.The net output would be zero.-Rick