strange behaviour following rumbles of thunder.....
heard a few rumbles of thunder in the distance and it seems our system may have commenced switching over to emergency supply....it was literally the blink of an eye - not enough for a full switchover and only enough for one of my UPS's to emit a very short beep (and not even long enough for it to switch in fact)....a few seconds later I noticed we were importing 100% from the grid with zero being supplied by the battery......over the next 5 mins or so the grid import gradually reduced as the battery increased to from 0% - 100%......is that normal ???
14 x Aiko Neostar 2p plus 475W panels (6.65 kWP)
Fox EP12 10.4kW usable battery
FOX KH7 7kw hybrid inverter
EN-EPS-BOX-SP gateway
Re: strange behaviour following rumbles of thunder.....
I imagine you will have some errors that show lost utility, but it sounds like it recovered quickly - although the inverter takes a few minutes to run through it’s checking/waiting sequence after an even.

I think a lot depends on how the local power lines run near you, i’ve never known my system (in 5 years) to trip because of lightning but I have heard of others that are more susceptible to it because of the way the power is distributed over ground, in some cases they have fitted an SPD (surge protection) which protect against large fast transients such as you get from lightning strikes on power lines.
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