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On loss of power these inverters cut off within 20 ms or so.
20ms are exactly 1/50th of a second i.e. our grid frequency I think there’s some more leeway. A whole oscillation being gone surely is suspicious and you want to shut off but that might take another millisecond or two.
It’s not a hard realtime cutoff spec, more a relais native actuation time. And from the behaviour I’ve seen they are ramping up slowly over minutes when the mains power is back, which seems a sensible thing to do.
20ms are exactly 1/50th of a second i.e. our grid frequency I think there’s some more leeway. A whole oscillation being gone surely is suspicious and you want to shut off but that might take another millisecond or two.
It’s not a hard realtime cutoff spec, more a relais native actuation time. And from the behaviour I’ve seen they are ramping up slowly over minutes when the mains power is back, which seems a sensible thing to do.