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Electrical outages. cyber attacks ?

What's the chances of the power outages and airport problems being cyber attacks.     Is that possible.   I would think so  ?


Gary

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  • "If you severely overload an inverter it switches off immediately" My experience is rather different in that I have come across several lighting emergency supplies which ran the lighting via a bypass until a power cut whereupon the load was transferred to the inverter via a short break system. On asking why, I was told that under fault conditions the inverter wold continued to supply full load current (but no more) hence any overcurrent protection on the main feeds would never operate. By having the system normally supplied via a bypass, sufficient fault current could be supplied to operate the protection under normal supply conditions.

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  • "If you severely overload an inverter it switches off immediately" My experience is rather different in that I have come across several lighting emergency supplies which ran the lighting via a bypass until a power cut whereupon the load was transferred to the inverter via a short break system. On asking why, I was told that under fault conditions the inverter wold continued to supply full load current (but no more) hence any overcurrent protection on the main feeds would never operate. By having the system normally supplied via a bypass, sufficient fault current could be supplied to operate the protection under normal supply conditions.

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