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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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  • AJJewsbury:


    Even if all the generators had been conventional rotating electromagnetic machines - how could the grid have survived a sudden loss of nearly 1.9GW of generation? (at least without load shedding). I can see that Inertia might keep things going (at a gradually declining frequency) for a short while - but for how long before the frequency (and voltage) drop to unacceptable levels? My gut feel is that it wouldn't be very long (a few tens of seconds - or a minute or two perhaps at a complete guess) -  but surely that's nothing like long enough to bring conventional grid-level generation on-line out of the blue to compensate?




    No, it isn’t long enough to bring on a set from cold, but there are other strategies that could have worked, for example setting all running sets to maximum, requesting additional power from the European Interconnections, and even voltage reduction. What we had on 9th August was not sufficient to organise all the things that would have been needed. Additional inertia would have bought the grid more time, and may have bought sufficient time.  


    Regards,


    Alan. 

Reply

  • AJJewsbury:


    Even if all the generators had been conventional rotating electromagnetic machines - how could the grid have survived a sudden loss of nearly 1.9GW of generation? (at least without load shedding). I can see that Inertia might keep things going (at a gradually declining frequency) for a short while - but for how long before the frequency (and voltage) drop to unacceptable levels? My gut feel is that it wouldn't be very long (a few tens of seconds - or a minute or two perhaps at a complete guess) -  but surely that's nothing like long enough to bring conventional grid-level generation on-line out of the blue to compensate?




    No, it isn’t long enough to bring on a set from cold, but there are other strategies that could have worked, for example setting all running sets to maximum, requesting additional power from the European Interconnections, and even voltage reduction. What we had on 9th August was not sufficient to organise all the things that would have been needed. Additional inertia would have bought the grid more time, and may have bought sufficient time.  


    Regards,


    Alan. 

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