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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

Parents
  • Yes, but you have to remember that there is still a lot optimised for 50 Hz, from older passenger lefts, through to the humble clock-radio, where the 50Hz signal is still used for the derivation of the “seconds” count. In fact, that is why you will often see prolonged frequency measurements above 50Hz, as there is a statutory obligation to keep the time correct over a 24 hour period. 


    The other her issue regarding inverter drives for generation, is that there is not as much fault current available compared to a large mechanical set, say a 500MW generator for example. This, ultimately will affect close on 100 years of power system protection theory, overload characteristics, and grading. A lower inertia grid is coming, and the supply industry will adapt, but where the reliance was the inertia inherent in a large generating station, demand reduction is more likely with low inertia, simply because nothing else is fast enough to respond. Even Dinorwig pumped storage is relatively slow now for a low inertia system. The turbines usually spin in air at synchronous speed, and it can ramp from zero to 1800MW in about 16 seconds from pressing the start button. When the upper lake is full, it can run for about six hours before running short of water. 


    Regards,


    Alan.
Reply
  • Yes, but you have to remember that there is still a lot optimised for 50 Hz, from older passenger lefts, through to the humble clock-radio, where the 50Hz signal is still used for the derivation of the “seconds” count. In fact, that is why you will often see prolonged frequency measurements above 50Hz, as there is a statutory obligation to keep the time correct over a 24 hour period. 


    The other her issue regarding inverter drives for generation, is that there is not as much fault current available compared to a large mechanical set, say a 500MW generator for example. This, ultimately will affect close on 100 years of power system protection theory, overload characteristics, and grading. A lower inertia grid is coming, and the supply industry will adapt, but where the reliance was the inertia inherent in a large generating station, demand reduction is more likely with low inertia, simply because nothing else is fast enough to respond. Even Dinorwig pumped storage is relatively slow now for a low inertia system. The turbines usually spin in air at synchronous speed, and it can ramp from zero to 1800MW in about 16 seconds from pressing the start button. When the upper lake is full, it can run for about six hours before running short of water. 


    Regards,


    Alan.
Children
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