Burgerman wrote:Let me tell you what really happened as I have been following this.
iainsherriff wrote:I heard the Spanish Power Minister calling that as a possible explanation as well ..........
martin007 wrote:If your theory is correct, what happened will happen again...
Burgerman wrote:And belgium and a few other countries.
Let me tell you what really happened as I have been following this.
All AC generators - every coal, gas, nuclear and even solar all generate AC in most cases from a heavy spinning turbine at a specific AC frequency. Each is connected to the grid one at a time once the 50 or 60 cycle per second frequency is reached. All the 3 phases, and the peaks and valleys MUST align... Or smoke happens! And enerything will trip of fail.
Now because of solar, wind etc theres a big problem. These things have zero flywheel affect that a large turbine driven by steam has. So much less mass to stabilise the AC frequency they just copy whats there with mosfets. And because wind and solar comes and goes, they linked up all the european countries... So that if the sun disapears or if the wind blows strong in one place and not another they all share the resources.
Now...
If theres a big demand. Or a big drop in power usage, or a failure or disconnect of a large area, on a particular generator its electrical load drops, and required power (steam? Gas, nuclear etc) changes. If the load disapears fast, because say an entire country disconnects, or theres a big fault, then theres too much power being generated. That causes the generators to accelerate beyond the 3000rpm or 3600rpm needed to stay in phase with the AC grid.
So as soon as they cant stay in phase, they also disconnect or smoke! So this happens across the network... Now the demand is higher or lower everywhere and the AC frequency gets all out of step and everything trips out and shuts down. You get huge problems and there is a "wave" of AC frequency that doesent match across a huge grid.
So you lose entire countries. Restarting it all up again is also very hard. You are trying to match the AC waveform exactly across hundreds of different generators. And so you can only do this by adding one at a time. So town by town, or small areas, some factories, add another generating station and continue.
So no not an attack by someone, the result of a fault triggering a fragile system into getting out of its ideal frequency range. Aided by less rotating mass, from solar etc. And joining an entire continent together.

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