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A comment on 2025 Iberia Blackout Report. Parent comment

Re:2025 Iberia Blackout Report by z_rex on Monday June 23, 2025 @07:35PM (#44361327)
A spinning generator is not outputting 10x it's rated current over any significant amount of time. You can only add so much steam or fuel to a turbine, and the rotor has a lot of inertia, but not enough to account for 10X its rated capacity for a second. The electrical switchyards would trip nearly instantaneously if it's connected plant output 10X its rated input.
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Re:2025 Iberia Blackout Report by egberts1 on Monday June 23, 2025 @07:45PM (#44361386)
You can if the load was 10x under max. before getting tripped.

Misaligned oscillation can occurs under ANY load.

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Re:2025 Iberia Blackout Report by javawizard on Monday June 23, 2025 @07:53PM (#44361436)
Batteries would also be able to 10x if their load was 10x under max, so I'm not sure how this is relevant to GP's point.
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Re:2025 Iberia Blackout Report by lobochrome on Monday June 23, 2025 @08:11PM (#44361538)
The inverter would melt presumably.
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Re:2025 Iberia Blackout Report by Geezus_42 on Monday June 23, 2025 @08:22PM (#44361603)
Just looking for an excuse. Lol
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Re:2025 Iberia Blackout Report by zekrioca on Monday June 23, 2025 @08:27PM (#44361632)
Let alone the transmission lines totally catching fire after a 10X output increase.
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Re:2025 Iberia Blackout Report by Gud on Tuesday June 24, 2025 @03:23AM (#44363664)
Where are you getting this information from?

Although I’m hardly an expert on power lines(my factory produces HV switchgear), a 1s short circuit current rating of 10x(actually more) is normal, standard to IEC norms.

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Re:2025 Iberia Blackout Report by zekrioca on Tuesday June 24, 2025 @07:42PM (#44372249)
Arcing.
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Re:2025 Iberia Blackout Report by scotty79 on Wednesday June 25, 2025 @04:00AM (#44374736)
I think they meant 10x current not 10x voltage, so no arcing.
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Re:2025 Iberia Blackout Report by cyberax on Tuesday June 24, 2025 @02:23AM (#44363342)
A properly running grid with spinning generators never needs the 10x rated current. More importantly, oscillations are dampened by the rotating masses.
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