z_rex parent
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.
A properly running grid with spinning generators never needs the 10x rated current. More importantly, oscillations are dampened by the rotating masses.
Let alone the transmission lines totally catching fire after a 10X output increase.
You can if the load was 10x under max. before getting tripped.
Misaligned oscillation can occurs under ANY load.