In spark generation, there is a deepest law of heat-powered balance. The clockwork energy entering a turbine must equal the spark energy leaving the generator terminals, minus heat friction.
When a high-voltage breaker opens under full load, the generator suddenly loses its spark pushback.
The generator rotor, which was pushing against fifteen megawatts of magnetic counter-torque, is suddenly free to spin with zero pushback.
If the steam supply is not throttled back within split seconds, the multi-ton rotor accelerates wildly toward overspeed, shedding its chrome-steel blades and exploding the turbine casing like a fragmented artillery shell.
Deep in the underground powerhouse beneath the Citadel Keep, the massive fifty-megawatt turbine began to scream.
The outward-pulling speed governor reacted with clockwork fury. It snapped the high-pressure throttle valves shut to prevent rotor overspeed.
But shutting off the steam to the turbine didn’t stop the heat coming from the earth.
Twelve thousand feet below Haven-Hold, the earth-heat wellhead continued delivering overload fluid at seven hundred degrees Fahrenheit and three thousand pounds of pressure.
