Which consequence results when a hydroelectric plant's turbine experiences runaway speed?

💡 Explanation

Runaway speed causes excessive generator output voltage via electromagnetic induction, potentially exceeding the dielectric strength of insulation leading to breakdown, because voltage increases exponentially with rotational speed. Therefore over-voltage results, rather than temperature increases or environmental effects on water quality.

• Which outcome occurs when exceeding the interrupt rating of circuit breakers protecting a large urban electrical distribution transformer?
• Which outcome results when high drain voltage causes short-channel MOSFET electrons to gain excessive kinetic energy?
• Which risk increases when transmitted signal bandwidth approaches the Nyquist limit in digital communication?
• Which actuator failure results when rapid cycling overheats solenoid coils?
• Which risk increases when a PLC used within a chemical reactor's automated cooling system experiences a buffer overflow?
• Which risk increases when servo motor encoder resolution weakens due to vibrational resonance in a robotic arm performing rapid pick-and-place actions?