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← ScienceWhich failure results when asynchronous generator reactive power limits are exceeded?
A)Voltage collapse at the bus✓
B)Over-excitation of the rotor windings
C)Mechanical resonance in the blades
D)Stator winding thermal runaway
💡 Explanation
Voltage collapse at the connected bus will occur because substantial reactive power demand causes a reduction in voltage, which further reduces the generator's VAR output through dynamic voltage instability, therefore leading to voltage collapse rather than over-excitation or mechanical resonance.
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