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← TechnologyWhich outcome occurs when increased reactive power loads cause a voltage collapse in a power grid?
A)Increased transmission line insulation breakdown
B)System-wide frequency instability cascade✓
C)Harmonic distortions minimize filter effectiveness
D)Transformer core saturation exacerbates heating
💡 Explanation
A voltage collapse leads to frequency instability because under-voltage load shedding activates in response to falling voltage, which then reduces generation, exacerbating under-frequency; therefore a frequency instability cascade follows rather than isolated component stress, given network interdependencies.
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