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← ScienceWhich outcome occurs when a power electronic capacitor in a wind turbine converter exceeds its rated transient current?
A)Dielectric material undergoes catastrophic breakdown✓
B)Reduced bearing stress in generator shaft
C)Increased power output due to overvoltage
D)Improved grid stability for frequency variations
💡 Explanation
Capacitor failure causes dielectric breakdown because excessive current creates localized heating, triggering thermal runaway. This thermally-driven destruction exceeds the capacitor's voltage handling capability, therefore destruction occurs, rather than voltage being maintained by protective circuits.
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