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← TechnologyWhich outcome occurs when cyclic overload exceeds transformer's thermal limit?
A)Accelerated dielectric paper insulation degradation✓
B)Increased eddy current losses in core
C)Elevated winding circulating current imbalances
D)Harmonic resonance within transformer windings
💡 Explanation
Excessive overload induces hotspots inside the transformer; the Arrhenius Rate Equation governs insulation breakdown because increased temperature rapidly degrades cellulose paper's structure, therefore reducing its dielectric strength faster rather than causing imbalances or resonance effects.
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