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Which risk increases when a power transmission line experiences surges?

A)Dielectric breakdown in surge capacitors
B)Increased corona discharge from conductors
C)Magnetic saturation in transformer cores
D)Elevated joule heating within cabling

💡 Explanation

Dielectric breakdown is more likely because transient surges sharply raise voltage across surge capacitors, exceeding the dielectric strength and causing failure via dielectric breakdown, therefore components short-circuit rather than handling normal grid fluctuations.

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