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← ScienceWhich 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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