Which risk increases when a substation transformer's load unexpectedly surges?

💡 Explanation

Increased corona discharge events happen because surge currents boost the local electric fields beyond inherent breakdown tolerances, enabling ionization of surrounding air, therefore leading to partial discharges rather than suppressed currents or core material changes.

• Which mechanism causes rapid magnetic domain reversal in a stressed ferromagnetic crystal?
• Which outcome can occur in entangled qubits transmitted via fiber optic cable due to polarization changes?
• Which consequence results when defects alter the band gap?
• Which outcome occurs when water ingresses into liquid desiccant dehumidifier during silica gel regeneration phase?
• Which mechanism causes deviations in atomic clock rates near massive geological formations?
• Which outcome limits ethene production when reactor pressure increases?