Which outcome occurs when a high-voltage electric arc persists in a gas-insulated substation's circuit?

💡 Explanation

Arc breakdown causes decomposition because strong electric fields initiate SF6 *dissociation*, releasing fluorine that reacts with the enclosure, therefore creating corrosive products, rather than inert plasma or improved insulation, under sustained arc conditions.

• Which outcome occurs when overheating causes excessive electron-hole pairs in a MOSFET?
• Which symptom indicates cavitation onset in hydraulic turbines?
• In a cantilevered steel beam supporting a balcony, which consequence arises when sustained vibrations match its natural frequency?
• Which outcome occurs when variable-frequency drive (VFD) control fails on a centrifugal pump maintaining constant chilled-water-supply temperature in a large HVAC system?
• Which process leads to a reduced cooling capacity when liquid refrigerant enters the compressor?
• Which outcome occurs when diesel fuel "after-injection" ceases functioning in a modern engine?