Pressure builds within a transformer due to temperature increases sustained A14:E17 an internal fault situation or under excess load, negatively impacting the tank walls and other internal components.



Qualitrol XPRD Extra Large Pressure Relief Device

Mechanical over pressure protection device with integrated directional discharge outlet. Provides pressure relief and insulating fluid containment (requires optional piping) on transformers and load tap changers during over pressure conditions. Automatically reseals once pressure has fallen.