What Is an Oil-Filled Capacitor?
An oil-filled capacitor is a type of capacitor that contains oil.
This capacitor is utilized in scenarios demanding stability under high voltage or temperature conditions. The oil serves as an insulator, dispersing heat and electrical stress generated during current flow, thereby safeguarding the capacitor’s internal structure. This mechanism prolongs the capacitor’s lifespan and ensures its stable performance.
In addition, the oil acts as a cooling medium. For capacitors with large capacities or in high-load situations, it absorbs and dissipates heat to the exterior, preventing the capacitor from overheating. This ensures stable operation, guarding against malfunctions or damage. Moreover, the oil shields against moisture and external contaminants, preserving the insulation integrity of the capacitor’s internals and reducing its vulnerability to environmental factors.