What techniques are used for efficient cable oil purification?

Efficient cable oil purification employs several techniques:

Vacuum Dehydration: Removes moisture and dissolved gases effectively.
Multi-Stage Filtration: Uses a series of filters with decreasing micron ratings to capture particles of various sizes.
Centrifugation: Separates contaminants based on density differences through high-speed rotation.
Adsorption: Employs adsorbent materials like Fuller’s earth to remove acids and polar contaminants.
Electrostatic Precipitation: Removes fine particulates using electrostatic charges.
Thermal Techniques: Controlled heating to facilitate the removal of volatile contaminants.
Online Purification: Continuous purification without shutting down the cable system.
Combining these techniques enhances overall purification efficiency and oil quality.