How does a transformer oil centrifuge machine improve oil quality?

A centrifuge machine uses high rotational forces to separate contaminants by density. It is effective at removing free water and heavier particles from oil, improving clarity and supporting higher dielectric strength. However, centrifuges are less effective at removing dissolved moisture and dissolved gases, so they are often combined with vacuum dehydration and filtration to meet strict utility targets. When used properly, centrifuging reduces sludge and particulate load on filters, improves oil appearance, and helps restore dielectric margin after contamination events or during routine conditioning programs.