Transformer Oil, Fluids & Preservation
Standards: IEC 60296, IEC 61099, IEC 62770
Mineral oil, natural/synthetic esters, vacuum and nitrogen preservation, dehydrating breathers and conservator systems.
Natural & Synthetic Esters
Fire-safe, biodegradable fluids (K-class).
Silica-Gel Breathers
Dehydrating breathers, standard or self-regenerating.
Air Cell / Rubber Bags
Conservator bladders separating oil from atmosphere.
Nitrogen Preservation Systems
Positive-pressure N₂ blankets for sealed units.
Frequently asked
Mineral oil is the traditional, low-cost insulating liquid; natural and synthetic esters are biodegradable with higher fire points, used where fire safety and environmental risk matter.
It accommodates the oil volume change with temperature and, with a dehydrating breather, keeps moisture out of the sealed transformer.
Water and dissolved gases lower the dielectric strength and accelerate aging, so oil is tested (DGA, moisture, acidity, breakdown voltage) for condition.
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