The oil flows through natural convection, absorbing this heat and transporting it to external radiators or cooling towers where it dissipates into the atmosphere. Particle contamination, such as dust or metallic dust from component wear, further exacerbates the issue by providing sites for electrical discharge.
Oil in Transformers Benefits Overview
This moisture often enters through seals, leaks, or during maintenance activities when the reservoir is opened to the atmosphere. This dual role makes the liquid medium indispensable for reliable high-voltage operation, demanding careful selection and ongoing monitoring to prevent failures.
This continuous loop of heating and cooling maintains the transformer within its operational temperature band, preventing thermal shock to the paper insulation surrounding the conductors. Contamination and Degradation Mechanisms Over time, the pristine properties of transformer oil deteriorate due to various external and internal factors.
Oil in Transformers Benefits Overview
Contamination and Degradation Mechanisms Oxidation is another primary mechanism of degradation. This process darkens the fluid and leads to the formation of varnish on the internal surfaces of the windings, which can restrict oil flow and cause overheating.
More About Oil in transformers
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