Why is OLTC oil filtration important?

Filtration removes impurities and moisture from OLTC oil, which ensures proper insulation, cooling, and reduced wear on contacts and components.

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Oil filtration in on-load tap changers (OLTC) is crucial for several reasons: it maintains the dielectric strength of the oil, preventing electrical breakdown; it removes particulate contaminants that can cause wear and damage to contacts; it reduces moisture levels, which can lead to corrosion and insulation failure; and it enhances the overall reliability and lifespan of the OLTC. Regular oil filtration helps ensure optimal performance, minimizes maintenance costs, and prevents unexpected failures in transformer operation.