What does the neutralization number of transformer oil indicate?

Tagged: answer, FAQ, oil, question, transformer, transformer oil

This topic has 1 reply, 2 voices, and was last updated 5 months, 1 week ago by Falcó Cruz.

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08.02.2026 at 19:57 #3796

Łukasz
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What does the neutralization number of transformer oil indicate?

08.02.2026 at 20:12 #3797

Falcó Cruz
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The neutralization number measures oil acidity, indicating the presence of acidic oxidation by-products. Increasing acidity signals oil aging, sludge formation risk, and accelerated insulation degradation. Monitoring this value helps determine when oil regeneration, inhibitor addition, or replacement is required.
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