What is the function of a transformer oil conservator tank?

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 Jörn.

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08.02.2026 at 22:32 #3814

Kevin
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What is the function of a transformer oil conservator tank?

08.02.2026 at 22:47 #3815

Jörn
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The conservator tank compensates for transformer oil expansion and contraction caused by temperature changes. It maintains a stable oil level in the main tank and limits oil contact with atmospheric air. Together with a breather, it reduces moisture ingress and oxidation, extending oil and insulation service life.
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