Why is oil used in electrical transformers?

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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09.02.2026 at 17:25 #3946

Peter Duncan
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Why is oil used in electrical transformers?

09.02.2026 at 17:40 #3947

Jörn
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Oil provides both electrical insulation and efficient cooling. It fills voids, suppresses arcing, removes heat from windings and core, and protects solid insulation from oxidation, enabling compact design and high-voltage operation.
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