Why is oil immersed current transformer used in HV systems?

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 Peter Duncan.

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04.02.2026 at 07:36 #3149

Edwin
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Why is oil immersed current transformer used in HV systems?

04.02.2026 at 07:55 #3150

Peter Duncan
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Oil immersed current transformers provide superior insulation and cooling required at high voltages. The oil ensures uniform electric field distribution, suppresses partial discharge, and removes heat generated by magnetic losses. This design enables accurate measurement and long service life in outdoor substations and transmission networks.
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