Corona

Corona

A luminous discharge due to ionisation of the gas surrounding a conductor around which exists a voltage gradient exceeding a certain critical value. A type of discharge--sometimes visible--in the dielectric of an insulation system caused by an electric field and characterised by the rapid development of an ionised channel which does not completely bridge the electrode. May be continuous or intermittent. Not a materials property, but related to the system, including electrodes.

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Industry/Domain: Electronic components
Category: Capacitors
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