an electrical discharge appearing on and around the surface of a charged conductor, caused by ionization of the surrounding gas
Also called: corona. See also Saint Elmo's fire
corona discharge in Electrical Engineering
(kəroʊnə dɪstʃɑrdʒ)
noun
(Electrical engineering: Electrical power)
Corona discharge is a bluish white luminous discharge that appears surrounding a conductor surface and is not sufficient to cause sparking or flashover.
Corona discharge is an electrical discharge brought on by the ionization of a fluid surrounding aconductor, which occurs when the strength of the electric field exceeds a certainvalue.
If the field is nonuniform, an increase in voltage will cause a corona discharge in the gas to appear at points with highest electric field intensity, which can beobserved as a bluish luminescence.
Corona discharge is a bluish white luminous discharge that appears surrounding a conductor surfaceand is not sufficient to cause sparking or flashover.