-An electrical discharge at the surface of a conductor accompanied by the ionization of the surronding atmosphere It is normally accompanied by light and audible noise
An electrical discharge characterized by a corona and occurring when one of two electrodes in a gas has a shape causing the electric field at its surface to be significantly greater than that between the electrodes
Corona can be defined as a type of localized discharge that results from high, non-uniform electric fields It causes deterioration of the insulator and sometimes causes complete breakdown A corona discharge is capable of producing oxides of nitrogen, which are pollutants, and generates electromagnetic radiation that may disturb radio and TV reception The obvious ways to detect a corona are by sight and sound At high voltages, corona produces visible light and audible noise Corona can also be detected by using various types of measuring equipment When observed, corona may appear as a faint glow (The AirSource® 3000 model does NOT use corona discharge Rather, it uses an ultraviolet lamp to produce light energy as a photocatalyst While powerful enough to create the advanced oxidation process, the UV lamp does not create oxides of nitrogen that can be irritating to the lungs and eyes )