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-it prevents conductor from electrical surges -it increases virtual diameter hence conductor can carry more current -corona discharge is used in photo copier and laser printers
A corona discharge is the ionization of the surrounding atmosphere after an electrical discharge. This can usually be seen as a glowing of a different color near high voltage conductor points.
Advantages of corona in power system
Yes.
Mica sheet
There are many different types of electrostatic discharge. Some examples include electric sparks such as from lightning, corona discharge, and brush discharge.
It is based on the principle of static induction and action of points (corona discharge)
Due to corona effect virtually conductor size is increase and therefor resistance in transmission line is decreases.so I2R losses will decreases...
When Corona Discharge occurs it forms ozone and nitrogen oxides. These combined with moisture to prduce nitric acid, which is destructive to most dielectrics and certain metallic compositions, resulting in corrosion. In addition, the high energy in some discharges results in mechanical, electrical, and thermal damage. SC
Corona.
Marie Farnsworth has written: 'The equilibrium of carbon dioxide with carbon monoxide and oxygen in the corona discharge ..' -- subject(s): Chemical equilibrium, Corona (Electricity), Electric discharges through gases
The virtual diameter of the conductor becomes greater to carry more current