Electrical Corona Losses in Transmission Line | Electrical Corona Effect in Transmission Lines
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Ionization of air surrounding the
Ionization of air surrounding the high voltage transmission lines causing the conductors to glow, producing a hissing noise, is called Corona Discharge or Corona Effect. Corona Effect in Transmission Lines, This phenomenon occurs when the electrostatic field across the transmission line conductors produces the condition of potential gradient. The air gets ionized when the potential gradient at the conductor surface reaches the value of 30kV/cm at normal pressure and temperature. In transmission lines, conductors are surrounded by the air. Air acts as a dielectric medium. When the electric field intensity is less than 30kV/cm, the induced current between the conductor is not sufficient to ionize the air. However, when the voltage of air surrounding the conductor exceeds the value of 30kV/cm, the charging current starts to flow through the air, that is air has been ionized. The ionized air act as a virtual conductor, producing a hissing sound with a luminous violet glow.
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#ElectricalCoronaEffect
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2 ماه پیش
در تاریخ 1403/04/04 منتشر شده
است.
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