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# Corona Power Loss-Calculation, Formula, Equation

When the potential difference between two conductors of a transmission line is raised beyond a certain limit, a point is reached when a violet glow appears around the conductor surface with a hissing noise and ozone gas smell this phenomenon is called Corona.

Power loss due to the corona effect is called corona power loss in the transmission line. Here we will see an equation and formula to calculate corona loss.

## Corona Power Loss

When a corona occurs it causes power loss in the transmission line. Which reduced the efficiency of the transmission line.
Can be calculated using an equation known as Peek’s Formula.
Vph= Phase voltage in Kv
Vd0= Critical Disruptive Voltage in Kv
f= Supply Frequency in Hz
d= Distance between conductors
𝛿= air density correction factor.