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//Electric Power Generation, Transmission and Distribution by S.N.Singh
//Publisher:PHI Learning Private Limited
//Year: 2012 ; Edition - 2
//Example 14.2
//Scilab Version : 6.0.0 ; OS : Windows
clc;
clear;
V=220; //Supply voltage in kV
f=50; //Supply frequency in Hz
r=1; //Radius of the conductor in cm
d=400; //Distance between the conductor in cm
m=0.96; //Smooth surface value of conductor
b=73; //Barometric pressure in cm of Hg
t=20; //Temperature in celcius
adf=3.92*b/(273+t); //Air density factor
Vc=r*21.1*m*0.9767*log(d/r); //Phase to neutral critical disruptive voltage in kV
Vp=V/sqrt(3); //Line phase voltage in kV
Pc=241*10^(-5)*(f+25)/0.9767*sqrt(r/d)*(Vp-Vc)^(2); //Peek's formula for corona loss in a fair weather in kW/phase/km
Pc1=241*10^(-5)*(f+25)/0.9767*sqrt(r/d)*(Vp-0.8*Vc)^(2); //Peek's formula for corona loss in a rainy weather in kW/phase/km
printf("\nThe fair weather corona loss is %.2f kW/phase/km",Pc);
printf("\nThe rainy weather corona loss is %.2f kW/phase/km",Pc1);
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