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// A Texbook on POWER SYSTEM ENGINEERING
// A.Chakrabarti, M.L.Soni, P.V.Gupta, U.S.Bhatnagar
// DHANPAT RAI & Co.
// SECOND EDITION
// PART II : TRANSMISSION AND DISTRIBUTION
// CHAPTER 8: CORONA
// EXAMPLE : 8.8 :
// Page number 230
clear ; clc ; close ; // Clear the work space and console
// Given data
d = 2.0 // Diameter of conductor(cm)
D = 150.0 // Spacing b/w conductor(cm)
delta = 1.0 // Air density factor
// Calculations
r = d/2.0 // Radius of conductor(cm)
V_d = 21.1*delta*r*log(D/r) // Disruptive critical voltage(kV/phase)
V_d_ll = 3**0.5*V_d // Line voltage for commencing of corona(kV)
// Results
disp("PART II - EXAMPLE : 8.8 : SOLUTION :-")
printf("\nLine voltage for commencing of corona = %.2f kV \n", V_d_ll)
printf("\nNOTE: Solution is incomplete in textbook")
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