PROGRAM:

%THE THREE PHASE TL HAS A HORIZONTAL CONFIGURATION WITH SPACING OF 6m%BETWEEN ADJACENT CONDUCTORS AND 12m BETWEEN OUTER CONDUCTORS THE RADIUS%OF EACH CONDUCTORS IS1.81cm.FIND THE INDUCTANCE PER PHASE PER km%OF THE LINEclc;r=input('ENTER THE RADIUS IN CMS = ')effR=0.77888*r;fprintf('The effective radius is = % g in cms\n',effR)d12=input('ENTER THE SPACING BET 1 & 2 IN METERS IN M= ');d23=input('ENTER THE SPACING BET 2 & 3 IN METERS IN M= ');d31=input('ENTER THE SPACING BET 3 & 1 IN METERS IN M= ');%EQUIVALENT EQUILATERAL SPACINGDeq=(d12*d23*d31)^(1/3)fprintf('The equivalent equilateral spacing is =%g meters\n',Deq);% VALUE OF INDUCTANCE IN mH/km is = %g \n',L);L=((2*10^(-7))*log(Deq*100/effR))*1000*1000%1000 for mh and other 1000 for kmfprintf('The VALUE OF INDUCTANCE IN mH/km is = %g \n',L);

OUTPUT:

ENTER THE RADIUS IN CMS = 1.81

r =

1.8100

The effective radius is = 1.40977 in cmsENTER THE SPACING BET 1 & 2 IN METERS IN M= 6ENTER THE SPACING BET 2 & 3 IN METERS IN M= 6ENTER THE SPACING BET 3 & 1 IN METERS IN M= 12

Deq =

7.5595

The equivalent equilateral spacing is =7.55953 meters

L =

1.2569

The VALUE OF INDUCTANCE IN mH/km is = 1.25691 >>