(Solved): 19. Figure 72.1 shows a double circuits three phase transposed line composed of two conductors. The ...

19. Figure 72.1 shows a double circuits three phase transposed line composed of two conductors. The conductors have a radius of $2.203\mathrm{cm}$ and a GMR of $1.737\mathrm{cm}$. The bundle spacing is $0.45\mathrm{m}$. Find the capacitance per phase per kilometer. Find this value when the circuit arrangement is $a_1{b}_1{c}_1,a_2{b}_2{c}_2$. (Ans: $0.024?\mathrm{F}/\mathrm{km},0.022?\mathrm{F}/\mathrm{km}$ )