$1.$ A $300-$km$,345-$kV$,60-$Hz uncompensated three$-$phase line has a series impedance z $=0\mathrm{.}06+$j$0\mathrm{.}30/$km and a shunt admittance y $=$ j$5\mathrm{.}0$ x $10-$ S$/$km$.$ Calculate:$($a$)$ Zc$($b$)$ yd $($use distance in km for d$)($c$)$ The exact ABCD parameters for the line and compare the exact B parameter with that of the nominal a circuit.$($d$)$ Now assume a lossless line $($i$.$e$.$ ignore resistance in the line$).$ Calculate the surge impedance loading in MW and the theoretical maximum real power delivered $($i$.$e$.$ steady$-$state stability limit$).$