Problem $5\mathrm{.}41$

A $230$ kV$,100$ km$,60$ Hz$,$ three$-$phase overhead transmission line with a rated current of $900$

A$/$phase has a series impedance z$=0\mathrm{.}088+$j$0\mathrm{.}46/$km and a shunt admittance y$=3\mathrm{.}524$ S$/$km$.$

$($a$)$ Obtain the nominal circuit equivalent circuit in standard units and in per units on a

base of $100$ MVA $($three phase$)$ and $230$ kV $($line$-$to$-$line$).$

$($b$)$ Determine the three$-$phase rated MVA of the line.

$($c$)$ Compute the ABCD parameters

$($d$)$ Calculate the SIL