Draw the positive sequence, negative sequence and zero sequence networks. After that you need to develop Zbus matrix for each sequence network.

$*$For the transmission line, y$\_34=$y$\_45=-$j$0\mathrm{.}5$ pu $($For all sequence networks$)$

$*$For transformers $,$ X$\_$T$1=$X$\_$T$2=$X$\_$T$3=$X$\_$T$4=$X$\_$T$5=50\%($Positive sequence$)$

$*$For transformers $,$ X$\_$T$1=$X$\_$T$2=$X$\_$T$3=$X$\_$T$4=$X$\_$T$5=50\%($Negative sequence$)$

$*$For transformers $,$ X$\_$T$1=$X$\_$T$2=$X$\_$T$3=$X$\_$T$4=$X$\_$T$5=60\%($Zero sequence$)$