$($i$)$ Using the $100$ MVA and $132$ kV as the base, calculate the impedance of the two lines, transformer T$1$ and T$2$ in per unit values.

$(6$ marks$)$

$($ii$)$ If the source voltage $V_S$ is at the rated value of $400$ kV and the load current is in phase with the source voltage $V_S,$ find the magnitude of the load voltage in line rms value.

$(9$ marks$)$