(Solved): Q4. Determine the per unit impedance diagram of the following power network, and show all impedance ...

Q4. Determine the per unit impedance diagram of the following power network, and show all impedances in per unit on a 100MVA, 132kV base in the transmission line circuit. The nameplate ratings of different apparatus are as follows- $\begin{array}{l}{\mathbf{G}}_1:100\mathrm{MVA},11\mathrm{kV},\mathrm{X}=0.15\mathrm{p}.\mathrm{u}\\ {\mathbf{G}}_2:200\mathrm{MVA},13.8\mathrm{kV},\mathrm{X}=0.2\mathrm{p}.\mathrm{u}\\ {\mathbf{T}}_1:120\mathrm{MVA},11/132\mathrm{kV},\mathrm{X}=0.1\mathrm{p}.\mathrm{u}\\ {\mathbf{T}}_2:250\mathrm{MVA},13.8/161\mathrm{kV},\mathrm{X}=0.1\mathrm{p}.\mathrm{u}\end{array}$ Load: $250\mathrm{MVA},0.8$ Lagging, operating at $132\mathrm{kV}$ All the transmission line impedances are marked in ohm on the oneline diagram.