Power System Analysis I

A 90 MVA 11 kV 3-phase generator has a reactance of 15%. The generator supplies two motors through transformers and transmission line shown in figure below. The transformer $T_1$ is a 3-phase transformer, 100 MVA, 10/132 kV, 6% reactance. The transformer $T_2$ is composed of 3 single phase units each rated at 30 MVA, 66/10 kV with 5% reactance. The connection of $T_1$ and $T_2$ are as shown. The motors rated at 50 MVA and 40 MVA both 10 kV and 20% reactance. Taking the generator rating as base, draw reactance diagram and indicate the reactance in per unit. The reactance of line is $100\ \Omega$.