Consider the single-line diagram of the power system shown in Figure 3.38. Equipment ratings are:

Neglecting resistance, transformer phase shift, and magnetizing reactance, draw the equivalent reactance diagram. Use a base of $100 \mathrm{MVA}$ and $500 \mathrm{kV}$ for the 50 -ohm line. Determine the per-unit reactances.

FIGURE 3.38

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Generator 1: Generator 2: Synchronous motor 3: Three-phase A-Y transformers T1, T2, T3, T4: 1000 MVA, 18 kV, X" = 0.2 per unit 1000 MVA, 18 kV, X" = 0.2 1500 MVA, 20 kV, X" = 0.2 1000 MVA, 500 kV Y/20 kV A, X = 0.1 Three-phase Y-Y transformer Ts: 1500 MVA, 500 kV Y/20 kV Y, X = 0.1