To solve the given problem, we will go through step-by-step calculations for the synchronous generator connected to the mains with the provided parameters.
### Given Data:
- Nominal voltage, \( V = 2300 \text{ V} \) (line-to-line voltage)
- Frequency, \( f = 50 \text{ Hz} \)
- Synchronous Reactance, \( X_s = 1.1 \, \Omega/\text{phase} \)
- Resistance, \( R \approx 0 \, \Omega/\text{phase} \)
- Active Power, \( P = 400 \text{ kVA} \)
- Power