Power generation -- 2

b)  Calculate the values of all state variables and input parameters in steady-state conditions when the generator is supplying the rated apparent power to the busbar, with 0.9 lagging power factor (positive reactive power generated by the generator). ​.​c)  Simulate the response of the generator to a sudden increase in the mechanical torque provided by the prime mover (turbine), in the following conditions: ​.​i)  20% increase; ​.​ii)  80% increase. ​.​In particular, show the electromagnetic torque, the rotor speed and the load angle during the transient in both cases, on appropriate time scales. Comment on these results. ​.​d)  Simulate the response of the generator to a three-phase short circuit at its terminals. In particular, show the three stator phase currents, the load angle and the rotor speed during the transient, on appropriate time scales. Comment on these results.