Let the initial power transfer be 200 MW (2.0 pu on the system base), which results in an initial rotor angle of S0 (assuming the voltages to be 1.0 pu.), given by
Let the initial power transfer be 200 MW (2.0 pu on the system base), which results in an initial rotor angle of S0 (assuming the voltages to be 1.0 pu.), given by