The present research aims to analyze the transient stability after optimal transmission switching (OTS), which accommodates the optimal DC power flows, leading to OTSDC, which facilitates the optimal transmission switching without affecting the load, considering both the optimal power dispatch while complying with the technical and operational constraints established by the system. This was performed for three scenarios when one, two, and three switched transmission lines. All this was an optimization case solved using mixed integer linear programming (MILP) through GAMS and MATLAB optimization software for modeling and data processing. The IEEE standard models of 14 was used to analyze the transient stability of the generation busbars under adverse scenarios. In addition, dynamic programming allowed accurate results to be obtained quickly, taking advantage of the computational advantages available.