The primary objective of this research article is to investigate the stability aspects of multiphase induction machines and transmission lines in electric power systems. With the rising demand for energy efficiency and the integration of diverse energy sources, multiphase systems are becoming increasingly critical due to their advantages over traditional three-phase systems. A multiphase machine is particularly useful for high-power transfer applications, as a five-phase induction motor continues to operate even if some phases are open or disconnected. However, achieving stability in multiphase systems, especially when combined with transmission lines, poses significant challenges. Fault tolerance is crucial in multiphase machines; if a fault appears in any phase, issues like reduced amplitude, reduced torque ripple, and less current in each phase arise without increasing the voltage in each phase. This extra degree of freedom enhances the machine’s reliability. In this paper, we delve into the concepts of multiphase systems, discuss the modeling of transmission lines, explore techniques for stability analysis, and conduct a comprehensive examination of the specific stability issues associated with multiphase induction machines and transmission lines.