Rotor poles diagnostics is a crucial step in the maintenance of rotating electrical machines. This process helps to detect faults and anomalies in the rotor poles that can impact the overall performance of the machine. Diagnostic techniques include visual inspections, resistance testing, thermal analysis, and balancing measurements. By identifying and addressing potential issues promptly, costly breakdowns can be prevented, equipment lifespan can be extended, and reliable operation can be ensured. Regular diagnostics of rotor poles is essential for maintaining the efficiency and safety of rotating machines.