Resumen
System and method of protection against internal faults in winding rotor induction machines. The present invention can detect internal faults in systems, whether the short circuit occurs in the stator or in the rotor of a winding rotor induction machine (2). The differential current wave calculated as a result of the comparison of the currents measured in the stator (9) and in the rotor (10), after the application of different correction factors (11) and the transformed one, is used as an indicator of the defects. Of park (12) and (13). The amplitude of said differential current, allows to distinguish between internal defects to the machine and external to it. (Machine-translation by Google Translate, not legally binding)