Rotating electrical machine with improved load-shedding protection

A rectifier unit rectifies an AC voltage induced on each of at least two-phase stator windings are the same. A starter unit monitors the output voltage of the rectifier unit, and turns on switching element for a low-side rectifier element for at least one of the at least two-phase stator windings a, when the output voltage exceeds a first threshold voltage because of a load shedding. After the output voltage after it has once exceeded the first threshold voltage falls below a second threshold voltage, waits for a removing unit with the switching element is turned off, until a turn-off or a turn-off, which is suitable for the occurrence of a surge voltage on the at least one of is to prevent at least two-phase stator windings come. The second threshold voltage is set lower than the first threshold voltage. The removing unit turns off the switching element when the switch-off or switch-off time has come.