Monitoring the condition of the damper cage in a large 33MW synchronous motor.

In the past, this element suffered a serious damage that made the motor starting impossible.

MCSA is not suitable since the damper carries little current at steady-state.

ATCSA confers a great potential as possible information source since during the startup the damper is operative and carries significant current.

Diverse innovative methods have been proposed by the Team for diagnosisng the condition of such element; they are based on the advanced analysis of the starting current and subsequent trending of the resulting indicators.