Tests Regarding the Transitory Regimes of Putting off Load of the Hydroagregate

• Main Authors: Marcel Romulus Jurcu, Ioan Padureanu, Laurentiu Padeanu, Ladislau Augustinov, Cornel Hatiegan
• Format: Article
• Language: English
• Published: Eftimie Murgu University of Resita 2015-09-01
• Series: Analele Universităţii "Eftimie Murgu" Reşiţa: Fascicola I, Inginerie
• Subjects: hydro aggregates; vibrations; dynamic stability
• Online Access: http://anale-ing.uem.ro/2015/219.pdf

For high power and high revolution aggregates it is required that the operation should take place in safe conditions, for all the running regimes. The most difficult regimes for a hydro aggregate are the transitory regimes. Although, these regimes generally last a rather short period of time, for high power aggregates these regimes are accompanied by electric and mechanic solicitations which sometimes can surpass the admitted values. In the present paper, we present an evaluation method of the rotating parts’ dynamic stability of the hydro aggregates in the transitory regime of putting off load. We present the results obtained from the recordings of putting off load and those obtained after the dynamic equilibration of the hydro aggregate’s rotor.