STUDY OF MECHANICAL IMBALANCE AT A HYDRO-AGGREGATE WITH KAPLAN TURBINE
| Autor: | C. Haţiegan, M. D. Stroia, C. Popescu, E. Răduca |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2019 |
| Předmět: | |
| Zdroj: | Analele Universităţii "Constantin Brâncuşi" din Târgu Jiu: Seria Inginerie, Vol 2019, Iss 3, Pp 79-88 (2019) |
| Druh dokumentu: | article |
| ISSN: | 1842-4856 2537-530X |
| Popis: | In present paper we have conducted an experimental study regarding mechanical imbalance of hydro-aggregate from CHE Mănicești, having Kaplan turbine. Before disassembling the structure, we have noticed high vibrations when functioning with no excitation and in backlash regime. After running repairs which included dynamic equilibration of generator rotor vibration lowered substantially. We also observed an increase of vibration in radial-axial bearing, on +x axis, when functioning in backlash regime and excited, compared to functioning with no excitation, thus indicating a magnetic imbalance. After magnetic equilibration vibration measured on radial-axial bearing, on +x axis have lowered considerably. |
| Databáze: | Directory of Open Access Journals |
| Externí odkaz: |
|