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Abstract
In this paper the focus is laid on the observation of different dielectric parameters of the
electric insulation system of generator stator windings. Spar bars of a generator were tested under laboratory conditions, the dielectric dissipation factor (DDF) as well as the partial discharge (PD) behavior was recorded under changing environmental conditions. In a test chamber the temperature and air humidity could be controlled and the DDF and PD were measured. In the same way the dielectric response function in frequency domain (FDS) was measured over a large scope of different climates.
To verify the results of the laboratory tests two onsite measurements were done at generators in hydro power stations. The tests were applied during the maintenance period at an asphalt insulated and one resin insulated generator. For the dielectric tests the FDS method as well as a PDC measurement were recorded. The results of the onsite measurements were evaluated under different aspects, the aim was to find out the expressiveness of FDS and PDC parameters to determine the winding condition. At least the test methods were compared and
advantages/disadvantages were worked out.
electric insulation system of generator stator windings. Spar bars of a generator were tested under laboratory conditions, the dielectric dissipation factor (DDF) as well as the partial discharge (PD) behavior was recorded under changing environmental conditions. In a test chamber the temperature and air humidity could be controlled and the DDF and PD were measured. In the same way the dielectric response function in frequency domain (FDS) was measured over a large scope of different climates.
To verify the results of the laboratory tests two onsite measurements were done at generators in hydro power stations. The tests were applied during the maintenance period at an asphalt insulated and one resin insulated generator. For the dielectric tests the FDS method as well as a PDC measurement were recorded. The results of the onsite measurements were evaluated under different aspects, the aim was to find out the expressiveness of FDS and PDC parameters to determine the winding condition. At least the test methods were compared and
advantages/disadvantages were worked out.
| Originalsprache | englisch |
|---|---|
| Titel | Proceedings of the 16th International Symposium on High Voltage Engineering |
| Erscheinungsort | Johannesburg |
| Herausgeber (Verlag) | South African Inst. of Electrical Engineers |
| Seitenumfang | 5 |
| ISBN (Print) | 978-0-620-44585-6 |
| Publikationsstatus | Veröffentlicht - 2009 |
| Veranstaltung | 16th International Symposium on High Voltage Engineering: ISH 2009 - Kapstadt, Südafrika Dauer: 26 Aug. 2009 → 26 Aug. 2009 |
Konferenz
| Konferenz | 16th International Symposium on High Voltage Engineering |
|---|---|
| Kurztitel | ISH 2009 |
| Land/Gebiet | Südafrika |
| Ort | Kapstadt |
| Zeitraum | 26/08/09 → 26/08/09 |
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- 3 Abgeschlossen
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Zustandsbewertung von Betriebsmittel in elektrischen Netzen
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Projekt: Arbeitsgebiet
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Hochspannungstechnik
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Projekt: Forschungsprojekt
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Instandhaltung, Diagnose und Bewertung von Hochspannungsgeräten
Sumereder, C. (Teilnehmer (Co-Investigator)) & Muhr, H. M. (Teilnehmer (Co-Investigator))
1/01/95 → 31/12/24
Projekt: Arbeitsgebiet