Abstract
Today there is a great demand for optimization of the overall performance of high voltage rotating machines. In the endwinding minimized distances between adjacent insulated bars or coils and reduced insulation thickness at constant voltage stress increase the requirements on the insulating system. Therefore the endwinding design has to be optimized with regarding to corona discharges and axial size reduction.
This paper describes our research about physics of gas discharges under various environmental conditions. In particular we investigated plane-plane arrangements of insulated electrodes with and without spacers. Thereby, special attention is paid to corona inception and extinction voltage as well as the occurred level of partial discharges (on the basis of phase resolved PD patterns). Comparing the obtained results with the classical Paschen’s Law will allow an optimized endwinding design in future
This paper describes our research about physics of gas discharges under various environmental conditions. In particular we investigated plane-plane arrangements of insulated electrodes with and without spacers. Thereby, special attention is paid to corona inception and extinction voltage as well as the occurred level of partial discharges (on the basis of phase resolved PD patterns). Comparing the obtained results with the classical Paschen’s Law will allow an optimized endwinding design in future
| Translated title of the contribution | Application of Paschen’s Law for the optimization of the endwinding designs of large rotating electrical machines |
|---|---|
| Original language | German |
| Pages (from-to) | 314-320 |
| Journal | Elektrotechnik und Informationstechnik |
| Volume | 129 |
| Issue number | 5 |
| DOIs | |
| Publication status | Published - 2012 |
Fields of Expertise
- Sonstiges
Treatment code (Nähere Zuordnung)
- Theoretical
- Experimental