Summary
The paper analyses the impact of optical fibre temperature sensors installation on dielectric withstand of oil-filled paperless transformer winding insulation. A PVA enamel insulated helical winding models with 3 mm oil channel were built according to the technological process of Kolektor Etra and tested at the high-voltage laboratory of the Milan Vidmar Electric Power Research Institute. AC 50Hz breakdown voltage and partial discharge levels of the winding models with and without optical fibre temperature sensor were measured as well as dissolved gas analyses of the oil samples were made. Experimental results were evaluated and analysed through a dielectric study based on the finite elements simulation, and empirical design guidelines based on partial discharge inception models. On the basis of these results, the paper discusses the installation of the optical fibre temperature sensors in the sandwich construction.
Additional informations
| Publication type | ISH Collection |
|---|---|
| Reference | ISH2015_632 |
| Publication year | 2015 |
| Publisher | ISH |
| File size | 1 MB |
| Price for non member | Free |
| Price for member | Free |
Authors
Draxler Karel, Styblikova Renata, Widodo Rusli, Zhu Ming-Xiao
