Partial discharge testing of complete, low-voltage induction machines and dry-type convertor transformers for the More Electric Transportation is discussed. The current standard (i.e. IEC 60034-18-41, 60317-0-1 and 61378–1) offers very few answers to the new challenges posed to the insulating systems reliability of these increasingly electrified electrical machines. Based on tests performed on different kind of specimens and the literature, the most promising assessment technique to ensure a reliable insulation is based on optical sensors. In addition, this work seeks to give some precise, but simple, indications on how to take into account the effect of altitude and high frequency in the qualification of an insulation system for More Electric Transportation and the limits of the different standards involved are highlighted.
Assessment Techniques to Ensure Reliable Electrical Insulation for More Electric Transportation / Lusuardi, Luca; Rumi, Alberto; Cavallini, Andrea. - ELETTRONICO. - (2019), pp. 7083-7087. (Intervento presentato al convegno IECON 2019 - 45th Annual Conference of the IEEE Industrial Electronics Society tenutosi a Lisbon, Portugal nel 14-17 October 2019) [10.1109/IECON.2019.8927253].
Assessment Techniques to Ensure Reliable Electrical Insulation for More Electric Transportation
Lusuardi, Luca;Rumi, Alberto
2019
Abstract
Partial discharge testing of complete, low-voltage induction machines and dry-type convertor transformers for the More Electric Transportation is discussed. The current standard (i.e. IEC 60034-18-41, 60317-0-1 and 61378–1) offers very few answers to the new challenges posed to the insulating systems reliability of these increasingly electrified electrical machines. Based on tests performed on different kind of specimens and the literature, the most promising assessment technique to ensure a reliable insulation is based on optical sensors. In addition, this work seeks to give some precise, but simple, indications on how to take into account the effect of altitude and high frequency in the qualification of an insulation system for More Electric Transportation and the limits of the different standards involved are highlighted.File | Dimensione | Formato | |
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