@inproceedings{65a9a2f314b04bbf809db4ede6da2fc9,
title = "Investigation on Humidity Effect on Partial Discharge Considering Thermal Aging",
abstract = "Throughout the years, the humidity effect on Partial Discharge Inception Voltage (PDIV) has been investigated revealing the complexity of the interaction between moisture and insulation material. Although the importance of these studies, the Electrical Machine (EM) insulation system experiences combined stresses when in service. Thus, attention is paid to the impact of humidity on PDIV under different thermal aging levels, since the hygroscopicity of insulation material might change during its lifetime. For the experimental investigation, three groups of twisted pairs are prepared and one is unaged while the remaining two are thermally aged at 250°C for 48 and 96 hours respectively. The PDIV and insulation capacitance under sinusoidal excitation is then measured at a fixed 30 °C ambient temperature with three different relative humidity conditions: 30%, 45%, and 60%. The obtained results are discussed and an explanation of the combined effect of humidity and thermal aging is given.",
keywords = "Aging, Electric Machines, Humidity, Insulation, Partial discharge",
author = "Yatai Ji and Paolo Giangrande and Vincenzo Madonna and Weiduo Zhao and Michael Galea and Jing Li and He Zhang",
note = "Publisher Copyright: {\textcopyright} 2022 IEEE.; 2022 International Conference on Electrical Machines, ICEM 2022 ; Conference date: 05-09-2022 Through 08-09-2022",
year = "2022",
doi = "10.1109/ICEM51905.2022.9910815",
language = "English",
series = "2022 International Conference on Electrical Machines, ICEM 2022",
publisher = "Institute of Electrical and Electronics Engineers Inc.",
pages = "2325--2330",
booktitle = "2022 International Conference on Electrical Machines, ICEM 2022",
address = "United States",
}