Experimental Studies on the Estimated Life of Oil-Immersed Insulation Paper in Traction Transformers
Article
Article Title | Experimental Studies on the Estimated Life of Oil-Immersed Insulation Paper in Traction Transformers |
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ERA Journal ID | 4459 |
Article Category | Article |
Authors | Zhou, Lijun (Author), Liao, Wei (Author), Wang, Dongyang (Author), Cui, Yi (Author), Wang, Lujia (Author), Zhang, Liqing (Author) and Guo, Lei (Author) |
Journal Title | IEEE Transactions on Power Delivery |
Journal Citation | 36 (5), pp. 2646-2657 |
Number of Pages | 12 |
Year | 2021 |
Place of Publication | United States |
ISSN | 0885-8977 |
Digital Object Identifier (DOI) | https://doi.org/10.1109/TPWRD.2020.3024839 |
Web Address (URL) | https://ieeexplore.ieee.org/document/9201497 |
Abstract | Traction transformers are one of the most important equipment in the traction power supply system. Thermal aging of transformer insulation system determines its reliable life. To achieve an estimation of the insulation life of traction power transformers operated under real load condition, the effects of traction loads on the thermal aging of oil-paper insulation in traction transformers were investigated. First, the design principles for the accelerated thermal aging experiment were studied and proposed by considering magnitude (i.e., load rate) and frequency (i.e. spare time and lasting time) of the traction load. Then, an experimental system was established in the laboratory to conduct extensive accelerated thermal aging experiments, in which the traction loads were mimicked by using positive temperature coefficient (PTC) heating plates and a programmable logic controller (PLC). Finally, the experimental results were analyzed and discussed to reveal the effects of traction load on the thermal aging of oil-paper insulation in traction transformers. |
Keywords | aging rate; High-speed railway, traction transformer; insulation life; thermal aging; traction load |
ANZSRC Field of Research 2020 | 400803. Electrical energy generation (incl. renewables, excl. photovoltaics) |
Public Notes | Files associated with this item cannot be displayed due to copyright restrictions. |
Byline Affiliations | Southwest Jiaotong University, China |
University of Queensland | |
China University of Mining and Technology, China | |
University of Macau, China | |
Institution of Origin | University of Southern Queensland |
https://research.usq.edu.au/item/q7w04/experimental-studies-on-the-estimated-life-of-oil-immersed-insulation-paper-in-traction-transformers
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