Abstract
For the insulation failure caused by suspended water droplets in the oil of oil paper insulated electric power transformer, Comsol is the calculation software, and the phase field method in two-phase flow theory is adopted to simulate the distribution state of suspended water droplets in the oil channel inside the transformer, and the flowing transformer oil is described by laminar flow model. Precise definition from the aspects of oil flow speed and electric field intensity in the transformer oil pipeline. The simulation results show that when the droplet moves along the transformer oil channel, the droplet distribution state affects the shape of the droplet aggregation. The flow speed and the electric field intensity in the oil channel also affect the shape of the droplet, thus affecting the electric field distribution in the oil channel and changing the insulation performance of the flowing transformer oil.
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Acknowledgments
This work is supported by the National Natural Science Foundation of China (52167020), the Youth Fund Project of Qinghai University (2020-QGY-4).
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Liu, L., Su, J., Ma, S., Hu, H., Ma, S. (2023). Simulation of Droplet Movement Status and Impact Factors in Flowing Transformer Oil. In: **e, K., Hu, J., Yang, Q., Li, J. (eds) The Proceedings of the 17th Annual Conference of China Electrotechnical Society. ACCES 2022. Lecture Notes in Electrical Engineering, vol 1014. Springer, Singapore. https://doi.org/10.1007/978-981-99-0408-2_34
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DOI: https://doi.org/10.1007/978-981-99-0408-2_34
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