Abstract
Based on the principle of thermoelectric effect, by detecting the thermoelectric potential at different temperatures at both ends of dry-type transformer windings combined with the difference of relative Seebeck coefficients between different metals, the inner winding material can be detected without destroying the whole insulation of epoxy resin of dry-type transformer, and the hidden danger of aluminum transformer pretending to be copper transformer can be found in time For transformers in operation, the same method can be used to detect and make targeted operation and maintenance strategies for aluminum transformers that have been found and have not experienced insulation deterioration for the time being, so as to effectively reduce the fault risk.
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Wu, J., Chen, G., He, D., Li, S. (2023). Research and Application of Dry-Type Transformer Winding Material Detection Technology. In: Dong, X., Yang, Q., Ma, W. (eds) The proceedings of the 10th Frontier Academic Forum of Electrical Engineering (FAFEE2022). FAFEE 2022. Lecture Notes in Electrical Engineering, vol 1054. Springer, Singapore. https://doi.org/10.1007/978-981-99-3408-9_9
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DOI: https://doi.org/10.1007/978-981-99-3408-9_9
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