Material Identification Method and Experimental Verification of Transformer Winding Based on Sweep Frequency Resistance Method

Jun-ye CHEN; Zi-lun SHEN; Xin-yu LI; Ya-wei WANG; Zhong-dong YIN; Zhi-yao ZHENG

doi:10.12404/j.issn.1671-1815.2301609

Science Technology and Engineering ›› 2024, Vol. 24 ›› Issue (2) : 584-594 DOI: 10.12404/j.issn.1671-1815.2301609

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Material Identification Method and Experimental Verification of Transformer Winding Based on Sweep Frequency Resistance Method

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Abstract

The safety of power system operation is endangered by the phenomenon of 'replacing copper with aluminum' in transformer production. In order to identify the material of transformer winding simply and effectively, an identification method and experimental scheme based on sweep resistance method were proposed, and a set of transformer winding material detection system was built according to the scheme. Firstly, the identification method based on sweep resistance method was deduced and proved. Then, the performance of the detection system based on this method was tested. Finally, different types of transformers were verified by experiments. The experimental results show that the method can quickly and efficiently identify the material of transformer winding, and has high engineering practical value.

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Jun-ye CHEN, Zi-lun SHEN, Xin-yu LI, Ya-wei WANG, Zhong-dong YIN, Zhi-yao ZHENG. Material Identification Method and Experimental Verification of Transformer Winding Based on Sweep Frequency Resistance Method. Science Technology and Engineering, 2024, 24(2): 584-594 DOI:10.12404/j.issn.1671-1815.2301609