Material Identification Method and Experimental Verification of Transformer Winding Based on Sweep Frequency Resistance Method
The safety of power system operation is endangered by the phenomenon of'replacing copper with aluminum'in trans-former production.In order to identify the material of transformer winding simply and effectively,an identification method and experi-mental 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 per-formance 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 en-gineering practical value.
copper aluminum transformersweep frequency resistance methodskin effectharmonic resistance
万方数据
维普
