1. Condition monitoring and diagnosis of power transformers;Gockenbach,2008
2. Electrical-based diagnostic techniques for assessing insulation condition in aged transformers;Fofana;Energies,2016
3. Transformer diagnostic testing by frequency response analysis;Dick;IEEE Trans. Power Appar. Syst.,1978
4. IEEE Guide for the Application and Interpretation of Frequency Response Analysis for Oil-Immersed Transformers, IEEE C57.149-2012.
5. Frequency Response Analysis on Winding Deformation of Power Transformers, Chinese standard DL/T911-2004.