Kuzhekov, S.L., Degtyarev, A.A., Doni, N.A. and Shurupov, A.A. 2020. On the Problem of Selecting and Replacing Current Transformers for Relay Protection Devices. Russian Electromechanics. 63, 6 (Dec. 2020), 72–82. DOI:https://doi.org/10.17213/0136-3360-2020-6-72-82.