1. Shirokov, O.G.; Zalizny, D.I.; Los, D.M. Parametric identification of the mathematical model of the thermal processes of the power transformer (in Russian) // Vestnik. P.O. Sukhoi State Technical University. - 2005. - № 1. - С. 35-42. 2. Problems of power transformers diagnostics / G. M. Mikheev [et al.]//Problems and prospects of development of power engineering, electrical engineering and energy efficiency: Proceedings of the III Intern. scientific-technical conf. Cheboksary: Izdvo Chuvashunct., 2019. С. 445 -451. 3. A.A. Dimitriev, G. Mikheev. M., Power transformer diagnostics on the basis of fuzzy logic methods. Elektrooborudovanie: exploitation and repair No. 32022.

4. A.A. Dimitriev, G. Mikheev. M., Power transformer diagnostics on the basis of fuzzy logic methods. Electrical Equipment: Operation and Repair No. 32022. 5. Alekseev, B.A. Estimation of a condition of power transformers. Interpretation of the results of the gaschromatographic oil analysis // Elektro. - 2002. - №2. - С. 10-15. 6. L.G. Sidelnikov, A. M. Sedunin, A. Y. Sykulev, TestService LLC Vibrodiagnostics and Partial Discharge Measurement in Power Transformer

7. Bashirov, Z.A.; Voloshanovsky, A.Yu.; Naumov, A.A. A. Sensor arrangement methods for the scalar vibration field estimation in the vibrodiagnostics tasks (in Russian) // Problems of Power Engineering. 2000. № 7-8. С. 86-90. 8. Barkov A.V., Barkova N.A., Azovtsev A.Yu. Monitoring and diagnostics of rotor machines by vibration. Recommendations for users of diagnostic systems. Publishing house of SPbSMTU, St. Petersburg, 2000. 9. Petrishchev L.S., Saltanov V.M., Osotov V.N. et al. Investigation of possibility of diagnostics of transformer winding pressing force by their vibration characteristics. - Electrical Stations 1995, N 8, p. 32-37.