Abstract
The article proves the relevance of extending the life of power transformers of traction substations of alternating current of electric railways. The service life of the transformers of many substations on the Far East Railway exceeds the standard service life. Replacing existing transformers with new ones will require huge investments. Every fourth case of transformer failure is associated with damage to the winding insulation. According to the results of the analysis of the operation of transformers, it was proved that the wear of winding insulation is uneven. To assess the wear of winding insulation of existing transformers, a method has been developed that allows determining the residual insulation resource. To reduce the wear rate of winding insulation, which limits the life of existing transformers, new connection schemes are proposed. Extending the life of the winding with the greatest insulation wear increases the life of the transformers. Determination of the predicted life of the corresponding transformer by thermal wear of winding insulation ensures their monitoring in operation. The determination of the relative wear of winding insulation in retrospect is based on the analysis of the executed train schedules. For each substation, a transformer connection diagram is determined, which ensures a decrease in the wear rate of winding insulation, which limits the life of the transformer in the future. The work proves the technical and economic efficiency of extending the life of transformers of traction substations of alternating current of electric railways.
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References
Strategy for the development of railway transport in the Russian Federation until 2030, approved by order of the Government of the Russian Federation of June 17, 2008 No. 877-r
Vanin, B.V., Lvov, Yu.N., Lvov, M.Yu., Neklepaev, B.N.: On damage of power transformers with voltage of 110–500 kV in operation. Electr. Stations 9, 53–58 (2001)
Lvov, M.Yu.: Development and improvement of methods and criteria for assessing the technical condition of power transformers and autotransformers with voltage of 110Â kV and above. Thesis of Doctor of Engineering, p. 253, Moscow (2009)
Voprikov, A.V.: Increasing the efficiency of operation of power transformers of traction substations of alternating current railways. Thesis of Ph.D. in Engineering, p. 122. Khabarovsk (2017)
Grigoriev, N.P., Voprikov, A.V.: The method of connecting traction transformers in an alternating current system of 25Â kV. Pat. 2540685 of the Russian Federation (2013)
Grigoriev, N.P., Voprikov, A.V., Klykov, M.S.: System of electrified railways of alternating current of 25Â kV. Pat. 2550582 of the Russian Federation (2013)
Grigoriev, N.P., Voprikov, A.V.: Choice of connection diagrams for power transformers of traction substations of electrified railways of alternating current of 25 kV. Vestnik Rostovskogo Gosudarstvennogo Universiteta Putey Soobshcheniya 4, 90–97 (2014)
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Voprikov, A., Grigoriev, N., Parfianovich, A. (2020). Extending the Life of Power Transformers of Traction Substations of Alternating Current of Electric Railways. In: Popovic, Z., Manakov, A., Breskich, V. (eds) VIII International Scientific Siberian Transport Forum. TransSiberia 2019. Advances in Intelligent Systems and Computing, vol 1115. Springer, Cham. https://doi.org/10.1007/978-3-030-37916-2_6
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DOI: https://doi.org/10.1007/978-3-030-37916-2_6
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