Investigation of factors influencing the operational characteristics of traction transformers

Abstract

This article presents the results of visual inspections and a brief statistical analysis of the data obtained in order to identify the observed defects in traction transformers of ODTsE 5000 / 25 B and OTsR 5600/25 types in operation in the railway system. The analysis revealed that the main parameters that determine the operational characteristics of traction transformers are windings and insulation. Recommendations for the prevention of faults in traction transformers and increase their service life have been developed.

Development of a simulation model for assessing the technical condition of the magnetic circuit of oil power transformers by measuring the temperature of the tank and the external environment

“…Due to the high cost of the housings, it is impossible to replace them with new ones, but you can extend the operating time [1][2]6]. Therefore, diagnostics of oil-immersed power transformers should be considered an integral part of ensuring the reliability and long-term operation of electrical power systems [7][8][9][10][11]. This practice makes it possible to effectively manage resources and ensure a stable energy supply, which ultimately has a positive effect on the economy and reliability of the energy infrastructure [9,[12][13].…”

“…This practice makes it possible to effectively manage resources and ensure a stable energy supply, which ultimately has a positive effect on the economy and reliability of the energy infrastructure [9,[12][13]. Replacing or repairing a transformer requires significant financial and time costs [6][7][8][9][10][11][12]. Diagnostics allows you to optimize costs and extend the service life of equipment [7,[14][15][16].…”

Development of a simulation model for assessing the technical condition of oil power transformers by measuring vibroacoustic parameters

“…Diagnostics of oil-based power transformers is an integral part of ensuring the reliability and safety of electric power systems [1][2][3]. This avoids serious failures and emergencies, ensures uninterrupted power supply and reduces risks to personnel and the environment [4][5][6][7]. In addition, this practice brings economic benefits to enterprises and makes it an important part of the modern electric power industry [2][3][4][5][6].…”

“…This avoids serious failures and emergencies, ensures uninterrupted power supply and reduces risks to personnel and the environment [4][5][6][7]. In addition, this practice brings economic benefits to enterprises and makes it an important part of the modern electric power industry [2][3][4][5][6]. Early detection and resolution of problems through diagnostics can extend the service life of oil-based power transformers for power supply companies [6,[8][9][10].…”

Analysis of drying methods of oil-oiled power transformers

“…Taking into account that moisture and mechanical impurities have a negative effect on the power transformer, cleaning and drying of moisture and mechanical impurities in the transformer insulation system is of great importance [5][6]10].…”