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.
Highlights
Any device loses its performance over time, traction transformers too
Its malfunction or downtime leads to a lack of power supply to the rolling stock, which, in turn, leads to a downtime of the rolling stock and, as a result, to many other problems.The uninterrupted and trouble-free operation of electric trains depends on the condition of the traction transformers [1, 5, 6]
Analysis of literature sources shows that [7-16] during the operation of transformers, malfunctions can be observed in the form of failure of the magnetic circuit, insulation failure, faults at the output of the transformer, oil leakage, cracks inside the transformer, excess of the permissible oil temperature, violations of oil circulation, loss of dielectric properties of oil, cracks in the rods, transformer operation with noise
Summary
Any device loses its performance over time, traction transformers too. Traction transformers are the main source of electricity for electric trains [1, 2-4].Its malfunction or downtime leads to a lack of power supply to the rolling stock, which, in turn, leads to a downtime of the rolling stock and, as a result, to many other problems (late arrival of passengers and cargo at the destination, violation of traffic schedules, etc.).The uninterrupted and trouble-free operation of electric trains depends on the condition of the traction transformers [1, 5, 6].
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