engleski

Modern Design of Onboard Traction Transformers

This paper describes modern design of an onboard traction transformer, i.e. design of the active part and cooling system depending on application and use of special materials. The influence of power supply characteristics (AC or DC) on transformer design and differences between uni and multi-system transformer design have been presented. Finally, it is described how the harmonics in the load current influence the transformer design, especially the design of the cooling system.

traction transformers ; multi-winding transformer ; railway vehicles ; multi-system locomotives ; current harmonics ; high thermal class ; synthetic ester ; Nomex

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