FIELD: electrical engineering.
SUBSTANCE: field of application: electrical engineering. Traction power supply device (1) comprises current converter (27) designed to lower its output voltage to a predetermined voltage level in the event of damage, and at least one disconnector (13–19) is connected to current converter (27) on the output side to disconnect the current flow at a predetermined voltage level.
EFFECT: increase of reliability and safety of traction power supply.
13 cl, 1 dwg
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