FIELD: railway transport.
SUBSTANCE: invention relates to railway transport and can be used as a power supply for auxiliary control and communication systems incorporated with unelectrified rolling stock. Proposed generator comprises magnetically soft substrate rigidly fixed on wheel pair axle face to accommodate magnets. Besides it comprises windings made from current conducting wire coiled on elements made from magnetically soft material fixed with a gap relative to aforesaid substrate. Note here the windings leadouts are connected to commutator that serves to tap off voltage from generator.
EFFECT: higher reliability of rolling stock electric power supply.
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