FIELD: railroad transport. SUBSTANCE: device has starter-generator provided with series and independent excitation, storage battery, contactor, relay and thyristor. In normal conditions terminal of contactor is broken and made in de-energized circuit that prevents untimely wear, which is provided due to connection of thyristor provided with sluggish control unit with described terminal of the thyristor. EFFECT: prolonged serviceability. 2 cl, 1 dwg
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