SPEED REGULATION DEVICE FOR ELECTRIC STOCK Russian patent published in 2017 - IPC B60L9/02 B60L15/08 H02P7/00 

FIELD: electricity.

SUBSTANCE: device includes four DC traction engines, windings of anchors (1) - (4) and excitation windings (11), (12), (15), (16), contactors (6), (7), ( 8), (17), (19), pulse converter (10), brake switch contactors (24), (29), thyristors (14), (21) and GTO thyristors (18), (20), (21), (34). With regenerative-rheostat and rheostat braking, the windings of the anchors (1) - (4) of the DC traction engines are closed through the GTO thyristor (34) to the resistor (33). In the regenerative, regenerative-rheostat and rheostatic braking modes with sequential and parallel connection of groups of windings of the anchors, the DC traction engines have the independent excitation.

EFFECT: expansion of the device functionality due to the implementation of rheostat and regenerative-rheostat braking modes in addition to the regenerative braking mode.

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