MIXED EXCITATION SYSTEM OF ELECTRIC LOCOMOTIVE TRACTION MOTORS Russian patent published in 2009 - IPC B60L9/04 B60L15/20 H02P5/00 

FIELD: transport.

SUBSTANCE: invention relates to control over DC traction motors of electric locomotives. Proposed device comprises starting-regulating unit, pilot exciter source, pilot exciter supply contactor, output pilot excitation contactor, two pickups of armature rotation, current adder, sequencer unit, current limitation setting unit, armature current position setting unit, excitation current position setting unit, two analysers of traction motor shaft rotation, two comparator units, element OR, blocking unit, armature current controller and excitation current controller.

EFFECT: increased traction.

2 dwg