DEVICE TO CONTROL FORCED AIR COOLING SYSTEM OF ELECTRIC LOCOMOTIVE TRACTION MOTORS

摘要

FIELD: railway transport.;SUBSTANCE: invention relates to devices which control motor-fans in forced air cooling system of electric locomotive traction motors. Proposed device contains motor-fan 2 whose electric motor is connected through controllable converter 4 to power supply source 3, automatic regulator 9 of said power converter 4 with input comparison element 7. Output of current sensor 5 of electric locomotive traction motors and output of electric parameters pickup 8 of electric motor of motor-fan 2 are connected to inputs of automatic regulator. Nonlinear functional converter 6 is provided additionally being connected between output of traction motor current sensor 5 and one of inputs of comparison element 7.;EFFECT: improved efficiency and economy of cooling system of traction motors.;2 dwg