Repulsion motor
![700 horsepower Brown-Boveri-Déri repulsion motor with 10 poles to be used with 16 2/3 Hz single phase current. Two of these motors were used in the French electric locomotive Midi E3301](/Images/godic/202502/07/Deri_Repulsion_Type_Motor_Midi_E_33012608.png")
![](/Images/godic/202502/07/Repulsion_als_symbol_kurzschluss.svg2608.png")
![](/Images/godic/202502/07/Repulsion_als_symbol_leerlauf.svg2608.png")
![](/Images/godic/202502/07/Repulsion_als_symbol_rechtslauf.svg2608.png")
A repulsion motor is a type of electric motor for use on alternating current (AC). It was formerly used as a traction motor for electric trains (e.g. SR Class CP and SR Class SL electric multiple units) but has been superseded by other types of motors. Repulsion motors are classified under single phase motors. In repulsion motors the stator windings are connected directly to the AC power supply and the rotor is connected to a commutator and brush assembly, similar to that of a direct current (DC) motor.