Elevator traction motors are AC motors and DC motors, traction motors that drive the elevator running up and down the power source. Elevator is a typical potential energy load. According to the nature of the elevator, the elevator traction motor should have the following characteristics:

1, frequent starting and braking can be: an hour in the operation of the elevator brake from more than 100 times the number of normal, up to 180 to 240 times per hour, so the elevator motor should be able to frequent starting and braking, the work work system for the intermittent cyclical way.

2, the starting current low: in the elevator with the squirrel-cage rotor AC motor design and manufacturing, although still low resistivity material derivative of, but with the rotor short circuit rings are made of high resistivity material, the rotor winding resistance increased. On the one hand reduce the starting current, the starting current to rated current of 2.5 to 3.5 times, thus increasing the allowable number of starts per hour; the other hand, only the larger rotor short-circuit end ring resistance , which will help distribute the heat directly, the combined effect of the decline in motor temperature rise. And to ensure sufficient starting torque, usually 2.5 times the rated torque. However, compared with ordinary AC motor, the mechanical properties of hardness and decrease efficiency, slip also increased to 0.1 to 0.2. Mechanical properties of soft, so that speed range increases, but also in the work under the stall torque, it will not burn the motor.

3, low-noise motor operation: In order to reduce noise motor operation, sliding bearings. In addition, due to increase the effective diameter of the stator core and stator core punching shapes, etc. are a reasonable deal.