I have two questions. 1. What is synchronous motor? 2 What motor is used for the bridge crane. Forward or reverse?
The motor whose rotor speed is equal to (or even greater than) the speed of the stator rotating magnetic field is a synchronous motor. There are many types of motors for bridge cranes, which are generally special motors for lifting, that is, there is a letter Z in the motor model. There are wound motor and tapered rotor motor (hook), etc. The motors on the crane are reversible. The motor of crane mostly adopts winding motor, which has a large starting torque and is very suitable for lifting machinery