The requirements of the asynchronous motor startup and types

 The requirements of the asynchronous motor starting 1, starting torque of motor is large enough. 2, on the premise of certain size starting torque, starting current as small as possible. 3, starts the required equipment is simple, easy to operate. 4, rotor power loss in the process of start as small as possible. Squirrel-cage asynchronous motor start. Direct start that start with voltage on the stator winding of the motor rated voltage. Three-phase asynchronous motor direct start (a) meet the conditions of electric motor parts 1, capacity under the 7.5 KW motor can be used. 2, motor at starting moment www.dongfeng-motor.com caused by the power grid voltage diesel generator set drop is not more than 10% of the power supply voltage is normal, for not often small diesel engine start three phase induction permanent magnet lamination machine generator motor the motor can be up to 15%. 3, available empirical formula rough estimates whether the permanent magnet generator motor can electricalmotor1.blogspot.com be directly started. Advantages: the boot device is electric generator simple, the startup time is short, starting operation simple, reliable, the cost is low. Disadvantages: the motor and power grid has a certain impact