How to configure the motor power of sewage aeration roots blower? How to choose?

How to select proper motor for sewage aeration roots blower? Please don't hurry! Shandong Xinqianshun Machinery will first explain the difference between the squirrel cage motor and the winding motor.

Three phase asynchronous motor consists of stator and rotor. The stator is a fixed part of the motor, which is used to generate a rotating magnetic field. It is mainly composed of stator core, stator winding and base. It is the rotating part of the rotor motor and consists of the rotor core, rotor winding and shaft. Its function is to obtain rotating torque under the action of rotating magnetic field. According to different structures, rotors can be divided into squirrel cage rotors and wound rotor.

The winding of the squirrel cage rotor is cast from the bare conductor bar placed in the rotor core slot, the annular end rings at both ends and the blades. Medium and small rotors are generally made of cast aluminum. For motors with a capacity of more than 100KW, because the quality of cast aluminum is difficult to guarantee, copper bars are usually inserted into the slot of the rotor iron core, and end rings are welded at both ends in a shape similar to a squirrel cage. The winding of the wound rotor is similar to the stator winding. The insulated conductor is embedded in the slot of the rotor core to form a star connected three-phase symmetrical winding. Then, the three outgoing terminals are respectively connected to the three slip rings on the rotor shaft, and then connected to the external circuit through the brush to improve the starting performance or adjust the motor speed.

Squirrel cage motors are widely used because of their simple structure, low price and relatively simple operation control. But the winding motor has complex structure, high price, relatively complex operation control and relatively few applications. The winding motor is generally used for heavy load due to the large starting and running torque.

The above is about the selection of Roots blower motor for sewage aeration. I hope it can help you!