Take a quick lookThree-phase asynchronous motorQuestions about torque and speed:

       About torque:

       1. Three-phase asynchronous motorThe important reason why the torque is not large is because the power factor at the start is low, not the low voltage at the start.
       2.If increase motorThen the starting torque will increase and the starting current will decrease. (High torque remains unchanged)
       3.Overload capacity refers to the greater the overload coefficient, the stronger the overload capacity. Overload coefficient=High torque/Rated torque, range is1.8-2.5.
       Related speed:

       1.In the case of constant mechanical load, if increased motorThe resistance of the rotor, the speed will be reduced.
       2.In the case of constant mechanical load, when the power supply is reduced, the rotor speed will also be reduced.
       3. Three-phase asynchronous motorWhen the machine is under heavy mechanical load, the stator current will increase and the rotor speed will decrease.
       Expanded:
       1.At the choice motorRated power is an important indicator, the so-called rated power refers to the output of mechanical power rather than electrical power.
       2.The rated power is the frequency of the power supply during operation.
       3.Rated voltage reference motorThe line voltage applied to the stator winding during operation.
       4.The rated current is the line current of the stator winding.
       The motor connection is shown as follows: