The no-load current of the small motor can reach the rated current60%And even higher; However, the no-load current of the large motor is only rated current25%Around;Three-phase asynchronous motorThe no-load current and rated current are related to the power of the motor, below we simply understand.

       whenAsynchronous motorDuring no-load operation, the current passing through the stator three-phase winding is called no-load current. Most of the no-load current is to produce a rotating magnetic field, called no-load excitation current, which is the reactive component of no-load current. There is also a small amount of no-load current used to generateThree-phase asynchronous motorVarious power losses during no-load operation, this part is the active component of no-load current, because the proportion is very small, can be ignored. Therefore, no-load currents can be considered as reactive currents.

       From this point of view, the smaller it is, the better, so that the power factor of the motor is improved, which is good for the power supply of the grid. If the three-phase asynchronous motor no-load current is too large, and the stator winding wire load area is certain, then the current allowed through the wire is certain, then the active current allowed to flow through the wire can only be reduced, the motor can drive the load to be reduced, the motor output is reduced, with too much load, the winding is easy to heat.

       The no-load current can not be too small, otherwise it will affect the other performance of the motor. Generally, the no-load current of a small motor is about the rated current30%~70%The no-load current of large and medium-sized motors is about rated current20%~40%. Specific to the no-load current of a motor is how much, in the nameplate of the motor or product manual, generally not marked.

       Three-phase asynchronous motor manufacturersSenli motor, from shaft processing to the whole machine assembly are completed independently; Available if needed1688Search factory name "Shengzhou Chaoli Electric Appliance Factory" , Or online consultation message, we will have business personnel to get in touch with you, you can also contact us directly0575-8378-1127.