Three-phase asynchronous motorThe input power refers to the active power obtained by the motor from the power supply, generally usedP1To express; The output power of the motor refers to the mechanical power output on the shaft of the motor, which is generally usedP2To represent. Today withMori machineLet's learn about the input and output power.

       When the motor is running, there is a certain power loss inside; Our common symbolsηTo express the ratio of output power to input power--The efficiency of the motor can be expressed by the formulaηP2/P1*100%; High efficiency means small loss, on the contrary, low efficiency means large loss. In order to380VtheThree-phase AC asynchronous motoradopt△When connecting, for example, the voltage on each phase winding is380VBut if it falls intoYIn this case, the voltage on each phase winding is determined by380VDrop to220V. At this time the output torque ratio of the motor is adopted△The output torque of the connection is one-third smaller, if it is still running at rated load, it may burn the motor because of overload.

       Of course if the motor stator windingYConnect to△Connection, connect to380VOn the power supply, then the voltage of each phase winding will be determined by220VRise to380VThe stator winding current will also increase, which may burn the coil due to overload. Therefore, it is necessary to conduct the correct wiring according to the provisions on the motor nameplate, so as to ensure its normal operation.

       The above content is composed ofAsynchronous motor manufacturersMori machineIt is provided,19Year motor brand,3KWThe following small power motor manufacturers. If you want to know more about this type of motor or are interested in learning about our products, please leave a message online or call us directly0575-8378-1127.