The energy saving of the motor

    With  the shortage of resources, countries are looking for ways to save  energy, tap the energy-saving potential of the motor, find an effective  way to reduce consumption is an effective way. There  are many ways to reduce the energy consumption of the motor, such as  improving the efficiency of the motor, increasing the power factor of  the motor, saving energy saving, saving energy saving and so on. Now from the power factor to discuss the motor energy saving.
    Asynchronous  motor power factor with the load changes, the rated load power factor  is higher, light load when the power factor is low, generally between  0.2 to 0.85. Asynchronous  motor in the course of the operation will be in the power grid to  absorb a large number of inductive reactive power, so that the power  grid power factor deterioration, the system operating efficiency. Can be used to adjust the reactive power compensation method. Asynchronous motor reactive power compensation, is to ensure that  the motor under the premise of normal work, by compensating to improve  the power factor of the electricity lines, while reducing the power  supply lines and transformer losses.
    Reactive power compensation methods are: (1) shunt capacitors. Usually in the motor outlet side of the junction of the capacitor. In  the absence of capacitance compensation, the line current hysteresis  voltage of the electrical angle is large, the compensation, the line  current lag voltage electrical angle relative to the reduction. Thereby increasing the power factor of the line. (2)  the installation of power factor static compensation device, the device  mainly by the AC filter device and the capacity can be continuously  adjustable inductive reactive power equipment can be stagnant phase  operation. After  increasing the power factor of the power grid, the apparent current of  the system is reduced and the loss of the power supply system is reduced  under the premise of ensuring the constant active power, so as to  effectively realize the energy saving.