Three-phase current unbalance is an important indicator of power quality, under normal circumstances, the state of unbalance is caused by three-phase components, line parameters or asymmetry, because the factors are not necessarily, so the three-phase voltage and current of the power supply point is easy to appear such a phenomenon, on the power supply pointThree-phase asynchronous motorWill also cause adverse effects, will make its loss increase, heat increase, harm the normal operation of the motor, then how do we avoid such a situation? The following is andMori machineLet's learn about it.

       There are many reasons for the three-phase current unbalance. When we find the three-phase current unbalance, we should first check whether the three-phase power supply voltage is balanced. When the cause is generated, it is generally the voltage imbalance degree4-7If the voltage unbalance degree is3.5%Is, then the current imbalance at this time is12%-25%This value will makeThree-phase asynchronous motorThe loss increases about20%.

       The treatment method that causes the three-phase current imbalance of the motor is to check the power supply voltage first and find out the reasons for the voltage imbalance, such as the different cross-sectional area of the three wires, the contact resistance of the wire link head is too large, the wire connection at the knife switch and fuse is poor, the three-phase load of the transformer is seriously unbalanced, the transformer voltage tap changer is faulty, etc. These are possible causes of voltage imbalance, we want to specific reasons specific analysis, and to solve, if it is indeed the problem of power supply voltage quality, thenThree-phase asynchronous motorCan only reduce the capacity to use.

       The above content is composed ofThree-phase asynchronous motor manufacturersMori machineIt is provided,19Year motor brand,3KWAnd belowSmall 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.