Three-phase asynchronous motorDue to different wiring methods, different loads and different currents, the protective measures we need to take are different todayMori machineXiaobian will take you to understand how to maintain the next phase when running.
Like someYThe phase current is equal to the line current when the motor is running without phase, which is related to the load driven by the motor. ifThree-phase asynchronous motorAdopt is△After the connection is broken with the external line, the two-phase winding of the motor in series will become a parallel relationship with the third group of windings, connected to the two-phase voltage, and the load of the motor is proportional to the increase, in the case of rated load, if the first current increases3/2When the current of the two windings in series is unchanged, the current of the other phase increases1/2Times.
In the case of light load, the line current will increase from the light current to the rated current, the two-phase winding current remains unchanged, and the third phase current will increase about this time1.2About twice that.△When the connected motor runs in the absence of phase, the line current and phase current will not only differ with the difference of the line break, but also change according to the different load.
Bring aboutThree-phase asynchronous motorThere are the following reasons for out-of-phase operation:
1The use of poor environment or some reason caused by a phase of the power supply out of phase
2Insurance abnormal fuse
3The starting equipment and wires and contacts are damaged or burned out, loose, poor contact, etc., and may also be caused by improper selection of power supply
4A phase of the stator winding is broken
5The motor itself is faulty
6The boot device itself is faulty
We should also do daily maintenance and records in the usual use process, which can reduce the occurrence of failures.
The above content is composed ofThree-phase asynchronous motor manufacturersMori machineIt is provided,19Year motor brand,3KWbelowSmall 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.