The fault analyzed by Senli Motor Xiaobian for you today isThree-phase asynchronous motorNo-load fault and troubleshooting method:

       Note: If the motor fails, please be sure to be handled by technical personnel, strict non-technical personnel privately, otherwise it may cause personal and property losses.

       one. The no-load current is unbalanced and the three-phase difference is large 

       1. Fault cause analysis
       ①When the stator is rewound, the number of turns in the three-phase winding is not equal
       ②The end of the winding is misconnected
       ③The power supply voltage is unbalanced
       ④There are some faults in winding, such as short circuit between turns and reverse connection of coil
 
       2. troubleshooting
       ①Rewind the setting subwinding
       ②Check and correct
       ③Measure the power supply voltage, try removeunbalance
       ④ excludeWinding fault

       two. Three-phase asynchronous motorNo load, over load, ammeter pointer unstable, swing. 

       1.Fault cause analysis
       ①The cage rotor guide bar is welded or broken
       ②The wound rotor is faulty (a phase break) or the brush and collector ring short circuit devices are in poor contact.
 
       3. troubleshooting
       ①Find the broken bar and repair or replace the rotor
       ②Check the loop around the rotor and add Repair. 


       three. No-load current balance,But the value is large 

       1. Fault cause analysis
       ①During the repair, the number of turns in the stator winding is reduced too much
       ②Overvoltage of supply
       ③YThe motor is mistakenly connected to△
       ④In the motor assembly, the rotor is inverted, so that the stator core is not aligned and the effective length is shortened
       ⑤The air gap is too large or uneven
       ⑥When the old winding is overhauled and dismantled, improper thermal dismantling method is used, which causes the core to burn out
 
       2. troubleshooting
       ①Rewind the stator winding to restore the correct number of turns
       ②Try to restore the rated voltage
       ③Change toY
       ④reassembly
       ③Replace the rotor or adjust the air gap
       ⑤Overhaul the iron core or recalculate the winding and increase the number of turns appropriately 
       Three-phase asynchronous motorRegular maintenance and overhaul is needed to avoid and reduce sudden damage accidents.
       " Mori machine"Brand affiliationShengzhou Chaoli electric appliance factoryAfter years of accumulation of technical and service experience, timely grasp of customer needsMori machineProducts have been innovative and flexible, the concept of environmental protection and energy saving and motor design integrated, rich product research and development experience to ensureMori machineProducts of high reliability and high performance have passed the EUCECertification,3CECertification and third party quality testing.