The cause of the three-phase asynchronous motor can't start

1),2) didn't plug in,blown fuse 3),4) circuit,stator winding of the stator or rotor winding grounding

5),and stator winding short circuit 6),7) of the stator winding wiring error,overload acmotortrading.blogspot.com or mechanical transmission was crushed loose article 8),the rotor copper 9),no oil in the bearing,axis due to heat expansion,obstruction in the bearing rotating 10) wrong wiring,control equipment or damage to the 11),over-current relay size 12),old starting switch oil cup of gasoline generator spare parts oil,13),wound rotor type motor starting operation error 14),wound rotor type motor rotor resistance with 15),bearing damage Three-phase asynchronous motor can't start many factors,a detailed analysis should be done according to Motor vehicleac tual condition and symptoms,carefully check,can't get to start for many times,especially when the starter motor when abnormal noise or overheating,should immediately cut off the power supply,after find out the reason and rule out any 220v ac electric motors starting,in case of failure to expand.