Fault phenomenon:after connecting a motor can't start

Reason and solutions:1.Stator winding connection errors-check and correct it 2.Stator winding is open circuit,short circuit grounding,orbiting around the rotor winding circuit electric motivation - find out the fault point,troubleshooting 3.Under the heavy load or actuator three phase generator stuck-check the transmission mechanism and wholesalemotor.blogspot.com load 4.Wound rotor motor rotor circuit open circuit (brush and slip ring poor contact,rheostat circuit,lead poor contact,etc.),find out the breaking point,to repair them 5.Power supply voltage is gasoline generator too low,check the reason and ruled out 6.The power supply lacks-check the line,recovery phase.