What is the axial vibration of the motor?
Cause of vibration
Electromagnetic aspect
Power supply: three-phase voltage (unbalanced, three-phase motor phase loss)
Stator aspect: the core becomes elliptical, eccentric, loose, winding broken, grounded breakdown, turn-to-turn short circuit, wiring error three-phase current imbalance.
Rotor failure: the core becomes elliptical, eccentric, loose, and the rotor short-circuiting ring and cage strip are welded and broken. Winding rotor three-phase winding unbalance, winding disconnection, grounding breakdown, turn-to-turn breakdown, wiring error, poor brush contact
