Ac contactor common faults are

 Stator And Rotor ac induction motor parts 
Specifications
1. 20 years manufacturing experience 
2. competitive price,high quality 
3. Material: silicon steel 
(1) after electrify cannot switch or not completely closing, the reason is incorrect or insufficient voltage coil diesel engine voltage grade, the moving parts screens, contact super bout and contact spring and release the spring force is too large, etc.; (2) the absorption 3 phase induction motor generator process is too slow, the reason lies in the dynamic and static core air gap is too big, backlash is too large, lack of coil auto spare parts voltage, 3 phase induction motor etc.; (3) too much noise or vibration occurs, the reason is diesel generator set that the circular fracture, coil voltage, core board face with dirt and rusty spot, etc.; (4) coil damaged or destroyed, the reason is that inside the coil wire break or interturn short alternator generator circuit, the coil in the over voltage or under voltage operation, etc.; (5) coil core when the power is not released, its reason has remanence is too big, reaction force is too small, board face a viscous oils, all moving parts for etc. 6. Contact and high fusion welding, the reason is that the load current is too large, distance is too small, the contact pressure is too small and breaking capacity is insufficient, contact contact with metal particles squirrel cage induction motor acmotor2.blogspot.com bump or foreign bodies, vibration too intense or occurred many times in the process of closing, etc.