The motor itself the cause of overheating

A circuit,motor winding,when one phase winding break in the motor winding,or in the parallel branch has a branch circuit,will lead to unbalanced three phase current,overheat the motor.B,motor winding short circuit,when the motor winding short-circuit faults on the short circuit current is much bigger than the normal working current,make winding copper loss increases,cause the winding overheating,even destroyed.C,motor connection error,when misconnect into star delta connection motor,motor full load permanent magnet motors for sale operation,still more than rated current flows through the stator winding current,and www.dongfeng-motor.com even cause the motor to stop,if the shut down time is a bit long,not to cut off the power supply,winding is not only a serious overheating,will also be rotor and stator destroyed.

Misconnect when star connection of motor into a triangle,or several coil string into a branch set of motor fault into two branch in parallel,will overheat the winding and iron core,serious when will burn winding.E,motor ac electric motor parts connection error,when a coil,the coil group or a phase windings to reverse,will lead to serious unbalance of three phase current and make the winding overheating.F,the mechanical failure of the motor,when the motor shaft bending,there was something wrong with bad assembly,bearings,etc.,all can make the motor current increases,the copper loss and mechanical friction loss increase,make the motor over heat.