In the last post we learned five things aboutThree-phase asynchronous motorThe reason for not turning, here again emphasize that if the motor fails, be sure to ask technical personnel to deal with maintenance, and strict non-technical personnel to disassemble, so as not to cause unnecessary losses.
1.Possible causes of short circuit between turns of stator winding: the winding of the motor is composed of many turns, when the short circuit between the coils may cause the motor not to turn, the multimeter can be used to check, find out the short circuit of the two chambers, openThree-phase asynchronous motorDisconnect the connection line of each coil in one phase, check the short circuit point in groups, and re-insulate after finding out.
2.When the stator winding is short-circuited to the ground, it can be checked by a pendulum or multimeter to find out the ground winding. If the insulation is damaged, re-insulation can be replaced when the winding is serious. If it is damp, it can be dried and then coated with a layer of insulating paint;
3.Stator winding wiring error: disassembleThree-phase asynchronous motorFind the error and rewire.
4.Winding motor rotor slip ring contact is poor: correction slip ring shows that adjust the carbon brush pressure.
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