what might be the sypmtoms, if theres a problem with brusehs or/and slip rings of a DC motot and of an AC motor ?whats the solution of this problem ?thanks
If you isolate your question only to the rings or brushes, you can narrow possible problems down to corroded/worn parts, overheated parts, or poorly installed parts. The symptoms will most likely be the motor not functioning at all, refusing to start itself but will run with a little helper push, noises from the end with the parts, or a completely locked up motor. The solution to the problem is most always replace the worn parts. In most cases ive seen tho, if the rings or brushes have worn naturally (without the help of careless operator), other parts are getting ready to go out (bearings, coils, and such). The symptoms can differ between the types of motors as well and always check the input power source and controller before you pull the motor apart.
