How to deal with the fact that the generator slip ring carbon brush catches fire

Causes and troubleshooting methods for generator slip ring carbon brush fire: 1. The surface of the generator armature collector is not clean. Due to long-term operation, there is an oxide layer on the surface, which causes poor contact between the two. carbon brushes and causes sparks. It is recommended to use fine sandpaper to wipe lightly to make good contact with the carbon brush. 2. Due to friction and long-term use, the surface of the armature commutator is pitted and uneven, resulting in poor contact of carbon brushes and sparking. It is recommended to use a lathe to lightly cut the collector. 3. There is dirt between the collectors and needs to be cleaned.