How is the technical support for slip rings?

What are the potential consequences of inadequate technical support for slip rings? It may lead to "ring fire" (arcing) or the direct burnout of the slip rings and carbon brushes. Specifically: 1. Contact resistance increases, causing the excitation current to decrease. 2. The carbon brushes and slip rings overheat; in severe cases, this can result in a fire. 3. Arcing occurs between the carbon brushes and slip rings, leading to electrical erosion of the rings, accelerated wear, and other issues. What function do slip rings perform in a generator? Simply put, the slip rings serve as the terminals for the rotor windings; they transmit the DC excitation current to the rotor by facilitating contact between the carbon brushes and the two rings.