2
6
8
10
slip rings
commutator segments
solid connections
carbon brushes
Stainless steel
Aluminium
Cast iron or welded steel plates
Laminated silicon steel
open phase
unbalanced currents in the phases
improper alignment of the rotor
any one or more of the above
Non salient pole alternator
Turbogenerator
salient pole alternator
steam turbine alternator