Alternator: An axle driven power generating machine mounted on the bogie of the coach driven through V-belt drive consisting of axle and alternator pulleys with V-belts.

4.5KW and 25KWH Alternator for 110VDc train lighting system used for self generating coaches for Indian railways Specification no. RDSO/PE/SPEC/TL/0054-2003(Rev-0) with Amendment no. 1&2.