LIGHT WEIGHT DC SERIES TRACTION MOTOR WITH HIGHER POWER TO WEIGHT RATIO FOR HIGH SPEED BOARD GAUGE DIESEL ELECTRIC LOCOMOTIVES

摘要

A light weight DC series traction motor (3) comprising of high permeability steel magnet frame (1), armature (007) built from electrical quality low loss sheet steel laminations (009) insulated from each other and assembled on the shaft (008), commutator (013), poles and field coils (014), a plurality of brush gears having brush holders (4), gears and gear case (015), axle suspension bearing and armature bearings, characterized in that said traction motor has a power to weight ratio pf 0.97 and a core to commutator ratio of 1.315.