Alternative motor configurations as retro-fit options for diesel locomotives to aid maximum utilisation of adhesion (TM-ES-69)

D.c. series motors, driven by a locomotive alternator, are difficult to control in wheelslip to maintain good use of adhesion. Retro-fit modifications to enable more effective control in wheelslip are considered. Two options for novel motor field configurations are considered. A computer simulation of the locomotive shoving performance before and...