Choice of motors in steam and electric practice

The rise of the new electric-traction engineer has been very rapid. Within not more than a decade, men untrained in the old railroad systems, have been called on to solve some very great problems in what has been called heavy traction work. With the new engineer has come new methods, which are due to the fundamental difference in the nature of the power systems. Predetermination of power conditions is necessary in any railroad system, but it is especially so in an electric system.