Electric braking for railroad and urban transit equipment

Sidney Withington (New York, New Haven and Hartford Railroad Company, New Haven, Conn.): One item in this valuable paper which it may be of interest to note, is that in development of dynamic braking as compared with regenerative braking on heavy trains, the dynamic method is relatively more common abroad. It is of interest to note that in this country the regenerative braking has been developed in territory where the power supply is either from hydroelectric sources or from power plants located in the midst of coal fields where the cost of fuel is minimum. The value of the regenerated energy in both cases is thus relatively very low.