Performance and Design of Direct Current Machines: 0

Generation of e.m.f.: work; power; torque. 2 magnetic circuit of the direct current machine. 3 armature windings. 4 amature reaction. 5 growth of current in a circuit: iron losses. 6 commutation. 7 excitation and field windings. 8 load characteristics of direct current generators. 9 load characteristics of direct current motors. 10 control of direct current motors. 11 efficiency-temperature rise-ventilation. 12 testing. 13 special machines. 14 insulation- armature and field coils. 15 mechanicla details. 16 design considerations. 17 design of d.c generator; main dimensions; armature. 18 design: the field system. 19 further examples of design of motors and generators. 20 eddy current losses in armature conductors