Page:Electrical Engineering Volume 2.djvu/13

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CONTENTS.

Dynamo-Electric Machine Design. Page. Factors Limiting Output - - - - - 2391 Heating of Machine ------ 2391 Speed of Armature ------ 2395 Heating of Field Spools 2395 Armature Reaction: Smooth Core - - - 2397 Current Density in Armature Conductor - - 2415 Armature Reaction: Slotted Core - - - 2415 Armature Reaction: Constant-Current Dynamos 2419 Magnetic Densities ------ 2421 Calculation of Field Ampere-Turns - - - 2423 Design of 12-Horsepower Dynamo - - - 2426 Characteristic Curves ------ 2449 Efficiency - - - - . - . 2457 Mechanical Construction - - - - - 2468 Connection Diagrams ------ 2513 Assembled Machines ------ 2515

Motor Design. Principles of Operation . - - . . 2517 Dynamos and Motors Compared - - - - 2518 Action of Motor - - - -. - - - 2519 Classes of Motors -.---.- 2529 Shunt Motors - - - - - - - 2530 Series Motors ------- 2533 Differentially Wound Motors - - - - 2539 Starting Rheostats ------ 2540 Automatic Switches ------ 2544 Series-Motor Connections ----- 2545 Regulating Rheostats ------ 2546

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