318 / | HD | ELECTRICITY: MOTIVE POWER SYSTEMS |
727 | DF | INDUCTION MOTOR SYSTEMS {12} |
767 | DF | .~ Primary circuit control {9} |
778 | .~.~ Starting control {3} | |
779 | DF | .~.~.~> With speed control |
780 | DF | .~.~.~> Three phase motor with variable transformer to initially adjust voltage to motor windings |
781 | DF | .~.~.~> Operating from a single phase source {6} |