318 / | HD | ELECTRICITY: MOTIVE POWER SYSTEMS |
727 | DF | INDUCTION MOTOR SYSTEMS {12} |
739 | .~ Reversing {5} | |
740 | DF | .~.~> With diverse motor operation {1} |
745 | DF | .~.~> With controlled saturable reactor in primary circuit {1} |
747 | DF | .~.~> Two phase motor {1} |
749 | DF | .~.~> Operating from a single phase source {3} |
756 | DF | .~.~> With controlled electronic switch for phase reversal |