310 / | HD | ELECTRICAL GENERATOR OR MOTOR STRUCTURE |
10 | DF | DYNAMOELECTRIC {5} |
40 R | DF | .~ Rotary {28} |
179 | DF | .~.~ Windings and core structure {7} |
180 | DF | .~.~.~ Field or excitation windings or structure {9} |
190 | .~.~.~.~ Magnetic shunts for shifting field flux |